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Sigma 40mm f/1.4 DG HSM Art

Extraordinary optical efforts for outstanding performance..

Otus 28mm f/1.4 APO-Distagon

Fast high performance APO wide angle..

Canon EOS R5

Canon’s high-res mirrorless..

Nikon Z7 Overview, Setup, General

Setup, IBIS performance, focusing..

Nikon Z7 IBIS and Focusing

Setup, IBIS performance, focusing..

Nikon Z7 Image Quality

Image quality..

Nikon NIKKOR Z 35mm f/1.8 S

Moderate wide angle expressly designed for Nikon Z cameras..

Sony A1 Setup and Configuration

Menus, buttons, customization..

Sony Alpha A7R II

Attention to details: a big upgrade over the A7R..

Sony Alpha A7 II

Sensor stabilized 24MP full-frame..

Sony FE 50mm f/1.2 GM

High performance, high speed..

Sony FE 55mm f/1.8 ZA Sonnar

Compact normal lens for full-frame Sony mirrorless..

Sony FE 85mm f/1.4 GM

Top-grade medium telephoto..

Sony FE 70-300mm f/4.5-5.6 G OSS

Compact long range telephoto zoom for Sony full frame mirrorless.

Zeiss Batis 18mm f/2.8 Distagon

Autofocus extreme wide angle for Sony full-frame mirrorless..

Zeiss Batis 40mm f/2

All-around slightly wide angle/normal with close focus..


Blog posts, reverse chronological

2022

2022-02-17 Fujifilm GFX100S: Which Mid-Range Lenses?

2022-02-11 Compact, Enjoyable Medium Format that Might Surprise and Delight — Fujifilm GFX-50R just $2999

2021

2021-04-09 Reader Comments: Fujifilm GFX100S

2020

2020-10-18 Analyzing Swing and Tilt of Sony A7R IV with Two Samples of Sony FE 12-24mm f/2.8 GM

2020-04-17 Reader Comment/Question: Image Stabilization and Sharpness, Monopod vs Tripod

2019

2019-09-15 Demands on Lens Performance with the Sony A7R IV are More Pronounced than I had Anticipated

2019-08-23 Fujifilm GFX100 Sensor Stabilization (IBIS): Beware Destruction of Image Sharpness on a Tripod

2019-08-20 Fujifilm GFX100 Focus Stacking Handheld with Sensor Stabilization (IBIS)

2019-08-19 How Good is Fujifilm GFX100 Sensor Stabilization? “Earth Shadow Rising Above Barcroft Research Station”, 1/10 Second Handheld

2018

2018-10-31 Zeiss Batis 40mm f/2 CF Examples: Bishop Creek at Dusk, Handheld

2018-10-21 Nikon Z7: Validating Focus Accuracy, Exposure, Handheld with IBIS and Nikon NIKKOR Z 35mm f/1.8 (Bishop Creek)

2018-10-11 Nikon Z7: Examples, Handheld with IBIS, Very Slow Shutter: Lundy Canyon (Various)

2018-10-10 Nikon Z7: Examples, Handheld with IBIS, Very Slow Shutter: Lundy Canyon (Zeiss Otus 28/1.4)

2018-10-09 Nikon Z7: Shooting Handheld with and Without IBIS

2018-10-08 Nikon NIKKOR Z 24-70mm f/4 S Examples Using IBIS, Conness Lakes Area

2018-10-03 Reader Comments: Nikon Z7 Focusing and IBIS vs Sony Mirrorless

2017

2017-07-21 Sony A7R II Tripod Use: IBIS Damages Image Sharpness as it Always Has

2016

2016-09-09 Sony 50mm f/1.4 ZA: Examples in Hall Natural Area at Dusk

2016-08-25 Sony A7R II IBIS (In Body Image Stabilization) Destroys Sharpness on a Tripod

2016-05-05 Shipping: Sony FE 70-300mm f/4.5-56 G OSS

2016-03-31 Sony FE 70-300mm f/4.5-56 G OSS

2015

2015-08-23 Sony In-Body-Image-Stabilization (IBIS) aka SteadyShot: Is There a Downside?

2015-08-22 Sony A7R II: Evaluating SteadyShot (IBIS) Handheld at 1/20 Second at 25mm

2015-08-21 Sony A7R II, Sony Lenses: Reader Comments

2015-08-08 Sony A7R II: Assessing IBIS at 280mm: Is Handheld Shooting at 42 Megapixels at 1/125 Second Viable?

2015-08-04 Readers Write on the Sony A7R II: is there a quality issue with the EVF?

2015-06-10 Announced: Sony A7R II with 42-Megapixel sensor, In-Body-Image-Stabilization, 4K Video

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