Designed for all large format lenses and shutters, this catLABS Spanner Wrench is used to tighten and loosen retaining rings and is compatible with #01, #1, and #3 shutter sizes.
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Key Features
- Shutter Sizes: #01, #1 & #3
Designed for all large format lenses and shutters, this catLABS Spanner Wrench is used to tighten and loosen retaining rings and is compatible with #01, #1, and #3 shutter sizes.
CatLABS CLWS Overview
CatLABS CLWS Specs
Packaging Info
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CatLABS CLWS Reviews
Not A Total Waste Of Money But Close
By Lionel
Rated 2 out of 5
Date: 2025-11-19
It Worked Okay On #0s, I Had To Force It To Make It Fit. It Doesn't Even Come Close On #1s. Like, In No Way Shape Or Form Will You Get It To Fit. I'm Waiting For Another Tool To Arrive So I Can Change A Lens. Haven't Tried It On #2s Yet But I'm Doubting It'll Be The Perfect Tool For Those Either. I've Purchased Another Tool To Do This Job So Hopefully That Will Work.
Exactly as advertised
By Lockhart
Rated 5 out of 5
Date: 2023-12-07
This wrench fit both my copal 0 and copal 1 lenses perfectly.
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Is this spanner to be used for tightening the ...
Is this spanner to be used for tightening the shutter ring before screwing in the rear element of the lens?
Yes, this Catlabs Large Format Lens Shutter Spanner Wrench can be used to tighten the shutter ring before screwing in the rear element of a large format lens.
Date published: 2022-03-23