That is why you will see people buying Vortex and some people buying Leupold to some going in for Nikon’s and Bushnell’s.

That said there are same features that you should know which will help you select the right binoculars for bird watching.

Magnification – You should go in for a 7, 8or at max a 10 magnification and the reason being that with anything above 10 the overall available area which is called as Field of View will become less and less. That may not be good with bird watching as you need to have a bigger area to view all the birds which are there.

For detailed discussion on magnification so you read this page here.

Objective Lens diameter – this has been discussed here a number of times whoever for the sake of completeness I must say that the best objective lens diameter for birding binoculars is to be tween 30mm – 40 mm. The bigger the objective lens diameter the expensive and bulkier it will be. No doubt it will give more light however there has to be a balance between all three factors.

Exit pupil – The basics about exit pupil can be read here however the best binoculars which are required by bird watchers should have an exit pupil of 4mm.

Filed of View – This is something which is a must to know so that you can view the birds properly. The requirement of birding  binoculars is very different than hunting binoculars when it comes to Field of View and the reason is that you are looking at small creatures as opposed to some large animals like deer etc. Here is a primer on Field of View.

The field view is in inverse relation to magnification. So that means that higher the magnification the smaller will be the field of view. It is here the individual preference will come in and you may need to strike a balance between these two.

Prism design – Roof vs Porro prism design.

You can read about Porro prism and roof prism however the decision on which one to use for bird watching is something that you will need to take. Roof prism binoculars are more costly but they are more lightweight. Take your pick  !

Lens coating and light transmission. – I have done a detailed article on binoculars lens coating and that should be read before you make a decision.

Apart from these I do not think you should be worried about anything while selecting the best binoculars for bird watching. In fact there are a lot of small things like binocular waterproofing and binoculars ruggedness however these are  better left as individual decision as opposed to something which is a must have for selection of a good pair of binoculars.

Finish - These have very good matte finish and a very good construction to boot. With these you can very easily remove a scope and then again reattach to the mount with relative ease and also the same setting as before.

Tip : It is always better to go for the best scopes and the rings form the same company else there can be issues with the ease of mounting and the compatibility.

The brands which are there are

Browning Riflecsope mounts

Leupold Riflescope mounts  – I like the Leupold QRW mounts the best given the fact they are  a breeze to use and they are definitely the best ones if you like me have the urge the rifle scopes.

NightForce riflescope mounts

Vortex riflescope mounts

Mounting system – What is needed.

The mounting system on a riflescope is a must so as to use the riflescope properly and even more important is to understand how the total mounting system works.

Let us understand the importance of the scope mounts. You can have the best of the rifle for shooting however is the scope is not mounted correctly chances are that you will either not fire properly or even if you fire properly there are chances that the alignment is not that great.

Tip : make sure that the installation of the rings and the bases is done by a professional as opposed to you doing it yourself and the reason being that it can be dangerous and can also harm the rifle. Yes there is a cost attached to it however that price to a professional gunsmith is worth to pay rather see you getting the ammo damaged.

Types of mounts

There are several styles of mounting systems that are available nowadays and these are

Weaver style mount system – This systems has flat rails and has crosswide slots in them for ease of use. The best thing about these is that you can Weaver bases and the Weaver rings and you can very easily remove the rings eve with scope attached. That helps as then you can also easily slip on the rings.

Picatinny Rail System – This is similar to Weaver with the only difference being that it generally does not have the same width of the cross cuts on the rails.

Leupold style mounts – These are among the best in the class with special rings used for ease of mounting and the second of the ring is detachable.

Clamp-on mounts – The clamp on mounts do not require special mounting and they are as the name suggests are the clamp on mounts.

Material Used – The material used in the scope mounts is steel and that is the best . You can go for aluminum ones but they are not as reliable as the steel ones.

My hunting optics are definitely there but my photography arsenal is very limited so I decided to buy three things which are a must and those are the

Best point and shoot digital camera for that happy photography sessions in the office or the city

A GT 1531 tripod – Something needed for a very good photographs.

The best dslr camera for beginners. Ok I will explain why I wanted the dslr for beginners. I am a newbie when it comes to photography and on top of it I do not want to carry and ex[pensive dslr camera to a new place.

