lbjed Loc: New York

Recently bought a Nikon D750 through a dealer, brand new when Nikon was having there recent sale. Had it less than a month when the focus point disappeared. The dealer sent it to Nikon and they checked it and found nothing wrong. "Your equipment has been fully tested and is operating within factory specifications". Also stated to check my lenses. Got it back and it worked fine as they stated. Two weeks later, same problem. No focus point so back to the store.

Checked all my lenses and they all work perfectly fine on my D7200. Did a reset of the camera. Firmware is up to date.

My question is has anyone else experienced such a problem.

Cwilson341 Loc: Central Florida

On my Nikon (different model) you can turn off the focus point display when you are using manual focus. Not every setting is reset when you do a factory reset. I doubt this setting is your issue but it is the only thing that comes to mind other than a malfunction.

lbjed Loc: New York

Thanks for the response. Focus point display is set to "On".

Bison Bud

Just guessing, but maybe it's an electrical contact issue in the mount. It's not uncommon for a mechanical contact to have some sort of film on it that makes the connection intermittent, especially when new. I'd try cleaning the contacts and see if that helps, it's worth a shot. Good luck and good shooting to all.

lbjed Loc: New York

Thanks. Any suggestions for cleaning the contacts? You would think Nikon would have done something like that. But then again, they found the camera to be within specifications.

Bison Bud

If contacts are accessible, a pencil eraser can be an effective contact cleaner, just make sure you do it with the mount facing downward to prevent any debris from falling into the camera body. There are also solvents, but I'd be hesitant to go that route and wouldn't know what to recommend. Good luck.

Haydon

I wouldn't recommend a pencil eraser cleaning the sensitive contact due to the highly abrasive properties. Use a microfiber cloth with alcohol. I personally would try to talk to a live person in Nikon repair explaining the re occurrence. Solving issues sometimes takes verbal communication instead of text.

lbjed Loc: New York

Thanks for the info. Before I touch anything I will speak with the dealer who sold me the camera. Nikon stated they cleaned the camera after checking it so it may not be the contacts. The camera does autofocus but without a focus point.

Skiextreme2 Loc: Northwest MA

Have you tried to relocate the focus point (you didn't say if you were using a single or group focus point)? I have relocated the focus point many times by handling the camera and probably touching the part that relocates the focus point. Quite frustrating when you have a good action shot and realize the focus point is way off to the side, top or bottom of the focus screen.

gvarner Loc: Central Oregon Coast

This is an excellent answer.

Rich1939 Loc: Pike County Penna.

When this has been resolved, p;ease let us know what the problem was. Thanks

James R. Kyle Loc: Saint Louis, Missouri (A Suburb of Ferguson)

I clean the contacts on all my digital cameras with a Q-Tip and Grain Alcohol (Everclear) as there are NO other trace elements in it - it IS simply just Alcohol. Any and ALL electrical contact points of ANYTHING I do this too.

Do NOT make use of any erasers. They have abrasives that WILL remove some, if not all given time, the gold plating on the brass base material. The gold is there as it will not tarnish - as with brass it will form a light coat of oxidation (tarnish) and impede a good electrical contact, so will silver. (Just look at your GOOD eating utensils from time to time.)

Every six months I clean my cameras, everything I can reach - And the sensor as well. I travel a LOT - and most of the places require I travel over dusty roads. Even if you are one of those "city folk" - cleaning your camera(s) every so often is a good procedure. And after the first three or four times, it should be almost automatic - you do not even have to think of what to do.

Cleaning is one thing and lubrication is another. Modern digital cameras do NOT require any oiling - anywhere. Though some of the other things, like the tripods, ball-heads, and set screws might need attention as well. I had a lens mount come unscrewed because of rough roads once, and it was unusable. I carefully placed it back in the lens case and later on at the motel, got out my little screwdrivers and replaced the screws that had fallen out to the bottom of the lens case. I did make use of some clear nail polish on the threads of the screws, and a very VERY little goes a Long way. This application will retain the screws - but use very little. I used a toothpick to apply the nail polish, about 1/4 of a drop, if that, more like a light "smear" on the threads.

Knowing good maintenance of all your photographic equipment is a good thing - and there are Many MANY VIDs on YouTube that will show you just how to do this. All you have to do is Want To.

-0-

lbjed Loc: New York

Dealer exchanged camera for a new one. Guess we will never know the cause.

Rich1939 Loc: Pike County Penna.

Thank you ! We usually don't find out the final disposition

Bison Bud

Good for you on the exchange for a new one! Intermittent problems can be very difficult and frustrating and you deserve a new camera rather than have to deal with this ongoing issue, especially after sending it in for repair and having the same issue. It would have been nice to know what the actual problem was, but your better off in the long run and that's a good thing. Oh by the way, a couple light wipes with a pencil eraser would not come anywhere near removing the gold plating on your contacts. Perhaps if done repeatedly it could be a problem, but I spent the last 45 years working with delicate electronics and I still prefer that method to any kind of solvent for cleaning contacts. However, the pure grain alchohol would be the best choice if there were no other options and a micro-fiber cloth isn't going to hurt anything either. Good luck and good shooting to all.