Jul 3, 2026
lensAdded Canon RF 16mm f/2.8, 20mm f/1.4, and 50mm f/1.4 primes
Jul 1, 2026
lensAdded three new Canon new FD lenses, 14mm f/2.8, 100mm f/2, and 150-600mm f/5.6
Jun 30, 2026
lensAdded six Kodak and Konica patent-derived lens diagrams
Jun 29, 2026
improvedImproved Schott glass matching and chromatic coverage across lenses
lensAdded Enna München Lithagon wide-angle lenses
Jun 28, 2026
lensAdded Agfa Solagon, Color-Telinear, and Color-Magnolar II lenses
Jun 27, 2026
lensAdded Sony FE 12-24mm f/2.8 GM and two FE 24mm primes
Jun 26, 2026
newAdded large-format and enlarging lens browsing categories
lensAdded Canon PowerShot zooms plus Nikon 10.5mm fisheye and 200mm Micro
Jun 25, 2026
improvedImproved Canon, Fujifilm, and Zeiss patent-audited glass and metadata
lensAdded Canon G1 X, Nikon 35-70mm, and Rodenstock enlarger lenses
Jun 24, 2026
lensAdded six Rodenstock large-format lenses
improvedImproved Hasselblad, Leica, Laowa, Nikon, Olympus, Minolta, and Panasonic patent data
Jun 23, 2026
lensAdded patent-audited Canon TS-E 50mm, 90mm, and 135mm L tilt-shift lenses
fixCorrected Sigma semi-diameter geometry and Voigtlander Heliar stop placement
improvedImproved Sigma, Sony, Voigtlander, Vivitar, Schneider, Pentax, and Ricoh patent data
Jun 22, 2026
improvedRefreshed the brand mark, favicons, and social cards with a negative center element
lensAdded three Pentax K-mount lenses, including the A★ 200mm f/4 Macro ED
fixStopped ray traces after missed surfaces and limited clipped ghost rays
Jun 21, 2026
lensAdded three Olympus OM telephoto and zoom lenses
Jun 20, 2026
lensAdded Olympus 21mm, 9-36mm, and 8mm fisheye lenses
Jun 19, 2026
lensAdded six Nikon lenses, including Series E primes and AI zooms
Jun 18, 2026
lensAdded four Nikon F-mount zooms from 25-50mm to 70-180mm Micro
Jun 17, 2026
lensAdded Canon FD 24mm f/2.8, 28mm f/2.8, and 300mm f/4 lenses
Jun 16, 2026
lensAdded four Nikon F-mount primes from 20mm to 105mm macro
fixRemoved the duplicate Canon EF 100mm f/2.8L Macro IS USM entry
Jun 15, 2026
improvedNormalized lens display names across the catalog
lensAdded Fujifilm XF 23mm F1.4 LM WR, F2, and F2.8 lenses
Jun 14, 2026
lensAdded Fujifilm XF 16-55mm II, XF 33mm F1.4, and XF 56mm F1.2 R WR
Jun 13, 2026
lensAdded Sigma 10-18mm F2.8 DC DN, 16mm F1.4 DC DN, and DP1x 16.6mm
Jun 12, 2026
lensAdded three Sigma lenses: 35mm F1.4, 45mm F2.8, and 50mm F1.4
Jun 11, 2026
lensAdded Sigma 17-40mm, 23mm, and 30mm lenses
Jun 10, 2026
lensAdded Canon EF 20-35mm, EF 24-70mm, and Serenar 100mm lenses
Jun 9, 2026
lensAdded six Pentax Limited and D FA prime lenses
lensAdded Minolta AF 28mm f/2, 28-75mm f/2.8, and Reflex 500mm f/8
fixFixed axial image-plane markers for zoomed and focused ray tracing
Jun 8, 2026
improvedImproved chromatic overlay labels for LoCA and off-axis fan diagnostics
improvedImproved glass matching and chromatic quality indicators
lensAdded Panasonic Nocticron 42.5mm, Summilux 12mm, and G 14mm lenses
Jun 7, 2026
newAdded mount reference diagrams for the 300-lens catalog milestone
lensAdded three Olympus lenses