So here I go shopping for the tripod and all along all the experts that I  conferred with said that told that I would need the best tripod and that is the the Gitzo carbon fiber.

There are series of these Gitzo 1531 and the one I wanted was the Series 1 as it is easy for people on the move. If you need the some more sturdy ones the then go for GT2541 which is a Series 2.

Checkout the best deals for Gitzo Carbon Fiber Tripod

Best use

As I read the manual it said that it perfect for the DSLR’s 135mm lenses and MiniDv systems. Some say it is good for spotting scopes also however I have my doubts on that one especially the heavy sporting scope like the Pentax PF – 80ED A.

The max load that this one can afford is 17lbs. They also claim to have the G-lock which means that the heavier the weight you put on the tripod the more effective the lock becomes. It is basically a gravity lock. I think this is a good feature to have.

The one I am looking for is a 3-section tripod. Now you can even go for a four section one if you feel that packing would be an issue and also you need to have several heights while getting the photographs. I will see how the 3-section goes. I think I will be fine with a 3 –section one.

Positives

Lightweight, no doubt and the carbon fiber pioneer for tripods.

Screw locks which work smoothly

The central column is removable. The central column adjustment is sturdy and it is no doubt very easy to operate.

I liked the anti-leg rotation feature is helpful to give the model its rigidity and robustness.

Negatives.

The price is quite high for a tripod however given that it is the best in class I am sure I will buy this. So far, I have not heard any negative reviews on this one. I already own a spotting scope tripod however this one is for my camera shoots.

Some of the things that I liked was

1)     That special SMC multi-coating.

2)     I definitely liked the grip and the strong construction .

3)     As I said for the price of this it is an amazing piece of scope and much better than at the price then you would have paid for the similar Leica or Swarovski.

4)     The images are the best even at 500 yards range

5)     The best part is that you will be able to use any 1.25” eyepiece with this and make this into a wonderful scope.

6)     The biggest advantage of owning this is the flexibility of using anyone of the eyepieces. If you compared that with Bushnell which only uses standard eyepieces from Bushnell.

7)     The 80mm lens is definitely far better than that 65mm one and which translated in better and brighter image quality.

Some of things that you can remember are that if you need have some less heavy then within the Pentax it is better to go for PF-65.

See the best prices on the Pentax 80 ED

Something for the people who wear eyeglasses

Pentax scopes work with standard 1.25” eyepieces and hence I prefer Pentax. So for people like me who have eyeglasses buying a 20mm eyepieces is easier

Tips to remember:

While using the big heavy Pentax is that you will definitely need to use a good tripod stand.  This scope has a rotating tripod collar for adjusting the scopes.

This Angled one is much heavier than the regular straight Pentax.

Lenses to use

For this special piece of equipment to work make sure that you buy any on the below eyepieces.

SMC zoom, XW7, XW10 and XW14 eyepieces. Again I suggest it is better to use a Pentax eyepiece on a Pentax for the best results however it even works better other brand eyepieces.

Negatives on this one

Well if you are one of those who will go for long hikes and will like to carry a scope then this one is not for you. It is heavy no doubt.

Mirror Images:
Image orientation doesn’t really matter in astronomy. Telescopes usually present upside-down or inverted images. This has been a challenge right from the days of Galileo who invented the first telescope. Advances in technology have resulted in prism diagonals that are used to right the image. When cassegrain and refractor telescopes are paired up with the standard 90° star diagonal the resulting image is usually mirror reversed and right-side-up. This presents problems pertaining to the use of star charts. This problem is also corrected using the erecting prisms. Erecting prisms however do not work with refractor telescopes.

Prisms are therefore an essential telescope accessory since a telescope user will run into mirror images at some point. However, mirror images become a problem only when you intend to use printed materials as navigation aids. There are computerized telescopes that are able to flip the mirror images and are therefore easier to use especially when tracking planets and constellations.

Barlow Lenses:
Astronomy telescopes have objective lenses which help in the gathering of light and the creation of a well focused and sharp image. The telescope’s eyepiece magnifies the object to be viewed and is composed of several lenses. Older telescopes used to have a relay system which was used in correcting mirrored images. As a result, these telescopes used to be quite long. Currently, erecting prisms have replaced the relay system resulting in shorter and more powerful telescopes.

