- Ultra thin frame to minimise vignetting on wide angle lens
- Nano coating for best light transmission
- Highly smooth glass surface
The NiSi 40mm Pro Nano HUC Protector filter is designed to provide the best protection from dust or impact to the front element for camera lenses. Made from high quality glass with nano coating on both sides, the Nisi Pro Nano HUC protector filter allows 99.3% of light pass through it. The frame is made of high quality aluminum with thickness of only 5.2 mm. Additionally, superfine dull polishing and elaborate knurling make sure that the frame will not blanch because of repeated rotation; this ultra thin filter frames to help avoid vignetting on super wide angle lenses.
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