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IRIX IFH-100 Filter Holder for 100mm Filters

BH #IRFH100 • MFR #IFH-100
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IRIX IFH-100 Filter Holder for 100mm Filters
Key Features
  • Fits Two 100mm-Wide, 2mm Thick Filters
  • No Vignetting on Ultra-Wide Lenses
  • Lightweight Aluminum Construction
  • Adapter Ring Required
This IFH-100 Filter Holder for 100mm Filters from Irix is a universal filter holder designed for 100mm-wide square filters. Its lightweight, compact construction allows the use of two filters without any vignetting effect. The construction of the filter holder allows for quick and easy attachment to the lens, along with free rotation around the optical axis when using graduated filters.

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IRIX IFH-100 Overview

This IFH-100 Filter Holder for 100mm Filters from Irix is a universal filter holder designed for 100mm-wide square filters. Its lightweight, compact construction allows the use of two filters without any vignetting effect. The construction of the filter holder allows for quick and easy attachment to the lens, along with free rotation around the optical axis when using graduated filters.

Note:
Required adapter ring not included and separately available.

IRIX IFH-100 Specs

Filter Capacity
2x 100 x 100 mm, 100 x 143.5 mm, 100 x 150 mm (2 mm Thick)
Material
Aluminum
Dimensions
5.4 x 5.1 x 0.6" / 137 x 130 x 16 mm
Weight
2.5 oz / 71 g
Packaging Info
Package Weight
0.265 lb
Box Dimensions (LxWxH)
5.8 x 5.8 x 1"

IRIX IFH-100 Reviews

Circular Polarizer use

By George
Rated 3 out of 5
Date: 2022-08-12

The IFH-100 will not work with the Irix 95mm Circular Polarizer and Plate filters at the same time. 95mm Circular filters up to 3.5mm max. will work but not the thicker Irix CPL.

Not compatible with Irix 95mm CPL

By George
Rated 1 out of 5
Date: 2022-08-11

This filter holder can't be used with Irix's own 95mm CPL filter. Their IFH-100 filter holder video states that it can be used with a 3.5mm max. circular filter (lens mounted) and 1 single 100x100mm 2mm thick filter in the holder. The Irix 95mm CPL is too thick. When the IFH-100 is installed on an Irix 15mm f2.4 Blckstone lens using the supplied hood mount adapter and a Irix 95mm CPL is screwed into the lens front filter mount, a single 100x100x2mm filter won't fit without fouling. Very poor design as making the IFH-100 Square filter mount 1mm or so higher would have solved this problem. I suppose this is why the Irix IFH-100-PRO filter holder was released. Unfortunately as of 11/8/2022 B&H don't stock it and won't do a special order for one. If you want to use Square filters with a circular CPL, the IFH-100 isn't for you. The Irix IFH-100-PRO is though as it comes with an intergrated Irix CPL with external adjustment. This is the ideal filter holder for an Irix 15mm f2.4 as it still mounts on the lens hood mount with the supplied Irix adapter and accepts 2 100x100x2mm filters as well as the intergrated CPL. Hopefully B&H will stock it in the future.

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If I mount this filter holder on an Irix 15mm ...

If I mount this filter holder on an Irix 15mm f2.4 lens using the Irix adapter for this lens (lens hood mount) and an Irix circular polariser in the lens filter screw mount, can I also use a 100x100mm 2mm thk ND filter in the holder?
Asked by: George
If the circular polarizing filter has front filter threads, you would be able to attach the filter holder and use an ND filter in the holder.
Answered by: Boyd H
Date published: 2022-08-16
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