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Re: filmscanners: Stellar ghosts and Leaf 45



on 5/14/01 3:22 AM, Harry Lehto wrote:

> 
> Todd wrote:
> 
>> I tried this with my Leafscan 45 And I get color fringing around the holes.
>> I pin pricked the black leader from color neg film and scanned it as color
>> neg. At 100% The hole edges are ringed with red and green. Does anyone else
>> experience this phenomenon? I suspect that my scanner, being a three pass
>> design, is having registration problems between the channels, or because the
>> red channel typically seems softer than the other channels.
> 
> Not ringing but other odd things with a Canon 2710S. My neighbour scanned
> the same holes that I had with the Nikon Coolscan IV, and the results were
> quite interesting. With his permission I've put the sscans into my web
> area. He tells that this is the first time he has seen anything like this
> www.astro.utu.fi/~hlehto/nikontest/2710.jpg                   (size 30K)
> The image shows the upper right corner of the holed slide. The Nikon scan
> of the same area is at
> http://www.astro.utu.fi/~hlehto/nikontest/tcrop0004upper.jpg  (size 35K)
> These are both from the upper right corner of the slide
> http://www.astro.utu.fi/~hlehto/nikontest/tcrop0004small.jpg  (size 23K)
> To me the Nikon ghosts look similar to the Canon ones, expect that they
> are slighly weaker and that all the colors are pretty much on top of one
> another yielding a greyer image. Note that they behave in a similar
> coma-like manner!
> 
> Regards
> Harry
> hlehto@astro.utu.fi
> 
> 
> 
Harry,

I don't have a site to load my image onto, but I thought since you are doing
comparisons you'd like to see what my scan looks like. It is a crop from a
2510 dpi scan. In spite of the color fringing there is considerably less
"coma" than on your other samples - and my unit is not in perfect working
order!

Todd

PS, since you are sharing your results with the list you are welcome to add
mine to the collection. Let me know if you'd prefer a different view or
anything.

Attachment: pin holes crop.jpg
Description: application/applefile

Attachment: pin holes crop.jpg
Description: JPEG image



 




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