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2024-03-21 FOR SALE: Leica 24mm f/3.8 Elmar-M ASPH, Leica 28mm f/2 APO-Summicron-M ASPH, Leica 90mm f/2 APO-Summicron-R ASPH

2023-05-06 Leica 28mm f/2 Summicron-M ASPH Examples: Backyard (Leica M11 Monochrom)

2022-02-02 Leica 75mm f/2 APO-Summicron-M ASPH Aperture Series: Pumpkins (Leica M11)

2022-01-31 Leica 75mm f/2 APO-Summicron-M ASPH Aperture Series: Persimmon Tree Trunk (Leica M11)

2022-01-25 Leica 28mm f/2 Summicron-M ASPH Dual Aperture Series: Bare Branches Riparian Tree (Leica M11)

2021-09-08 Shootout: Leica 28/2 APO-Summicron-SL vs Leica 28/1.4 Summilux-M, Leica 28/2 Summicron-M, Sigma 28/1.4 DG HSM Art: Popcorn and Pumpkins (Leica SL2)

2021-03-04 Leica 35mm f/2 APO-Summicron-M ASPH: My Initial 'Take'

2021-02-02 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Sulfur Mine Processing Gear (Leica M10 Monochrom)

2021-01-25 Leica 50mm f/2 APO-Summicron-M ASPH: Has Its Flare Control Been Improved after Six Years?

2021-01-22 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: View Over Alabama Hills to Lone Pine Peak and Mt Whitney (Leica M10 Monochrom)

2021-01-21 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: View Over Alabama Hills to Mt Whitney Range (Leica M10-R)

2021-01-07 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Lone Pine Peak and Mt Whitney Sunrise from Alabama Hills (Leica M10-R)

2019-04-12 Leica 28mm f/2 Summicron-M ASPH Aperture Series: Mosaic (Panasonic S1R)

2019-04-08 Leica 28mm f/2 Summicron-M ASPH on Panasonic S1R: Evaluating Applicability for Environmental Portraiture

2018-06-24 Leica 75mm f/2 APO-Summicron-M ASPH Aperture Series: Two Aspen

2017-09-02 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Gnarled Prostrate Bristlecone (Leica M240)

2016-07-19 Leica 50mm f/2 APO-Summicron-M ASPH in Silver Anodized Finish

2016-02-11 Compared: Leica 28mm f/2 Summicron-M ASPH (2016) vs Its Predecessor

2016-02-08 Leica v2016 28mm f/2 Summicron-M ASPHAssessment of Focus Shift at MOD

2016-01-29 Leica Data Sheet for MTF of Leica 28mm f/2 Summicron-M ASPH Error

2016-01-26 Leica Updates the 28mm f/2 Summicron-M ASPH and 28mm f/2.8 Elmarit-M ASPH

2015-10-24 Reviewed: Kolarivision-Modified Sony A7R II with Leica 50mm f/2 APO-Summicron-M ASPH

2015-01-19 Sony Kolarivision A7R.MOD: Performance with Leica 50mm f/2 APO-Summicron-M ASPH

2015-01-12 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Bleached Bristlecone Logs at Blue Dusk

2014-10-19 Leica 50mm f/2 APO-Summicron-M ASPH: Aperture Series 'Sagging Barn'

2014-07-25 Leica 50mm f/2 APO-Summicron-M ASPH: $900 Price Rise

2014-06-25 Leica 50mm f/2 APO-Summicron-M ASPH to Rise in Price by $900?

2014-06-22 Leica 50mm f/2 APO-Summicron-M ASPH: Evaluating Flare with Late 2013 Production Sample

2014-04-19 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Bikes at Night (Sony A7R + Sony A7R)

2014-04-18 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Mosaic (M240 + Sony A7R)

Lens Quality control

How good is Leica quality control?.

