Shutter speed limit not working

[nirg]

Advertisement (gone after registration)

I like to set up my camera in Auto ISO settings as follows:

• Maximum ISO = 6400
• Shutter speed limit = 1/250

What I want it to do therefore, is reduce the shutter speed down to 1/250, then raise the ISO up to 6400, and if those limits are hit, underexpose the image. 

However, in low light, the 6400 ISO limit is honoured, but the shutter speed drops below 1/250. 

Is there a setting somewhere else I need to set? I had this working easily on my Canon, so I assume I'm just doing something incorrectly. 

[UliWer]

You might choose 1/250 as a fixed setting manually.

[jaapv]

On Auto ISO the camera will not underexpose but it will adapt the limits. 

[Jewl]

Yes, thought the same and still think this is the worst implementation of a feature. Setting a shutter limit which is anyway being exceeded depending on situation is from my perspective useless as you have to keep an eye on the shutter speed while composing anyway! And then, readjust, shot gone!

[Smogg]

53 minutes ago, Jewl said:

Yes, thought the same and still think this is the worst implementation of a feature. Setting a shutter limit which is anyway being exceeded depending on situation is from my perspective useless as you have to keep an eye on the shutter speed while composing anyway! And then, readjust, shot gone!

and in my opinion this is the best implementation, since an underexposed frame on 6400 cannot be corrected in the future without a huge amount of noise. It’s better to let the movement in the frame be a little blurry. If you want to avoid this, just set 1/250 on top of the camera, it's very fast

[jaapv]

9 hours ago, Jewl said:

Yes, thought the same and still think this is the worst implementation of a feature. Setting a shutter limit which is anyway being exceeded depending on situation is from my perspective useless as you have to keep an eye on the shutter speed while composing anyway! And then, readjust, shot gone!

Leica doesn't like their cameras to produce unusable images; as said just override manually. You don't need an eye on the shutterspeed, just count the clicks.

[nirg]

Advertisement (gone after registration)

11 hours ago, Jewl said:

Yes, thought the same and still think this is the worst implementation of a feature. Setting a shutter limit which is anyway being exceeded depending on situation is from my perspective useless as you have to keep an eye on the shutter speed while composing anyway! And then, readjust, shot gone!

I agree with this. At the end of the day, maintaining shutter speed to me to prevent blur is far more important to me than having a correctly exposed photo. With the dynamic range available on the new sensors, boosting a dark image and denoising is no problem at all. 

I don't think setting a shutter speed helps. If I am moving between dark and bright spaces, the image will be overexposed. 

A miss by Leica in my view. 

[jaapv]

That depends. Go to manual, set to 125 if that is your slowest possible shutter speed , and use the aperture to control overexposure.  The triangle leds will help you (read the manual) If you want to change shutterspeed, count the clicks. The effect will be much the same. And you have 15 stops to play with in post.

Leica M cameras are basically manual cameras with some automation added. You cannot expect them to work exactly like the fully automated image-making computers of today.  

[Smogg]

7 hours ago, nirg said:

I agree with this. At the end of the day, maintaining shutter speed to me to prevent blur is far more important to me than having a correctly exposed photo. With the dynamic range available on the new sensors, boosting a dark image and denoising is no problem at all. 

I don't think setting a shutter speed helps. If I am moving between dark and bright spaces, the image will be overexposed. 

A miss by Leica in my view. 

What's stopping you from simply raising the upper ISO limit above 6400 in the auto-ISO setting if you're prepared for the extra noise level? the result will be exactly the same as with subsequent correction of an underexposed photograph in a photo editor

[Smogg]

Acceptable noise levels for me are around ISO 6400, but I tend to underexpose my photos a bit to avoid blown out highlights. That is why I set 3200 ISO in the auto-ISO settings, understanding that during processing I will adjust the shadows and midtones upward, thereby bringing the result just to 6400 ISO, which is acceptable for me in terms of noise

[SrMi]

On 1/27/2024 at 8:12 PM, nirg said:

I like to set up my camera in Auto ISO settings as follows:

• Maximum ISO = 6400
• Shutter speed limit = 1/250

What I want it to do therefore, is reduce the shutter speed down to 1/250, then raise the ISO up to 6400, and if those limits are hit, underexpose the image. 

However, in low light, the 6400 ISO limit is honoured, but the shutter speed drops below 1/250. 

