How to convert slides of herbarium specimens into good qualityweb site images?

Anthony Pigott Anthony.Pigott at BTINTERNET.COM
Fri Dec 15 20:35:18 CST 2000

I would think one of the best and cheapest (~0.50 GBP each) methods is
to have the slides put on Kodak Photo CD. This gives you several,
including very high, resolutions (Kodak say most of the information in
the slide), an archive (-ish) quality storage and you can convert to
JPEG for putting on the web. You can see a few examples of this (not
using the highest resolution) on the British Pteridological Society's
site at:



Diana Horton wrote:
> I have some excellent quality slides of herbarium specimens, and I would
> like to put these up on a web site.  We tried scanning the slides using a
> Polaroid Sprint Scan (for slides), and the results were disappointing - the
> images were very fuzzy when blown up.  That presumably reflected the fact
> that they were scanned at 500 dpi; however, if we used higher resolution to
> scan, the images would take *forever* to come up on a web site, so that
> wouldn't be practical.  We then tried taking photos of the slides with a
> digital camera.  Those images are much sharper than the scans of the
> slides, but they're still nothing comparable to the original slides.  The
> last thing we've tried is to have prints (of the slides) made and then to
> scan the prints.  However, the latter costs $10/print (for good quality
> prints), and that becomes pretty pricey on 20+ slides!
> Can anyone tell me how to go from a slide image to a web image of
> comparable quality (i.e., sharp and clear, even if the viewer increases the
> magnification) that can be downloaded in a reasonable time frame?!
> Thank you!
> Diana Horton
> Curator, University of Iowa Herbarium
> Associate Professor, Department of Biological Sciences
> 312 CB
> University of Iowa
> Iowa City, IA  52242-1297

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