Does anyone have a comprehensive list of which cameras can do Auto ISO - meaning you can put the camera in manual and set the SS and Aperture and the camera will choose an appropriate ISO. Or you could use Aperture Priority and tell the camera not to use a shutterspeed lower than 1/60th - but choose to automatically bump the ISO instead.

Cheers
James

James, I am not answering your question but did want to raise an issue about Auto ISO. I have the Canon 40D and 50D which both have this feature. But it doesnt work for manual exposure as you suggest above - in fact it fixes the ISO at 400 if you try it. It works for all the other exposure modes though. Isn't it like that with other cameras?

Andre

You'd need to have TTL strobes too.

Alex

I do not have a " comprehensive list" but do know my
FUJI S5 will do auto ISO.

The Nikon D300 has it (and I assume the D3, D700 and maybe D90, too). On the D300 it works in manual, but as soon as you turn the pop-up flash on (and I assume any other TTL flash) it reverts to ISO 200.

I used auto-ISO yesterday to shoot these salmon by available light with a D2X in aperture priority mode.

I have used it in the past, and in my opinion it is better used without strobes. When I experimented with it with TTL strobes, as the camera was exposing for the overall scene the foreground colours tended not to be as strong. Of course every situation is different, but letting the strobe light the foreground and keeping the background 1 stop under exposed worked better for me....

BTW the Canon 5D Mk II also offers Auto ISO but it is exactly the same as the 40D an 50D - ie if you try it with Manual Exposure mode, the camera defaults to ISO 400 with or without flash.

Now that I have gone through the 5D Mk II manual it is has basically exactly all the same functions and menus as the 50D - it just adds the movie mode. But it would be a real easy move for a 50D owner.

Even my now aging Nikon D80 can do it.
I would almost assume that it is more a question of which Cameras can not do it.
I assume that the usefulness of it is depending on the Noise from the Sensor.

I am however a bit puzzled when you really want to use it! Especially UW!

/Erik

I love it for shooting fast action in changing light with my D700.

I'll set the exposure manually to control motion blur and DOF with ISO set to Auto and just shoot away. The D700 increments ISO at well less than a stop to fine tune the exposure.

Awesome feature ...

Ok, even I understand now
Could be useful, but what about the Strobes?


/Erik

You need automatic strobe control because every time you double your ISO you need to cut your strobe power in half. You can't do that manually on the strobe if you don't know what ISO the camera is going to pick. So you need to let the camera choose the strobe power.

Cheers
James

As mentioned before, at least for my D300, using a strobe effectively turns Auto-ISO off. I have my ISO set to 200. If I turn on Auto-ISO, I get ISO3200 (while sitting in my study because it is too dark for anything else). As soon as I turn the popup flash on or add a SB-800, the ISO drops back to 200. (Note if I have the ISO set to 400, it drops back to 400).

So, for the D300, Auto-ISO can't be used with strobes.

All of the prosumer level Olympus DSLR's have it, I'm unsure about the E3

My Nikon D90 has auto ISO that I can shoot in manual mode

Kirk