Does the tube in this lens extend out when it is zoomed out? Or does it have an internal zoom mechanism?
268739
It extends; not internal focusing. One of the few downsides- lens is incredibly sharp, focuses quickly, fabulous image quality. Since I can shoot at high ISO with my D4, is now my main lens for hockey. Perfect zoom range...
268740
Lens tube extends out from 80mm to fullest extent 400mm by hand, no automatic nor internal zoom mechanisms involved.
1601936
A zoom is lens that allows the focal length (magnification) to be changed continuously over a range. For example, a 25 - 100 mm zoom provides magnifications from 0.5X (wide-angle) to 2X (telephoto).A telephoto lens is one that provides magnification greater than 1X. For example, a 200 mm lens gives 4X magnification. It can be a fixed focal length or a zoom lens.A super-telephoto is one that provides high magnification. Generally super-telephoto focal lengths are in the range of 300mm (6X) to 1200mm (24X).
149357
It is a fixed focal length lens and the focusing is entirely internal. It's a great lens. Love it.
1833626
Yes, as you zoom from 55 upward to 250, the lens extends. However, unlike the previous version the front does not extend during focus.
796940
The lens does NOT physically extend longer than its original size. All the zoom functions occur within.
234020
No it does not. Furthermore, after using the camera for only a short time the lens will not extend so the camera is toast. If you Google "Canon lens error" you can see lots of talk on this problem. When I used it to shoot a nephew's wedding I found the long shots on the zoom lens were very soft and disappointing. Medium to close shots were acceptable, but I am still debating the wisdom of spending over $150 to repair the camera when you can buy cheap disposable cameras on eBay for much lens.
2141400
Yes, this is a fixed lens! So you cannot zoom in and out. But it is a beautiful one!! Best I have made portaits with!!!
1450079
No, I don't believe this is an extension tube. I think it's meant to be used in conjunction with a reversing ring. You attach it to the reversed camera lens (a cheap trick for macro photography) so that you are able to keep the aperture wide open. Generally, when you have reversed your lens, there is no longer any electronic connection, therefore you cannot control the aperture so it defaults to the greatest depth of field. This product allows you to bypass this dilemma by allowing you to manually open the aperture up completely to achieve a shallow depth of field, as well as get in lost of light (very useful for macro photography). No, I don't believe this is an extension tube. I think it's meant to be used in conjunction with a reversing ring. You attach it to the reversed camera lens (a cheap trick for macro photography) so that you are able to keep the aperture wide open. Generally, when you have reversed your lens, there is no longer any electronic connection, therefore you cannot control the aperture so it defaults to the greatest depth of field. This product allows you to bypass this dilemma by allowing you to manually open the aperture up completely to achieve a shallow depth of field, as well as get in lost of... » Read More No, I don't believe this is an extension tube. I think it's meant to be used in conjunction with a reversing ring. You attach it to the reversed camera lens (a cheap trick for macro photography) so that you are able to keep the aperture wide open. Generally, when you have reversed your lens, there is no longer any electronic connection, therefore you cannot control the aperture so it defaults to the greatest depth of field. This product allows you to bypass this dilemma by allowing you to manually open the aperture up completely to achieve a shallow depth of field, as well as get in lost of light (very useful for macro photography). « Show Less
957316
It has a fixed lens 42x zoom approx. 1000mm. I really like mine it has a great amount of zoom capability and that was what I was looking for.
2271907
It does not. It is good in quality, but it won't fit most prime zoom lens. Careful!
403397
If by extend from the body you mean does it get physically longer when zooming....? The answer would be yes. With both front and rear lens caps attached, it is approximately 5 and 3/4 inches long at 55mm and 7 and 3/4 inches long at 300mm.
1391990
This lens works well with the zoom on your camera. It gives you a wider field of view no matter your distance from the objective, but you have to consider your distance away from the object before picking a lens to attach this wide angle to. I have been very happy with this lens, especially for the price.
165666
because the lens is a medium telephoto, no, and there is no zoom in or out feature I can find. extension cords are available to place the camera farther away.
537937
Yes there is a small amount of vinetting when the zoom is fully retracted. The lens is not adjustable, but slips over the prexisting zoom lens. With the small amount of tunneling mainly in the corners it still gives you some extra wide angle shot than with just the normal lens. I guess it would be up to you to decide if you want this shadowing of the corners on full wide angle.
465045
Yes the lens extends zoom. As stated there is a newer version that extends the range and comes with Tamron's version of Image Stablization
502327
On my zoom it is visible in the lens at the widest angle (24 mm) even when folded back completely. It is fine even at 30mm and I feel like it is a reasonable compromise. I need it for because I get terrible flare using my variable ND filter if I don't. Since the filter needs to rotate, I can't use a petal design that helps with avoiding blocking wide angle lenses.
766525
There is a manual mode on the camera, as well as auto-focus. The zoom is done manually.