Quote:
Originally Posted by Sunfish
You might try my fishing line model which works very well on 100mm F8 lense. As shown in the attached image. Also see a version made by the Avertons which is the same thing fine tuned and they provide a dxf file. I will se if I can find a PDF.
http://www.iceinspace.com.au/forum/s...7&postcount=27
With a refractor the bars and spacing needs to be as fine as you can, 1 mm bars or fishing line is ideal. I posted a dxf in that thread.
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That is a VERY neat solution.
I've found that chunky line bahtinov masks didn't make things as easy to focus as I would have liked when using a camera lens (the panasonic leica 100-400mm, and olympus 40-150 f2.8) with live view between 5x and 14x.
I'm going to try the fishing line mask for my camera lenses. Hopefully I get better results.
If the mask I have sent to print for my RC8 doesn't work out, I will definitely be trying out your fishing line method for that too.