7Artisans is one of those Chinese lens manufacturers that have popped up in the last 10 or so years. I played around with 7Artisans on the EOS-M mount, and they were pretty fun bang-for-the-buck lenses, but quirky ergonomics.
7Artisans is known for its manual focus, and manual aperture lenses, and this 9mm F5.6 full-frame lens is no different. However, with 16 elements and 11 groups, it’s not exactly a simple lens either.
The craziest thing about this lens? It should cost somewhere around $375 if this specification sheet is correct. What grabbed my attention was the MTF data. If this is actually what this lens can do, it’s a pretty good lens. Yes, it’s all manual but who needs AF at 9mm anyways? As an example, the widest Canon-made RF lens (Canon RF 14-35mm F4L) falls off more to the corners and has greater astigmatism according to the MTFs – and it’s 14mm versus 9mm.
Craig actually has the lens, so hopefully, we’ll be updating this post with some real-life examples.
This has the makings of a very interesting lens for the RF Mount.
Specifications
| Lens specifications | |||
|---|---|---|---|
| release date | September 25, 2023 | Initial price | 2790 yuan |
| mount | E/Z/RF/L | Minimum shooting distance | 0.2m |
| format | full size | Maximum shooting magnification | not clear |
| Focal length | 9mm | Filter diameter | incompatible |
| Lens configuration | 16 elements in 11 groups | Image stabilization | – |
| open aperture | F5.6 | Teleconference | – |
| minimum aperture | F22 | coating | not clear |
| aperture blade | 5 sheets | ||
| Size, weight etc. | |||
| size | φ70×86mm | Dustproof and splashproof | incompatible |
| weight | 463g | AF | MF limited |
| others | No electronic contacts/non-fisheye | ||
Elements / MTF
Source: Asobinet.com
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