Jun 6, 2026
lensAdded three Sigma mirrorless lenses: 24mm F1.4, 28-45mm F1.8, and 60mm F2.8
Jun 5, 2026
fixFixed annular stop rendering for centrally obstructed reflex lenses
fixFixed chromatic ray tracing through folded Mangin mirror lenses
lensAdded three Olympus Micro Four Thirds lenses: M.Zuiko Digital 12mm f/2.0, M.Zuiko Digital 17mm f/2.8, and M.Zuiko Digital 14-42mm f/3.5-5.6 II R
fixFixed a bug in focusing Nikon Reflex-Nikkor 500mm f/8 (New)
Jun 4, 2026
lensAdded three Nikon reflex lenses: Reflex-Nikkor·C 500mm f/8, Reflex-Nikkor 500mm f/8 New, and Reflex-Nikkor 1000mm f/11
improvedImproved folded mirror-lens validation, ray sampling, and annular mirror rendering
lensAdded three Leica lenses: Elmarit-TL 18mm f/2.8 ASPH, Elmarit-M 135mm f/2.8, and Elmar-M 135mm f/4
Jun 3, 2026
lensAdded three Fujifilm GFX medium-format zoom lenses
Jun 2, 2026
lensAdded three Nikon AI F-mount lenses
Jun 1, 2026
lensAdded three Nikon AF-S F-mount zoom lenses
May 31, 2026
improvedImproved desktop viewer stability during focus, zoom, and aberration analysis
lensAdded three new Sigma lenses
May 30, 2026
newAdded chromatic analysis charts for LoCA, lateral color/TCA, and field-focus color
fixFixed LoCA and off-axis fan-spread displays to use matching charts with violet-channel traces
lensAdded three Sigma macro lenses
May 29, 2026
improvedFocus slider now displays as disabled for lenses without focusing data
lensAdded three Sony FE zooms: 28-70mm OSS and 70-200mm F2.8 GM/F4 G
May 28, 2026
lensAdded three Sony E-mount APS-C lenses: 18-55mm, 30mm Macro, and 35mm OSS
May 27, 2026
lensAdded three Leica R-mount lenses
improvedModernized the optics engine for state-aware ray tracing and analysis
newAdded optical summary and bokeh tabs to the analysis drawer
fixRemoved the duplicate beta bokeh panel from the diagram overlay controls
improvedImproved fisheye bokeh and folded-mirror pupil analysis
May 26, 2026
newAdded hidden mirror and folded-path optics fixtures with accurate folded ray tracing
lensAdded three Minolta AF lenses, a 35-70mm f/4 zoom and APO telephotos
May 25, 2026
lensAdded three Nikon APS-C format lenses for F mount
May 24, 2026
lensAdded three Canon APS-C format lenses for EF mount
May 23, 2026
lensAdded three Pentax medium-format lenses for 645 and 67 systems
improvedCompleted the transition to the updated exact surface ray tracing method
May 22, 2026
lensAdded eight Sony and Zeiss lenses, from FE primes to Distagons, Touit Macro, and Biogon
May 21, 2026
lensAdded the Carl Zeiss Hologon 15 mm f/8 with its stop modeled inside the central element
lensAdded six Canon EF L-series lenses from fisheye zoom to macro and telephoto
improvedImproved fisheye zoom projection analysis across the zoom range
May 20, 2026
improvedNikon Fisheye-Nikkor 6mm lenses now show their full 110° patent-declared half-field
improvedDistortion field grid now fills in for fisheye lenses where it previously left corners blank
lensAdded 12 Nikon lenses, from 1 NIKKOR primes to fisheyes and FX classics
May 19, 2026
improvedExpanded Sellmeier coverage to 247 vendor-verified glass entries
