Latest or all posts or last 15, 30, 90 or 180 days.
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$155 $100
SAVE $55

$2198 $1998
SAVE $200

$1799 $1599
SAVE $200

$999 $779
SAVE $220

$2397 $1897
SAVE $500

$1299 $949
SAVE $350

$799 $549
SAVE $250

$1499 $999
SAVE $500

$799 $549
SAVE $250

$2797 $2497
SAVE $300

$1997 $1797
SAVE $200

$549 $499
SAVE $50

$1699 $949
SAVE $750

$240 $175
SAVE $65

$3399 $2699
SAVE $700

$1100 $880
SAVE $220

Memory Upgrades for 2019 Mac Pro - Save Up to 65% vs Factory Costs

SHOOTOUT: Leica SL2 vs Panasonic S1R Sharpness with M-Mount Lenses: Piper Mountain Wilderness

re: Field Curvature for Zeiss ZM 35/1.4 Distagon, Mirrorless Cameras vs M-Cameras
re: MTF on Mirrorless Cameras, Sensor Cover Glass

The issue: ray angle interacts with the sensor cover glass thickness; a lens is designed assuming a specific thickness. Deviations from that thickness degrades optical performance, particularly off-center. A secondary issue is color shading, along with accentuated field curvature and astigmatism.

One would hope that the L-Mount alliance would have standardized on sensor cover glass thickness and characteristics, so that lenses of either brand could be used with the same results on either-brand camera. But in marketing, form trumps function.

Definitive finding for M-Mount lenses

This shootout between the Leica SL2 and the Panasonic S1R is definitive in proving major image quality differences between the SL2/S1R for M-mount rangefinder lenses, including sharpness and color shading and field curvature.

SHOOTOUT: Leica SL2 vs Panasonic S1R Sharpness with M-Mount Lenses: Piper Mountain Wilderness

Includes images up to full camera resolution from f/2 through f/8, plus crops.

Piper Mountain Wilderness abutting Death Valley Road
f1.4 @ 1/6400 sec electronic shutter, ISO 100; 2021-09-18 12:24:03
LEICA SL2 + Zeiss ZM 35mm f/1.4 Distagon
ENV: Piper Mountain Wilderness, altitude 5600 ft / 1707 m, 70°F / 21°C
RAW: vignetting corrected, pull 0.17 stops, +10 Whites, +10 Clarity

[low-res image for bot]

Roy P writes:

Not in the least surprised – this is the kind of garbage I got from the S1R using M lenses, which is why I returned the S1R to B&H, following my 3-day trip to Alabama Hills. Some of the multi-shot high-res images were also quite hideous. Stopping down to f/5.6 on the Zeiss 35/1.4 ZM and Leica 50/2 APO were not bad, but still, just not satisfactory.

TW, the guy who used to make the kit for the 6-bit coding no longer makes them. Any other way to fool the SL2 with a non-Leica lens? Maybe just hand-paint a pattern on the lens?!

DIGLLOYD: coder kit for M lenses is no longer made. You'll have to set the lens coding manually.


Best Deals, Updated Weekly
View all handpicked deals...

Sony FE 24-70mm f/2.8 GM Lens
$2198 $1998
SAVE $200

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2021 diglloyd Inc, all rights reserved.