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triptych
08-02-2011, 8:50am
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
08-02-2011, 9:19am
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
08-02-2011, 2:13pm
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
10-02-2011, 9:36pm
I notice noise on my 450D at ISO800 and 1600. However, have found ISO 400 to be resonable.

LJG
11-02-2011, 6:00am
Same on mine, I always tried to stay at 400 at the max, they don't have great iso performance.

Jaded62
11-02-2011, 12:22pm
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
11-02-2011, 2:10pm
i remember it being acceptable till around 800 on my old 450d

rbat
14-02-2011, 8:49am
400 is usually ok, but higher I find a lot of noise also.

aquafish
24-02-2011, 12:29pm
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.