fixAudited 52 lens prescriptions and corrected glass labels across the catalog
lensAdded six Fujifilm GF medium-format lenses
May 18, 2026
lensAdded six new lenses for fixed-lens Fujifilm Cameras
May 17, 2026
lensAdded six new Olympus lenses
May 16, 2026
lensAdded three Sony GM zooms and three Schneider large-format lenses
May 15, 2026
improvedImproved patent-focused search metadata, sitemap links, and social previews
lensAdded six Laowa lenses: 12mm, 15mm, 15mm Macro, 24mm Probe, 58mm Macro APO, and 65mm Macro APO
May 14, 2026
improvedAdded experimental exact surface tracing for opt-in lens diagnostics
lensAdded three new Minolta lenses: AF 100mm f/2.8 Macro, AF 35-105mm f/3.5-4.5, and AF 70-200mm f/2.8 APO
fixFixed lens mount titling for C/Y mount
May 13, 2026
lensAdded six Canon APS-C lenses across EF-M and EF-S systems
improvedAdded Canon EF-S as a distinct lens-library mount filter
May 12, 2026
newAdded a lens-group motion chart for focus and zoom movement
lensAdds six new Nikon lenses: Z DX 16-50mm f/3.5-6.3 VR, Z DX 18-14mm f/3.5-6.3 VR, Z DX 50-140mm f/3.5-6.3 VR, AF-P DX 10-20mm f/5.6-6.3G VR, AF-P DX 70-300mm f/4.5-6.3G ED VR, and AF-P 70-300mm f/4.5-5.6E ED VR
May 11, 2026
improvedExpanded the Sellmeier glass catalog to 180 verified entries
fixConducted three glass audits across different lens models
lensAdded six new lenses: three Hasselblad lenses, two Olympus M. Zuiko lenses, and one Leica SL lens
May 10, 2026
fixConducted five glass audits across different lens models
lensAdded six new lenses: three Panasonic Leica lenses, two Olympus M. Zuiko lenses, and one Leica TL lens
May 9, 2026
improvedExpanded the Sellmeier glass catalog to 129 verified entries
lensAdded six new Hasselblad lenses: XCD 65mm f/2.8, XCD 90mm f/2.5, XCD 120mm f/3.2, HC 80mm f/2.8, HC 120mm f/4.0, and HC 150mm f/3.2
May 8, 2026
lensAdded three Fujifilm lenses: GF110mm f/2 R, GF80mm f/1.7 R, and GF120mm f/4 R LM OIS WR Macro; and three Sony lenses: FE 20-70mm f/4.0G, Planar FE 50mm f/1.4, and Planar T* 50mm f/1.4 ZA
May 7, 2026
improvedLimited field-based analysis views to each lens image-format diagonal
newAdded lens mount and image-format filters to the lens library
lensAdded Panasonic S 20-60mm f/3.5-5.6 and two Pentax 110 lenses: 24mm f/2.8 and 50mm f/2.8
May 6, 2026
fixFixed soft-focus control in aberration, bokeh, pupil, and LoCA views
lensAdded three Pentax lenses: DA 16-50mm f/2.8, DA 50-135mm f/2.8, and F 85mm f/2.8 Soft
lensAdded Sigma 40mm f/1.4 DG DN Art, Voigtlander Macro Apo-Lanthar 125mm f/2.5, and Apo-Lanthar 180mm f/4 SL Close Focus
May 5, 2026
fixFixed LoCA inset values when chromatic color channels are toggled
newAdded aberration control variable support for lenses with separate soft-focus rings
lensAdded Canon EF 40mm f/2.8, 100mm f/2.8 L Macro IS USM, Minolta Rokkor MD 45mm f/2, Rokkor MD 50mm f/1.4, and Varisoft 85mm f/2.8
May 4, 2026
improvedExpanded Sellmeier coverage for moldable Ohara glasses and Hoya TAFD40
improvedExpanded the glass catalog to 111 verified entries with priority ED and high-index glasses
