A7CR - ISO limits and min shutter speed doesnt seem to work for me

[SillyPosition]

I have a preset where the min. shutter speed is set to 1/160s (kids...), and I also dont like alot of noise in my pictures (yes, I can postprocess to improve noise but its just another task), so I have my ISO limited to range 100 - 2500.

However... in lowlight conditions, it seems like the camera won't respect those settings and either lower the shutter speed, raise the ISO to much higher or sometimes both.

I expect that in those conditions, the camera will underexpose and I'll be able to see it immediately and then decide if raising my iso, lowering my shutter speed etc

 

[RealWorldPhoto]

I have a preset where the min. shutter speed is set to 1/160s (kids...), and I also dont like alot of noise in my pictures (yes, I can postprocess to improve noise but its just another task), so I have my ISO limited to range 100 - 2500.

However... in lowlight conditions, it seems like the camera won't respect those settings and either lower the shutter speed, raise the ISO to much higher or sometimes both.

Don't use auto settings if you want full control.

Personally I prefer some noise over blurred photos.

 

[SillyPosition]

I have a preset where the min. shutter speed is set to 1/160s (kids...), and I also dont like alot of noise in my pictures (yes, I can postprocess to improve noise but its just another task), so I have my ISO limited to range 100 - 2500.

However... in lowlight conditions, it seems like the camera won't respect those settings and either lower the shutter speed, raise the ISO to much higher or sometimes both.

Don't use auto settings if you want full control.

Personally I prefer some noise over blurred photos.

I’m not using auto.
im using aperture priority

 

[RealWorldPhoto]

I have a preset where the min. shutter speed is set to 1/160s (kids...), and I also dont like alot of noise in my pictures (yes, I can postprocess to improve noise but its just another task), so I have my ISO limited to range 100 - 2500.

However... in lowlight conditions, it seems like the camera won't respect those settings and either lower the shutter speed, raise the ISO to much higher or sometimes both.

Don't use auto settings if you want full control.

Personally I prefer some noise over blurred photos.

I’m not using auto.
im using aperture priority

This is auto. You set the aperture, and leave the rest to the camera.

Full control is M (Manual) settings.

 

[FormerFearlessPhotog]

I have a preset where the min. shutter speed is set to 1/160s (kids...), and I also dont like alot of noise in my pictures (yes, I can postprocess to improve noise but its just another task), so I have my ISO limited to range 100 - 2500.

However... in lowlight conditions, it seems like the camera won't respect those settings and either lower the shutter speed, raise the ISO to much higher or sometimes both.

I expect that in those conditions, the camera will underexpose and I'll be able to see it immediately and then decide if raising my iso, lowering my shutter speed etc

I'm assuming that you're using these settings in aperture priority since you don't say so, but that is generally the most likely case for using auto ISO and setting a minimum shutter speed. The camera is working as intended, it's using those limits within the range of obtaining a proper exposure, and adjusting them when the conditions go outside of being able to obtain a proper exposure with those settings. If you want control in those situations, the solution is straight forward, use your camera in manual with auto ISO, or manual with manual ISO, and then the camera will underexpose when your settings are wrong as you'd expect.

I'd also like to point out that if this is happening frequently, the implication is that you're frequently not using the appropriate settings for the environment you're shooting in, which is something you'll need to figure out on your own.

You also mention that yu're using an A7CR, a camera that can produce totally useable results at ISO 25600, but you set your ISO limit to 2500, which is a limit I wouldn't even impose on a DSLR from 20 years ago. With that sensor you shouldn't even have much need for noise reduction at any ISO below 6400. 1/160 is also quite a slow shutter speed limit for any kind of movement or action unless having some amount of motion blur is your intention.

 

[SillyPosition]

I have a preset where the min. shutter speed is set to 1/160s (kids...), and I also dont like alot of noise in my pictures (yes, I can postprocess to improve noise but its just another task), so I have my ISO limited to range 100 - 2500.

However... in lowlight conditions, it seems like the camera won't respect those settings and either lower the shutter speed, raise the ISO to much higher or sometimes both.

I expect that in those conditions, the camera will underexpose and I'll be able to see it immediately and then decide if raising my iso, lowering my shutter speed etc

I'm assuming that you're using these settings in aperture priority since you don't say so, but that is generally the most likely case for using auto ISO and setting a minimum shutter speed. The camera is working as intended, it's using those limits within the range of obtaining a proper exposure, and adjusting them when the conditions go outside of being able to obtain a proper exposure with those settings. If you want control in those situations, the solution is straight forward, use your camera in manual with auto ISO, or manual with manual ISO, and then the camera will underexpose when your settings are wrong as you'd expect.

I'd also like to point out that if this is happening frequently, the implication is that you're frequently not using the appropriate settings for the environment you're shooting in, which is something you'll need to figure out on your own.

You also mention that yu're using an A7CR, a camera that can produce totally useable results at ISO 25600, but you set your ISO limit to 2500, which is a limit I wouldn't even impose on a DSLR from 20 years ago. With that sensor you shouldn't even have much need for noise reduction at any ISO below 6400. 1/160 is also quite a slow shutter speed limit for any kind of movement or action unless having some amount of motion blur is your intention.

Thanks,

My problem with M is that it forces me to always be "on it" and know my triangle of shutter/iso/aperature, and not always I want to mess with it,

That's why I tought I can get away with it by "scoping down" Aperture mode to my preferred limits.

Photos of my kids is usually OK with lowest value of 1/160s, or higher if light is decent,

And while we can discuss about being able to go up to iso 25600, noise is apparent somewhere above 6000 when viewing 100%

Is there another way to achieve what Im aiming for?

I want to have a preset of outdoors with family - that means faster shutter speed to guarantee sharpness of not-exactly stationary objects,

and another preset of night where I lower shutter speed and allow it to drop down to 1/60s

 

[daran]

I have a preset where the min. shutter speed is set to 1/160s (kids...), and I also dont like alot of noise in my pictures (yes, I can postprocess to improve noise but its just another task), so I have my ISO limited to range 100 - 2500.

However... in lowlight conditions, it seems like the camera won't respect those settings and either lower the shutter speed, raise the ISO to much higher or sometimes both.

I expect that in those conditions, the camera will underexpose and I'll be able to see it immediately and then decide if raising my iso, lowering my shutter speed etc

You may have missed that there are two ISO range limits you can change, one for manual ISO, the other for auto ISO?

 

[Dave981]

I want to have a preset of outdoors with family - that means faster shutter speed to guarantee sharpness of not-exactly stationary objects,

and another preset of night where I lower shutter speed and allow it to drop down to 1/60s

Try playing with the [ISO AUTO Min SS] settings.

 

[LarryRC]

If you have enough light the camera will respect your setting. When there isn’t enough light then there isn’t enough light. So something has to give and what gives are your settings. ISO has to go up and/or the shutter speed has to get longer.