Why is this lens NOT compatible with full frame cameras? They spec the focal length in terms of full frame zoom numbers...I don't get it. Help?
185445
Short answer - physically it won't fit because the back end sticks out and will hit the mirror resulting in a broken lens. Long answer - The reason the focal length is given as such is because this lens is ACTUALLY 17-55mm. The fact is that part of the image gets chopped off by the smaller sensor. Imagine a rectangle with a large circle on top of it. The circle represents the projected image and the rectangle is the sensor. Some of the projected image gets chopped or "cropped" by 1.6x. So now that 17mm angle becomes narrower by exactly 1.6 = 27mm. So it started off as 17mm but by the time you get to see the final image it is more like 27mm. Quite simply if you could glue this lens onto a full frame camera somehow (which I DO NOT RECOMMEND) then it would actually be a 17-55mm lens. If Canon were to write the cropped value it might confuse people when they mount a non EF-S lens. You would have 2 naming conventions and things could get messy fast. It's easier just to remember that you are using a crop sensor and multiply everything by 1.6.
185446
B&H; Photo explains the difference between EF and EF-C lens in this review of the Lens: http://www.photozone.de/Reviews/425-canon_1755_28is_50d
185447
It's a completely different mount which is only for the non-full frame cameras. EF-S vs EF.
2022546
It's a really great lens for the price and works well with the 7D and other crop sensor canon bodies. You can even put it on a Full Frame body at 16mm and it should vignette too much. The one I have is tack sharp and does do video quite well. At 11mm though it tends to distort the people on the very edges of the frame. Hope this helps.
538392
This lens will work on both full-frame and crop cameras. I have personally used it on the 7D and the 5D Mark III. Canon doesn't list it as either EF or EF-S, it's simply listed as "E" (as in MP-E) :-)
358177
completely different lenses, especially for full frame. Why do you have a 50 f/1.8 on a 6D? that's almost a toy lens on a near professional camera. Although I don't have a full frame camera, if I did, I'd get the 24-70 L Zoom. If price is the issue, get the 24 2.8 IS for outdoor, landscape work and a 50 mm 1.4 for indoors, portraits, everyday use. Another nice lens is the 35 mm f/2 IS. bit wider, very sharp, with IS.
462294
Are you sure it says that? I've looked over the ad description & I don't see anywhere that it's a zoom lens. The only place I see the word "zoom" was in a customer's question comparing it to their zoom lens. It's definitely not a zoom. It's a single 30mm focal length prime lens that I've enjoyed.
1494448
the 28-300 is a full frame lens. It's bigger, heavier and more expensive. Most reviews indicate that the picture quality is almost the same. Why would you want it unless you have a full frame camera?
30437
the zoom rating may be because there is a small cmos sensor on this Camera, if it were a full frame sensor (as opposed to the small 'crop sensor' the lenses would have a true mm focal length, but because this, and most Digital SLR's under $2,000 use a 'crop sensor' so the camera body will automatically extend the focal length slightly from the lenses focal length.
920085
Hi John, I love this lens, FOR WHAT I DO. As Nikon Brad says, it ain't subtle on the street and it's narrow for landscape. Your reply to him, though, kind of changes the emphasis of what you are looking for because you say your aim is to go for the D810 in time. Would you not be better at this stage to go for lenses compatible with that full frame body when you can afford it???????? If you use this Sigma lens on a D810 you will force the body to downgrade, effectively, to a smaller format the same as you are using now, thereby defeating the purpose of your upgraded body. Sorry to raise more questions than answers but you could spend a fortune on glass that then will not work to best advantage with your dream body so you will have to change your lenses as well (and the crop sensor lenses don't hold their second hand value like the full frame ones do, generally). Coming back to what you like to photograph, on the street big is not necessarily beautiful where kit is concerned. A D810 body with almost any of the quality shorter zooms on it, like the Nikon f2.8, is a pretty big piece of kit when you compare it to your 7100 plus a suitable DX format lens. This is one of the very reasons the 7100 body sells so well! Great quality and not too big/heavy, At the opposite end of the focal length range the crop sensor works well for you too as it effectively increases the zoom effect of any lens you marry it with, turning a 70-200 into a 110-300 approximately. Approximately! You can do the math more precisely if you like!And your F2.8 is still an f2.8. And your body is using the centre of the lens which is likely the best part. Win, win. Best of all - - - - no loan for a new body!!! Good luck, JohnEddy. I wish you well with your picture making. Will
2078419
i'm sorry to tell you that this is not compatible with the full frame sensor. you can use it in dx mode, otherwise the image will leave a lot of black border on the image. someone of the lens user, cut off (very difficult operation) the petal hood (that is fixed) to enlarge the covered area on the full frame sensor, and obtain an image area above 180 degrees
1498102
I am a Nikon user. So I can only give my experiences as a Nikon full frame user. maybe this can help https://www.youtube.com/watch?v=fe1VkIzi6OI .
