Latest or all posts or last 15, 30, 90 or 180 days.
Memory Upgrades for 2019 Mac Pro - Save Up to 65% vs Factory Costs
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$2799 $2549
SAVE $250

$1499 $1399
SAVE $100

$1499 $1399
SAVE $100

$7999 $7249
SAVE $750

$2799 $2599
SAVE $200

$250 $220
SAVE $30

$399 $269
SAVE $130

$1199 $1099
SAVE $100

$799 $599
SAVE $200

$999 $949
SAVE $50

$1099 $999
SAVE $100

$1999 $1499
SAVE $500

$1349 $1149
SAVE $200

$1099 $999
SAVE $100

$2799 $2549
SAVE $250

$449 $389
SAVE $60

$400 $310
SAVE $90

$1699 $999
SAVE $700

Leica 35mm f/1.4 Summilux-M ASPH: Field Curvature and Focus Shift on a Planar Subject

This extensive comparison incorporates MTF and relates it to a planar subject. And why the 35/1.4 Summilux is a disappointment for any geometrically planar image, which includes a distant landscape.

An aperture series in whole stops or half stops is provided at retina-grade size for the entire frame as well as the generously sized crops. Analysis of both the focus shift and field curvature is related to offsets as suggested by the MTF chart.

Field Curvature and Focus Shift on a Planar Subject with the Leica 35mm f/1.4 Summilux-M ASPH (Leica M Typ 240)

While this discussion uses the 35/1.4 Summilux, many fast Leica wide angle lenses exhibit similar behavior and thus it should prove instructive in establishing the best working technique for a variety of lenses.

Peeling green paint
Leica M Typ 240 + Leica 35mm f/1.4 Summilux-M ASPH @ f/2.8

Save the tax, we pay you back, instantly!
View all handpicked deals...

Apple 13.3" MacBook Pro M1 Chip with Retina Display (Late 2020, Silver)
$1499 $1399
SAVE $100

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.