Barrow lenses are vital telescope accessories since they increase the focal length of the primary mirror or objective lens. They also double or triple the magnification power of the eyepiece. Achromatic lenses are double layered glass used as objective lenses in most telescopes. They eliminated rainbow images as well as the distorted ones. The distortion is usually associated with non achromatic lenses.
According to the American Astronomical Society (AAS), superior telescopes are not necessarily designated by the power of the objective lens. Astronomers pay little attention to a telescope’s magnification power. Apart from being able to identify achromatic lenses, it is also vital that your telescope be equipped with an optical coating. This allows for maximum light intake which directly impacts the clarity of the image to be viewed.

Telescope Eyepieces:
The eyepiece in a telescope has to gather as much light as possible if you are to view clear images. This telescope accessory is governed by the telescope’s f-ratio. Telescopes bearing an f-ratio of f/10 are able to produce a clear image without the use of a specific eyepiece. However, telescopes that bear a rating of f/4 will need a special kind of eyepiece. The eye relief is an important aspect when shopping for a telescope eyepiece. It is the distance that separates the eyepiece lens and your eye. By and large, the eye relief determines whether or not you are able to have a good field of view. If you wear eyeglasses, the recommended eye relief is 15mm. The field of view of the eyepiece is calculated from the eyepiece’s apparent view divided by the magnification of the eyepiece. Magnification of the eyepiece may not be all that important when buying an eyepiece for your telescope; however, it has to be considered nonetheless.

Once you have a good idea of the magnification level that you desire, then figuring out the focal length of the eyepiece becomes rather easy. The eyepiece is indeed one of the most important telescope accessories as it houses the aperture which lets in light for a clear image. The exit pupil and power/inch are two important factors that determine the size of the aperture. The amount of light rays leaving the eyepiece is what forms the exit pupil.

Telescope Filters:
These telescope accessories are purchased along with the eyepieces. Telescope filters are not vital to the functioning of the telescope. They are screwed onto the eyepiece barrel and greatly enhance the stargazing experience. There are three main types of telescope filters; light-pollution filter, colored filter and moon filter.  Colored filters are responsible for enhancing planetary and lunar details. They have varying colors which greatly reduce wavelength distortion that usually results in blurred images. Light pollution filters blocks out sodium and mercury vapour and allows in oxygen III and hydrogen beta which are wavelengths from deep space. The moon filter accentuates lunar details by limiting lunar light.

Solar filters enable the risk free observation of the sun by filtering out approximately 99.9 percent of solar light. You get to view the blazing sun without risking serious damage to the eyes or even blindness. Variable-polarizing filters function just like a dimmer switch. They lessen the amount of light coming in from overly bright cosmological bodies by as much as 40 percent. They are equipped with a rotating filter. Generally, filters are best suited for people who are interested in studying the sun or anyone who wishes to observe the stars more closely.

Telescope Mountings:
Amateur telescopes are usually mounted with equatorial and altazimuth mounts. As mentioned previously, mounts are vital telescope accessories. Observing the different constellations and other cosmological bodies would be virtually impossible without the support of the mounts. The Dobsonian mount is categorized under altazimuth mounts. It is wooden and quite sturdy. Altazimuth mounts are synonymous with amateur astronomers. They have horizontal and vertical motion axes also known as azimuth and altitude respectively. Its build is similar to a typical camera tripod. They are cheap and easy to use.

Equatorial mounts on the other hand are used extensively by professionals and hobbyists. They can be motorized for automated sky tracking. Some telescope accessories are a must have while others are just fun to have. The non vital telescope accessories can be acquired in any order, and it would depend on your passion and level of knowledge in astronomy.

Paying attention to children’s need is of prime importance to parents. If you know your kids like a telescope, get them one. Some young ones develop love for astronomy and a telescope will make a perfect gift for such a child.

The modern telescopes are now computerized. You can not only gaze at the stars in the galaxy, you can actually shoot the pictures. Upload the images on Facebook pages or tweet to friend as your accomplishment for the day.

