Canon 450D ISO performance

[triptych]

Hi,

Whats the best way to test ISO performance on my 450D?

I find that I get a lot of noise when I put the ISO up to just 400. I normally shoot on either 100 or 200ISO but sometimes I feel I need to bump it up in low light conditions but then I get the noise problem. Does anyone else who has a 450D have this problem?

[Jules]

I noticed noise if I used ISO 1600, but can't say it was an issue at ISO 400. I tended to add +1/3 exposure compensation to avoid underexposure, which is where you're most likely to see noise.

[DNA]

How does the histogram look with the exposures? If you push to the right (i.e. slightly overexpose) you will minimize noise issues even at higher ISOs. I said minimize, not eliminate. Post a sample image and include a screenshot of the histogram of the raw file as well before any adjustments were made.

[stevebr]

I notice noise on my 450D at ISO800 and 1600. However, have found ISO 400 to be resonable.

[LJG]

Same on mine, I always tried to stay at 400 at the max, they don't have great iso performance.

[Jaded62]

400 is max for me on my 500D. I'll go higher if there's plenty of light but I'm usually disappointed with the outcome.

[chrisprendergast]

i remember it being acceptable till around 800 on my old 450d

[rbat]

400 is usually ok, but higher I find a lot of noise also.

[aquafish]

ISO 400 is noticeably noisy on my 450D too. It's quite depressing really. I'm saving up my pennies for a better Canon - which one I don't know yet.