You do need to spend quite a bit of time getting the cameras adjusted to get the minimum keystone effect. It would certainly be worth trying the goose-neck camera supports. I think you just need patience and to spend some time getting the camera position right - or as right as you can.elwi wrote:
the alignment of the cameras on the camera support arms is really giving me hard times. I get a lot of keystone in every possible position. I have tried and tested every possible position but I think there is no perfect one. The platen hanger position interferes with the camera support arm position but I need both at those positions exactly where they are since the platen hangers are perfect for the platen balancing and the camera support arms so that the cameras point at the center of the book.
Therefore I am thinking about buying two goose-necks and applying them on the sides of the base frame similar to the goose-neck used in this thread http://www.diybookscanner.org/forum/vie ... ?f=1&t=698,
I have illustrated how to:
I think you will certainly need to use post-processing to correct any remaining keystone effects. Can Ii recommend that you have a look at YASW. This is a free keystone correction and picture trimming package. I've made a YouTube video showing how to use it, and you can look at it here
http://youtu.be/__a9urAtQD4
David Landin