  1. QC: 50/2 APO-Summicron-M ASPH
  2. QC: 75/2 APO-Summicron-M ASPH

Leica 28mm f/2 Summicron-M ASPH (pre-2016)

Leica’s widest lens utilizing built-in frame lines..

  1. Notes: 28mm f/2 Summicron-M ASPH
  2. MTF: 28mm f/2 Summicron-M ASPH
  3. Distortion: 28mm f/2 Summicron-M ASPH
  4. Vignetting: 28mm f/2 Summicron-M ASPH
  5. Examples: Leica 28mm f/2 Summicron-M ASPH

Leica 28mm f/2 Summicron-M ASPH (2016)

Tweaked 2016 redesign..

  1. Overview of 28mm f/2 Summicron-M ASPH (2016)

Leica 35mm f/2 APO-Summicron-M ASPH

High performance moderate wide angle..

  1. Overview of Leica 35mm f/2 APO-Summicron-M ASPH
  2. MTF for Leica 35mm f/2 APO-Summicron-M ASPH
  3. Distortion for Leica 35mm f/2 APO-Summicron-M ASPH
  4. Vignetting for Leica 35mm f/2 APO-Summicron-M ASPH

Leica 35mm f/2 Summicron-M ASPH

Leica’s f/2 35mm for the M..

  1. Notes: 35mm f/2 Leica Summicron-M ASPH
  2. MTF: 35mm f/2 Summicron-M ASPH
  3. Distortion: 35mm f/2 Summicron-M ASPH
  4. Vignetting: 35mm f/2 Summicron-M ASPH
  5. Examples: 35mm f/2 Leica Summicron-M ASPH
  6. Comparison: Leica 35/2 Summicron-M vs Zeiss ZM 35/2 Biogon
  7. Comparison 2: Leica 35/2 Summicron-M vs Zeiss ZM 35/2 Biogon

Leica 50mm f/2 APO-Summicron-M ASPH

High performance but flawed 50mm normal lens..

  1. Notes: 50mm f/2 APO-Summicron-M ASPH
  2. MTF: 50mm f/2 APO-Summicron-M ASPH
  3. Distortion: 50mm f/2 APO-Summicron-M ASPH
  4. Vignetting: 50mm f/2 APO-Summicron-M ASPH

Leica 50mm f/2 Summicron-M

Leica’s compact low-distortion normal lens..

  1. Notes: 50/2 Summicron-M
  2. MTF: 50/2 Summicron-M
  3. Distortion: 50/2 Summicron-M
  4. Vignetting: 50/2 Summicron-M
  5. Examples: 50/2 Summicron-M
  6. Examples: 50/2 Summicron-M (Variety)

Leica 75mm f/2 APO-Summicron-M ASPH

Leica’s medium tele for Leica M..

  1. 75mm f/2 APO-Summicron-M ASPH
  2. MTF: 75mm f/2 APO-Summicron-M ASPH
  3. Distortion: 75/2 APO-Summicron-M ASPH
  4. Vignetting: 75/2 APO-Summicron-M ASPH

Leica 90mm f/2 APO-Summicron-M ASPH

Leica’s longer tele for Leica M..

  1. 90mm f/2 APO-Summicron-M ASPH
  2. MTF: 90mm f/2 APO-Summicron-M ASPH
  3. Distortion: 90/2 APO-Summicron-M ASPH
  4. Vignetting: 90/2 APO-Summicron-M ASPH

Sigma L-Mount

Sigma 28mm f/1.4 DG HSM Art.

  1. Shootout: Leica 28/2 APO-Summicron-SL vs Leica 28/1.4 Summilux-M, Leica 28/2 Summicron-M, Sigma 28/1.4 DG HSM Art: Popcorn and Pumpkins (Leica SL2)

Leica 28mm f/2 APO-Summicron-SL ASPH

Fast short wide angle lens for L-Mount cameras..

