When I create an optimized GIF that contains only a few colors (8 rather 255), the handset will dither the colors rather than rendering them precisely. It does not matter whether i use "web safe" color palette or not.
Is this the expected behavior? How can GIF color be specified exactly (optimize), while keeping file sizes small?
This is not necessarily the behavior.
It can be possible to optimize an image to a 3-bit color system (for 8 colors) and avoid dithering. It all depends on how you optimized the image.
It is always safe if you use the "browser-safe web palette". It is an 8-bit color system (256 colors), but it is a widely used standard.
The Nokia 3650 has a 12-bit color system... for 4096 colors. But, the Nokia 3650 complies with the "browser-safe web palette" standard, so the image colors will map to the Nokia 3650 browser palette colors.
If you really want to keep the file sizes that small, try-out different optimizing methods. There are many tools that you can use to optimize (even down to 8 colors) while still some-what coordinating with "browser-safe" colors.
We cannot post our e-mails in this forum. That would be another level of support (Technical Case Solving). You can get more information on Technical Case Solving at:
http://www.forum.nokia.com/main/1,35452,23,00.html
However, if you could post your image on a simple XHTML page or an FTP site, I would be willing to download it and check-it-out for you.