AAAGH!--programmers...

[SterlingBjorndahl]

I demand both. Modern cameras allow very fast image acquisition. ...when everything works well.

I agree completely. We're not stuck in the days of film any more, though some folks here don't seem to realize just how much the paradigm has changed.

Best wishes,

Sterling
--
Lens Grit

 

[Jack Tingle]

Basic P-mode, Auto ISO. No PS.

Why do you not use Program Shift to fine tune the camera settings? It's there for the circumstance you refer to.

Also, what ISO is your upper ISO Limit set to?

PS does not affect ISO.

Program Shift does affect ISO if Auto ISO is engaged. It depends on the light levels and whether the upper ISO Limit has been reached.

I've just taken a photo with my G80 using P-mode with Auto ISO engaged and the camera set f1.8, 1/60, ISO 800. I then used the rear dial to engage Program Shift and shifted the aperture to f2.8. The resulting photo recorded f2.8, 1/60, ISO 2000. It works as it should, the ISO has changed.

Don't get me wrong, I'm just trying to find out your exact set-up to see if I can help to find a solution to the problem you've experienced.

You probably have min shutter speed set to 1/60th s (the default). In that case, yes, you've run out of ISO headroom. PS by itself does not change ISO, unless you've hit some limit. PS alone would have dropped your shutter speed below 1/60th to compensate for the aperture closure. I don't have min shutter speed set. It caused another problem for me.

The source of the problem is that the programmers put no schedule minimum on shutter speed, believing (apparently) that IBIS will handle it. They're depending on the fixed, user-set limit instead. That means every time you change a lens, you need to change the min setting, or shift to S-mode. You already have to do this on Olympus cameras with non-IS telephoto lenses above 150mm, for similar reasons.

The solution for me is to set a lower min speed, probably something like the inverse of my shortest lens (12mm) rather than turn it off entirely. For the test shots, I jacked up ISO by hand. I just object to lazy program designers not thinking about their envelope corners & making me band-aid their laziness. I do take new cameras to the corners to find these things. Better to know now than when the UFO lands right in front of you.

Don't get me started on cameras not having a hyperfocal range setting. Every manual prime lens has it etched on the focus ring. There are manual zooms with an entire family marked. There's a computer in these cameras capable of doing optical transforms, but they can't solve one lousy equation for the user?

 

[Jack Tingle]

Not a bad idea. I'd just go with a menu setting: nil, low, medium, high. To keep cost down.

There could be a target setting, too. Kids/birds/puppies, cars/airplanes/adults, landscapes. I guess the Sports mode is a crude form of this.

Very creative thinking, you.

 

[Regor250]

It's a center crop.

Sorry I missed that, my bad.

 

[Cafe Racer]

Basic P-mode, Auto ISO. No PS.

Why do you not use Program Shift to fine tune the camera settings? It's there for the circumstance you refer to.

Also, what ISO is your upper ISO Limit set to?

PS does not affect ISO.

Program Shift does affect ISO if Auto ISO is engaged. It depends on the light levels and whether the upper ISO Limit has been reached.

I've just taken a photo with my G80 using P-mode with Auto ISO engaged and the camera set f1.8, 1/60, ISO 800. I then used the rear dial to engage Program Shift and shifted the aperture to f2.8. The resulting photo recorded f2.8, 1/60, ISO 2000. It works as it should, the ISO has changed.

Don't get me wrong, I'm just trying to find out your exact set-up to see if I can help to find a solution to the problem you've experienced.

You probably have min shutter speed set to 1/60th s (the default).

This is not possible.

In that case, yes, you've run out of ISO headroom.

How does the camera "run out of ISO headroom" if the upper ISO Limit has not been reached? My upper ISO Limit is set to ISO 3200. In the example I gave in my previous post above, the ISO only reached ISO 2000.

PS by itself does not change ISO,

What does "PS by itself" mean and why does it not change ISO? It's useful to clarify so I know what you're talking about.

unless you've hit some limit. PS alone

"Some limit". Can you describe these limits?

What does "PS alone" mean?

would have dropped your shutter speed below 1/60th to compensate for the aperture closure.

My shutter speed did NOT drop below 1/60th to compensate for the aperture closure; it stayed at 1/60th and the ISO was raised. Can you explain why Program Shift with Auto ISO engaged operated like this and not the way you suggested?

I don't have min shutter speed set. It caused another problem for me.

What is the other problem that's caused by setting a minimum shutter speed?

The source of the problem is that the programmers put no schedule minimum on shutter speed, believing (apparently) that IBIS will handle it. They're depending on the fixed, user-set limit instead. That means every time you change a lens, you need to change the min setting, or shift to S-mode. You already have to do this on Olympus cameras with non-IS telephoto lenses above 150mm, for similar reasons.

The solution for me is to set a lower min speed, probably something like the inverse of my shortest lens (12mm) rather than turn it off entirely. For the test shots, I jacked up ISO by hand. I just object to lazy program designers not thinking about their envelope corners & making me band-aid their laziness. I do take new cameras to the corners to find these things. Better to know now than when the UFO lands right in front of you.

Don't get me started on cameras not having a hyperfocal range setting. Every manual prime lens has it etched on the focus ring. There are manual zooms with an entire family marked. There's a computer in these cameras capable of doing optical transforms, but they can't solve one lousy equation for the user?