In addition to the Staeble-Telexon E 85/5.6, I have another lens for the Braun [Super] Paxette II.
The Staeble-Werk Choro R 1:4,5/35 from the 1950s.
But my copy is strange. First, it is not as tiny as I expected after seeing photos of its more famous brother, the Choro 38/3.5. Second, the flange focal distance of the copy is 28.8mm instead of the expected 44mm. I noticed this immediately during test shots.
The letters R (no coupled rangefinder support) or E (coupled rangefinder support) for the Staeble-Werk lens refer exactly to the Braun M39x1 (44mm) versions, while the Leica M39x1 (28.8mm) versions are usually marked with the letter L.
So it is the Braun M39x1 version that is adapted for the Leica M39x1. It has installed an M39x1 extension tube with exactly the right length of 15.2mm:
In addition, an extension is attached to the back of the lens. It looks like a part for the [Leica] coupled rangefinder, but it is not, because its stroke and length do not meet the requirements (for a 35mm lens).
This extension doesn't allow the lens to be mounted on Braun cameras. Unfortunately I couldn't remove this extension, I don't want to break the lens. But I only use the lens with the extension tube 15.2mm, so I left everything as it is for now.
This lens is very rare, I haven't found any mention of it in catalogs or manuals. I've even seen an opinion that such a lens doesn't exist. But it does exist, I've seen modern photos of the lens on the internet a few times, but without any comment. Now I have this lens as well.
I think (because of the name "Choro") it is a triplet: 3 elements in 3 groups. Most likely a Cooke triplet:
And it's not just a triplet, but a wide-angle triplet. A rare thing among interchangeable lenses.
This is my second triplet lens after the Anastigmat Victar 50/2.9.
The focusing scale is in feet only. The minimum focusing distance is about 2.5 feet (~0.76m). This was a cheap lens, so the entire front part rotates when focusing, along with the aperture ring.
The aperture has 10 blades:
The clickless aperture ring, with marked positions: f/4.5, f/5.6, f/8, f/11, f/16, f/22.
Because the lens is non-retrofocus and slow, it's compact even with the extension tube. It is my smallest 35mm lens:
The lens needed a little repair, but like the Telexon, it is very easy to disassemble, and the lack of coupled rangefinder support makes reassembly easier.
See also related notes:
- My triplet lenses (2024-08) (2024-08-27)
- Staeble-Werk Choro R 35/4.5: Samples [3] - M4/3 - f/4.5 (2024-07-18)
- Staeble-Kata E 45/2.8 (M39x1/44): Standard triplet for Braun Super Paxette II (2024-06-24)
- Staeble-Werk Choro R 35/4.5: Samples [2] - APS-C - f/4.5 (2024-06-13)
- ISCO Iscovitar 50/2.8 (M42x1/45.5): Triplet with simple focusing mechanism (2024-05-21)
- Staeble-Werk Choro R 35/4.5: Samples [1] - APS-C - f/4.5 - "color shift" (2024-05-16)
- Leica M-M4/3 adapter (2024-05-12)
- Staeble-Lineogon 35/3.5 (M39x1/44): Retrofocus evolution of a triplet (2024-04-27)
- Staeble-Telexon 135/3.8 (M39x1/44): The lens for the Braun Super Paxette II (2024-03-26)
- Staeble-Werk Choro R 35/4.5: Lens cap replacement (2024-03-16)
- Staeble-Werk Choro R 35/4.5: Lens restoration (2024-02-03)
- M39x1-Samsung NX adapter (another one) (2024-01-29)
- Braun Super Paxette II BL: Film rangefinder camera (2024-01-13)
- Staeble-Werk Choro R 35/4.5: My experience [3/3] (2023-12-13)
- Staeble-Werk Choro R 35/4.5: My experience [2/3] (2023-12-11)
- Staeble-Werk Choro R 35/4.5: My experience [1/3] (2023-12-09)
- Lenses without cemented elements (2023) (2023-10-12)
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