dmeyer Loc: Marion, NC

Once in a couple hundred shutter clicks, a couple of frames will be blown out white and then the next shot will be 'hung up', at which point I can turn the camera off and back on and resume shooting as usual. It isn't fatal, just annoying. None the less, thinking it may be the shutter hanging up, I sent it off to a repair company to have a look. Just like with a vehicle, it doesn't do anything wrong when it gets to the doctor. But the company asked a curious (to me) question--what lens does it do this with? As I look back, I think it has always been with the same one...the 24-85mm. And, it only happens when using OVF, not in Live View.

Has anyone else experienced this occurrence? Was it ever determined whether it was the camera or the lens? And what would be the indicators that the fault lies with one or the other? (This does not appear to be the warranty issue where there is shading over a portion of the image.)

Not about to ditch the camera (my well loved D750), but I might ditch the lens if it is the culprit. Any way to test it out, short of standing around clicking the shutter a few hundred times waiting for it to happen again?

larryepage Loc: North Texas area

See if the aperture lever on the lens freely moves and closes the aperture down. One possibility is gummed up lubricant on the iris blades causing everything to stick in the open position. I have had this happen to a couple of older lenses by other manufacturers. If that's what's happening, a clean and lube of the lens should fix the problem.

rgrenaderphoto Loc: Hollywood, CA

Have you tried cleaning the contacts on the lens body? There's lots of YouTube videos that address the safe way to clean these.

CHG_CANON Loc: the Windy City

The issue is likely the contacts and / or the lens, not the camera. If it happens with just one lens, you'd likely get the same issue at the 'doctor', the problem can't be recreated...

User ID

Barking up the correct tree.

In LV most SLRs bypass the auto iris.

Hawgsters always blather about cleaning the contacts but those are self cleaning. Typical UHH. Nexxt bad idea nentioned may well be "full reset", another bozo fave.

The lens needs a CLA. You wont necessarily see any oil on the blades.

druthven

This is a distinct possibility especially if the lens has been over heated such as being left in a hot car. The lubricant runs and gets on the blades and when it cools causes them to stick.

fantom Loc: Colorado

I think you have a typo. Claddagh Ring Adjustment would be CRA. But that's ok and we get it, nobody is perfect.

Architect1776 Loc: In my mind

So far this has not happened to me.
Hanging up seems like a mirror and shutter co-ordination issue. When the blown out white does the shutter sound delayed?
This doesn't sound like a lens problem as the total wash out even at full open aperture is less likely than a delayed shutter.
But the randomness again doesn't sound like a lens problem but a mirror and or shutter problem.

JohnSwanda Loc: San Francisco

I assume that is an attempt at a joke. If not, it's "Clean, Lube and Adjust".

BebuLamar

Yeah the diaphragm perhaps slow so it still works but sticks some of the time. By the way this is a full mechanical problem and not and electronic one so the contacts have nothing to do with this. (of course unless the OP has E type lens).

User ID

Well, *almost* nobody .....

JD750 Loc: SoCal

Answer to the Title question: No.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

Your quote "hung up". Exactly what does that mean. Camera would not take an image? Shutter stopped working? Camera froze up? Mirror froze? What?

CamB Loc: Juneau, Alaska

“Self cleaning contacts?” What does this even mean and how does it work? I have nine Nikon lenses. None of them have self cleaning contacts. I can’t even picture this. Mine get dirty. Camera contacts too. I clean them about once a year.

imagemeister Loc: mid east Florida