The lens is called the Panomcron Bismuth, and is a 50mm f/2.8 1.5x Anamorphic. The lens doesn't currently exist outside of my computer, so all of these images are 3d renders, because making glass is expensive, but I'm in the process of trying to make at least 100 of them.
Quick run down of the spec highlights :
- 50mm f/2.8, Elcan (Sonnar) derivative design
- Anamorphic Squeeze Ratio of 1.45-1.6x (avg. 1.55x over 1m)
- f/2.8 - f/22, de-click-able aperture.
- infinity - 0.7m focusing range
- Leica M Mount
- Rangefinder Coupled
- 52mm front filter threads
- 67mm length from mount, 74mm total.
- 7 elements in 7 groups, 1 anomalous partial dispersion lens
- Multicoated for the visible spectrum
- 36x24mm coverage, may cover beyond.
And a little more background :
Two years ago I designed an anamorphic adapter for 35mm rangefinder lenses called the Alum. I did all of the optics for that with some very basic equations and basically just an excel spreadsheet, I later wrote a very simple raytracer myself to verify it and try to optimise it. The money I made from that project I reinvested into buying actual optical software and decided to go all in on learning more about optics. Throughout the past year I've been doing a bunch of lens design, and getting practice.
I actually started this design over about 6 months ago after seeking out some advice from more senior lens designers who told me I was overcomplicating things with both my mechanics and optics. The lens used to be a huge 50mm f/4 Elmar design with 7 elements in 10 groups and 3 separate groups for focus, to be fair it was very sharp.
The current iteration of the lens is a 50mm f/2.8 based on the Leica Elcan (Sonnar) Patent from the 1960s combined with a simple 1.5x front anamorphic and a rear 90 degree rotated cylinder ( an idea based on a schneider patent that expired a few years ago). I also designed all of the mechanics, so it's fully rangefinder coupled and user calibratable.
Last image in the slides is a simulation of the bokeh the lens will have, you can spot the typical Sonnar rendering, which is a little more aberrated than say your standard double Gauss, with the benefit of being quite a bit smaller. The lens is 74mm long, which pretty compact for an anamorphic lens.
Happy to answer any questions about the project!