Announcement: AstrHori GF 75mm 1:4

In the summer of 2023, the AstrHori GF 75mm 1:4 lens was announced.

Astrhori GF 70mm 1:4

Astrhori GF 75mm 1:4

Basic properties

  • For medium format mirrorless cameras with bayonet mount Fujifilm G и crop factor Kf = 0.79
  • Focal Length: 75mm (EGF 59 mm)
  • Relative Hole: 1: 4-1: 22
  • Important: you can use relative aperture 1:2.8 (indicated by a yellow dot on the aperture control ring) at your own risk (due to a significant deterioration in image quality)
  • MDF: 0.82 meters
  • Optical design: 8 elements in 6 groups, including 2 HRI and 2 ED
  • Aperture: 9 blades
  • Filter Diameter: 67 mm
  • Weight: 635 gram
  • Price: about $330. Prices for AstrHori lenses can be viewed on Aliexpress from an authorized dealer


AstrHori (RockStar R)

Medium Format FujiFilm GF/GFX:

Full frame:


AstrHori/RockStar lenses can be found on Aliexpress from an authorized dealer.

All mirrorless medium format cameras FUJIFILM GFX with sensors 43.8 X 32.9 mm (crop factor Kf=0.79X)

  1. FUJIFILM GFX 50R [September 2018]
  2. FUJIFILM GFX 50S [September 2016]
  3. FUJIFILM GFX 50S II [September 2021, AliExpress]
  4. FUJIFILM GFX 100 [May 2019 + IR modification]
  5. FUJIFILM GFX 100 II [September 2023]
  6. FUJIFILM GFX 100S [January 2021, AliExpress]
  7. FUJIFILM GFX 100S II [May 2024]


Third party lenses with GFX mount

  1. MITAKON: 28/5.6 | 65/1.4 | 85/1.2 | 135/2.5 | 135/1.4 | 200/4 Macro
  2. laowa: 15/4.5 Shift | 17/4 | 19/2.8 | 20/4 Shift | NA0.5 Supermicro | 100/2.8 T/S 1X
  3. AstrHori: 12/2.8 Fisheye | 40/5.6 | 55/5.6 | 75/4
  4. TTArtisan: 11/2.8 Fisheye | 90/1.25
  5. Kipon: 75/2.4
  6. Irix: 45/1.4

Autofocus adapters and manual converters


Comments on this post do not require registration. Anyone can leave a comment. Many different photographic equipment can be found on AliExpress.

Material prepared Arkady Shapoval. Training/Consultations | Youtube | Facebook | Instagram | Twitter | Telegram

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Comments: 14, on the topic: Announcement: AstrHori GF 75mm 1:4

  • Arthur

    So what is fear and risk?

    • Rodion

      Apparently, in a colossally increasing spherochromatism and aberrations of higher orders.

      • sandro

        The strangest Chinese. They couldn’t make a normal tessar 80 / 2.8 for this matrix, if you really want to sell glass for GFX ...

        • i is glorious

          Yes, strange. AstrHori is the only modern manufacturer who screwed up when designing an 85 / 1.8 portrait lens: not only does it scale in the blur zone (already at a growth distance), it also weighs more than 600 grams: this is more than some 85 / 1,4 .

          • Rodion

            So it feels like some kind of self-taught optical circle, who started with a plastic rockstar 10/8, and now they got to the “optical DJ”, who makes optics for 7artizins and tartisan.

            • Andrii

              It seems that the optical dj was playing zomz. Competition and all the same))).

              • Arkady Shapoval

                It's just that Nolan is filming an Oppenheimer sequel.

              • Rodion

                The governor of the Moscow Region said with his own lips that ZOMZ has not been producing optics and mechanics for a long time))))))))))))

            • sandro

              Their idea for a compact 18/8 shift wasn't bad.
              Only for some reason the shift was called full-frame, but in fact it only worked under crop ...

  • Igor

    Nothing is clear

  • Andy From Far Away

    Because of this yellow dot, there is a feeling that the company is manufacturing “some” lens, and only then finds out what it will be. The series is photographed and then the working aperture range and focal length are marked with a felt-tip pen on the body.

    • Arkady Shapoval

      More often they forcibly prohibit the use of open without indicating it. It turns out that the user sees an already always covered aperture, which gives an acceptable image quality, but thinks that the lens is good when open.

      • Andy From Far Away

        In principle, of course, there is nothing wrong with this practice, as long as the optics work and correspond to what is stated in the name of the lens. Quite a lot of manufacturers solved optical problems due to “excessive glass diameters (Canon, Zeiss, etc.), so that these lenses conditionally work on larger SF sensors, covering them with some flaws in the corners. To me, as the end user, it doesn't matter how the manufacturer solved these or those technical problems, as long as the result suits me. And of course the price...

  • Świetny artykul. Naprawde dobrze napisane. Wielu osobom wydaje się, że mają odpowiednią wiedzę na ten temat, ale tak nie jest. Stad też moje ogromne zaskoczenie. Po prostu super artykul. Będę rekomendował to miejsce i regularnie odwiedzał, by zobaczyć nowe artykuły.

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