21st April 2010, 12:19 PM
Lens/Scanner Test chart
I thought of selling a way some extra chart/target etc, but I receive far more question than any thing. I give some technical tips here:
for camera/lens test:
1- Make certain that all lens covers the same size area
2- test target lighted evenly
3- use a tripod
film or digital you should be able to check your image with 10-20x lupe for aberrations, resolution/distortion and colour fringe.
for scanner test
1- scanner should be switched on for 15 minutes
2- scan with your usual setting
inspect your image in any image editing program, you will find out the true optical resolution, luminance balance, gray balance.