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Home > Classifieds > Astromart Classifieds > Misc & Other Astronomy > Classified #171053

Wanted: Looking for an iris diaphram of some sort

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I wish to mount a diaphram of some sort to the front on my 102mm f16 refractor which is used for sloar prominence. I wish to use it to experiment with stopping down the aperture and therefore increasing f ratio. It needs to open to at least 65mm. What might you have? Fred Tretta

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