Blur from optical behavior or subject-related issue..
Digital capture technology is discrete, and not the same as film..
Focusing is more complicated than it first appears..
Zone of focus, not plane of focus.
Actual example of field curvature..
Understanding resolution and contrast graphs..
Sigma/Foveon true-color sensor in a DSLR body..
The best becomes better..
36 megapixels in a compact full-frame DSLR..
In-depth review of the Canon EF 14mm f/2.8L II including flare, distortion, field curvature, resolution charts, numerous field examples and comparison to the Nikon 14-24mm f/2.8G. The Canon EF 14/2.8L II is a superb lens, but with some peculiarities which may enhance or degrade its appeal for different uses. The review is as much a “user guide” as a review; even if you use this lens it’s well worth your time to read this review..
Evaluates performance of the Nikon 70-200mm f/2.8 VR on the Nikon D3. Comparison with the Nikon 180mm f/2.8D ED-IF..
Ultra wide tilt/shift lens.
Escape the banale postcard look by shooting landscapes at f/1.4 or f/0.95..
Full frame slightly wide normal lens, pancake form factor..
APS-C slightly tele normal lens equivalent to 60mm on full-frame..
Canon’s compact high-performance 24mm prime..
Canon’s tiny and lovely pancake lens..
Is Canon’s f/1.2 lens really better than an inexpensive f/1.4 or f/1.8?.
Canon’s updated fast 35mm prime, evaluated on Canon 5DS R..
Canon’s image stabilized 35mm..
Tamron’s ultra wide to medium fast zoom..
Fast constant-aperture ultrawide zoom..
Superwide optimized zoom lens..
Mid-range optimized groundbreaking f/2 zoom..
A whopping 4/3 stop faster than other lenses in its range..
The fastest extreme wide angle yet..
Sigma’s fast high performance wide angle..
- Aperture Series: Huge Barn Interior (Nikon D810)
- Aperture Series: Collapsed Ranch House at Sunset (Nikon D810)
- Aperture Series: Huge Barn Interior (Nikon D810)
- Shootout: Sigma 24/1.4 Art vs Canon 24/1.4L II, 24/2.8 IS, 11-12/4L (Bench, Canon 5DM3)
- Shootout: Sigma 24/1.4 Art vs Canon 24/1.4L II, 24/2.8 IS, 24-70/2.8L II, 11-12/4L (Pescadero Creek, Canon 5DM3)
Sigma’s fast and affordable moderate excellent wide angle..
Sigma’s fast high performance normal lens..
Fastest 135mm lens yet, with ultra high performance..
Wide angle tilt/shift lens at 28mm..
The Sigma 50mm f/1.4 is a worthy contender in the crowded 50mm area. See how it performs compared to the Canon EF 50/1.4 and EF 50/1.2L..
Explores options for 180mm lenses on the Nikon D3x, including the Leica 180/2.8 APO-Elmarit-R in Nikon mount, Nikon 180/2.8 ED, Nikon 70-200/2.8 VR, Nikon 70-300/4.5-5.6 VR, and Tamron 70-200/2.8. Updated: now includes the Voigtlander 180/4 APO!.
Nikon’s classic high speed normal lens.
Nikon’s latest 50mm lens compared with the Zeiss ZF 50/1.4, Nikon 50/1.4D and Sigma 50/1.4..
Nikon’s High Performance Moderately-Priced 50mm..
Nikon’s High performance normal lens.
- Shootout: 58/1.4G vs 50/1.4G, 50/1.8G, 50/1.2 AIS (D800E, DeChambeau Sidelit Barn)
- Shootout: 58/1.4G vs 50/1.4G, 50/1.8G, 50/1.2 AIS (D800E, Beaver Dam)
- Matched Comparison vs 50/1.4G (D800E, Beaver Dam)
- Aperture Series: Building at Night (D800E)
- Aperture Series: Flyers on Kiosk (D800E)
- Aperture Series: Church at Night (D800E)
- 58/1.4G vs NOCT-Nikkor vs Voigtlander 58/1.4 SL (D800E, Persimmon Tree)
- 58/1.4G vs NOCT-Nikkor vs Voigtlander 58/1.4 SL (D800E, Street at Night)
State of the art design in a fast ultra wide angle lens..
