Q3 LCD/EVF and Histogram dimming when using AFc

[Bryan Goh]

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Hi all,

Could anyone verify if the issue I’m having is normal?

In low light conditions when using AFc mode and half pressing the shutter. The LCD and EVF both dim down about a stop or more. The histogram also follows, so it’s not just screen brightness. 
 

It’s not a major issue but wanted to find out if it’s normal for the camera to do this. I don’t see this on my other cameras.

Before and after half press image below.

thanks! 

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[LCM94]

It's because (I guess) you see the live (real) jpeg exposure when half pressing the shutter

Edited May 30, 2023 by LCM94

[Bryan Goh]

4 minutes ago, LCM94 said:

It's because (I guess) you see the live (real) jpeg exposure when half pressing the shutter

The picture looks fine though. Histogram of the taken photo is as per before half pressing the shutter. 

[Bryan Goh]

So I just went to the Leica store to test out their demo unit in a dim room. Same situation, EVF/LCD/Histogram dims when half pressing in AFc mode. 

Took a photo and the photo shows correct exposure before half pressing the button. 

[Guest]

1 hour ago, Bryan Goh said:

So I just went to the Leica store to test out their demo unit in a dim room. Same situation, EVF/LCD/Histogram dims when half pressing in AFc mode. 

Took a photo and the photo shows correct exposure before half pressing the button. 

Is it stopping the lens down when you half press the shutter perhaps? Does it get even dimmer if you select a smaller aperture?

[LCM94]

write to Leica through the app, the respond quickly

[Bryan Goh]

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On 5/31/2023 at 2:04 AM, Corius said:

Is it stopping the lens down when you half press the shutter perhaps? Does it get even dimmer if you select a smaller aperture?

So I tested this. The focusing "dimness" is the same at f1.7 and at f16 in aperture priority. 

But I do believe you may be right that it is stopping down to acquire focus and the EVF/LCD brightness / ISO is not compensating for it during focusing. 

[justinkaplan]

I am curious if what the conclusion of this ended up being. I just got a Q3 and have noticed the exact same things but does not do it in AFs mode.

[Bryan Goh]

3 hours ago, justinkaplan said:

I am curious if what the conclusion of this ended up being. I just got a Q3 and have noticed the exact same things but does not do it in AFs mode.

Leica says that it is normal...