  1. Shootout: Leica 28/2 APO-Summicron-SL vs Leica 28/1.4 Summilux-M, Leica 28/2 Summicron-M, Sigma 28/1.4 DG HSM Art: Popcorn and Pumpkins (Leica SL2)

Lenses for Leica M8, Leica M9, M*

Lenses for Leica M cameras, especially the M9.

  1. Leica 28mm f/2 Summicron-M ASPH
  2. Leica 35mm f/2 Summicron-M ASPH
  3. Leica 75mm f/2 APO-Summicron-M ASPH

Sony Alpha A7R II Kolarivision for Leica M

A7R II modified sensor cover glass for Leica M lens performance..

  1. II Kolarivision Mod: Leica 50mm f/2 APO-Summicron-M ASPH

Olympus Zuiko SHG 14-35mm f/2 ED

Ultra high performance zoom lens..

  1. 28mm: Olympus 14-35/2, Leica 28/2 Summicron-M ASPH, Leica 28/2.8 Elmarit-M ASPH (Wyman Cabin)
  2. 35mm: Olympus 14-35/2, Leica 35/1.4 Summilux-M ASPH, 35/2 Summicron-M ASPH — Zeiss 35/2 Biogon (Wyman Cabin)


Blog posts, reverse chronological

2024

2024-03-21 FOR SALE: Leica 24mm f/3.8 Elmar-M ASPH, Leica 28mm f/2 APO-Summicron-M ASPH, Leica 90mm f/2 APO-Summicron-R ASPH

2023

2023-05-06 Leica 28mm f/2 Summicron-M ASPH Examples: Backyard (Leica M11 Monochrom)

2022

2022-02-02 Leica 75mm f/2 APO-Summicron-M ASPH Aperture Series: Pumpkins (Leica M11)

2022-01-31 Leica 75mm f/2 APO-Summicron-M ASPH Aperture Series: Persimmon Tree Trunk (Leica M11)

2022-01-25 Leica 28mm f/2 Summicron-M ASPH Dual Aperture Series: Bare Branches Riparian Tree (Leica M11)

2021

2021-09-08 Shootout: Leica 28/2 APO-Summicron-SL vs Leica 28/1.4 Summilux-M, Leica 28/2 Summicron-M, Sigma 28/1.4 DG HSM Art: Popcorn and Pumpkins (Leica SL2)

2021-03-04 Leica 35mm f/2 APO-Summicron-M ASPH: My Initial 'Take'

2021-02-02 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Sulfur Mine Processing Gear (Leica M10 Monochrom)

2021-01-25 Leica 50mm f/2 APO-Summicron-M ASPH: Has Its Flare Control Been Improved after Six Years?

2021-01-22 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: View Over Alabama Hills to Lone Pine Peak and Mt Whitney (Leica M10 Monochrom)

2021-01-21 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: View Over Alabama Hills to Mt Whitney Range (Leica M10-R)

2021-01-07 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Lone Pine Peak and Mt Whitney Sunrise from Alabama Hills (Leica M10-R)

2019

2019-04-12 Leica 28mm f/2 Summicron-M ASPH Aperture Series: Mosaic (Panasonic S1R)

2019-04-08 Leica 28mm f/2 Summicron-M ASPH on Panasonic S1R: Evaluating Applicability for Environmental Portraiture

2018

2018-06-24 Leica 75mm f/2 APO-Summicron-M ASPH Aperture Series: Two Aspen

2017

2017-09-02 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Gnarled Prostrate Bristlecone (Leica M240)

2016

2016-07-19 Leica 50mm f/2 APO-Summicron-M ASPH in Silver Anodized Finish

2016-02-11 Compared: Leica 28mm f/2 Summicron-M ASPH (2016) vs Its Predecessor

2016-02-08 Leica v2016 28mm f/2 Summicron-M ASPHAssessment of Focus Shift at MOD

2016-01-29 Leica Data Sheet for MTF of Leica 28mm f/2 Summicron-M ASPH Error

2016-01-26 Leica Updates the 28mm f/2 Summicron-M ASPH and 28mm f/2.8 Elmarit-M ASPH

2015

2015-10-24 Reviewed: Kolarivision-Modified Sony A7R II with Leica 50mm f/2 APO-Summicron-M ASPH

2015-01-19 Sony Kolarivision A7R.MOD: Performance with Leica 50mm f/2 APO-Summicron-M ASPH

2015-01-12 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Bleached Bristlecone Logs at Blue Dusk

2014

2014-10-19 Leica 50mm f/2 APO-Summicron-M ASPH: Aperture Series 'Sagging Barn'

2014-07-25 Leica 50mm f/2 APO-Summicron-M ASPH: $900 Price Rise

2014-06-25 Leica 50mm f/2 APO-Summicron-M ASPH to Rise in Price by $900?

2014-06-22 Leica 50mm f/2 APO-Summicron-M ASPH: Evaluating Flare with Late 2013 Production Sample

2014-04-19 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Bikes at Night (Sony A7R + Sony A7R)

2014-04-18 Leica 50mm f/2 APO-Summicron-M ASPH Aperture Series: Mosaic (M240 + Sony A7R)

2014-03-11 Shootout: Leica 28/2.8 Elmarit-M ASPH vs Leica 28/2 Summicron-M ASPH

2014-03-10 Shootout: Leica 28/2.8 Elmarit-M ASPH vs Leica 28/2 Summicron-M ASPH

2014-03-07 Leica 28m f/2 Summicron-M ASPH Aperture Series: Sharpness, examples

2013

2013-12-15 Leica 75mm f/2 APO-Summicron-M ASPH on Sony A7R (Pescadero Creek Redwoods)

2013-12-14 Leica 28mm f/2 Summicron-M ASPH vs 28mm f/2.8 Elmarit-M ASPH on Sony A7R (Pescadero Creek)

2013-11-25 Leica 75mm f/2 APO-Summicron-M ASPH: Flare Examples

2013-11-24 Leica 75mm f/2 APO-Summicron-M ASPH: Aperture Series (DeChambeau Yellow Trailer)

2013-11-23 Leica 75mm f/2 APO-Summicron-M ASPH: Aperture Series (Two Aspen in Lundy Canyon + Grassy Log Waterfall)

2013-11-19 Mono Lake Panorama with Leica 75mm f/2 APO-Summicron-M ASPH

2013-11-14 Leica 75mm f/2 APO-Summicron-M ASPH

2013-09-15 Leica 50mm f/2 APO-Summicron-M ASPH: Update on the Flare Issue—Leica Confirms “4 Minor Issues” with respect to Lens Flare

2013-09-02 Leica M Typ 240 + Leica 50mm f/2 APO-Summicron-M ASPH: Rangefinder Maladjustment

2013-08-15 Leica 50mm f/2 APO-Summicron-M ASPH Update on the Flare Issue

2013-08-12 Leica 50mm f/2 APO-Summicron-M ASPH: Examples (Bristlecones)

2013-08-12 Leica 50mm f/2 APO-Summicron-M ASPH: Circular Ring Flare

2013-08-12 Leica 50mm f/2 APO-Summicron-M ASPH: Aperture Series (M240, Wyman Cabin Table)

2013-08-12 Leica 50mm f/2 APO-Summicron-M ASPH: Aperture Series (M240, Wyman Cabin Table)

2013-08-04 Leica 50mm f/2 APO-Summicron-M ASPH: Will Leica Address the Flare Issue?

2013-08-04 Leica 50/2 APO-Summicron-M ASPH vs 50/0.95 Noctilux-M ASPH: Orange Bark Pine, Yosemite (Leica M240)

2013-07-17 Leica 50mm f/2 APO-Summicron-M ASPH: Tuolumne River Aperture Series (Leica M Typ 240)

2013-07-04 Leica M Typ 240: Examples with 50mm f/2 Summicron-M ASPH

2013-07-04 Leica 50mm f/2 APO-Summicron-M ASPH: Bokeh / Blur

2013-06-28 Leica M Typ 240 + Leica 50mm f/2 APO-Summicron-M ASPH: Distant Landscape f/2 - f/16

2013-06-28 Leica 50mm f/2 APO-Summicron-M ASPH vs 50mm f/0.95 Noctilux-M ASPH

2013-06-25 Flare Control with Leica M Lenses and Especially the Leica 50/2 APO-Summicron-M ASPH

2013-06-12 Leica 50/2 APO-Summicron-M ASPH: Concentric Flare Rings Plausible Explanation

2013-06-11 Leica 50mm f/2 APO-Summicron-M ASPH Packaging

2013-06-08 Reader Comment: Leica 50mm f/2 APO-Summicron-M ASPH vs Noctilux-M ASPH

2013-06-07 Leica 50mm f/2 APO-Summicron-M ASPH on the way

2013-04-25 Leica M Monochrom with Leica 50mm f/2 APO-Summicron-M ASPH: Study of Focus

2013-04-22 Leica 50/2 APO-Summicron-M ASPH: Flare Control

2013-04-20 Leica M Typ 240 50mm Shootout: Leica 50mm f/2 APO-Summicron-M ASPH vs Others

2013-04-20 Leica 50/2 APO-Summicron-M ASPH: Onions and Ginger Still Life

2013-04-10 Leica M Monochrome with Color Filters and Leica 50mm f/2 APO-Summicron-M ASPH

2013-04-09 Leica M Typ 240 / M240 and Leica 50mm f/2 APO-Summicron-M ASPH: Testing Begins

2013-04-09 Close Range Performance with Leica 50mm f/2 APO-Summicron-M ASPH

2013-04-06 Leica 50mm f/2 Summicron-M Needed for Testing / Comparison

2013-04-03 Leica M Typ 240 / M240 and Leica 50mm f/2 APO-Summicron-M ASPH

2013-02-15 Leica 50mm f/2 APO-Summicron-M ASPH

2013-01-05 Leica 50mm f/2 APO-Summicron-M ASPH Delivery Date Hint

2012

2012-11-28 Delayed Delivery: Leica 50mm f/2 APO-Summicron-M ASPH

2012-11-12 Leica 50mm f/2 APO-Summicron-M ASPH Delayed until March 2013?

2012-10-27 Leica 50mm f/2 APO-Summicron-M ASPH — Soon?

2012-07-14 Reader comment: new Leica 50mm f/2 APO-Summicron-M ASPH

2012-07-13 Leica M Monochrom and Leica 50/2 APO-Summicron-M ASPH

2012-06-02 Leica M Monochrom and Leica 50/2 APO-Summicron-M ASPH

2012-05-10 Leica 50mm f/2 APO-Summicron-M ASPH

2011

2011-12-01 Reader Asks: Color Asymmetry with Leica 35mm f/2 Summicron-M ASPH

2011-06-13 Leica 50mm f/2 Summicron-M Compared to Leica 50mm f/0.95 Noctilux-M ASPH

2011-06-12 Leica 50mm f/2 Summicron-M Examples

2011-06-11 Leica 50mm f/2 Summicron-M Aperture Series Analysis

2011-06-08 Leica 50mm f/2 Summicron-M for Leica M9 Rangefinder

2011-05-30 Leica 50mm f/2 Summicron-M

2010

2010-04-18 Leica 28mm f/2 Summicron-M ASPH review published

2010-03-10 Leica 28mm f/2 Summicron-M ASPH

2010-02-14 Leica M9 review: examples and more with Leica 75/2 APO-Summicron-M + Zeiss ZM 25/2.8 Biogon

2010-02-05 Leica 75mm f/2 APO-Summicron-M ASPH for Leica M9

2010-01-31 Leica 75mm f/2 APO-Summicron-M for Leica M8/M9/M

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