350d best 'iso' for studio shoot

[photopaque]

Im in the studio tomorrow shooting full figure and portrait under tungsten.Is it always best to use the lowest iso-50 or should i go in the middle with 200-400.Thanks for any advice.

[Jim_T]

I think you'll find it difficult to select ISO 50 on your EOS 350D :)

Use the lowest ISO you can. That will give you the least noise (grain)..

[karusel]

Use the lowest ISO you can.

I think this is the only correct answer.

[Jesper]

But if you are only going to use regular tungsten lightbulbs, no flash, you'll probably discover that they will not give you enough light to go with the lowest possible setting (ISO 100).

Measure the light and see what shutter speed you need. If it's too slow, use a higher ISO setting. On my 10D I wouldn't use higher than ISO 400, because at ISO 800 and higher the noise in the photos becomes too visible. The 350D is probably better than the 10D with regard to noise - check it out for yourself...

[pradeep1]

The 350D is okay in ISO 800, but for critical studio work, I'd probably not go over ISO 400 if I could avoid it.

[rdenney]

Im in the studio tomorrow shooting full figure and portrait under tungsten.Is it always best to use the lowest iso-50 or should i go in the middle with 200-400.Thanks for any advice.

Pros approach it this way: What film gives me the look that I want? Then, what aperture gives me the look that I want? What shutter speed will my subject need (for example, blowing hair, etc., and assuming the camera is on a tripod). Finally, how much light do I need from my lighting system to expose that film properly at that aperture and shutter speed?

Non-pros are usually light limited and work backwards from the amount of light they have. 1.) Turn on lights. 2.) Press shutter button to get meter reading. 3.) Figure out how to get the shutter speed and aperture I want.

I would rather have an appropriate shutter speed and aperture than perfectly noiseless images. So, pick those first and then select the ISO that makes it possible. If it's over 400, get more light.

Rick "who has wished he had ISO 50 at times to keep from having to stop down too far when using studio strobes" Denney

[pradeep1]

Pros approach it this way: What film gives me the look that I want? Then, what aperture gives me the look that I want? What shutter speed will my subject need (for example, blowing hair, etc., and assuming the camera is on a tripod). Finally, how much light do I need from my lighting system to expose that film properly at that aperture and shutter speed?

Non-pros are usually light limited and work backwards from the amount of light they have. 1.) Turn on lights. 2.) Press shutter button to get meter reading. 3.) Figure out how to get the shutter speed and aperture I want.

I would rather have an appropriate shutter speed and aperture than perfectly noiseless images. So, pick those first and then select the ISO that makes it possible. If it's over 400, get more light.

Rick "who has wished he had ISO 50 at times to keep from having to stop down too far when using studio strobes" Denney


Your approach is good.