improvedConducted glass audit across an additional five lens files, improved SD estimates for Nikkor Z 24-70mm f/4 S
lensAdded Panasonic S 35mm f/1.8, S Pro 50mm f/1.4, and Pentax FA 31mm f/1.8 AL Limited
lensAdded Sigma 50mm f/1.4 DG DN Art, Sigma 30mm f/2.8 for DP2 Merrill, and Vivitar Series 1 70-210mm f/2.8-4
May 3, 2026
lensAdded Sony E 24mm f/1.8 ZA, FE 35mm f/1.8 ZA, and FE 55mm f/1.8 ZA
May 2, 2026
lensAdded Sony FE 85mm f/1.4 GM II and FE 135mm f/1.8 GM
May 1, 2026
articleAdded beginner primers on cardinal points (F, H, N) and lens dimensions (EFL, BFD, FFD, hiatus, total track)
lensAdded Sigma 35mm f/1.4 DG DN Art and 85mm f/1.4 DG DN Art
improvedExpanded Sellmeier glass catalog from 65 to 92 entries, covering all Ohara and Schott glasses with 2+ element occurrences — more lenses now use full Sellmeier chromatic dispersion
Apr 30, 2026
improvedExpanded glass catalog to 53 vendor-verified Sellmeier entries (adding 15 Ohara dense-flint, ED, crown, and lanthanum glasses) and corrected 50+ glass misidentifications across 25 lens files — 696 surfaces now use full Sellmeier dispersion, up from 564
lensAdded Canon FD 50mm f/1.2, and lenses for the Nikon 35Ti, Sigma DP2X, and DP3 Merrill compact cameras
Apr 29, 2026
articleAdded From Achromat to APO: Chromatic Correction, Optical Glass, and the Evolution of Color-Corrected Lenses
newAdded cardinal element and first-order distance overlays to lens diagrams
lensAdded Carl Zeiss Jena Tessar 50mm f/3.5, Carl Zeiss Oberkochen Tessar 50mm f/2.8, and Sony FE 90mm f/2.8 Macro G OSS
Apr 28, 2026
improvedImproved chromatic ray tracing with ray-density controls, off-axis color fans, and LoCA readouts for clipped marginal rays
newAdded basic tilt and shift controls for supported Nikon perspective-control lenses
lensAdded Fujifilm Fujinon XF 18mm f/2 R and XF 23mm f/1.4 R and Carl Zeiss Olympa-Sonnar 180mm f/2.8 and Pro-Tessar 35mm f/3.2
Apr 27, 2026
lensAdded three Olympus OM lenses: Zuiko Auto-W 21mm f/2, Auto-Macro 50mm f/2, and Auto-Macro 90mm f/2 and Nikon Nikkor-S Auto 50mm f/1.4
Apr 26, 2026
improvedSplit Carl Zeiss into separate Jena and Oberkochen maker pages reflecting the postwar division
improvedAdded maker pages for Konica, Minolta, Pentax, Schneider Kreuznach, Sigma, and Sony
lensAdded three Carl Zeiss lenses: Contarex Planar 55mm f/1.4, Jena Pancolar 50mm f/2, and Planar T* 50mm f/1.4
lensAdded Olympus Zuiko Auto-T 85mm f/2 with floating rear-group focusing
newAdded shareable URLs for selected elements, overlays (glass map, chromatic, Petzval), bokeh preview, and analysis tabs
Apr 25, 2026
fixImproves accuracy of Canon RF and EF lens diagrams
newAdded aspheric deviation inspector: compare any aspheric surface to its spherical equivalent with zoom, exaggeration, and click-to-measure Δsag
lensAdded three Nikon Perspective Control lenses: PC NIKKOR 19mm f/4E ED, PC NIKKOR 24mm f/3.5D ED, and PC NIKKOR 45mm f/2.8D ED
Apr 24, 2026
improvedAdded an Olympus maker page with company history
lensAdded three Olympus fast normals: Zuiko 50mm f/1.2, 50mm f/1.4, and 55mm f/1.2
