I posted a question earlier about recording an image smaller than what is seen in the viewfinder. Discovered that in the Shooting Menu, under "image area" the "Auto DX Crop" was ON.
My question is: How did I switch it ON? I did not make any changes in the Shooting Menu--I did not select Auto DX Crop. The Auto DX crop came on while I was shooting. I must have hit one of the controls/buttons on the camera as I was shooting. Can you tell what I did wrong? (I was using the Nikkor 24-70mm.)
You're right...the camera was set to DX, but the real question is: How did it get set that way?? It has happened twice...I'll be shooting 75 or 100 images just fine, and suddenly I'm in the DX mode without opening the menu options or selecting anything.
Since some options can be selected by using the external dials and buttons, is it possible that I get into the DX mode by fumbling around and hitting the wrong button? I'd really like to avoid this in my next shoot.
Thanks, Brian...with the members' help, I finally understand it, as I wrote in my reply to Hendrik, it seems that when I got the camera in my sweaty hands, I was hitting the fn button and rotating the main dial--all without any awareness. It's a wonder I got any pictures at all.
According to p 95, pressing the Qual button (2nd up on left - where ISO used to be!) and rotating the subcommand dial will change image size. I dimly recall having done that myself and surprising myself with a couple of jpgs in a sea of nefs.
>According to p 95, pressing the Qual button (2nd up on left - >where ISO used to be!) and rotating the subcommand dial will >change image size. I dimly recall having done that myself and >surprising myself with a couple of jpgs in a sea of nefs. > >Best, > >Hendrik
That has nothing to do with the DX crop mode of the camera.
I hate when people ask me what I see myself doing in 5 years...... I don't have 2020 vision!
After you guys set me on the right track, I checked out David Busch's book "Nikon D600." He writes that the fn button has no less than 16 different actions you can assign to it and 5 for the fn + command dial. Far too many for me. Luckily one of the choices is "none" effectively disability the fn. I may be using that choice until I learn to control my fingers.
Hendrik, while the sub command dial changes the file size it doesn't change from FX to DX mode. That has to be changed via the Image Area menu settings or by assigning a button to "Choose Image Area" as Brian pointed out.
Sorry for the confusion earlier. As I mentioned I have come across the odd string of jpgs and this happened to me certainly by the process I suggested. Set to FX, the camera does produce an image covering the whole viewfinder but at a reduced pixel weight - one that could be confused with a DX size in post. But you report having Auto DX Crop set on, but with no memory for having done this. No mystery here, that is Nikon's default setting (default setting are listed on p 312-3). However, along with that setting you would have also had to assign either the preview or the fn button to Choose Image Area. In fact, Nikon had already done this for you - that is the default setting for the fn button. Again, no mystery. So the sequence you must have followed is pressing the fn button (7 o'clock around the lens seen from front) and rotating the main command dial (thumb dial). The trick now would seem to be to learn not to do that.
Hendrik...Thanks again...As I am beginning to understand...the Auto DX Crop was not the problem since that only comes into to play when a DX lens is attached. My problem was unwittingly changing the Image Area from FX to DX. As you pointed out my error was hitting the fn button and then rotating the main control dial. Both actions without intent. (Only a true amateur could accomlish that.)
I just now followed those steps and flipped the Image area from FX to DX and back again. Now that I understand, I won't be making that mistake again.