Tom Scales wrote:
>..........
> For a 13x19, which I print a lot,
>
> 13*240=3120
> 19*240=4560
>
> So, for excellent 81/2x11 (or A4), the 2700 dpi scanners do a great job.
> For 13x19, a 4000dpi scanner makes a big difference. The challenge for the
> 19inch dimension and a 2700 dpi scanner is 2700/19=142dpi, which is very
> marginal for the biggest prints.
>
It seems to be something wrong with your calculation, 2700dip for 35mm
frame should be around 2700x35/24.5=3857 and 3857/19=203dpi.
> As for JPG, I don't believe it is a mathematical representation, but I could
> be wrong. Regardless, it is lossy, so even the highest quality won't match a
> TIF. I scan 35mm negs into TIF, at around 62MB per TIF. Even at 90%
> quality (which is very high), JPG's are around 6MB still. Of course,
> resizing smaller and less quality for the web makes them manageable, but not
> what I would print from. Think about it, a 36 exposure roll, at 60Mb per
> pic takes over 2GB.
>
For JPEG, usually a level 9 in Photoshop will do a quite good job. If
you still not satisfy, set it to 10. With a 60MB file I think it will
be around 10MB-12MB, I bet you can't see the different with your Epson
print. I have output a lot of slides with my Polaroid Propalette 8000
film recorder, I'm quite satisfy with JPEG as long as you don't set
the compression level too low. It save a lot of space even you own a
CD writer and also the time to process them.
C.H.Ling
> My thoughts.
>
> Tom
>
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