7artisans 25mm F1.8 Manual Focus Prime APS-C Fixed Lens for Sony Emount Cameras Like A7 A7II A7R A7RII A7S A7SII A6500 A6300 A6000 A5100 A5000 EX-3 NEX-3N NEX-3R NEX-C3 NEX-F3K NEX-5 NEX-5N (Black)

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I haven't really "tested" the bokeh, mainly because that's pretty low on my considerations in lens performance, but what I've seen through the finder has been smooth, with the 12 blade aperture providing those round blobs so many people adore, even when this lens is wide open. What I can see from mechanical design and composition - TTArtisan lens are manufactures in a very different way, so yes most likely it is very different factory than 7Artisans lens. Though it's just my personal observation from disassembly of dozen lens models. Thank you @ChangshaNotes for sharing interesting details about founders split, that makes sense, and looks like that was a beneficial decision. DoF - well if this really is your critical need - then just get a legacy 50mm F1.8 lens (becomes a 100mm equivalent on an MFT camera) and at 2 meters focus distance the DoF will be only 8cm while the kit zoom at 42mm will have a DoF of 37cm at F5.6 and 2 metres focus point. Cons: Bad edge and corner performance, bad distortion, bad quality control, bad assembly quality, focus element drifts out of focus It can be used on full-frame cameras like the Sony A7r III, but it will only have a circle of projection large enough to cover the APS-C portion of the sensor and you would need to put the camera in Super 35mm crop mode.

Center sharpness is very good even wide open and hard to discern between the 7artisans vs. my Sony FE28mm F2.0. However corners are a complete different story. They are very soft wide open with vignetting and progressively get better to F8 - where it's pretty much gone. In terms of image quality, I actually kind of like it. It’s a lot like using those old 35mm lenses adapted to a full-frame camera before they really had computers and advanced ED and aspherical elements to get those corners under control. With this lens, the corners and edges are worthless, so it will function better as a micro four-thirds lens unless you don’t mind soft corners. I personally don’t. What you get with the 7artisans 25mm f/1.8 is a new lens that looks and feels vintage (maybe early-1980’s-ish), and produces results that have a vintage quality. It’s not precision engineered like most modern glass, so it has flaws, and those flaws give your photographs character, something that’s missing from most modern lenses. Whether or not that character is something you want for your photographs is for you to decide. I personally appreciate it. I also appreciate manual-focus, and those not used to it might not care for it. The focus ring has a throw of about 100° which makes it a little difficult to get precision focus, but this is fairly common for a manual 35mm lens.Center sharpness is very good, it’s actually sharper than both the Fujinon 27mm f2.8 and the Fujinon 23mm f1.4 lenses, but corner and edge sharpness are very poor. I just wanted you to know how I feel about the lens. It's not a Leica nor is it probably as good as most fast primes in its focal length but I just have fun taking it out for a spin so to speak. As you can see from the three panel image above, the 7artisans is much brighter, than the other two lenses. I haven’t shot any concerts this week but I am confident this lens will perform fairly well. Final thoughts… For micro-four-thirds shooters, this lens will be a lot of fun. Most of the issues with the corners and edges will be gone because of the crop factor and you’re left with a crazy sharp lens with nice contrast if you can keep it in focus. Pros: Very sharp in the center, good contrast and color, metal construction, fast, small, cheap, nice bokeh

I received my lens on the 21st of this month when I watched the solar eclipse from my front walkway :-). The kit lens from either Lumix or Zuiko is excellent at wide to mid range - it only falls off in resolution near the 40mm zone. The kit has AF, anti-shake mechanics, signals distortion and vignetting correction to the camera body (and to programmes such as DXO if you shoot in RAW). So why buy a manual lens then? I'm not going to do any sort of lab style testing, since that isn't relevant to the purposes for which I bought this lens. Color is also very nice and natural with the 7 Artisans. There are no strange shifts or tints like with many third-party lenses.

The 7artisans 25mm f1.8

There are a number of inexpensive prime lenses coming out of China. After purchasing the Meike 35mm f/1.7 and, for the most part, really liking it, I thought I’d try the even cheaper 7artisans 25mm f/1.8 for my Fujifilm X-Pro2. Can a low-end lens be any good? My choice? Well since my initial rush of trying it out, the Chinese small format lens sits in the camera bag and is increasingy being left at home - while my Cosina 24mm F2.8 macro-focus lens (with a big "telephoto" length lens hood) sees lots of use. And your choice................?

The focus ring throw is annoyingly short. Which makes fine focusing a bit of a struggle. If you’re stopped down to f5.6 or higher, it’s not so bad. When the aperture is wide open, it’s a pain.was founded by seven photographers who wanted to make lenses, so they did. They have several different offerings, all of which are very inexpensive yet intriguing. The 25mm lens for Fujifilm has an equivalent focal length of 37.5mm, which is slightly less wide-angle than the X100F, but a similar focal-length.