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A.T.

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  1. Thanks. I think I've figured this out. This was a problem with some of the other models as well. It's a little weird but it looks like the camera remembers the last f stop setting of the last Canon lens mounted on the camera and uses that as some kind of registration for the meter system. I tested this with a few of my Canon lenses, 24-70 2.8, 50 1.4. If I have the 50 set to 5.6, then shut down the camera and swap to one of my old Nikon lenses the match needle in LiveView is way off. If I go back to the 50, set it to 1.4 then shut down, remove the lens and go back to the Nikon lens, the meter then works pretty much as expected. So what if I go from a Canon f 4.0 or 2.8 lens back to a Nikon lens you ask? The match needle metering is then messed up. I have to go from the 50 1.4 set to 1.4, shut down and then swap to the Nikon for the meter to be ok. Now I wonder if that is also the case if I'm using a Nikon F 2.0. lens. Do I first have to have a Canon f 2.0 set to f 2.0 when shutting down before going to a Nikon f 2.0 lens? What makes this so freakin' frustrating is that this stuff doesn't happen with my lesser 5D. Aaaaaaaargh! A.T.
  2. Holy Smoke Does no one shoot video with a 1Dx? Am I the only guy who shoots video with a 1Dx? Am I the only guys using Nikon manual focus AiS lenses? Holy crap. Somebody out there please tell me what's up with my match needle metering in LiveView using manual lenses with the 1Dx. The histogram is fine but the needle meter reading is out to lunch. It's only an issue in LiveView. I don't have this problem with my 5D MII. Any ideas would be much appreciated. Cheers A.T.
  3. I should add that I also have a Zeiss 180mm f2.8 with a Canon mount and I have the same issue. So this not an issue of the Fotodiox adapter specifically. This seems to be about using a non EOS lens/manual focus lens on a 1DX. Still scratching my head though.
  4. Hello all wise and knowledgable DSLR shooters. I'm shooting with a Canon 5D II and Canon 1Dx. I've just been using my Canon EOS lenses until recently. I've bought a few older Nikon F mount AiS lenses, 24 f2.0, 35 f1.4, and 50 f1.4, specifically to shoot video with. I've bought basic Fotodiox adapters for the Nikon lenses. Here's my issue. In live view mode with the 1Dx and my Nikon lenses the match needle meter readings are 2 stops lower than when using the meter through the traditional view finder (non live view). If I shoot a test still frame using the viewfinder metering I get a proper exposure. I check the histogram. It's all good. I check the histogram through live view of the same image composition. It's consistent with the histogram of the test still image. But the match needle reads 2 stops lower. So basically the meter needle in live view reads 2 stops lower than the needle in the view finder. This is an issue because I tend to shoot using the match needle metering in live view. To complicate things on occasion the live view image will also appear drastically dark/under exposed. Unfortunately that happens so sporadically that I haven't been able to determine any consistent circumstances. And none of this is an issue with my 5D II. It works perfectly fine. I just picked up the 1Dx form Canon. They checked everything over and made some minor adjustments to the metering. $200 later and I still have the problem. So I tested my lens and adapter on one of their 1Dx loaners and it did the same thing. So this is something specific to 1Dxs and these Fotodiox Adapters and Nikon f mount lenses. My next step will be to try another brand of adapter. I should add that this Fotodiox adapter is the simplest kind, purely mechanical, no electrical connection features, stop down meter. Is there anyone out there also shooting with Nikon manual focus F mount lenses on a 1Dx? I am stumped. Any feedback would be much appreciated. Thanks.
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