[Leica] 75mm f/2 M-mout lens -- outstanding

[Paul Roark]

A sample image of the corner of the 75mm image, taken at f/2, is shown at
https://www.paulroark.com/75mm-Apo-Summicron-f2-corner.JPG .  I've also
posted a comparison shot of what Topaz Gigapixel AI does to improve the
corner slightly.

Paul
www.PaulRoark.com

On Wed, Mar 18, 2020 at 3:23 PM Paul Roark <roark.paul at gmail.com> wrote:

> As we would all expect, the new Apo-Summicron is so good that the corners
> even at f/2 are excellent.  When files are opened in Photoshop with the
> color fringing option activated, the image is nearly perfect.  However, if
> then processed with Gigapixel AI you get perfect sharpness corner to corner
> even at f/2.  (Gigapixel AI does sharpen it off axis, noticeable mostly on
> the monitor at 200% magnification.  The main thing the sharpening software
> does is extend effective DOF a bit.)  This lens deserves the Leica
> "Apo" label without question.  (I'm using it with a Sony a7r4, modified
> with the KoloriVision Ultra Thin cover-glass.)
>
> The 28 and 75 are my traveling duo. (Anyone want an older 75 f/2.5 cheap?)
>
> FWIW,
>
> Paul
> www.PaulRoark.com
>