Apr 23, 2026
improvedImproved slider performance — analysis tabs and bokeh now update only after dragging stops
lensAdded Nikon AF-S 24-70mm f/2.8E ED VR, Nikon AF-S 70-200mm f/2.8E FL ED VR, and Nikon AF-S 80-400mm f/4.5-5.6E ED VR
lensAdded Canon RF 24-105mm f/2.8 L, Zeiss Biogon 21mm, and Distagon 35mm
Apr 22, 2026
lensAdded Canon RF f/1.2 primes and Voigtländer Nokton 35mm f/1.2
Apr 21, 2026
articleAdded Pupil Geometry article series covering entrance pupil, exit pupil, telecentricity, and more
improvedImproved element outline rendering, added a 10% boundary-gap clearance margin, and audited production semi-diameters
fixFixed Canon RF 24-105mm f/4 L close-focus behavior
lensAdded Canon RF 24-105mm f/4 L, Nikon Z 40mm f/2, and two Ricoh GR lenses
Apr 20, 2026
lensAdded Canon EF 50mm f/1.0L USM and Canon RF 85mm f/2 Macro IS STM
Apr 19, 2026
lensAdded Fujifilm XF 35mm f/1.4 R and XF 60mm f/2.4 R Macro
Apr 18, 2026
improvedImproved entrance and exit pupil overlay and button readability
lensAdded Leica Elmarit-R 28mm f/2.8 and Leica Elmarit 90mm f/2.8
Apr 17, 2026
newAdded Pupils analysis tab showing entrance and exit pupil position shift across the field
newAdded entrance and exit pupil overlay toggle to the diagram controls
lensAdded Canon RF 24-50mm f/4-6.3 IS STM, Nikon L35AF 35mm f/2.8, Nikon Nikkor Z 24-50mm f/4-6.3, and Nikon Nikkor Z 35mm f/1.2 S
Apr 16, 2026
improvedImproved bokeh, spherical aberration, and coma analysis accuracy and displays
improvedNew logo and social media card
lensAdded Fujifilm XF 16-55mm f/2.8 R LM WR, XF 16-80mm f/2.8 R OIS WR, XF 50-140mm f/2.8 R LM OIS WR, and XF 200mm f/2 R LM OIS WR
Apr 15, 2026
fixFixed semi-diameter shaping and rear-group clearance in the Canon RF 28-70mm F2 L USM
lensAdded Canon RF 28-70mm F2 L USM, Canon RF 28-70mm f/2.8 IS STM, Canon RF 24-240mm f/4-6.3 IS USM, and Canon RF 24-70mm F2.8 L IS USM
Apr 14, 2026
articlePublished the Focusing Architectures series: a landing page, seven primers on focusing strategies, and a full monograph with a hovering table of contents
lensAdded Nikon Z 14-30mm f/4 S, 24-70mm f/4 S, and 24-200mm f/4-6.3 VR
Apr 13, 2026
lensEnabled Nikon AF-S 14-24mm f/2.8G ED and AF-S 16-35mm f/4G ED VR with accurate front group proportions
improvedImproved element rendering for wide-angle retrofocus designs with per-surface semi-diameters
improvedImproved vignetting and distortion accuracy for extreme wide-angle lenses (>40° half-field)
fixCorrected the 200-500mm optical aperture range
lensAdded two Nikon AF-S zooms: 120-300mm f/2.8E FL ED SR VR and 200-500mm f/5.6E ED VR
Apr 12, 2026
fixImproved distortion and spherical aberration accuracy near the edges of the image circle
Apr 11, 2026
lensAdded four new lenses: Canon Serenar 28mm f/3.5, Canon Serenar 35mm f/3.2, Canon Serenar 50mm f/1.8, and Canon Serenar 85mm f/1.5
Apr 10, 2026
newAdded lens library custom filters with typeable min/max ranges and maker selection
lensAdded three lenses: Nikon Nikkor-N Auto 28mm f/2, Voigtländer Nokton 50mm f/1.2 (X-mount), and Nikon 28mm f/2.8 (28Ti)
Apr 9, 2026
