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Sony A7R IV @ about $3499

View Sony Mirrorless wish listDeals on Sony...

Sony Alpha A7R IV

4th Generation standard-setting camera..

Sony Alpha A7R IV Design Issues

Bad behaviors, anti-design, issues ..

Sony FE 35mm f/1.8

Compact moderate wide angle..

Sigma 14-24mm f/2.8 DG DN Art

Native-mount ultra wide angle high performance zoom for mirrorless..

Sigma 35mm f/1.2 DG DN Art

Ultra high speed native-mount moderate wide angle..

Sigma 45mm f/2.8 DG DN Contemporary

Compact native-mount normal lens..

Sigma 70mm f/2.8 DG Macro Art

Macro lens also excellent for all-around shooting..

Voigtlander FE 21mm f/1.4 Aspherical

Fast high performance manual focus wide angle..

Voigtlander FE 65mm f/2 Macro APO-Lanthar Aspherical

Ultra high grade performer at a modest price..

Voigtlander FE MACRO APO-LANTHAR 110mm f/2.5

High grade macro all-arounder at a modest price..

Sony FE 12-24mm f/4 G

Extreme wide angle zoom..

Sony FE 16-35mm f/2.8 GM

Pro-grade f/2.8 wide angle zoom..

Zeiss Loxia 21mm f/2.8 Distagon

Outstanding ultra wide angle performer..

Zeiss Loxia 25mm f/2.4 Distagon

Outstanding wide angle, superb performer..

Zeiss Loxia 35mm f/2 Biogon

Manual focus moderate wide angle for full-frame mirrorless..

Zeiss Loxia 85mm f/2.4 Sonnar

Manual focus telephoto lens for full-frame mirrorless..

Zeiss Batis 25mm f/2 Distagon

Autofocus wide angle for Sony full-frame mirrorless..


Blog posts, reverse chronological

2019

2019-11-03 Voigtlander 65mm f/2 APO Macro-Lanthar Aperture Series: 'View to Mt Conness from Tuolumne Meadows Area, Early Night' — also evaluates long exposure noise on Sony A7R IV

2019-10-31 Voigtlander 65mm f/2 APO Macro-Lanthar Aperture Series: View to Mt Conness Past Granite Dome, Late Dusk

2019-10-31 Sometimes, Grossly Misleading Errors in Sony RGB Histogram

2019-10-28 Sony A7R IV: Horrible Dust Problems

2019-10-27 Zeiss Loxia 85mm f/2.4 Examples: Massive Ancient Bristlecone Trunk (Sony A7R IV)

2019-10-27 Zeiss Loxia 25mm f/2.4 Examples: White Mountains Bristlecones (Sony A7R IV)

2019-10-27 Zeiss Loxia 25mm f/2.4 Aperture Series: Bristlecone Logs View to Bristlecone Graveyard, Dusk Purple Sky (Sony A7R IV)

2019-10-26 A Real World Example of How Sony 11+7 Bit Lossy Compression Creates Ugly Block Artifacts

2019-10-24 Sigma 35mm f/1.2 DG DN Art Aperture Series: Patriarch Grove from Above At Dusk, View Southwest (Sony A7R IV)

2019-10-21 Sigma 35mm f/1.2 DG DN Art: Pine Creek Examples

2019-10-20 Voigtlander 65mm f/2 APO Macro-Lanthar Examples: Pine Creek Panoramas

2019-10-20 Reader Comments: Downloadable Settings for Sony A7R IV

2019-10-14 Sony A7R IV: Confusing Stop-Down Behavior, Camera Chooses Arbitrary/Unspecified Aperture for Viewing/Focusing

2019-10-13 Sony A7R IV: Using Pixel Shift to Capture 4 Frames for Frame Averaging

2019-10-09 Voigtlander 65mm f/2 Macro APO-Lanthar Aperture Series: Old Mining Structures

2019-10-08 Voigtlander 65mm f/2 Macro APO-Lanthar Aperture Series: Music Box in Miner’s Cabin

2019-09-28 Shootout: Sigma 14-24mm f/2.8 DG DN Art vs Zeiss Loxia 21mm f/2 Distagon: Twenty Lakes Basin, View Towards Mt Conness Drainage (Sony A7R IV)

2019-09-27 Shootout: Sigma 35mm f/1.2 DG DN Art vs Zeiss Loxia 35mm f/2 Biogon: Twenty Lakes Basin, View Towards Mt Conness Drainage (Sony A7R IV)

2019-09-27 Jaw-Dropping Image Quality: Sony A7R IV with Sigma 14-24mm f/2.8 DG DN Art Examples: Eastern Sierra

2019-09-27 Conclusions and Recommendations for Sigma 14-24mm f/2.8 DG DN Art

2019-09-25 Autumn Color Season Starting in Eastern Sierra

2019-09-23 Sigma 35mm f/1.2 DG DN Art Aperture Series: Rocky Creekbed at Dusk (Sony A7R IV)

