Currently Being ModeratedMay 1, 2012 11:03 PM (in response to Andy Vans)
Ok, I have to correct my own post - it appears that when viewed at 100% both the Aperture version and the exported JPEG version look absolutely identical. Here is an example using the same image from the original post. So somehow the "fit to screen" version in other viewers is not compressing my exported file the same way Aperture does resulting in much "fuzzier" images. I will continue playing around with different export settings and see if it makes any difference. Still hope to see some encouraging suggestions on this forum.
Currently Being ModeratedMay 1, 2012 11:22 PM (in response to Andy Vans)
Ok, and here is my third and probably last post. As I suspected after my analysis of 100% crops, exporting with reduced sizes actually helps to achieve very similar JPEG look comparing to the original version in Aperture. Here is an example with the same file from the previous two posts but using export preset "Fit within 1024x900" and Quality 12. The resulting jpeg output looks much closer to the original on the screen; any difference is purely attributable to the compression effect (the output file size is only 500k). So I guess this solves the problem - I will use smaller export size to make sure it looks close enough to the original for web sharing. Hope this thread will help other users in the future. If you have any other tips with regard to this "issue", please share.
Currently Being ModeratedMay 2, 2012 4:07 AM (in response to Andy Vans)
"... In other viewers ... " is the key part. You are using the Preview program to make your comparisons. I suggest redoing the test with whatever final (Web) destination you will use.
You probably used 12 for your JPEG quality in order to eliminate that as a variable in your test. In practice, there is often no discernable difference between 10 and 12; 8 is regularly used for Web posting.
Whatever your results, sizing the file you make by exporting, for the use to which that file will be put, is recommended.