Very rare MS Optics non-rangefinder lens Leica M mount built for mirrorless cameras. Made by Sadayasu Miyazaki in Japan. There seems to be a screw missing and the middle of the lens turns, not sure it is supposed to. The focus and coma adjustment parts turn ok, the middle of the lens makes noise when it turns.  The inner threads seem sticky.  I was going to see if MAP camera could repair it, decided to sell it instead. Selling as is.


MS Optics original design Fluorit Super Apochromat Aporis 135mm f/2.4 Full MC rangefinder lens in Leica M and T mount. Initial lot of lenses, designed, manufactured and hand-assembled in Japan by Mr Sadayasu Miyazaki.

Key features:

  • 6 elements in 4 groups Ernostar (Cooke Triplet derivative) formula lens
  • Adjustable coma control
  • Weight just 380g, 117mm long, 60mm diameter (without hood))
  • Minimum focus distance 1.6m on Leica M
  • Optimized for minimal spherical aberration
  • Native Leica M mount, without rangefinder coupling (for use on mirrorless cameras)
  • Anodised aluminium in black finish

Specifications:

  • Spherical aberration: -0.15 (extremely good)
  • Astigmatism: -0.11 SM
  • Distortion: +-0.2 (1.6m to infinity)
  • At f/2.4 fully open aperture, contrast is high across the entire image plane (image at 15m)
  • At f/4 – f/5.6 image quality is extremely good