B + W 62mm 420 Slim Mount Filter, Light Yellow 2E
B + W 62mm #420 Wide Angle Slim Mount Glass Filter
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Due to the slight yellow coloring of this filter, it is designed for aerial photography with black and white film.
Filter factor is approx. 1.2
- Thin construction with ultra thin optical glass. Used to prevent vignetting with today's larger wide angle lenses.