Used Samyang 800mm f8 Mirror lens in Pentax fit - 1 YEAR GTEE
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Shooting the Moon with a Mirror Lens and a Tiny Camera - Pentax Q + 500mm Lens - YouTube
Used Samyang 800mm f8 Mirror lens in Pentax fit - 1 YEAR GTEE
Tokina 500mm f8 Mirror Pentax K Fitting Lens – MrCad Online Store
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Pentax 67 Mirror Up Body with Polaroid Back – MrCad Online Store