The reflecting telescopes require a little more maintenance, as compared to refractors. You will need to recoat the mirrors every few years. The mirrors need persistent adjustment to get proper views.  But they work fine and are great for kids who explore the sky.  These are also better for viewing tiny objects in the dark, and are a preferred choice of photographers who like to capture images of the sky. There are various brands in the market one can choose from, and are available in various price ranges to suit any budget.

Comparatively, a refracting or refractor telescope uses a lens to form an image. This type of design is also used in long distance cameras. For most research work, scientists prefer the reflecting kind over a refracting one.

Among the modern types, the compact, portable, and easy to use refracting telescopes come with software that helps automatically locate and track scores of objects in the various galaxies and clusters of stars. The images can be saved for later retrieval. Some models come with more light-gathering power as compared to an average 114mm telescope. The pre-assembled, adjustable steel tripods are easy to put up.

Kids will love to locate the Messier objects, Big Dipper, Ursa Major, and Orion using the modern computerized telescopes. The activity adds fascination to thinking and helps improve cognitive abilities. They will be more obedient and pay closer attention to studies. Such children place themselves ahead of others, in terms of knowledge, and improve in both curricular and extra curricular activities. The inspiration also helps them improve in sciences of all types.

These are also great when you are going out on an adventure trip. You can camp in the mountains and at night look at Mars, Jupiter and Saturn.

When you decide to buy a telescope for your child consider a few features before you part with your money. First, it has to be durable enough to last them for a few decades at least. Look for sturdy materials that can take rough usage. The portability feature will allow you to carry the equipment to the ideal places for viewing the sky. The weight also has to be light enough for easy carriage. Ease of use is of prime importance besides the size. The device should not be extremely large, so as to fit in your car for easy carriage, when on a road trip. The range also has to be checked out against the price. Choose the one which is cheaper and gives you an extended range as compared to others.

All in all, when browsing kids telescopes, make sure you choose the right one. For images, buy a refractive one with software, and for sky gazing a reflective one is a better option. Look at all the features and compare price before you make a purchase.

The fundamental factor to remember is that the magnifying power of a telescope lies in its design and the type of eyepieces it uses. The difference in magnifying power between different telescopes is determined by the eyepieces. Simply put, the magnifying power of an eyepiece is an equation in which the telescope’s focal length is divided by the focal length of the eyepiece to derive the amount of magnification the telescope can provide.

The Relationship Between The Telescope’s Focal Length And Its Magnification
It is imperative to first learn about focal length and f-ration, in order to understand What is Telescope Magnification. Basically, focal length refers to the distance a light path takes to create a real image. This distance is necessary to determine the visual field of an eyepiece. The f-ratio refers to the ratio of the telescope’s focal length and the diameter of the light gathering source. It is expressed as f/1 or f/2 all the way to f/10. A low f-ratio, for example f/4, has a low practical magnification limit while a high f-ratio like f/10 has high magnification limit. The f-ratio is determined by the telescope’s focal length and is an important factor to consider when buying a telescope.

The Relationship Between Eyepiece Focal Length And Magnification
The term eyepiece focal length is also referred to as magnifying power of the telescope. This means that the magnifying power of the telescope is determined by the eyepiece in a simple equation expressed in millimeters. This equation is arrived at by dividing the telescope’s focal length by the eyepiece focal length. Eyepieces with long focal lengths, for example 32mm, have lower magnification while shorter focal lengths such as 10mm or even 5mm have great magnifying abilities.

The magnifying power of a telescope is another important factor to consider when purchasing a telescope. A telescope with low magnification such as 20-50X are good for wide angle views of objects while high magnification such as 20-100X are ideal for locating objects in deep sky observation. If you want to observe the moon, planets, or other compact objects in the night sky, a telescope with a magnifying power of 75-200X will be suitable for this purpose. A telescope with more than 200X will require a very steady sky to provide the additional magnification. At this point you realize that this is quite unlike the outrageous claims of 1000X Chinese made telescopes you find at some department stores.

The Issue Of Practical Limits
Naturally, it would be great to have the said 1000X or higher magnification and observe distant objects in greater and clearer reality. However, there are practical limits to all telescopes as well as the human eye. For example, if you looked through a telescope having two different focal length eyepieces, you would observe a small crisp and clear image or a big blurry image. This is because a telescope can only work with a fixed amount of light and with high magnification you will be spreading the same fixed amount of light over a large area which results in distorted images. This means that even the most powerful telescope will deliver details within practical limits. Trying to magnify beyond this limit will only provide empty of magnification resulting in distorted images.

