Sony Alpha 7 Review at dpreview

[aeturnum]

I personally find auto-ISO to be very useful. Most of the time, auto-ISO is very similar to using a fixed ISO. As others have said, you select an aperture and shutter speed and the camera generally chooses the same ISO all the time. However, sometimes you catch surprisingly good light and using auto-ISO allows you to get a much cleaner photo at your chosen settings.

Think of it like this. You've got half your roll of 3200 from last night, which you're going to use tonight, but right now you've got a great frame in broad daylight. It's like being able to swap over to some nice ISO 100 stock for just that shot.

 

[dcsang]

I personally find auto-ISO to be very useful. Most of the time, auto-ISO is very similar to using a fixed ISO. As others have said, you select an aperture and shutter speed and the camera generally chooses the same ISO all the time. However, sometimes you catch surprisingly good light and using auto-ISO allows you to get a much cleaner photo at your chosen settings.

Think of it like this. You've got half your roll of 3200 from last night, which you're going to use tonight, but right now you've got a great frame in broad daylight. It's like being able to swap over to some nice ISO 100 stock for just that shot.

Yep.. I understand how it's used.. at the same time though in that scenario I can just change the ISO manually to ISO 100 and get the shot. Like I said, I've never been in a situation where it must be changed "that quickly" 🙂

Cheers,
Dave

 

[jsrockit]

Like I said, I've never been in a situation where it must be changed "that quickly"

I guess those of us who use it trust our cameras within a certain ISO range, so we don't stress about the small lose in quality that may happen. It's just two different ways to use a camera.

 

[jpfisher]

I don't have an A7 in front of me. But if my memory isn't jumbled, you can shoot in a TAv like mode if desired--set the camera to (M)anual and set ISO to auto. Adjust shutter speed and aperture to your liking, the ISO will adjust for proper exposure if possible.

That's how it works on the RX10, which I do have in front of me. If the A7 implementation is identical, a half press of the shutter will reveal the ISO that the camera has selected, and the ISO AUTO indicator will flash if the exposure is out of range given selected shutter and aperture.

 

[Michael Markey]

Why is the Ricoh useless? If you need a higher shutter speed just pick one... you don't even need TAv then...you just use shutter priority for the speed you need.

Thanks John ...I clearly need to root around the menu more.😱

 

[Michael Markey]

I guess those of us who use it trust our cameras within a certain ISO range, so we don't stress about the small lose in quality that may happen. It's just two different ways to use a camera.

I think thats the case with me too.
The iso is so clean over such a wide range with very little loss in quality that I don`t consider it as an issue any longer.