I wasn't happy with the way the lens focused... that's not it... I didn't have a build are big enough to build the kind of things I was after. so I took the lens unit out and messed around a little bit. It seem that by moving the built in optics forward around 2 mm in my case I was able to focus the pixels almost exactly to .1mm. Actually between the throw and focus I can get a variety of resolutions. From about 44 mm X 33 mm (.044mm per pixel) all the way out to 110 mm x 82 mm (.11mm ppx).
The macro lens I had is unnecessary.
I will need to make a collar or something to set it in place properly there's a little bit of wiggle with the screws in place and it would be nice if I could adjust it. The depth of field? if that's the right term is very short it is only in focus within a very small distance, and the throw length? distance from projector to the focused image is now 16.5cm when zoomed out and 9cm or so when zommed in
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in place with the 2mm offset
Much damage to the case from trying to fit unneeded optics |
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| The optics unit |
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| The dmd and light prism |
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| The optics unit part way in place |
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