Photo Contest Help
- By hne
- Speedlites, Printers, Accessories
- 4 Replies
I sure hope the specification of file size being between four millibit and 15 millibit was a typo.
Let me send in a few 300x450 pixel files "compressed" to 10MB size, with some embedded metadata stating that they are 1"x1½" in size, that is... 300dpi. No problemos!
No, you can't specify a lowest file size for a compressed file and assume that'd say anything about the quality. That is insane. I've got lots of files at under a megabyte that look fantastic blown up big and several files over 10MB that just look ugly if you print them larger than postcard-sized because of all the distracting fine detail.
I would specify a list of acceptable file formats, a minimum expected pixel dimension of about 2400x3600 and a warning that too much compression or low number of pixels will cause the prints to look bad, lowering the chances of winning. Possibly also a line on any technical restriction in maximum file size accepted for submissions, eg "no larger than 100MB per file".
Let me send in a few 300x450 pixel files "compressed" to 10MB size, with some embedded metadata stating that they are 1"x1½" in size, that is... 300dpi. No problemos!
No, you can't specify a lowest file size for a compressed file and assume that'd say anything about the quality. That is insane. I've got lots of files at under a megabyte that look fantastic blown up big and several files over 10MB that just look ugly if you print them larger than postcard-sized because of all the distracting fine detail.
I would specify a list of acceptable file formats, a minimum expected pixel dimension of about 2400x3600 and a warning that too much compression or low number of pixels will cause the prints to look bad, lowering the chances of winning. Possibly also a line on any technical restriction in maximum file size accepted for submissions, eg "no larger than 100MB per file".
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