dshombert

<p>I haven't tried this, but I've read that a good test for decentering is a shot of some foliage - trees with a lot of leaves all pretty much the same size. Fill the frame with them. If it's decentered, it'll be fairly obvious. As I say, I haven't tried it, but it sort of makes sense. I guess.</p>

<p>Thanks to all. It may be that it's normal, but I like this lens too much to risk having it fail while I'm using it. I wish I could compare it with a new one, but I'm well over a hundred miles from a camera store. It's on its way to Nikon. I'll post the results when it comes back.</p>

<p>Thanks, guys. That does it, I'm sending it in.</p>

<p>I have the AF-S 70-200mm/f4 lens and like it very much. Focuses quickly, quietly, and accurately at all focal lengths. Its performance seems fine. However, I notice a slight rattle if I hold the lens with both hands and shake it gently. I wouldn't call it loud, just noticeable. It sounds like it's coming from the front end of the lens, just inside. Can't see anything loose in there, and as I said it seems to work fine. I emailed Nikon about this and they couldn't give a definitive answer. I'm stewing over whether to send it in to have them check it. Any opinions or similar experiences here? Thanks.</p>

<p><strong><em>I wonder what Nikon's mirrorless plan is.</em></strong><br> Or if they have one.</p>

<p>A couple weeks ago, I posted about my D750 locking up and refusing to be turned off, wondering if anyone else has had the same thing happen. Some responded (here, and on Nikonians) that they had. One person suggested that I send it to Nikon for evaluation, since it's under warranty. I took that advice and got the camera back today. It was there for about ten days (seems pretty quick to this former Pentax user); the paperwork is a little hard to decipher, but it appears they replaced the "memory compression", whatever that is. They also replaced the rubber grip and the "rewind side" rubber - ?? - I don't recall anything being wrong with those, but I won't argue. They also checked the shutter, the metering, and the AE operation. It works fine, of course. I think the moral here is this: if you have a camera under warranty and it acts up, send it in. It seems they WON'T just send it back saying they couldn't find anything wrong with it.</p>

<p>The warranty is good until next January, and there's a one-year extended warranty offered by my credit card company. So I think I'll just continue using it, wait and see if it happens again. If it does, then I'll send it back to Nikon. Thanks to all who helped.</p>

<p>Yes, I checked on that link when I got the camera (and I double-checked just now). The camera's been fine since that one occurrence. Realistically, I'd expect Nikon to say they won't do anything to it if they can't reproduce the problem, but Javier and Brian apparently had a different experience. Is it worth asking Nikon about it before sending it in?</p>

<p>I was using my D750 in Live View over a period of three days, in a workshop. I took about 400 shots. At the end of the last day, I shot a series of about six and the mirror wouldn't come back up after the last shot. I tried to turn the camera off and it would not go off, i.e., even though the switch was in the OFF position, the top LCD still displayed the info. Then I took the battery out and reinstalled it. That got me an error message (ERR). Next I took the battery out and left it out for several minutes, then reinstalled it - same result. At that point, the workshop leader came along and tried his hand at it. We're not sure what he did, but it started working again and has worked normally ever since.</p> <p>Anyone else had an experience like this? Should I send it to Nikon? It's still under warranty. Thanks in advance.</p>

<p>Thanks, Shun.</p>

<p>I know that the D750 (which I don't have - yet) can be used in crop mode when a DX lens is mounted. Does the camera recognize that it's a DX lens even if it's not a Nikon, e.g., a Tamron? Thanks.</p>

<p>I'll echo what the others have said about buying used from B&H - not a problem - but I'll also add that I've used Tamron lenses for Pentax and, more recently, for Nikon and have been totally satisfied with the quality and dependability as well as their customer service. Not to mention the prices relative to Nikon's.</p>

<p>These were the exact symptoms when my 16-50 (and my 50-135) suffered SDM failure several years ago. Sad to say, that's what it sounds like to me. Once they were repaired, I never had any problems with either lens again. There were many reports of this failure in nearly all SDM lenses a few years back, here and on Pentax Forums. I am not sure about this, but I think it was due to an early design or component flaw that was subsequently corrected. Thus, once it's repaired, you'll probably get many years of use without a problem.</p>

<p>Thanks to all of you. This was all pretty interesting - I'd heard of the Kiev cameras but never knew anything about them. The links that Gordon provided were very helpful. It's clear that this is what the camera is; I would not spend anywhere near that kind of money for it, as it'd just be a collector piece to me. But I enjoyed learning more about this bit of camera lore.</p>

<p>A local pawnshop has a rangefinder that is similar in size and weight to the ones I've seen from the 1940s - 1950s era. No name, but the lens is a Zeiss lens. Across the upper part of the back is stamped/engraved "USSR occupied Germany". The shutter seems to work, as does the focus. I was not able to figure out how to get the back open.<br> The pawnshop owner claims it's a Contax, and he's convinced that the engraving is legitimate and that this is some rare collector's piece. He wants $425 for it. I've never seen anything like this, and I'm curious about it even though I would not buy it at that price. I guess he could be right, it looks and feels like Contax quality. I'm kind of wondering why the engraving, if it's legitimate, is in English.<br> Anyone ever seen anything like this?</p>