Can this lens be focus adjusted directly from a 5D Mark III, or is the USB docking device required?
239955
I shoot Nikon so I cannot answer the question, directly. The Canon does have micro focus adjust so it should be possible on the Canon.
239956
If I understand correctly, you are asking if the lens can be adjusted by using "AF Microadjustment" function from 5DMIII, then the answer is yes you can. You don't need USB docking device from Sigma in order to do that even though the USB docking device might provide more options from Sigma to do Sigma specific lens AF adjustment.
239957
I own a 7D, and could micro adjust focus in camera. No reason you couldn't do the same on 5D3.
866883
This lens with Canon EOS mount will fit Canon 5 D Mark III but there will be no Auto Focus and Auto Exposure Opening (No automatic diaphragm). You have to do everything manually. Canon 5 D Mark III will read correct exposure with this lens.
815337
Neither the camera nor the lens have build-in autofocus. So you can use it but you will have to focus manually
304072
It connects fine on my Canon EOS 6D, which is full-frame. I'm going to assume the 5D MKIII is full-frame as well, so it should probably fit. But if you're looking for a 100-ish mm macro lens I would rather recommend the Canon model, as this Sigma lens has a very octagonal bokeh, while the Canon is more circle-shaped.
818157
With my old 5D MkII, I use the center focus dot 90% of the time. Pre-focus, lock and recompose
543069
You need an MMF1,3 or 3 adapter. Then it IS compatible. It is a SUPER sharp lens.
1186585
The dock allows you to do software updates for the lens . It also allows you to do micro adjustments to focus . Some cameras allow this fine tuning adjustment, but only one adjustment per lens. The dock allows you to adjust at different focal lengths, not just one. If you have no focus issues with the lens and camera , then you probably don't need the lens dock.
366907
I also use this with my 5DII. I just tested it and the camera will refocus before the shot. If you don't want that, you can just turn off auto-focus on the lens.
239162
Yes by turning the focus ring on the lens. I got a deal on this camera. I love it it does so much for the price.
1028374
I don't have it but after the description, there's an ultrasonic autofocus motor inside that lens which can only be used with the latest DSLRs, from the K10D on.
683601
Can't help you specifically on the 3N, but can tell you both focus peaking and shutter release w/o lens works on 5R. Aperture control also works great.
2091871
it doesn't have an internal motor so needs to be mounted on a camera that does.it won't auto focus with the D3xxx and D5xxx cameras.
1547558
You need a Sigma Dock for the lens mount of your camera. In this case it is a Dock with the Canon Lens Mount. The Dock is for specific Sigma lenses, independent of the camera model. The Dock allows you to update the firmware for specific lenses. It does not need to know the camera model.
487508
No compatible, for the D3x00 or D5x00 get the G dx lenses or sigma with IF focus...Internal Focus
1326277
Well u are having several thousand worth camera, and 900$ worth lens.Dock station simply helps u to get the BEST out of it. For me - i have 35mm art and nikon d7100 (soon to be upgraded for FX) in 1-3m everything was perfect, but at close end in misfocused by about 2mm and at infinity i also got a slightly soft (a bit miss focused) shoots. Dock station simply helped me to adjust lens for diamond sharp photos from closes focusing till infinity. well i do know, my body is not perfect and focusing system miss focuses for several lenses. But by sigma - that i can adjust focus for each focusing section separately - i simply love it :) you fix it once (takes about 15mm for 35mm) and in stays for ever :) Well u are having several thousand worth camera, and 900$ worth lens.Dock station simply helps u to get the BEST out of it. For me - i have 35mm art and nikon d7100 (soon to be upgraded for FX) in 1-3m everything was perfect, but at close end in misfocused by about 2mm and at infinity i also got a slightly soft (a bit miss focused) shoots. Dock station simply helped me to adjust lens for diamond sharp photos from closes focusing till infinity. well i do know, my body is not perfect and focusing system miss focuses for several lenses. But by sigma - that i can adjust focus for each... » Read More Well u are having several thousand worth camera, and 900$ worth lens.Dock station simply helps u to get the BEST out of it. For me - i have 35mm art and nikon d7100 (soon to be upgraded for FX) in 1-3m everything was perfect, but at close end in misfocused by about 2mm and at infinity i also got a slightly soft (a bit miss focused) shoots. Dock station simply helped me to adjust lens for diamond sharp photos from closes focusing till infinity. well i do know, my body is not perfect and focusing system miss focuses for several lenses. But by sigma - that i can adjust focus for each focusing section separately - i simply love it :) you fix it once (takes about 15mm for 35mm) and in stays for ever :) « Show Less
1409267
The adapter worked with fd lens to connect with my Canon T3i. But am not sure about the 5d body.
1479310
Compatible with 5D Mark II, but not with 5D mark III. It looks like you may need an Ee-S for the original 5D (that you call Mark I).