Happy with adjustments on getting even spread of light for 35mm, which maybe because of its size really shows hotspots and darker spots in 1:1 printing. With 16mm you dont need the diffuser. btw you get high quality diffuser sheets with minimal ND value inside flat screens, pc monitors. Take them apart and get the diffuser out, good stuff!
The diagram shows where the diffuser filter is best placed, nearest to the condensor element which itself must be adjusted fwds-bwkds to produce a light spread that covers the diffuser best. The lamp also can be adjusted left and right to centre which can be done by eye.
The comparison of before and after is staggering. The after is obviously the one on the bottom where eveness of light exposure is really apparent.
Massive result in setting light eveness for 35mm
full optical printer head view
