manut Posted October 24, 2008 Share Posted October 24, 2008 This is shot with a 50-200/f2.8-3.5 with a 1.4 TC. The effect that is in this photo was in all the sunset phots I took.<div></div> Link to comment Share on other sites More sharing options...
r.t. dowling Posted October 24, 2008 Share Posted October 24, 2008 I don't see any PF, but I see massive amounts of JPEG compression... Link to comment Share on other sites More sharing options...
Tom Wiggins Photography Posted October 25, 2008 Share Posted October 25, 2008 R.T got that right the JPEG compression is massive. Did you in processing to you try to enlarge image, by a factor of say 10X or more? I've seen similar JPEG artifacts when I tried to do that myself, using photoshop. Link to comment Share on other sites More sharing options...
paul_p3 Posted October 26, 2008 Share Posted October 26, 2008 ... and is related to bit depth rather than compression per se? Though JPG compression will reduce bit depth while 'compressing' so I suppose I should shut up here and not venture any further into stuff I know nothing about? ;-) Link to comment Share on other sites More sharing options...
manut Posted October 29, 2008 Author Share Posted October 29, 2008 Yes, I did make these smaller JPEG to post online. I checked the original and it was not there. How can I avoid this when I want to make photos smaller for posting online and keep the quality too. Link to comment Share on other sites More sharing options...
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