Reviews seem to indicate that these AF chips do not work on 5DM3. That aside, is it better to use a AF chip or a split prism focus screen for focus?
1371037
My AF chip failed almost immediately, which caused a communication error which prevented the camera from taking pictures. Even when it worked it didn't help me focus really. (Still need to manually focus, its just a "focus confirm".) Better to get one with NO chip whatever.
2264485
The chip is worth it for the metadata. I've found that it's actually hard to miss focus with this lens. I use the focus scale on the barrel and hardly ever look through the viewfinder to focus. Look up hyperfocal distance for 14mm and use those values. I usually just use the 3 foot mark on the lens barrel unless I'm trying to get something really close to the lens in focus. And by close I mean a foot.
678439
My EOS-1Ds Mark III arrived about two weeks ago around the first of Dec. Certainly there are no focus problems on any lens I've tried, and I have 8 or 10. In fact, one can "tweak" the focus for each lens. I've not seen the need for this rather technical step, however, and should I, then I'll do it professionally with correct charts, lighting and so on. It can be redone, though, so any errors can be corrected.
2156507
I bought the Rokinon HD8M-N 8mm f/3.5 HD Fisheye Lens with Auto Aperture Chip for Nikon DSLR. On my Nikon D5100 and D40 this lens works automatically (auto, P, S and A modes) for everything EXCEPT focus. This lens without the chip is less expensive than the same lens with Auto Aperture Chip. I was happy paying the difference to get the lens with the chip; without the chip it's a manual lens (although on some cameras you may be able to set the aperture on the lens and use the Camera in Automatically in Aperture Preferred mode) YMMV
697450
what is your 5dmarkiii like ? have you solved your focus,moisture and other design/production problems ???? is it lighter and better than the nikons ????? when can i have it and at what price ? arnmax1@ gmx.com/ have you solved
266375
None at all on my M- it is a bit slow in the focus- but when I combined it with a short loupe to act as a viewfinder it became handy. Mine works perfectly except for the focussing time. VRR
1196156
I put it on an E2D - works great. Might be cheaper to buy a new Rigid Industries Halo with 800 lumens, however. Happy trails.
1949878
It will work , but not AF and you should focusses manually and adjust f manually also.
925686
I have D40, it works great, except for AF, since it lack internal motor. Manual focus is a snap, even at 300mm / F5.6. Maybe even faster than AF-S for $350 less... Use Tripod/Monopod when Tele, since no VR. Overall, its an excellent buy.
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.
816800
In the case of the 5DIII, you will need to confirm that your camera is running firmware version 1.2.1 or later in order for auto focus to even try to operate. I've used that teleconverter and lens combination on a 5DII and it works with a few caveats. The auto focus will be much slower than with the bare lens. The auto focus will also require more light with the 2x TC.
1810600
Took this mount into Samy's in Los Angeles and they informed me that chip is more or less decoration. I was having troubles with lens connection on my 7D ("no lens attached" messages) until I took a Samy's employee's advice and snapped off the chip that's on the rim of the adaptor. Worked great after that. It's glued on and does nothing, as far as I can tell. Your Black Magic may accept the lens more easily without the chip.
1638071
From other blogs and such that I have been reading it fully supports auto focusing on the d5000. I am buying it because others have highly recommended it for that purpose to go with my new d5000. I will be sure to let you know after they both arrive and I have time to play with them a bit.
26530
I bought one of these and it works well with the Tamron SP 500mm mirror lens. However there is virtually no functionality. No metering no auto focussing etc. I used aperture priority and experimented ending up setting the exposure compensation to plus 1.5 which gave good results at the Austin Grand Prix.
2060409
I'm looking to do 3 point lighting with my 5dmii will this flash control 2 additional flashes? If so what are the two other flashes to purchase?
512484
This is not an official statement but I've been shooting a lot. And I 99% use single point AF, manually setting focus point according to my subject. I never noticed a left focus or lock up problem.
1780602
Good question... It works perfectly with my 5D3, I didn't even need to microadjust AF. At least, the 50D offers MA, so you can risk it. Such a superfast lens with superflat depth of field wide open needs extremely accurate focusing. The lens itself is outstanding, if best possible bokeh is important for you. Otherwise the much less costly EF 85/1.8 might be the better choice for you, it is much less a risk that you get an extremely expensive lens that you can't really use... A compromise could be the Sigma 85/1.4. This lens is optically good but often said to be critical in terms of reliable AF, too, check e.g. Bryan Carnathan's good review (www.the-digital-picture.com). I did not use the Sigma so far. Good question... It works perfectly with my 5D3, I didn't even need to microadjust AF. At least, the 50D offers MA, so you can risk it. Such a superfast lens with superflat depth of field wide open needs extremely accurate focusing. The lens itself is outstanding, if best possible bokeh is important for you. Otherwise the much less costly EF 85/1.8 might be the better choice for you, it is much less a risk that you get an extremely expensive lens that you can't really use... A compromise could be the Sigma 85/1.4. This lens is optically good but often said to be critical in terms of... » Read More Good question... It works perfectly with my 5D3, I didn't even need to microadjust AF. At least, the 50D offers MA, so you can risk it. Such a superfast lens with superflat depth of field wide open needs extremely accurate focusing. The lens itself is outstanding, if best possible bokeh is important for you. Otherwise the much less costly EF 85/1.8 might be the better choice for you, it is much less a risk that you get an extremely expensive lens that you can't really use... A compromise could be the Sigma 85/1.4. This lens is optically good but often said to be critical in terms of reliable AF, too, check e.g. Bryan Carnathan's good review (www.the-digital-picture.com). I did not use the Sigma so far. « Show Less