7Artisans WEN 35mm f/5.6 Fixed Aperture Golden Pancake Prime (I was impressed by their 28 1.4 so wondered how this would be, spoiler: it's better on gfx than it)
(Cross posting from the pancakes thread)
Pros
-Excellent build quality, all metal doesn't feel cheap at all
-Covers GFX sensor quite well (vignetting is soft and can be corrected pretty easily)
-Has built in lens cover/cap thingy, opening position is calibrated to infinity very convenient
-Flare control seems good and pretty sharp!
Cons
-Due to nature of focus mechanism, there is obvious focus shift
-Some distortion
-Some CA (I shot BW, but I definitely noticed it on backlit stuff like branches and some edges of objects)
-Can't screw on filters
-Makes me want to sell my Sigma 40 1.4