Nikon’s fast ultra wide angle..
Versatile image-stabilized mid-range zoom..
Versatile autofocus wide angle..
State of the art design in a fast 24mm lens. Includes full-resolution images at f/1.4..
Comparing the new Nikon 60mm to its predecessors, and the Coastal Optics 60/4 APO..
A superlative multi-spectral lens with perfect color correction..
Canon’s compact image stabilized wide angle zoom..
Canon’s premium mid-range zooms..
A fast moderate wide angle lens with some practical difficulties..
State of the art design in a fast 35mm lens..
Relatively inexpensive alternative to the pro 35/1.4G..
Nikon’s best-ever f/1.4 lens?.
Relatively compact super-telephoto zoom..
Comparing Nikon 16-35mm f/4 VR, 17-35mm f/2.8, 14-24mm f/2.8, 18-35mm, 24-70mm f/2.8 along with Nikon 20mm f/3.5, 24mm f/2, 28mm f/2, 35mm f/1.4 AIS, and more..
Comparing the 16-35mm f/2.8L II to most of Canon’s wide angle prime lenses. Optical performance, ergonomics, focus, build quality..
Nikon’s ultra wide angle zoom and the Nikon 14mm f/2.8, critical focus shift behavior..
Medium format Zeiss glass in Hartblei precision tilt/shift lens barrels!.
Fast wide angle..
Fast and gorgeous moderate wide angle Zeiss design..
Compact moderate wide angle for Sony mirrorless..
Compact normal lens for full-frame Sony mirrorless..
Pro-grade f/2.8 wide angle zoom..
Premiere mid-range zoom for Sony full frame mirrorless.
Wide angle to telephoto zoom with optical stabilization..
Extreme wide angle with 'zero distortion'..
Ultra wide angle lens adapted from DSLR, native E-mount, all manual..
Wide angle lens adapted from DSLR, native E-mount, all manual..
Does pricey M glass deliver on mirrorless?.
Fixed 28mm lens with APS-C sensor free of anti-aliasing blur with wonderful color..
Razor sharp 28mm lens on APS-C sensor and outstanding usability and features..
Full frame camera in an ultra-compact body with or without anti-aliasing filter..
A high performance mid-range zoom..
A fast moderate wide angle..
Native Micro Four Thirds macro lens..
Compact wide angle equivalent to 16-36mm..
Fast, bright and well corrected wide angle..
A fast and lovely 'normal' lens (50mm equiv) for Micro 4/3..
Can smaller sensor cameras compete with larger ones on any basis?.
Moderate wide angle for Sony NEX..
Use DSLR lenses at ~native focal length, and gain a stop of speed..
Outstanding ultra wide angle performer..
Outstanding wide angle, superb performer..
Manual focus moderate wide angle for full-frame mirrorless..
Manual focus normal lens for full-frame mirrorless..
Autofocus extreme wide angle for Sony full-frame mirrorless..
Ultra wide angle lens for Sony NEX or Fujifilm X..
Normal lens for Sony NEX or Fujifilm X..
Moderate telephoto macro lens for Sony NEX or Fujifilm X. Useful on full frame too!.
Moderate wide angle equivalent to 37mm f/2.3..
Medium telephoto macro lens for Pentax 645 digital and film..
Extreme wide angle with ultra high performance..
Moderate wide angle with low distortion..
Milvus garb for the venerable 15/2.8 Distagon, with improved lens coating..
Highest performing 25mm from Zeiss ever..
On Otus, in effect. Milvus garb for the 135/2 APO, with improved lens coatings on one element. See the ZF.2/ZE 135/2 review pages..
Ultra high performance in an extreme wild wide angle lens..
- 15/2.8 MTF Chart
- Optimizing Focus for Field Curvature and Subject (Campfire / SUV)
- Field Curvature and MTF and Focus (Nikon D800E, Mosaic)
- Aperture Series: Confluence of Branched Creek with Sedges and Boulders (Sony A7)
- Aperture Series: Pine Creek Stormy Light (Nikon D810)
- Comparison to Nikon 14-24 (Aspen Cluster, Nikon D800E)
A brilliant, but also colorful character..
Brilliant imaging, even wide open, but with a few quirks. (Review in progress) .