lensAdded five Leica lenses: Summilux 28mm f/1.7 ASPH (Q-series), APO-Summicron 43mm f/2 ASPH (Q3 43), ELCAN 50mm f/2, APO-Summicron-M 35mm f/2 ASPH, and Summicron-M 50mm f/2 V5
Apr 8, 2026
improvedImplemented uniform aspect ratio scaling — eliminates lens shape distortion from independent horizontal/vertical zoom
lensCalibrated Voigtländer Ultron 28/2 semi-diameters to Cosina's published cross-section diagram
lensAdded Vivitar Series 1 35–85mm f/2.8 VMC, Fujifilm XF 90mm f/2 R LM WR, and Fujinon XF 56mm F1.2 R
Apr 7, 2026
lensAdded Canon FD 35mm f/2 S.S.C., Nikon AI Nikkor 135mm f/2, Nikon AI Nikkor 135mm f/2.8, and Vivitar Series 1 200mm f/3.0 — four Sonnar-based and retrofocus designs
Apr 1, 2026
lensAdded CANON new FD 50mm f/1.2 and VOIGTLANDER 50mm f/1.2 for X-Mount
Mar 31, 2026
lensAdded Nikon NIKKOR Z 35mm f/1.8 S and NIKKOR-N 5cm f/1.1
Mar 30, 2026
fixCorrected field curvature direction labels and Petzval shift sign
improvedStandardized analysis terminology to parabasal/real-ray and fixed coma axis orientation
lensAdded Nikon NIKKOR Z 14-24mm f/2.8 S and Canon RF 15-35mm f/2.8 L IS USM
Mar 29, 2026
fixFixed article navigation so pages open at the top instead of preserving prior scroll
articleAdded Heliar History article
newAdded zoom and pan controls for infinite-resolution diagram inspection
Mar 28, 2026
newAdded chromatic field curvature chart with per-wavelength R/G/B focus traces
newAdded sagittal coma section with x-intercept fan chart to aberrations drawer
fixFixed center-field curvature baseline to use real traced focus instead of nominal image plane
newAdded real sagittal ray analysis across aberration views
newAdded field curvature and astigmatic difference analysis
Mar 27, 2026
improvedStrengthened SEO metadata, sitemap freshness, and social card data
lensAdded Fujifilm as a maker — XF 80mm f/2.8 Macro OIS WR and XF 50mm f/1.0 R WR
lensAdded Canon standard and telephoto zoom lenses
lensAdded Nikon AF-S Micro NIKKOR 105mm f/2.8G IF-ED
newAdded coma analysis with 2D point-cloud preview to aberrations drawer
newAdded meridional coma field footprint analysis to aberrations drawer
newSeparated distortion analysis into its own dedicated drawer tab
newAdded vignetting and relative illumination analysis tab
newAdded longitudinal spherical aberration profile chart
newIntroduced analysis drawer — slide-out panel for optical aberration analysis
newAdded spherical aberration computation engine with real-ray tracing
improvedMade analysis drawer tab rail scrollable on narrow screens
improvedRelocated analysis button to lower-left corner of lens diagram
fixFixed optical surface overlap in Canon RF lenses
fixFixed geometry validation errors in Nikon AF-S 105mm f/2.8G
fixStabilized spherical aberration real-ray chart rendering
fixFixed distortion calculation to correctly project chief ray to image plane
fixCorrected semi-diameter values across the Nikon Z lens lineup
Mar 26, 2026
newAdded support for variable-aperture zoom lenses (e.g. f/4.5–5.6)
fixFixed glass interpenetration in Nikon Z lenses at close-focus distances