Tonight I just read about a problem that a MaxPreps photographer recently encountered. I quote: "I was shooting a couple of soccer matches tonight with my D4 on the 400 mm and when I needed to change lenses at the end for the awards ceremony, I couldn't dismount the lens. Anybody had this problem and been able to fix it without sending it in?"
I have the same lens and camera combination and sure would like to hear from anyone else who could have encountered this problem. Thanks
Sat 14-Sep-13 10:28 AM | edited Sat 14-Sep-13 10:30 AM by Lipscombe
Never noticed anything remotely like this with D80 thru to D800. But with my D4, I have caught myself putting the lens on crooked. I suspect I could have had issues if I hadn't noticed and actually locked the lens in place.
Now I will make sure when changing lenses on the D4 to stop, watch, and take my time as there is apparently some sort of issue around.
But, no, I haven't suffered from a stuck lens. I just suspect the lens may be mounted on crooked, and it seems easier to put a lens on crooked on my D4 than my previous models.
No problem here with my D4 and 400/2.8. Just used them both today. Can't imagine why it would not dismount, unless the mount on the body or lens was loose in the first place. The Nikon mount is pretty fool proof. Have used Nikons over the years since the Nikon F, along with Leica M & R, and for a short time Canon. The only mount that ever gave me trouble is the Canon mount.
I had this problem only in my case it was with a D3S and 105 f2.8. When I had place the lens on the camera, I must have had it cocked slightly, which caused it to jam. This while shooting a wedding. I was able to remove the lens after about 5 minutes. No damage to either the camera or lens mount.
>I had this problem only in my case it was with a D3S and 105 >f2.8. >When I had place the lens on the camera, I must have had it >cocked slightly, which caused it to jam. This while shooting a >wedding. I was able to remove the lens after about 5 minutes. >No damage to either the camera or lens mount. > >Barry >www.threepairsphoto.com
So if one mounts a lens improperly and then forces it on, is this the issue the Op is talking about?
Historically there have been two, very sturdy, stainless steel release pins on the Nikon F-Mount that are engaged and disengaged whenever changing lenses. One pin at approx 3 o'clock is the actual lens locking pin, and the other pin at approx 7 o'clock is the manual focus lens motor pin. When the lens release button is depressed, both these pins are withdrawn. With the large mass lenses used on the current batch of low mass, lightweight, DSLR's, it is not surprising that either of these pins could get jammed, if either the cam body F-mount, or the lens F-mount, are slightly misaligned during the frenetic process of switching lenses at athletic events? One could also actually misalign the lens while changing massive lenses, and lock the lens in misaligned - which can and does happen as well. This is likely what the forums are buzzing with at the moment. But all camera manufacturers' lens mounts are susceptible to this same user-error. In any case, the more you change lenses on your camera bodies, the better you will get at precise alignment. And always check your lens-release button to make sure it is functioning properly (if you have the time) before swapping lenses that weigh far, far more than the camera body. Remember to first mount your heavy lens on the monopod or tripod, and then to mount the lighter-weight camera body to the lens
I don't understand how the locking pins would engage if the lens wasn't mounted correctly. I mounted my Nikon 300 F2.8 VRII incorrectly on my D800e, and all that happened was that it refused to lock. It then just twisted off ok.
There are numerous ways a cam body can be misaligned and locked into an F-Mount. As I mentioned, the most likely problem is that a massive lens is misaligned while mounting a lighter weight cam body - and the photog's ego blames the camera and lens as opposed to operator error. I have used the F5 body which weighs in at 42.7 oz and the D3x body which weighs in at 43 oz and the D4 which is a lightweight 41.6 oz and the D800 which is almost too light at 31.7 oz. Your 300mm lens weighs nearly 6.5 pounds compared to your D800e at less than 2 lbs. When you get a chance to use to the Nikon 400m lens that weighs over 10 lbs, you will see how easy it is to jam the lens onto the cam body, if you are not careful. good luck
I'be used all sorts of Nikon DSLRs with many heavy lenses, including a D80 mounded on a Sigmonster on several occasions. I have never had a lens jam in the mount. Of course I've never been careless enough to pick up or hold such a combo by the camera body.
The mount is plenty strong enough to support the weight of the camera (even a D4) from the lens, but doing it the other way around with a heavy lens is asking for trouble.
I'm a light user of the 400/2.8 and the D4. (I rent the lens a time or two per month...which is ALMOST enough that I should buy it.)
I've gone back and forth among the 400/2.8 the 300/2.8 and the 200/2 lenses many times over the course of a given prep soccer, American football, or Lacrosse contest, and never had a problem dismounting or mounting the lens.
So i'll be interested in following this discussion.
I now have the Nikon 200-400 f4 and still have no difficulty mounting the lens in a hurry on either the D800e or D4. First time of using, I managed to try to attach it incorrectly on the D4, too much of a rush to grab a shot, it still didn't jam even after twisting it round. Only realised it was on incorrectly when it wouldn't lock off. After Bournemouth airshow today where the lens went between the D800e(for static Navy shots) and the D4 for action, I never tried to misalign it once(big sigh of relief) What I'm saying is, I've managed to misalign two lenses and haven't suffered a jam. Perhaps I've been lucky, or someone has been massively brutal! By the way, I'm 6'4", 18 stone and ex Army, so I'm no shrinking violet when it comes to brute force!
It seems to be an isolated problem, maybe to much haste or in too much of a hurry to attach a lens properly. I have been shooting Nikon for decades and never have had a problem. On longer lenses I always mount the camera to the lens and not the lens to the camera. Another words the lens is static for longer lenses and the camera is twisted onto the lens and not forced!!!!
Sat 14-Sep-13 02:24 PM | edited Sat 14-Sep-13 02:25 PM by Zareeba
So far I haven't had any problems with my D4, but a few months ago I did manage to put my 24-70mm lens on my D800 crooked - with the result that the lens wouldn't focus. No damage done though (first thing I did was get it checked out) and I've had no lens issue since. I think the potential to put lenses on crooked exists with any camera - now I make absolutely sure a lens is straight before fitting to any of my cameras. In fact I try not to change lenses unless absolutely necessary - one of the advantages of having several bodies, but I appreciate that not everyone can afford multiple camera bodies! (Sometimes I wish I had a new head.., never mind another body )
D4, D800, D600
It ain't so much the things we don't know that get us in trouble. It's the things we know that just ain't so.
Why is this thus? What is the reason of this thusness?