2019-09-22 3-Way Shootout: Sony 16-35mm f/2.8 GM vs Sony 12-24mm f/4 G vs Sigma 14-24mm f/2.8 DG DN Art @ 24mm: Mosaic (Sony A7R IV)

2019-09-21 Exploring Frame Averaging for Sony A7R IV (Updated with reader comments)

2019-09-20 Sony A7R IV Burst Mode for Frame Averaging Drops to 12-Bit Files if Using Compressed RAW

2019-09-20 Sony 16-35mm f/2.8 GM Aperture Series @ 35mm: Mosaic (Sony A7R IV)

2019-09-20 Sigma 70mm f/2.8 Macro Aperture Series: Mosaic (Sony A7R IV)

2019-09-19 Voigtlander MACRO APO-Lanthar 110mm f/2.5 Aperture Series: Mosaic (Sony A7R IV)

2019-09-19 Sony FE 35mm f/1.8 Aperture Series: Mosaic (Sony A7R IV)

2019-09-19 Sony A7R IV vs Lens Quality Control (all brands), Actual Increase in Resolution over the Sony A7R III

2019-09-19 Shootout: Sony 12-24mm f/4 G vs Sigma 14-24mm f/2.8 DG DN Art @ 14mm: Mosaic (Sony A7R IV)

2019-09-19 3-Way Shootout: Sony 16-35mm f/2.8 GM vs Sony 12-24mm f/4 G vs Sigma 14-24mm f/2.8 DG DN Art @ 18mm: Mosaic (Sony A7R IV)

2019-09-18 Zeiss Loxia 35mm f/2 Biogon Aperture Series: Mosaic (Sony A7R IV)

2019-09-18 Voigtlander 65mm f/2 Macro APO-Lanthar Aperture Series: Tower at Dusk in Rosy Glow (Sony A7R IV)

2019-09-18 Voigtlander 65mm f/2 Macro APO-Lanthar Aperture Series: Rodin Courtyard (Sony A7R IV)

2019-09-18 Voigtlander 65mm f/2 Macro APO-Lanthar Aperture Series: Rodin Burghers (Sony A7R IV)

2019-09-18 Sony FE 12-24mm f/4 G Aperture Series: Mosaic (Sony A7R IV)

2019-09-18 Shootout: Voigtlander FE Nokton 21mm f/1.4 Aspherical vs Zeiss Loxia 21mm f/2.8: Mosaic (Sony A7R IV)

2019-09-18 Lens Quality Control as Revealed by Demanding Sony A7R IV 60MP Sensor

2019-09-17 Nikon D850 Monochrome: Initial Example, and Frame Averaging for Ultra Low Noise (updated with comments, Sony A7R IV Potential)

2019-09-16 Voigtlander 65mm f/2 Macro APO-Lanthar Aperture Series: Mosaic (Sony A7R IV)

2019-09-16 Sony A7R IV: Diffraction with High Grade Lenses

2019-09-16 Sony A7R IV Image Quality: Crosshatching Pattern Noise with Adobe Camera Raw Enhance Details

2019-09-16 Sony A7R IV 'Cooks' Its RAW Files, Just Like Its Predecessors

2019-09-16 Sigma 45mm f/2.8 DG DN Contemporary Aperture Series: Mosaic (Sony A7R IV)

2019-09-16 Sigma 35mm f/1.2 DG DN Art Aperture Series: Mosaic (Sony A7R IV)

2019-09-16 Sigma 35mm f/1.2 DG DN Art Aperture Series: Effects of Distortion Correction

2019-09-15 Zeiss Loxia 25mm f/2.4 Aperture Series: Mosaic (Sony A7R IV)

2019-09-15 Sony A7R IV Raw File Support in Adobe Camera Raw is Preliminary, Problematic

2019-09-15 Sony A7R IV Quick Thoughts

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

2019-09-14 Sigma 35mm f/1.2 DG DN Art Aperture Series: Teak Bench (Sony A7R IV)

2019-09-14 LibRaw Updates PixelShift2DNG for Sony A7R IV, Supports 4-frame and 16-frame Pixel Shift Files

2019-09-12 Lucky to get one: Sony A7R IV Arriving Friday

2019-09-09 Voigtlander Macro APO-Lanthar 110m f/2.5

2019-08-30 Landscape Photographers Looking for Superior Results and Lowest Effort and Fewest Problems Go with Fujifilm GFX100, not Sony A7R IV

2019-08-25 Sony A7R IV Looks Flawed for My Purposes: Appear to Lack Focus Stacking Support and Lossless Compressed RAW

2019-08-18 Some Fujifilm GFX100 Behaviors also Apply to the coming Sony 7R IV

2019-07-19 Sony A7R IV: Which High-Speed and High-Capacity SDXC Cards Are Best?

2019-07-19 Sony A7R IV: Serious Doubts About Viability of Sony 16-Shot High-Res Mode for Field Use

2019-07-17 Sony A7R IV Takes the Floor

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