Best high ISO performance?

Comparing the 30D, 40D and XSi, which has the best ISO performance at 800 and 1600?

Thanks!

Jim

There are many threads on this. 40D.

PAFC2004 wrote in post #5853079
There are many threads on this. 40D.

Actually, I've searched and read all the reviews and I've yet to find a definitive answer. Seems everyone thinks what they have is the best. I have an XTi and I'd like better high ISO performance.

Jim

40D

30D.

I've used 2 of the 3 cameras mentioned (30D/40D), and don't really see much high-ISO noise difference between them at the pixel level. I can't imagine the XSi will be much different. I also doubt any of them will be significantly different than your XTi. One benefit of the higher megapixel cameras in the group is that you will be compressing a bit more for similar print sizes when you crop, which will compress the noise a bit to give the appearance of less noise. With the 40D (or 30D), you'll have ISO3200 available in the camera, instead of having to underexpose a stop and push in post with the XSi.

IMO, if you want to see a drastic high-ISO noise improvement, you'll have to move to the 5D or 1DMkIII. That being said, I routinely shot my 40D at ISO3200 for night games with acceptable results. The shots required noise reduction in post, and fine detail is pretty much obliterated, but you can get acceptable 4x6 and 5x7 prints out of it.

You can also look at the reviews on dpreview.com and check his noise graphs.

I owned both the 30D and 40D. My verdict: 40D hands down!

i dont have 30d or xsi, but i have xti and 40d, 40d hands down.

The 30D produces slightly less overall noise at similar outputs, but the 40D has a very good chroma noise reduction option that costs nothing in image quality and beats the 30D's chroma noise by a fair margin. The expense of that noise reduction function is reduced buffer size.

the 20D and 30D have the very same noise output and sensors, and I have a 20D, so that's my reference point.

Excellent feedback! Here are a couple of 100% crops, resized for posting of course, that will hopefully show why I posted the question. I shot a lot of snapshots at a family reunion yesterday with my XTi. I had it set at 400 ISO using AV mode Full sun photos were good but many shot in the shade showed visible noise. I didn't think I'd have any noise issues at 400 with the XTi. Both cleaned up nicely with Noiseware but I'd prefer not to have to clean at this low of ISO setting.

Anyway, I'd like to have better noise performance than this which is why I asked the question.

Thank you all for your help!

Jim

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40D

Noise is always more visible in shadows. Increase your exposure by shooting to the right (+exposure compensation) and you will see less noise. Use RAW and you can even get away with slightly blowing out areas without losing the detail, if you know how to use photo editing apps at all.

http://the-digital-picture.com …al-SLR-Camera-Review.aspx

ps249 wrote in post #5853496
I owned both the 30D and 40D. My verdict: 40D hands down!

I agree. I've owned both. As was mentioned the 30D's chroma noise is the issue. Shots in the same circumstances, the 30D's will be much harder to "fix" due to the chroma noise. The 40D controls that quite well. There's just no comparison. I also have a M3 which is great at dealing with noise and I'd put the 40D closer to it and the 5D (which I used to own and am quite fond of) than the 30D (it ranks on the bottom for me and I owned 2).

form wrote in post #5853690
Noise is always more visible in shadows. Increase your exposure by shooting to the right (+exposure compensation) and you will see less noise. Use RAW and you can even get away with slightly blowing out areas without losing the detail, if you know how to use photo editing apps at all.

http://the-digital-picture.com …al-SLR-Camera-Review.aspx

Actually, I did shoot in RAW, converted to TIFF with slight sharpening and a light boost in contrast and saturation during conversion. I did the 100% crop from the TIFF image and saved it as a JPG.

Talk to me about shooting to the right. Would bumping the EC a 1/3 or 2/3's reduce the noise? Can this be a setting I use all the time or is a picture to picture decision?

BTW, that is an excellent comparison at the link provided. The 40D is easily the winner.

Thanks for the feedback!

Jim