Female side - M27x0.5 (Spiratone fish-eye 0.15x attachment)
Male side - Nikon F mount
Max. diameter - 60 mm
Distance between flanges - 3.5 mm
Weight - 28 g
This adapter allows using lenses with M27x0.5 thread (like Spiratone fisheye attachment) on Nikon-F cameras or extension tubes/bellows. But you'll not get focused image with it since this attachment is purposed to be used with a lens, not standalone. May be you'll find such adapter some application.
Made of anodized aluminium.
For sale is the adapter only. Attachment is pictured for illustration purposes.
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