B + W 72 Infra-Red Filter: Picture 1 thumbnail B + W 72 Infra-Red Filter: Picture 2 thumbnail B + W 72 Infra-Red Filter: Picture 3 thumbnail

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About B + W 72 Infra-Red Filter

B & W offers three filters for infrared photography, each with its' own unique features.

• This dark red filter is primarily for black and white infrared films.
•It filters out light below 650 nm.
• With color infrared film it produces pictures of a pure red image while making good use of the relatively low sensitivity of infrared films.
• Filter factor is approx. 20 - 40.

• This black infrared filter will filter out the entire visible spectrum.
• It is used with black and white infrared films with a sensitivity up to 1000nm.
• Filter factor is determined by the film sensitivity.

• This orange colored filter blocks the blue and blue-green portion of the visible spectrum up to 500 nm.
• It reduces the excessive sensitivity of color infrared films in this spectral range, separates colors more evenly thereby avoiding a blue tint.
• Filter factor depends upon the film's sensitivity.

B + W 72 Infra-Red Filter Reviews

Reviewed by 1 customers

(4 of 4 customers found this review helpful)


Filter on Olympus E-Volt 520


from Herdnon, VA  -  Photo Enthusiast

Filter does as advertised with the high quality I've come to expect from B&W Filters. Both pictures were taken with an Olympus E-520, ISO-100, F/2.8, Focal Length = 12mm. The first, the reference picture, the shutter speed was 1/250 sec. The second, the IR picture using the B&W 092 filter, the shutter speed was 3 seconds. This gives an overall filter factor of 750. Taking into account the advertised 20 to 40 filter factor for the filter this leaves the internal E-520 IR blocking filter with a factor of 25. Bottom line, IR photography is possible with a E-520 using this filter if the camera is mounted on a tripod.

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