Lenses or Mirrors

Refracting optical telescopes use lenses to create their images, reflecting optical telescopes use mirrors, and catadioptric ones use a combination of lenses and mirrors. Regardless of which type of optical telescope you are using, their ability to show little details is based on the same thing. When the diameter of the lens or mirror is larger, the detail that the telescope can show will be greater. There is a direct relationship to that diameter and the amount of detail that the telescope can resolve. When you hear people talking about telescopes, you may hear them refer to the diameter as the aperture and to the lens or mirror as the objective.

Telescope Magnification

The magnification of the telescope will depend upon the focal lengths of the main telescope and the eyepiece. The focal length is the distance that the light travels in the telescope to make an image. It affects the focal ratio or f-ratio which is the ratio of the focal length and the diameter (aperature) of the lens or mirror (objective). When a telescope has a low f-ratio, it is able to show wide fields of view with relatively low magnification capabilities. When the f-ratio is high, the telescope can perceive smaller fields but with better magnification.
Currently, the telescope with the largest aperture is the Gran Telescopio Canarias which is located in the Canary Islands of Spain. However, the most famous optical telescope in use right now is the Hubble Space Telescope. This telescope has a relatively small mirror compared to other similar sized telescopes. However, it is able to see further into space than any other telescope because it is in orbit just outside of the Earth’s atmosphere. In that location, it does not have any background light. Thus, it can collect images that have not been limited by the diffraction of outside lights. 

Aberration

Although the basic set-up of an optical telescope seems fairly simple, their images can be affected by many different things. For instance, all telescopes experience a certain degree of aberration. This refers to that fact that most images will be slightly blurred or may have other differences in appearance than they would if the viewer would able to look directly at them. Most of the time the aberration will not even be perceptible to most viewers. However, it is inevitable based on the fact that the light being perceived is not just moving from one object to the eye. Instead, it is being converged by the telescope’s lenses or mirrors.

Once you learn the answer to the question How Does An Optical Telescope Work? You may be interested in purchasing one. In addition, you may wish to consider some of the many accessories that are available for these telescopes.

Accessories

You can protect your telescope with a carrying and storage case, but you can also find accessories that boost its performance. You can buy different eyepieces for different functions, or you can get a Barlow which can be added to increase the magnification power of your eyepiece. A well made one will also reduce the aberration of the scope. The right filters can help you to look at different celestial objects at different times. For instance, one may help you to view things while the sun is out while another one may help you to reduce the brightness of the moon.

Optical telescopes use technology that has been understood since ancient times, and they have existed for over 400 years. However, they are still an extremely practical and useful thing that can benefit scientists and amateurs alike

Telescopes were first made with lenses to form an image, as this, then, seemed the obvious method of gathering light. This led to some chromatic aberrations that did not allow the correct images to be seen. This aberration was because the varying wavelengths different colors of the light spectrum passed through the lens differently. Experimentation led to the discovery that such light could be gathered  with mirrors and then focused to produce the desired images. This completely avoided any chromatic aberration.

The Advantages and Disadvantages of a Reflector Telescope

Advantages:
*  Chromatic variation is completely avoided in a reflector telescope because all wavelengths of the light spectrum get reflected in the same way
*  The objective mirror can be fully supported as it comes at the back of the instrument, and this allows for more light to be gathered in and focused on the object
*  It is cheaper to make reflectors or mirrors then it is to make large size of refractors or lenses

Disadvantages

*  Alignment of the optics is difficult to maintain
*  The telescope tube has to be left open for the mirror to gather light and this can cause problems in maintaining it free of dust
*  If secondary mirrors are used, as is quite common for making viewing more convenient, this mirror and its supports cause diffraction effects.