- Examples: Lundy Canyon, Early Winter
- Aperture Series: Pine Creek Stormy Light (Nikon D810)
- Aperture Series: Green Hills (D800E)
- Aperture Series: Eroding Ancient Bristlecone Pine (D800E)
- Aperture Series: Curving Confluence with Sedges and Boulders (Sony A7)
- vs Nikon 20mm f/1.8G: Mt Conness Glacier Remnants (Nikon D810)
- vs Nikon 14-24/2.8G, et al
- vs Canon 16-35/2.8L II
- vs Canon 20mm f/2.8 and 16-35mm f/2.8L II
- vs Nikon 14-24/2.8G and Nikon 16-35/4G VR
- vs Leica 21mm f/1.4 Summilux-M ASPH (Leica M Typ 240)
Ultra high performance with a fast aperture..
- Examples (White Mountains Snowy Day)
- Field Curvature (Tioga Pass)
- Aperture Series: Backlit Bristlecone (Nikon D800E)
- Compared: 25/2 vs 25/2.8 (Bristlecone View of White Mountain Peak, Nikon D800E)
- Aperture Series: Silver Canyon Cottonwood
- Aperture Series: Pescadero Creek Confluence (Sony A7)
- Comparison: 25/2 Distagon vs Canon 24mm ƒ/1.4L II (Woods)
- Comparison: 25/2 Distagon vs 25/2.8 Distagon, Nikon 24/1.4G (Water Tanks)
A gem with unusual close-focus..
An artist’s drawing tool..
- 28/2 Distagon Main Page
- MTF Chart
- Curvature of Field
- Comparison—Nikon D3
- 28/2 Distagon vs Nikon 24-70/2.8G, Nikon 16-35/4G VR, Nikon 28/2
- 28/2 Distagon vs Nikon AF-S 28mm f/1.8G
- 28/2 Distagon vs Nikon 28/1.8G, 28/2 AIS, Voigtlander 28/2.8 SL II
- 28/2 Distagon vs Voigtlander Color Skopar 28/2.8 SL II, Nikon 28/2 AIS, Nikon AF-S 28/1.8G
- Aperture Series: Mossy Green Boulders Amid Water Polished Rocks (D800E)
- Aperture Series: Creekside Yellow Flowers and Dark Rocks, Lundy Creek (D810)
- Aperture Series: Twisted Aspen (D810)
- Aperture Series: White Mountains Landscape (Nikon D810)
- Resolution Chart
Strokes of a master..
- MTF For 35/1.4 Distagon
- Examples Near Alpine Creek
- Examples, Nikon D3x in Sierra and White Mountains
- Comparison — Zeiss ZE 35 f/2 (Mosaic)
- Comparison — Forest Redwood
- Comparison — Storm-Swollen Creek
- Comparison — Mossy Tree By Creek
- vs Sigma 35/1.4 and Nikon 35/1.4G (Nikon D800E, Dolls)
- Validating Optical Performance of the ZF.2 35/1.4
Comparing the two 50mm options near and far, more comparisons coming..
Versatility in a “normal” lens and macro too!.
Fast high performance APO wide angle..
Ultra high performance apochromatic normal lens, first in the Otus line..
Rendering style, bokeh and beauty..
Ultra high performance apochromatic medium telephoto, overview and technical..
Rendering style, bokeh and 'transparency' without peer..
King of bokeh! Corner-to-corner sharpness, world class..
Beautiful bokeh, razor sharp, superb color correction..
Articles written for Lenspire.ZEISS.com..
- Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges
- Focusing Zeiss DSLR Lenses For Peak Performance PART TWO: Tips and Best Practices for Sharply Focused Images
- Zoom Lens or Prime? Moderate Wide Angles (25mm, 28mm, 35mm)
- Zoom Lens or Prime? 50mm and 55mm
- Astrophotography Tips, Especially with Zeiss Otus 28mm f/1.4 APO-Distagon
Understanding lens performance..
Q&A on the 15/2.8 Distagon with Dr. Hubert Nasse.
A reference lens for color correction..
Relative sharpness and performance across cameras..
Field shooting the Leica MM, and comparisons..
Focal lengths, color, weight and travel considerations. [relevant, but dated/old material].
Leica’s ultra wide angle zoom lens..
