Pixilated Skys

[kh]

I have just got an EOS300D/Rebel and find the picture quality excelent except for skys which often appear very pixilated. The camera is set to large file , fine quality. I am presumeing it is to do with the cameras internal compression. Does anyone else have this problem and whats more does anyone have a solution. Thanks Kevin.

[drisley]

I found the Digital Rebel to have very smooth flat areas, such as skys. It's a big improvement over similar shots from point&shoot cameras like the G3 that use a small ccd sensor.
What ISO were you using?

[Koontsa]

The solution to deal with compression, which this souns like, is to shoot raw. That is a "clean" image without anything done to it.

[timmyquest]

The solution to deal with compression, which this souns like, is to shoot raw. That is a "clean" image without anything done to it.

I honestly dont think the JPEG conversion in any of canon/nikon DSLR's will cause that to a noticable amount.

I'm guessing the pixilation he is refering to is ISO speed which as you know causes noise, which can be seen easier in large areas of the same color...Sky.

So what ISO setting did you have it on?

[drisley]

If you check out Steve's Digicams review of the Rebel, he has some sample pictures.
http://www.steves-digicams.com/2003_reviews/300d_samples.html

There are quite a few with blue sky, and they are all super clean.
There is one picture of the girls playing beach volleyball that was shot at ISO400 that has some slight noise in the sky area.

[wolf]

I have just got an EOS300D/Rebel and find the picture quality excelent except for skys which often appear very pixilated. The camera is set to large file , fine quality. I am presumeing it is to do with the cameras internal compression. Does anyone else have this problem and whats more does anyone have a solution. Thanks Kevin.

Neat Image (http://neatimage.com/) is excellent software for removing noise and very reasonably priced.

[DocFrankenstein]

:shock:

I've never had a problem with they skies not being "clean". Usually they are bright, the ISO is 100 and the noise is minimal. Even with Jpeg.

[Jesper]

Are you using an LCD monitor? The problem might be your monitor instead of your camera.

Some LCD monitors cannot display more than 6 bits per colour channel, which means they cannot display more than 2^6 = 64 shades of red, green and blue (in total 64 x 64 x 64 = 262,144 different colours).

CRT monitors and also the better LCD monitors can display 8 bits per colour channel; 2^8 = 256 shades of red, green and blue, 256 x 256 x 256 = 16,777,216 different colours.

Try looking at your photos on a different monitor, preferrably a CRT monitor.

[kh]

Thanks for the tips

ISO would have been on auto but would have used ' creative ' modes a bit and didn't realise that it maintained the last setting - just getting used to it. Shall always check ISO from now on.

Monitor coment is good and have scrabbled around in garage and found old one as am useing an LCD. Does seem a lot better. Have also printed one of the worse ones and is much better on paper.

All part of getting used to new equipment I guess.