B W Red Filter 55A mm F-PRO from B+W
Boxed product Weight : 59 g
Date first available : 25 Jan 2011
Product Dimensions : 9 5 x 9 5 x 2 2 cm 40 8 g
Item model number : 65-072094
B + W Red Filter 55A mm F-PRO
#Filter #55Amm #F-PRO Size Name strong 55 mm strong Product Description Compared to the lighter 090 red filter this one even darkens the reds near the yellow tones in the spectrum as its transparency only begins in the orange-red region It produces dramatic effects and extreme tonal separation for graphic effects That accounts for the large filter factor of appr 8 b Single Coating b Each glass surface is vacuum coated with one layer of Anti-Reflection coating This single layer helps to prevent internal ghosting and reflections It also improves light transmission from approximately 92 uncoated glass to over 98 This filter uses our standard B W F-Pro filter mount which has a front accessory thread and is made of brass Compared to the earlier standard mount introduced in 2001 the F-Pro mount has become thinner Now it can be used with wide angle lenses including most 24mm focal lengths on a full frame body without vignetting Another advantage of the F-Pro mount is it s modified retaining ring which is no longer threaded in from the front but holds the filter glass in place from the back When removing a filter or lens hood that has been screwed on too tight to the filter the retaining ring is not at risk of loosening NOTE diopters are mounted in the older mount due to glass thickness b Otras caracterA sticas b b Colour of product b Black b Filter size b 5 5 cm Filter, 55Amm
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