Digital BW, The Print

Well oof is definitely the sound I make when I see dust and scratches  
on negs ;) (Sorry, I thought it was funny anyway)



AnnMarie


AnnMarie Tornabene
www.annmarietornabene.net



On Jan 4, 2008, at 11:39 AM, Gary Weaver wrote:

> The focus thing isn't just epson flatbeds.
>
> I have two scanmaker III's and one is much sharper. Or rather, one  
> much worse.
>
> I mistakenly developed some unexposed 4x5 and used these sheets to  
> Sharpie mark and layered them on the glass bed to see which was  
> sharper. The FP4 was maybe too thick for this test..
>
> I suspect that a degree of OOF is built-in to minimize dust and  
> scratches.
>
> But ...
>
> gar
> .
>
> *********** REPLY SEPARATOR  ***********
>
> On 1/4/08 at 9:52 AM Doug Fisher wrote:
>
>>>> The tests I've seen show that the 4990 is capable of resolving  
>>>> about
>> 2100
>> ppi. So it would seem that scanning at anything higher is just  
>> increasing
>> the file size without gaining anything in useful information. I  
>> use a 4990
>> with 4x5 and 8x10 negatives.<<
>>
>> That is about right.  You might want to do some shimming tests to  
>> see if
>> you
>> can eek out a bit more sharpness.  Every bit helps with these  
>> scanners.
>> Norm Koren discusses this.  Here are two links that show examples:
>>
>> http://www.normankoren.com/Tutorials/ 
>> Epson_flatbeds.html#Focus_spacing
>>
>> http://www.larry-bolch.com/ephemeral/4870-shims.htm
>>
>> This example shows the difference when you hold the film really  
>> flat and
>> then adjust by only .2 mm (click on the image to enlarge it and  
>> see the
>> text
>> in Internet Explorer):
>>
>> http://farm3.static.flickr.com/2035/1664778870_ba674a82da_o.gif
>>
>>
>> Doug
>> ---
>> BetterScanning.com - Innovative Accessories for Better Film Scanning
>> http://www.BetterScanning.com/
>>






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