2246942
Well, I don't shoot w/ Canon, but i just tried it using a 70-300 Nikon f/4.5-5.6 VR, AF-S lens... since you asked. But why? Seriously,*I'm not well versed in things Canon*, but at least in the world Nikon, the 1.4x TC on a f/5.6 lens takes it to f/8 (you lose 1 stop, f/5.6 to f/8) w/ the 1.4XTC where it attempts to AF- but in less than optimal light, it just hunts. Usually, I wouldn't try a 1.4 X TC like this one you ask about- with a lens w/ a smaller max. aperture than f/4 (where takes it to f/5.6)... Also, depending on camera using, some won't AF beyond f/5.6 or limit to central AF focal point at f/8. hope this helps. Hopefully a Canon guru can answer this in Canonesse for you... good luck! Well, I don't shoot w/ Canon, but i just tried it using a 70-300 Nikon f/4.5-5.6 VR, AF-S lens... since you asked. But why? Seriously,*I'm not well versed in things Canon*, but at least in the world Nikon, the 1.4x TC on a f/5.6 lens takes it to f/8 (you lose 1 stop, f/5.6 to f/8) w/ the 1.4XTC where it attempts to AF- but in less than optimal light, it just hunts. Usually, I wouldn't try a 1.4 X TC like this one you ask about- with a lens w/ a smaller max. aperture than f/4 (where takes it to f/5.6)... Also, depending on camera using, some won't AF beyond f/5.6 or limit to central AF... » Read More Well, I don't shoot w/ Canon, but i just tried it using a 70-300 Nikon f/4.5-5.6 VR, AF-S lens... since you asked. But why? Seriously,*I'm not well versed in things Canon*, but at least in the world Nikon, the 1.4x TC on a f/5.6 lens takes it to f/8 (you lose 1 stop, f/5.6 to f/8) w/ the 1.4XTC where it attempts to AF- but in less than optimal light, it just hunts. Usually, I wouldn't try a 1.4 X TC like this one you ask about- with a lens w/ a smaller max. aperture than f/4 (where takes it to f/5.6)... Also, depending on camera using, some won't AF beyond f/5.6 or limit to central AF focal point at f/8. hope this helps. Hopefully a Canon guru can answer this in Canonesse for you... good luck! « Show Less
467110
Li,What does a longer lens excel at shooting? I'm almost a complete neophyte, and can't google up the answer to this one.
1272578
I just love how people keep mentioning conversion factor of lenses for full-frame vs crop sensor to beginners, when most beginners have probably never used a full-frame camera.
925167
it is a full frame lens. i ordered mine with a nikon mount i beleave it also comes in a sony mount. see what mount your camera has & go to sigma web site & see if it fits. if not check on a adapter. i got one for my sony fs700 vidro camera. it is a good lens, i love mine. note: the auto functions do not work with the adapter i have but if you order the lens with a sony mount & get the right adapter i think they will.
1804577
This is a very large lens. If you don't expect o go to full frame someday, look at the 1680 CZ. I HAVE OWNED THAT ONE AND it is ideal for the cropped sensor cameras.
2064709
NO!! This is for APS-C cropped sensor Canon cameras ONLY. Canon is not like the Nikon which can use this lens on a full frame camera. Canon cannot! It will damage your camera body, so don't do it!!
1705277
Not having a 5d, I can't answer 100%. What I have seen though in this lens and what I have seen in the 5d I would think they would work well together. I love the lens and can only imagine how awesome it would be on a full frame camera!