Why Are Mirrors More Suitable Than Lenses

Mirrors do not have to be made from a very high quality of optical glass ,like you would have to do for lenses. Refractor lenses have to be very pure, homogeneous and without bubbles. This is very difficult to achieve. In a mirror only the reflective surface matters. This allows a lot of leeway in the quality of glass used. So it is quite easy to make very big mirrors. The amount of light gathered in depends on the area of the mirror and so bigger mirrors make for more powerful telescopes. Any grinding or polishing of the mirror has to be done on only one surface. On the other hand an achromatic refractor may have as many as four surfaces that need to be ground.
Mirrors however have to be made to parabolic shapes so that they are able to reflect the light received by them to a focal point. This is not very easy and requires a lot of skill. Mirrors are covered with metallic film to assist reflection. Present day techniques use aluminum, which though less reflective than silver, which was used earlier, has certain advantages. Any tarnishing of the reflecting surface does not reduce its effectiveness as the aluminum oxide formed is transparent. 

How does a  Reflector Telescope Work

The major component of a reflector telescope is the primary mirror which has a concave shape. This shape allows the light source to form an image at some distance in front of the mirror. This distance is referred to as the focal length. However if you do position yourself at this point, it is likely that you would get in the way of the light source and thus spoil the image. To get over this problem, another flat mirror is positioned at this point. It is adjusted diagonally in such a way, that the image is then sent to a eyepiece that is  more conveniently located. The eyepiece is then used to magnify the image. This is the basic design of a Newtonian telescope.
The Cassegrain reflector on the other hand has a hole in the reflector. The image is then focused on a curved secondary mirror placed at the focal length. This curved mirror reflects the image back, through the hole created in the reflector. This is where the eyepiece is placed.

How to choose your first telescope will depend on the reasons which have led you to wanting a telescope in the first place. It has to be one that you will use quite often to achieve the astronomy goals you have set yourself. Again, the telescope you buy has to be one that is of the right size, easy to use and within the budget that you have earmarked for it.

Types of Telescopes on Offer

If you just want to view the moon and other planets you can always go in for the long thin telescopes that are the refractor type which collect the light through lenses. They are handy and easy to carry and will give you sharp images of the objects you want to view. If you are keen on looking at objects deeper in the sky you will have to consider a Newtonian type of telescope that uses mirrors instead of lenses to gather light. They however produce upside down images and are thus suited only for astronomy and cannot be used to view objects on earth. The larger the apertures of such telescopes the more the light that can be gathered in and therefore objects in deep space can also be viewed. There are compound telescopes that use both mirrors and lenses and are more compact and easy to use.

Important Features of A Telescope

All telescopes function by gathering light and this capability of any telescope is determined by the aperture or diameter of the lens or mirror. So large aperture of telescopes are the first determining point for the purchase of one. Such large apertures yield sharper images, though the viewing condition or air turbulence does pay a large part in the clarity of images.

Magnification is a feature that is to be considered after deciding on the aperture, as magnification does not make for better viewing. When an image is magnified too much it blurs the image and may even amplify the effects of air turbulence that effects clear viewing. So sharper images are more likely to be obtained from lower powers of magnification. Magnification of a telescope can be changed by changing eyepieces and most telescopes will allow you to change the eyepiece depending on the sharpness of the image that you want to see. An ideal telescope should have three eyepieces for low, medium and high magnification. There are other ways of increasing the magnification by inserting a lens before the eyepiece, but this is better done after you have used the telescope sufficiently to decide on exactly what you need from it. 

Most telescopes also come with mounts, so that you can hold the telescope in the desired position without too much of trouble. There are different types of mounts available and each of them comes with its own advantages. It is best to buy the simplest type for your first telescope and upgrade after you feel the need for it.  You can even buy very sophisticated mounting that is computer controlled and will allow you to determine the exact position of the area you are viewing. This allows you to exactly pinpoint your area of interest and come back to it very easily every time.

Deciding on a Telescope

Once you have made up your mind to buy a telescope you will first need to decide on the amount of money that you are prepared to spend for your hobby of star gazing. You also need to decide on how portable you want your instrument to be. If it only backyard or rooftop viewing that you are contemplating, you can go in for a model with a bigger aperture and a proper mount as the telescope is likely to remain in one place. If however you are planning to go on field trips, you will need a model that is more portable and easy to carry and set up. You will also have to consider the ease of use and the  versatility that you want from it. If you want a model that you can use to take photographs you will need to buy a certain type of telescope that makes such photography possible.