Anyone have any thoughts on using these in our setups? I have seen them go for 10 bucks online for a 4 inch one? Im thinking I may try this as My HQI I think Is looseing a lot of light do to how tiny the reflector is in My OHP. any Ideas on weather it would or wouldnt work?



I was thinking along the same lines, but not a flat parabolic mirror, just a larger concave mirror. I found some here at pretty good prices.:
http://www.microscope.org/l-optics/sl240.htm
http://www.microscope.org/l-optics/sl240.htm
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