In my attempts to improve my RFS3600, I gained some limited contrast and sharpness improvements by lining the interior of the front portion of the light path (pre-lens) with some bits and black flocking previously removed from the film path. While I didn't get complete coverage, it still helped in scanning. So I decided to order about 8 sq ft (to have some extra for lens hoods, pinhole cameras, etc.) of low-pile acrylic felt, 0.030" thickness, self adhesive from http://www.mcmaster.com/. The product number (88015K73) came recommended on a site for flocking the interior of home made telescopes for reduction of light reflections. That was currently out of stock, but they replaced it with 45" wide material (as opposed to the original 48" wide). Does anyone have any experience with this particular material? Are there other sources for black flocking/felt that people have used or recommend? My plan is to line the complete light path from the mirror back to the CCD, and use some to hold the edges (sprocket hole area only) of the film in the light path, in order to achieve or more consistent vertical placement of the film for better focusing repeatability (the current holder guides alone leave a little too much slop in the film's vertical positioning, and can sometimes allow the film to not sit entirely flat). Thanks, Gerald - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