Leica’s widest prime lens..
Leica’s fastest and widest lens..
Leica’s best-performing 21mm..
Leica’s fast wide angle..
A discontinued but excellent 24mm..
Leica’s best-performing 24mm, and with a flat field..
Leica’s fast 28mm..
Leica’s widest lens utilizing built-in frame lines..
Tweaked 2016 redesign..
Leica’s smallest and lightest M lens with superlative performance..
Leica’s superlative and most natural lens for the M..
- MTF: Prior version vs 2010 Summilux-M 35mm /1.4 ASPH
- Aperture Series: 35/1.4 — Tile Rooftops Aerial
- Assessing Field Curvature— Green Paint (M240)
- Examples: Leica 35mm f/1.4 Summilux-M ASPH (Yosemite)
- Compared: 35mm f/1.4 Summilux vs 35/2 Summicron vs Zeiss 35/2 Biogon (M9P, Cabin Exterior)
- 35/1.4 Summilux vs Zeiss 35/2 Biogon (M240, MTB)
- Compared: vs Zeiss ZM 35/2 and Sony 35/2.8 (Sony A7R, Red Barn)
Leica’s f/2 35mm for the M..
Six models to choose from..
- 50mm 4-way Comparison (M240, Wagon)
- 50mm 4-way Comparison (M240, Pellegrino Bottles)
- Compared: Noctilux, Summilux, APO-Summicron, Zeiss Planar (M240, Bristlecone)
- Compared: Noctilux, Summilux, APO-Summicron, Zeiss Planar (M240, Tioga Cabin #9 Chair)
- Compared: Noctilux, Summilux, APO-Summicron (M240, Wyman Canyon Cabin)
- Compared: Noctilux, Summilux, APO-Summicron (M240, Green Paint Bldg)
- 50/2 APO vs Noctilux (M240, Orange-Bark Pine Tree)
- Shootout (Aerial): Leica 50/1.4 Summilux-M ASPH vs 50/0.95 Noctilux-M ASPH
- Sony A7R: Noctilux, Summilux, APO Summicron, Zeiss 50/2 Planar (Red Barn)
- Ray Angle and Rangfinder Lenses: Leica 50/2 APO vs Zeiss 50/2 Planar (Wyman Cabin, Sony A7R)
- Noctilux vs Summilux vs Nikon 50/1.2 (M240, DeChambeau Barn)
World’s fastest 50mm full-frame lens..
Leica’s superlative normal lens..
The world’s best 50mm lens is outstanding, but with some limits..
Leica’s compact low-distortion normal lens..
Leica’s medium tele for Leica M..
Leica’s compact 90mm for the M..
Compact lens for portraiture or similar..
Superb all-around macro and general-purpose lens..
Fast and ultra high performance moderate wide angle rangefinder lens..
- MTF for Zeiss ZM 35/1.4 Distagon
- Field Curvature for Zeiss ZM 35/1.4 Distagon
- Examples at ƒ/1.4 in Eastern Sierra and White Mountains continued (M240)
- Aperture Series: Backlit Redwood Grove (M240)
- Aperture Series: Rocky Hillside (M240)
- Aperture Series: Exfoliating Granite and High Cloud Sun Drama (M240)
- Aperture Series: Green Lichen on North Side of Barn (M240)
- 6-way Shootout: ZM 35/1.4 vs 35/2 and 35/2.8, Leica 35/1.4 and 35/2, Voigtlander 35/1.2 (Wyman Cabin, M240)
- 6-way Shootout: ZM 35/1.4 vs 35/2 and 35/2.8, Leica 35/1.4 and 35/2, Voigtlander 35/1.2 (Aspen Trunk, M240)
- 6-way Shootout: ZM 35/1.4 vs 35/2 and 35/2.8, Leica 35/1.4 and 35/2, Voigtlander 35/1.2 (Pine Creek Morning, M240)
All around razor sharp performer..
Fast high performance wide angle..
A slightly slower, but smaller and lighter alternative to the Noctilux, at 1/10 the price..
2015-10-22 The Irrational Aim of f/1.4 Lenses
2013-01-16 Reader Comment: Field Curvature
2009-01-31 Comparing lenses — field curvature
2009-01-17 Canon 5D Mark II and optics