P mode on Nikon Z Cameras (Page 2): That probably figures in to why they don’t allow for it.

IDguy Loc: Idaho

BebuLamar wrote:

Does it still switch to P* but doesn't change the combination of the shutter speed and aperture? If so I know why. There are many lighting condition when P and auto ISO would cause that to happen especially in low light condition. The aperture is already at maximum. The shutter speed when auto ISO is one isn't going to be lower than 1/focal length. When auto ISO is off it can be as long as 30 seconds. And thus in many conditions neither the shutter speed nor aperture would change.

That probably figures in to why they don’t allow for it.

BebuLamar

IDguy wrote:

One can do what one wants with algorithms. For example you can program it to minimize ISO while maintaining exposure outside the set ISO base…while maintaining shutter speed or aperture. But they apparently chose to just ignore it so P* doesn’t work if auto ISO is selected. That is OK but deserves a footnote.

I believe it does work. Does it show P*? There is one parameter the camera considers when you turn on auto ISO is that it will keep the shutter speed at or above 1/focal length. If the lighting condition is low so that at the auto ISO low limit the camera would need max aperture and that shutter speed then the combination won't shift.

IDguy Loc: Idaho

BebuLamar wrote:

I believe it does work. Does it show P*? There is one parameter the camera considers when you turn on auto ISO is that it will keep the shutter speed at or above 1/focal length. If the lighting condition is low so that at the auto ISO low limit the camera would need max aperture and that shutter speed then the combination won't shift.

Yes, it shows P* with auto ISO. But the settings it offers aren’t usable and the thumb wheel adjustment doesn’t work.

BebuLamar

IDguy wrote:

Yes, it shows P* with auto ISO. But the settings it offers aren’t usable and the thumb wheel adjustment doesn’t work.

Which lens did you have on? I think you're it shows max aperture and a shutter speed equals to the focal length of your lens. Bring the camera to some place brighter and it would work.
In auto ISO the camera priority is to have the lowest ISO so it would slow the shutter speed and open up the aperture before increasing the ISO. Also when auto ISO is on the shutter speed doesn't go down very slow. It limits to the 1/focal length speed.

IDguy Loc: Idaho

BebuLamar wrote:

Which lens did you have on? I think you're it shows max aperture and a shutter speed equals to the focal length of your lens. Bring the camera to some place brighter and it would work.
In auto ISO the camera priority is to have the lowest ISO so it would slow the shutter speed and open up the aperture before increasing the ISO. Also when auto ISO is on the shutter speed doesn't go down very slow. It limits to the 1/focal length speed.

Actually tested on both Z7II a d Z50. Both stick at min fstop w auto ISO.

BebuLamar

IDguy wrote:

Actually tested on both Z7II a d Z50. Both stick at min fstop w auto ISO.

bring the camera to brighter place.

IDguy Loc: Idaho

BebuLamar wrote:

bring the camera to brighter place.

Both tested in various lights.

BebuLamar

IDguy wrote:

Both tested in various lights.

I am sure you didn't bring it to a place that is bright enough.

rgrenaderphoto Loc: Hollywood, CA

IDguy wrote:

I get the P*. The problem is nothing else happens when I rotate the thumbwheel. It is supposed to go through combinations of fstop and shutter speed that satisfy the meter. Tried different metering choices too. Nothing.

Doesn’t “P” mode imply that the camera is making all the decisions for you?

CHG_CANON Loc: the Windy City

Doesn't P denote the (P)rofessional configuration for superior results from the camera?

rehess Loc: South Bend, Indiana, USA

rgrenaderphoto wrote:

Doesn’t “P” mode imply that the camera is making all the decisions for you?

I didn’t know ‘P’ mode aims the camera and decides when to press the shutter button.

Grahame Loc: Fiji

rgrenaderphoto wrote:

Doesn’t “P” mode imply that the camera is making all the decisions for you?

It's making the decision on 'exposure' for you but it can also allow you to alter the chosen A and S values. E.g. if the camera suggests 1/60 at f/8 you can rotate the control and change that to 1/30 at f/16.

IDguy Loc: Idaho

Grahame wrote:

It's making the decision on 'exposure' for you but it can also allow you to alter the chosen A and S values. E.g. if the camera suggests 1/60 at f/8 you can rotate the control and change that to 1/30 at f/16.

Yes and it allows to change all other settings.

BebuLamar

Grahame wrote:

It's making the decision on 'exposure' for you but it can also allow you to alter the chosen A and S values. E.g. if the camera suggests 1/60 at f/8 you can rotate the control and change that to 1/30 at f/16.

No unless you use EC. Because 1/60 at f/8 isn't equivalent to 1/30 at f/16.

tcthome Loc: NJ

IDguy wrote:

Got it. Sorta.

It appears auto ISO causes the problem. I had been using it setting up my U settings on both cameras. P* doesn’t play with auto ISO. When you turn auto ISO off there is a delay in the P* settings changing which is why I didn’t catch it on my first try.

I was seeking to try P* for my U3 setting on the Z7II. Z50 doesn’t have U3.

Manuals deserve a footnote.

You would think that in the P Mode, Auto ISO would be turned on via the program. Guess it is one of the features that could be changed or be max limited. If so, why not just use A or S mode? Ahh, what do I know.