Heliopan Rollei Bay 6 Infrared Blocking Filter (645nm)

Heliopan Rollei Bay 6 Infrared Blocking Filter (645nm)

Heliopan Rollei Bay 6 Infrared Blocking Filter (645nm)

B&H # HEIR645B6 MFR # 760069
Heliopan Rollei Bay 6 Infrared Blocking Filter (645nm)

Heliopan Rollei Bay 6 Infrared Blocking Filter (645nm)

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Important Notice: This item is non-cancelable and non-returnable
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Expected availability: 6-8 weeks 
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Not eligible for Free Expedited Shipping

Product Highlights

  • Blocks IR Below 645nm
  • Provides Sharper Images / Better Color
  • Suitable for Digital or Film Photography
  • Tonal Separation Lines More Distinct
  • Slimmer Front Filter Mount Design
  • Rugged Black Brass Filter Ring
  • Schott Glass
  • Lifetime Warranty
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  • 1Description

The Rollei Bay 6 Infrared Blocking Filter from Heliopan block the infrared spectrum below 645nm. It is designed for use with black and white and color films that are sensitive to certain values of infrared light not visible to the human eye. Using traditional contrast filters such as a yellow 12, red 25 or green 15 will produce a color shift which may not be desired in the final image. Greens may become blue, red becomes green and yellow becomes blue/green and infrared becomes red.

CMOS and CCD sensors and chips are very sensitive to infrared light because of the coatings on these surfaces. Even if your camera has a built-in IR filter, there can be noticeable color shifts or incorrect exposures due to any number of factors. However, Heliopan provides specific filters that completely block infrared rays resulting in more precise color control. In order to achieve correct exposure, testing is strongly recommended since infrared contamination can vary depending on time of day and the conditions under which you are shooting. It should be noted that for digital landscape pictures Heliopan recommends the R715 to RG830 filters. In the black and white mode you can see the proper exposure in the camera display. In the color mode you can see it in the histogram display. This applies especially for the red channel.

The reputation of Schott glass is world renowned. The high production standards combined with a sturdy brass filter ring make Heliopan filters hard to beat. These filters have a "heft" to them that is impressive. They may feel heavier but the benefit is in the construction and results. Not only is the glass exceptional but so is the seal between the ring and glass. Schott Glass used in the manufacture of this filter is legendary and synonymous with the highest standards of filter production.

The filter ring is made from brass yielding a stronger product. Brass filter rings are also less prone to jamming. In addition, the seal between the glass and filter ring is exceptionally strong giving the filter added strength and durability.

Heliopan has been a leader in the filter industry since 1949. They are known for their high quality and production standards. Their slim mounts facilitate using them with wider angle lenses. Heliopan offers most of their filters with either their standard hard coating or with their industry leading SH-PMC 16 layer multi-coating that transmits over 99.5% of the light striking it on to the image plane for the lowest flare and greatest color saturation.

This filter is specific to lenses with Rollei's Bay 6 filter size.

Heliopan machines their filter rings from quality brass tubes and black anodizes and silk screens them in their factories in Bavaria
Minimal reflections on digital sensors because of the matte black filter rings
At least one high-quality hard coating on each filter side to reduce stray light, to maintain high contrast and to avoid flare (Reflections are reduced from 8% to only 2.5% for each glass to air surface on each side of the filter)
In the Box
Heliopan Rollei Bay 6 Infrared Blocking Filter (645nm)
  • Storage Case
  • Lifetime Warranty
  • Table of Contents
    • 1Description
    Type Infrared blocking
    Size Rollei Bay 6
    Grade 645nm
    Filter Factor Depends on various shooting factors - lighting, etc
    Multi-Coated Not Applicable
    Rotating Not Applicable
    Effect Blocks any IR below the value of the filter
    Application Infrared photography
    Color Temperature Not Applicable
    Construction Schott glass
    Front Filter Thread Size Rollei Bay 6
    Front Lens Cap Size Rollei Bay 6

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