Some additional information on the new MS Optics Fluorit Super Apochromat Aporis 135mm f/2.4 full frame lens for Leica M mount (the lens is currently available for pre-order). There are two versions of the lens: one for Leica M cameras (coupled) and one for other mirrorless cameras (not coupled). Here is how Mr. Miyazaki came up with the idea for this lens:
Seven years ago, I designed an objective lens for a telescope that utilized fluorite glass. This experience taught me just how amazing this kind of glass is for correcting color aberrations. Thanks to the goodwill of Canon Optron, I too can now utilize this kind of glass.
I researched the fast 135mm focal length, which is the type of lens for which the most benefit can be expected, and after much effort designing something based on the low nd of 1.43, I decided to use an Ernostar optical design with its minimal coma. The front element is a large thick piece of fluorite to realize a high performance lens with a maximum aperture of f/2.4.
Leica M mount lens (coupled):
Non-focus coupled version (for cameras with live view):
Specifications:
More MS Optics lenses can be found here. MS Optics lenses can be purchased at:
