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2024-04-14 Leica SL3: Unstable Lens Focus with Leica 75mm f/2 APO-Summicron-SL ASPH and Leica 90mm f/2 APO-Summicron-SL ASPH

2024-04-13 Leica SL3 + Leica 75mm f/2 APO-Summicron-SL Aperture Series: Deck and Roof

2024-04-10 Leica SL3 + Leica 50mm f/2 APO-Summicron-SL Aperture Series: View from Russian Ridge to South Bay

2024-04-10 Leica SL3 + Leica 28mm f/2 APO-Summicron-SL Aperture Series: View from Russian Ridge to South Bay

2024-04-09 Leica SL3 + Leica 35mm f/2 APO-Summicron-SL Aperture Series: View from Russian Ridge to South Bay

2024-04-08 Leica SL3 + Leica 35mm f/2 APO-Summicron-SL Aperture Series: Deck and Roof

2024-04-07 SHOOTOUT: Leica SL3 + Leica 50/2 APO-Summicron-SL vs Sony A7R V + Voigtlander 50/2 APO-Lanthar: Deck and Roof

2024-04-05 Leica SL3 + Leica 28mm f/2 APO-Summicron-SL Aperture Series: Forest Tree Trunks

2024-04-03 SHOOTOUT: Leica SL3 + Leica 35/2 APO-Summicron-SL vs Sony A7R V + Voigtlander 35/2 APO-Lanthar: Mossy Bridge

2024-03-30 Leica 28mm f/2 APO-Summicron-SL ASPH Aperture Series: Riparian Creek (SL3)

2024-03-24 Leica 50mm f/2 APO-Summicron-SL ASPH Aperture Series: Riparian Creek (SL3)

2024-03-24 Leica 35mm f/2 APO-Summicron-SL ASPH Aperture Series: Riparian Creek (SL3)

2024-03-23 Leica 35mm f/2 APO-Summicron-SL ASPH Aperture Series: Landslide Hillside and Bend in Alpine Creek (SL3)

2024-03-23 Leica 50mm f/2 APO-Summicron-SL ASPH Aperture Series: Landslide Hillside (SL3)

2024-03-23 Leica 75/2 APO-Summicron-SL ASPH Aperture Series: Conifers Creekside (SL3)

2024-03-23 Leica 28/2 APO-Summicron-SL ASPH Aperture Series: Landslide Hillside (SL3)

2024-03-22 Leica 90/2 APO-Summicron-SL ASPH Aperture Series: Yellow House at Dusk (SL3)

2024-03-22 Leica 75/2 APO-Summicron-SL ASPH Aperture Series: Yellow House at Dusk (SL3)

2024-03-21 Leica 50mm f/2 Summicron-SL ASPH: Distortion and Distortion Correction

2024-03-20 Leica 35mm f/2 Summicron-SL ASPH: Distortion and Distortion Correction — Most Pathetic 35mm Optical Design EVER?

2024-03-07 Leica 21mm f/2 Super-APO-Summicron-SL: Introduction and Comments

2022-07-30 SHOOTOUT: Fujifilm GFX100S vs Leica SL2 + Leica 50mm f/2 APO-Summicron-SL, Deck And Roof

2022-01-10 Leica 50mm f/2 APO-Summicron-SL ASPH Aperture Series: Backlit Open Forest

2021-12-21 Leica 28mm f/2 APO-Summicron-SL Examples: Tenaya Canyon (Leica SL2)

2021-12-21 Leica 28mm f/2 APO-Summicron-SL Aperture Series: Tenaya Canyon Above Pywiack Falls (Leica SL2)

2021-12-18 Leica 28mm f/2 APO-Summicron-SL Examples: Tenaya Canyon (Leica SL2)

2021-09-27 Leica 28mm f/2 APO-Summicron-SL Aperture Series: Pool at Base of Dry Waterfall (Leica SL2)

2021-09-27 Leica 28mm f/2 APO-Summicron-SL Aperture Series: Stagnant Tenaya Creek in Forest (Leica SL2)

2021-09-25 Leica 50mm f/2 APO-Summicron-SL Aperture Series: View Through Trees towards Cloud’s Rest

2021-09-24 Leica 50mm f/2 APO-Summicron-SL Aperture Series: Backlit Pines among Glacial Erratics fronting Granite Cliff

Sigma L-Mount

Sigma 28mm f/1.4 DG HSM Art.

Leica SL3

60 megapixel 3rd generation..

Leica 21mm f/2 Super-APO-Summicron-SL ASPH

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

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

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

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

Fast apochromatic prime/wide lens for L-Mount cameras..

Leica 35mm f/2 Summicron-SL ASPH

Non-APO normal lens..

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

Fast short normal lens for L-Mount cameras..

Leica 50mm f/2 Summicron-SL ASPH

Non-APO normal lens..

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

Fast short telephoto lens for L-Mount cameras..

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

Fast short telephoto lens for L-Mount cameras..



Blog posts, reverse chronological

2024

2024-04-14 Leica SL3: Unstable Lens Focus with Leica 75mm f/2 APO-Summicron-SL ASPH and Leica 90mm f/2 APO-Summicron-SL ASPH

2024-04-13 Leica SL3 + Leica 75mm f/2 APO-Summicron-SL Aperture Series: Deck and Roof

2024-04-10 Leica SL3 + Leica 50mm f/2 APO-Summicron-SL Aperture Series: View from Russian Ridge to South Bay

2024-04-10 Leica SL3 + Leica 28mm f/2 APO-Summicron-SL Aperture Series: View from Russian Ridge to South Bay

2024-04-09 Leica SL3 + Leica 35mm f/2 APO-Summicron-SL Aperture Series: View from Russian Ridge to South Bay

2024-04-08 Leica SL3 + Leica 35mm f/2 APO-Summicron-SL Aperture Series: Deck and Roof

2024-04-07 SHOOTOUT: Leica SL3 + Leica 50/2 APO-Summicron-SL vs Sony A7R V + Voigtlander 50/2 APO-Lanthar: Deck and Roof

2024-04-05 Leica SL3 + Leica 28mm f/2 APO-Summicron-SL Aperture Series: Forest Tree Trunks

2024-04-03 SHOOTOUT: Leica SL3 + Leica 35/2 APO-Summicron-SL vs Sony A7R V + Voigtlander 35/2 APO-Lanthar: Mossy Bridge

2024-03-30 Leica 28mm f/2 APO-Summicron-SL ASPH Aperture Series: Riparian Creek (SL3)

2024-03-24 Leica 50mm f/2 APO-Summicron-SL ASPH Aperture Series: Riparian Creek (SL3)

2024-03-24 Leica 35mm f/2 APO-Summicron-SL ASPH Aperture Series: Riparian Creek (SL3)

2024-03-23 Leica 35mm f/2 APO-Summicron-SL ASPH Aperture Series: Landslide Hillside and Bend in Alpine Creek (SL3)

2024-03-23 Leica 50mm f/2 APO-Summicron-SL ASPH Aperture Series: Landslide Hillside (SL3)

2024-03-23 Leica 75/2 APO-Summicron-SL ASPH Aperture Series: Conifers Creekside (SL3)

2024-03-23 Leica 28/2 APO-Summicron-SL ASPH Aperture Series: Landslide Hillside (SL3)

2024-03-22 Leica 90/2 APO-Summicron-SL ASPH Aperture Series: Yellow House at Dusk (SL3)

2024-03-22 Leica 75/2 APO-Summicron-SL ASPH Aperture Series: Yellow House at Dusk (SL3)

2024-03-21 Leica 50mm f/2 Summicron-SL ASPH: Distortion and Distortion Correction

2024-03-20 Leica 35mm f/2 Summicron-SL ASPH: Distortion and Distortion Correction — Most Pathetic 35mm Optical Design EVER?

2024-03-07 Leica 21mm f/2 Super-APO-Summicron-SL: Introduction and Comments

2022

2022-07-30 SHOOTOUT: Fujifilm GFX100S vs Leica SL2 + Leica 50mm f/2 APO-Summicron-SL, Deck And Roof

2022-01-10 Leica 50mm f/2 APO-Summicron-SL ASPH Aperture Series: Backlit Open Forest

2021

2021-12-21 Leica 28mm f/2 APO-Summicron-SL Examples: Tenaya Canyon (Leica SL2)

2021-12-21 Leica 28mm f/2 APO-Summicron-SL Aperture Series: Tenaya Canyon Above Pywiack Falls (Leica SL2)

2021-12-18 Leica 28mm f/2 APO-Summicron-SL Examples: Tenaya Canyon (Leica SL2)

2021-09-27 Leica 28mm f/2 APO-Summicron-SL Aperture Series: Pool at Base of Dry Waterfall (Leica SL2)

2021-09-27 Leica 28mm f/2 APO-Summicron-SL Aperture Series: Stagnant Tenaya Creek in Forest (Leica SL2)

2021-09-25 Leica 50mm f/2 APO-Summicron-SL Aperture Series: View Through Trees towards Cloud’s Rest

2021-09-24 Leica 50mm f/2 APO-Summicron-SL Aperture Series: Backlit Pines among Glacial Erratics fronting Granite Cliff

2021-09-24 Leica 50mm f/2 APO-Summicron-SL Aperture Series: Smoky Sunset, Piper Mountain Wilderness

2021-09-24 Leica 50mm f/2 APO-Summicron-SL Aperture Series: View North to Mt Conness from Puppy Dome

2021-09-23 Leica 50mm f/2 APO-Summicron-SL Aperture Series: Peaks and Valley, Mt Conness Southern Spur

2021-09-23 Leica 50mm f/2 APO-Summicron-SL ASPH Aperture Series: Unacceptable Optical Swing (Lens Skew) + Reader Comments

2021-09-20 Leica 28mm f/2 APO-Summicron-SL Aperture series: Oily Blue Water among Orange Streambed Rocks

2021-09-18 Leica 28mm f/2 APO-Summicron-SL Aperture series: Tenaya Creek

2021-09-18 Leica 28mm f/2 APO-Summicron-SL Aperture series: Last Light on Polished Granite Humps

2021-09-18 Leica 28mm f/2 APO-Summicron-SL Aperture series: Backlit Meadow

2021-09-18 Leica 28mm f/2 APO-Summicron-SL Aperture series: Dry Waterfall

2021-09-13 Leica 50mm f/2 APO-Summicron-SL: Veiling Flare, Ghosting Flare, Ray Flare

2021-09-13 Leica 50mm f/2 APO-Summicron-SL Examples: Backyard

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)

2021-09-06 SHOOTOUT: Leica 35mm f/2 APO-Summicron-SL ASPH vs Zeiss ZM 35mm f/1.4 Distagon: Popcorn and Pumpkins (Leica SL2)

2021-09-06 Leica 35mm f/2 APO-Summicron-SL ASPH Aperture Series: Fading Sunflowers (Leica SL2)

2021-09-05 Leica 35mm f/2 APO-Summicron-SL ASPH: Severe Veiling Flare Problems

2021-09-05 Leica 35mm f/2 APO-Summicron-SL ASPH: Examples, Backyard (Leica SL2)

2021-09-04 Leica 35mm f/2 APO-Summicron-SL ASPH, Initial Impression

2021-09-03 Leica 28mm f/2 APO-Summicron-SL ASPH: Distortion and Distortion Correction

2021-09-03 Leica 28mm f/2 APO-Summicron-SL ASPH Examples: Backyard (Leica SL2)

2021-08-31 Testing the Leica SL2 + Leica 28mm f/2 APO-Summicron-SL, Leica 35mm f/2 APO-Summicron-SL, Leica 50mm f/2 APO-Summicron-SL

2019

2019-06-28 Leica 75mm f/2 APO-Summicron-SL Aperture Series: Painted Rock (Panasonic S1R Multi-Shot High-Res Mode)

2019-06-28 Leica 90mm f/2 APO-Summicron-SL Aperture Series: Painted Rock (Focus Stacked, Panasonic S1R Multi-Shot High-Res Mode)

2019-06-23 Leica 90mm f/2 APO-Summicron-SL Aperture Series: Huge Pine Among Aspen (Panasonic S1R)

2019-06-23 Leica 75mm f/2 APO-Summicron-SL Examples in Mountains (Panasonic S1R)

2019-06-23 Leica 90mm f/2 APO-Summicron-SL Examples at Dusk in Multi-Shot High-Res Mode (Panasonic S1R)

2019-06-22 Leica 75mm f/2 APO-Summicron-SL Focus Stacking in Multi-Shot High-Res Mode, Plus HighRes Exmples (Panasonic S1R)

2019-06-21 Leica 75mm f/2 APO-Summicron-SL Aperture Series: Natural Bonsai Above Beaver Pond (Panasonic S1R) [updated with reader comments]

2019-06-15 Leica 75mm f/2 APO-Summicron-SL Aperture Series: Decrepit Green Building at Ellery Lake (Panasonic S1R)

2019-06-14 Leica 75mm f/2 APO-Summicron-SL Aperture Series: Huge Pine Among Aspen (Panasonic S1R)

2019-06-13 Leica 75mm f/2 APO-Summicron-SL ASPH: Focus Instability

2019-06-12 Leica 90mm f/2 APO-Summicron-SL ASPH: Focus Instability

2019-05-27 Leica 90mm f/2 APO-Summicron-SL Aperture Series: Mosaic, Focus Shift (Panasonic S1R)

2019-05-25 Leica 90mm f/2 APO-Summicron-SL Examples: Dusk and Night Shooting (Panasonic S1R)

2019-05-23 Leica 90mm f/2 APO-Summicron-SL: Stopping Down Gets Worse at f/2.8 and f/4.

2019-05-21 Leica 90mm f/2 APO-Summicron-SL ASPH Examples: Portraits using Panasonic S1R Eye AF

2018

2018-01-15 Reader Comment: the new 75/2 and 90/2 APO-Summicron-SL Lenses for Leica SL

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