JD750 Loc: SoCal

I took the plunge and purchased a Nikon D750 from a local camera shop on Saturday. First pic taken on Sat 2014-10-25. :)

Sunday I took an afternoon walk to shoot some pics. Twice the camera shot multiple images, two images in a row, bang bang, with only one shutter button push. Wy did it
shoot two images? I double checked settings and the mode setting was Single, bracket setting was 0. So why did it do that?

Then a while later it switched from single area auto focus to multiple area auto focus on it's own, then switch back again. The camera seemed to be hunting for focus. The single focus square changed to the grid pattern then back again a couple times. The camera was set to AF-C, D21. Was Not set to auto area focus.

This all occurred within the space of about 20 shots. Battery was fully charged. Was using my tried and true "Nifty 50" (Nikkor 50mm f1.8), lens.

I searched the internet and found no reports of this issue. I have never experienced any such behavior from my D7000. So I am definitely going to go back to the store and discuss this with them.

So here is my question: Has anybody here on UHH experienced any similar type of symptoms with a D750 or other camera?

Bob Yankle Loc: Burlington, NC

Gremlins! or; Trons!

brucewells Loc: Central Kentucky

I'll wager it has a soft trigger on it, like my D610. This happens to me occasionally, when I'm trying to be very soft with my release. I have no idea on the switching of focus modes. :-/

steve_stoneblossom Loc: Rhode Island, USA

Mr PC Loc: Austin, TX

You might try back button focus and see if it behaves like you expect it to...

JD750 Loc: SoCal

UPDATE:

Returned the Camera to the Camera store today. Saw the original salesman, and he was very attentive
to my concern. I told him about the problems, double exposures and then a bit later, the myserious changing of focus modes when not commanded. I had power cycled the camera both times but with the focus issue I also remembered
that I had to power cycle the camera to get it to snap out of the anomalous mode. So I mentioned that. The salesman said I could exchange it with another if I wanted. I said wanted to do that.

I gave him the paperwork and then he became somewhat distressed that I had written the purchase date and location
on the warranty receipt. Said it was a problem. Then he went and talked to his manager. He came back tried to
make the camera malfunction. Naturally it wouldn’t repeat in the store. (I had said it hadn't repeated).

He said sometimes there is grease or stuff on new camera terminals and once you mount the lens and remove it then it’s ok. (It sounds good but I’m not really buying that.) Then he asked if I would be willing to keep it 30 days and see if it repeats. I said I’d rather not.

Somewhere along the way he asked if I had used the kit lens I said no I used my 50mm Nikkor lens which has worked flawlessly on my D7000. I had the lens with me and he had used it to try to make the camera malfunction.

So then the manager came over, she said the writing on the warranty receipts was a big problem. I told her I always
do that and nobody had ever told me that I should not. She said something about they couldn’t simply exchange
it now because it had obviously been used and Nikon required the camera to be sent back to Nikon once it was used, they were not allowed to exchange with customers. Now they would have to send it back and get it returned as a factory refurbished, and that would cost them $. BUT they would exchange it and take the loss.

So she busted my balls for writing on the warranty card but then went ahead and exchanged it for another camera with a stern warning that I NOT write on the warranty, or log on to the Nikon site and register it, for 30 days.

So they gave me a new box then they took the extra step of taking new sealed paperwork from the new box and them put it in my old box and put my paperwork in the new box. Not that I care but ??? It brings up questions.

So lets see If I have this straight, I’m not supposed to register it or deface the warranty info within 30 days just in case
it has problems so the store can can exchange it? I’m not sure I have my head around that. Here I thought all along you had to have registered it for the store to honor the warranty. I guess you learn something new every day.

One thing for sure, all of this has significantly reduced my joy of buying a new camera. Kinda like a new car that gets
dented right after you buy it.

I haven’t tried the "new" one yet. I don’t really want to deal with it tonight if it has some other problem.

winterrose Loc: Kyneton, Victoria, Australia

My reaction is that there is a very much greater chance that the "problems" that you experienced that one time only were brought about by your lack of knowledge of what is a very fine camera rather than it being any kind of fault. May I suggest that most people have at least a couple of "what's it doing now" moments when going through the process of discovering the idiosyncrasies of their new acquisition.

jerryc41 Loc: Catskill Mts of NY

Ditto

lalezo Loc: Gainesville, FL

I would consider checking the shutter release - is it in single shot or continuous? Enjoy your D750.

Lloyd

SirLan Loc: London UK

Are you sure it's not taking one JPeg and one Raw picture? You can check in settings :)

tomface Loc: California

The shutter release is very touchy on the 750. I thought the same thing when I got mine, every once and a while it would double. I paid attention and realized that the button was re-setting very quickly, and if my finger was still on the button it would release again. In my case it was due to my technique and once I modified my technique the problem is no longer. I like the feel of the action in the shutter release, it is very precise.

Capt Gary Loc: Virginia

Enjoy your 750....great camera!

OddJobber Loc: Portland, OR

I may be confused on this but are you saying you now have the second camera with it's new box but the paperwork from the first camera. Whether I understand or not, the point is that the serial numbers on the camera, box, and warranty card all need to match.

My guess is that the store has a 30-day return policy that includes all the original (not altered) "stuff". Their only other option, without taking a loss, would be to have you send the camera to Nikon for warranty repair.

jerryc41 Loc: Catskill Mts of NY

I'm surprised it came with that warranty paper. Nikon has done away with them. You just register online.

http://support.nikonusa.com/app/answers/detail/a_id/16192/~/nikon-warranty-and-product-registration

CraigFair Loc: Santa Maria, CA.

I had the same problem, solution and outcome as Tom with my new D5300.
Craig