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[OM] Re: measuring lens performance

Subject: [OM] Re: measuring lens performance
From: james king <jking@xxxxxxxxxxxxxx>
Date: Fri, 31 Mar 2006 11:05:19 +0100
> 
> 
> Something else you might be running up against is the lateral
> halation of Velvia 100F. I'm running into a resolution brick
> wall with the film that isn't the case with some other films. It
> appears like lens blur when viewed with a high-magnification
> viewer or when scanned.  When projected, this isn't an issue due
> to defraction--in fact the very nature of the blurring may
> actually enhance sharpness when projected.
> 
> AG
> 

this could be it, when I look at the edges of the black lines there is 
some bleed into the white areas. I assumed it was ink bleed from the 
bubble jet printer I used to make the mtf charts but it could just as 
easily be bleed within the film. Hmmm sounds like something I will have 
to reshoot using different films and compare the bleed....

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