Is there a setting somewhere else I need to set? I had this working easily on my Canon, so I assume I'm just doing something incorrectly. 

Leica's cameras behave like all other cameras when the Auto-ISO shutter speed limit is reached: shutter speed is lowered. If you want to keep the shutter speed at 1/250 as long as possible, set the Auto-ISO's upper ISO limit to the maximum. The high ISO does not cause the noise, but the exposure does (scene light, aperture, and shutter speed).

[Photoworks]

On 1/27/2024 at 11:12 PM, nirg said:

What I want it to do therefore, is reduce the shutter speed down to 1/250, then raise the ISO up to 6400, and if those limits are hit, underexpose the image. 

I'm not sure if setting AUTO should underexpose unless you asked for it, any camera that does that gives you incorrect exposure.

I probably would suggest to photograph only in good light. 

 

the camera after all has 2 shooting Modes, Manual and Aperture Priority, even setting some settings to A you are still in aperture priority.

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

Edited January 29, 2024 by Photoworks

[nirg]

3 hours ago, Photoworks said:

I probably would suggest to photograph only in good light. 

 that's quite wishful thinking. 

5 hours ago, SrMi said:

Leica's cameras behave like all other cameras when the Auto-ISO shutter speed limit is reached: shutter speed is lowered.

That's not how Canon's auto ISO mode works. Shutter speed minimum is always the floor, and the image is underexposed.

Anyway, thanks for the replies. Clearly I'm not missing a function here.

[Photoworks]

3 hours ago, nirg said:

Shutter speed minimum is always the floor, and the image is underexposed.

I have a few Canon, but all the batteries are dead

I wonder if that is the same in Aperture Priority in the canon

[SrMi]

4 hours ago, nirg said:

 that's quite wishful thinking. 

That's not how Canon's auto ISO mode works. Shutter speed minimum is always the floor, and the image is underexposed.

Anyway, thanks for the replies. Clearly I'm not missing a function here.

Reading posts on DPR, it seems that Canon R7's Auto ISO works the same way as Leica.

[helged]

Not fully on-topic, but related, from one that doesn't have experience with M11...:

What is the longest possible shutter speed on M11 shooting in aperture mode (at base ISO, and without involving Bulb)? 

On SL2-S the longest shutter speed is 120 sec (if I remember correctly); on S3 it is 8 min. 

I see that the longest possible shutter speed on M11 is 60 min, but I guess this is in Bulb-mode (?). 

[RobW0]

1 hour ago, helged said:

Not fully on-topic, but related, from one that doesn't have experience with M11...:

What is the longest possible shutter speed on M11 shooting in aperture mode (at base ISO, and without involving Bulb)? 

On SL2-S the longest shutter speed is 120 sec (if I remember correctly); on S3 it is 8 min. 

I see that the longest possible shutter speed on M11 is 60 min, but I guess this is in Bulb-mode (?). 

I think you set a user defined time in the Bulb setting up to 60min. So you set it to B and then set how long to keep the shutter open for.

[SrMi]

1 hour ago, helged said:

Not fully on-topic, but related, from one that doesn't have experience with M11...:

What is the longest possible shutter speed on M11 shooting in aperture mode (at base ISO, and without involving Bulb)? 

On SL2-S the longest shutter speed is 120 sec (if I remember correctly); on S3 it is 8 min. 

I see that the longest possible shutter speed on M11 is 60 min, but I guess this is in Bulb-mode (?). 

It seems that M11 can do at least 24min in A mode (metered). In B mode you can set it up to 60min.

[helged]

7 hours ago, SrMi said:

It seems that M11 can do at least 24min in A mode (metered). In B mode you can set it up to 60min.

Thanks, this was the info I was thinking about. As I understand it, M11 meters the light from the sensor, so longer (than conventional) shutter speed in meter A mode is possible. A nice feature for night photography (or for those using nd filters). 

Edited February 4, 2024 by helged

[Advertisement]

Hallo,

Look here: Interesting Leica gear

[SrMi]

8 hours ago, helged said:

Thanks, this was the info I was thinking about. As I understand it, M11 meters the light from the sensor, so longer (than conventional) shutter speed in meter A mode is possible. A nice feature for night photography (or for those using nd filters). 

I believe that M11 and X2D are unique in that they can meter such long shutter speeds.