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https://sansmirror.com/lenses/lens-database/other-lens-makers-autofocus/ttartisans/ttartisans-40mm-f2-lens.html
TTArtisans 40mm f/2 Lens Specifications | Sans Mirror | Thom Hogan
TTArtisans 40mm f/2 autofocus lens for mirrorless cameras
40mm f 2lens specifications sansmirror thom hoganttartisans
https://www.zsystemuser.com/z-mount-lenses/third-party-lenses/third-party-manual-focus/astrhori-lenses/10mm-f8-ii.html
Brightin Star 12mm f/2 Lens Specifications | Thom Hogan
Brightin Star 12mm f/2 lens for Nikon Z-mount
f 2 lensspecifications thom hoganbrightin star12mm
https://dslrbodies.com/lenses/third-party-dslr-lens-datab/other-lenses-for-nikon/mitakon/mitakon-85mm-f2.html
Mitakon 85mm f/2 Lens Specifications | DSLRBodies | Thom Hogan
Mitakon 85mm f/2 lens for Canon EF Nikon F mount
85mm f 2dslrbodies thom hoganlens specificationsmitakon
https://www.zsystemuser.com/z-mount-lenses/third-party-lenses/third-party-autofocus-lense/ttartisans-lenses/ttartisans-75mm-f2-lens.html
TTArtisans 75mm f/2 Lens Specifications | Thom Hogan
TTArtisans 75mm f/2 autofocus lens for Nikon Z mount
75mm f 2lens specifications thomttartisanshogan
https://petapixel.com/2026/04/21/panasonic-introduces-ultra-compact-lumix-s-40mm-f-2-lens-for-l-mount/
Panasonic Introduces Ultra Compact Lumix S 40mm f/2 Lens for L-Mount | PetaPixel
Panasonic has announced the Lumix S 40mm f/2, a compact and lightweight prime lens with a natural field of view.
40mm f 2ultra compactmount petapixelpanasonicintroduces
https://petapixel.com/2026/02/21/you-probably-dont-need-an-f-1-2-lens-the-law-of-diminishing-returns/
You (Probably) Don't Need an f/1.2 Lens: The Law of Diminishing Returns | PetaPixel
There are some scenarios where an f/1.2 maximum aperture is desirable, but I think this is rarely the case.
f 1 2diminishing returnsprobablyneedlens