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Jpeg Compression On Night Shots  
User currently offlineRaptors From United Kingdom (England), joined Mar 2005, 154 posts, RR: 0
Posted (2 years 11 months 1 week 14 hours ago) and read 382 times:

Hi,

I have recently taken one or two night shots and notice a block like effect around some of the lit areas. I am pretty sure this is jpeg compression, but would like some confirmation of this fact. If it is, how can you get rid/minimise it? I use a Canon EOS 10D and shoot on L at 6.3mp. I don't seem to notice this problem on any day shots if this helps. Also, I don't plan to upload this shot to A.net so don't worry about other things ccw/colours etc, it is an example really.

Any help would be most appreciated.

Big version: Width: 1024 Height: 685 File size: 170kb
SA A340


2 replies: All unread, jump to last
 
User currently offlineLinco22 From United Kingdom (Northern Ireland), joined Jun 2005, 1369 posts, RR: 23
Reply 1, posted (2 years 11 months 1 week 14 hours ago) and read 378 times:

Stuart,

I can't see any jpe compression in the shot. With this particular shot it is underexposed and that might cause you to see what you are seeing?

Sorry I can't be of more help

Regards
Colin

User currently offlineRaptors From United Kingdom (England), joined Mar 2005, 154 posts, RR: 0
Reply 2, posted (2 years 11 months 1 week 14 hours ago) and read 369 times:

Hi Colin,

Aaaah, that might be the problem. Maybe it isn't Jpeg compression, but the exposure. I will try some example shots and see what happens. Thanks a lot.

Stuart

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