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The Story Behind OLJ LUX 

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The idea for OLJ LUX started with a very simple problem: I could not find the filter I needed.

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Several of my Zunow 5cm F1.1 lenses use an unusual 54.5mm filter thread. The only filters I found that fitted properly were old Bell & Howell 54.5mm filters.

For a while, I was lucky. I managed to buy a few through Yahoo! Auctions Japan. But they were already uncommon, and eventually I reached the point where there were simply none available when I looked.

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That was the moment I decided to make one.

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Rather than wait for another old filter to appear, I began developing a new 54.5mm filter specifically for the Zunow 5cm F1.1.

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From there, the idea grew naturally. I am also developing a 54.5mm-to-62mm step-up ring, allowing compatible Zunow lenses to use 62mm filters and the OLJ Type 2 lens hood system. A 62mm OLJ LUX filter is planned as the companion size.

OLJ LUX is not intended to become a huge range of generic filters. The idea is to make useful filters and accessories for classic lenses where the right parts are becoming difficult to find.

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Like many Old Lens Junkies projects, it began with something I wanted for my own lenses — and could no longer buy.