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The focal length is an important consideration because all DSLRs do not have the same size image sensor. For a camera with a full frame sensor, a given focal length will provide a magnification, angle of view and depth of field similar to a 35mm film SLR. For cameras with smaller sensors, the magnification is increased by a factor of from 1.3 to 1.6. The angle is more narrow and the depth is likely also affected. This is more bang for the buck if magnification is desirable, but when you need a wide angle, such as a 24 or 35 mm lens, the size factor works against you. So you will get an angle of view more like you would see with a full frame sensor at 35mm x 1.6 or 56mm (not very wide). Fortunately manufacturers have produced a new series of lenses to give an extra wide angle of view for these bodies and sensors.
Care must be taken if you plan to use the lens on more than one camera, as some DSLR lenses extend deeper into the body (closer to the path of the mirror) and may not work on all cameras. These will often have some marking to indicate that they are for digital only, which signifies that the dimensions are unique.
A good lens for any SLR camera should be sharp and have a useful range of F-stops or apertures. Sharpness is part glass quality, lens shape (Spherical vs aspherical) and number of elements and type of coatings used. Smaller f-stop numbers (or large apertures) give faster shots in lower light and help to blur the background. While the larger number (smallest aperture) determines the maximum depth under any conditions. The widest f-stop will also dictate whether your lens will still auto focus with a tele-extender. So check compatibility.
These factors all have to be balanced against the cost and proportions of the lens. A heavy lens may require that a tripod is mounted at the lens instead of the camera. They can be cumbersome and obvious, making it hard to get candid shots. Lenses for full frame bodies tend to be more in the bulky category, but can be worth it.
Some 'digital' lenses have an extra coating designed to cut ghost due to the refective nature of the image sensor. There are differing opinions as to whether of not this is necessary. But there do not seem to be disadvantages.
Auto focus speed is determined by the type of motor and gears. This also affects cost. The type of mechanism can affect how long your batteries last or whether you have enough battery power for the lens to work as intended. You need fast focus for action shots. Some lenses have image stabilization. Not all stabilization designs are equal and sometimes that feature as already in the body.
The filter size is another factor. Does the lens take a filter which is expensive and hard to locate, or is it common and maybe the same size used with your other lenses?
Check the location of the manual focus and zoom controls. Are they easy to use? Does the price include a sturdy case and a lens hood?
Kind of wordy I know, but there is much to consider.
What else can I help you with?
What is a DLSR camera?
DSLR = Digital Single Lens Reflex It's a digital camera made to look like a 35mm SLR. Usually the lens is interchangeable, but not always. - - - - - It is a camera with a detachable lens for great shots Hope this helped
What is digital single reflex lens?
A Digital Single Reflex Lens or DSLR is a type of camera which uses a series of mirrors inside the camera, so that when you look inside the viewfinder of a DSLR, then you will see almost precisely what the camera sensor sees, accurate to a few thousandths of a millimetre. This construction of the mirrors makes the camera more expensive to make, and most cameras simply use the easier and cheaper method, digital viewfinders, which only work when the camera is turned on, whereas on a DSLR, you can look through it anytime (as long as the lens cap is off!)
What size lens cap do I need for my camera?
To determine the size of the lens cap you need for your camera, you should look for the diameter measurement on the front of your camera lens. This measurement is usually in millimeters and will indicate the size of the lens cap you should purchase.
What lens cap size do I need for my camera?
To determine the correct lens cap size for your camera, you should look for the diameter measurement marked on the front of your camera lens. This measurement will indicate the size of the lens cap you need to purchase.
What is the difference between point and shoot camera and DSLR camera?
A single lens reflex (SLR) is a camera that uses the same set of lenses to both focus the image on the CCD (digital) and enable the photographer to frame the picture. That is to say, when you look through the viewfinder of a DSLR you are looking directly at the object through the main lens. You are not looking at the digitally re-created picture of the object or through some other lens that is off-center of the main lens. A point-and-shoot camera will have some other mechanism for framing the picture.
What size lens filter do I need for my camera?
To determine the size of the lens filter you need for your camera, look for the diameter measurement on the front of your camera lens. This measurement is usually in millimeters and indicates the size of the filter you should purchase.
What is the best slr camera for beginners?
The Canon Rebel DSLR is what you will want to look at.
What is slr n dslr?
SLR & DSLR are acronyms for: Single Lens Reflex and Digital Single Lens Reflex SLR gave photographers the possibility of seeing exactly what the camera is going to take by bouncing the image off a mirror into the viewfinder. Before the viewfinder was created it was separate from the lens which gave the photographer an approximate of what the camera is capturing however it wasn't very useful. Over time photographers were trying to figure out how to look through the lens to see exactly what the camera is capturing and placed a mirror in between the lens and film/sensor that reflects the image up into a prism and into your viewfinder- quite genius if you ask me. This system is called single lens reflex. Hope that helps!
What are the best features to look for in a flexible tripod for a DSLR camera?
When choosing a flexible tripod for a DSLR camera, look for features such as sturdy and bendable legs, adjustable height, compatibility with your camera's weight, and a secure mounting plate. These features will provide stability and versatility for capturing shots from various angles and surfaces.
What are the best features to look for in an underwater DSLR camera housing?
When choosing an underwater DSLR camera housing, look for features like durable construction, reliable sealing mechanisms, ergonomic design for easy handling, compatibility with your camera model, and additional features like ports for accessories and controls for adjusting settings underwater.
What are the best features to look for in an underwater DSLR camera?
When choosing an underwater DSLR camera, look for features like high resolution, low light performance, fast autofocus, durable construction, and compatibility with underwater housings. These features will help you capture clear and vibrant images underwater.
What are some user-friendly features to look for in a DSLR camera with WiFi for beginners?
When choosing a DSLR camera with WiFi for beginners, look for user-friendly features like easy-to-use menu navigation, intuitive touchscreen controls, automatic settings for quick shooting, and built-in guides or tutorials to help you learn how to use the camera effectively.
