Sony E 50Mm F 1.8

[Sony E] Works great with a vintage Zeiss (Voightlander) Ultron 50mm F/1.8 on a Sony A7R5. It also looks like it was made for the camera.

[1/2.7"] Incredibley smooth bokeh! Without a doubt the best at this price. Very sharp, too, capable of outresolving the A7RIV when stepped down. Far better than the Sony 50mm F/1.8. Optically I'd compare this to my Sony ZA 55mm F/1.8! Equally sharp, and even better aberration handling compared to the ZA 55mm. The bokeh from this lens is what's truely special. The optical design seems to be based on the classic Sonnar layout, but with a few extra elements to remove abberations. The end result is you get bokeh that's far better than any vintage SLR lens, completely blowing away every 50mm on any SLR and even DSLR, even Sigma's own Art series. This is possible due to the shorter flange distance on mirrorless cameras, allowing the sonnar design to fit without extending into the mirror box! This is truly a special lens, and the only comparable lens are the GM and ZA Sony lens. Nothing else comes close.

[Autofocus] Good sharpness, build quality, and autofocus is functional. In my opinion, a better value than Sony's 50mm f/1.8.

[Manual Focus] I got this lens as an alternative to switching from Canon to Sony. It's a great portrait lens just as the 50mm 1.8 from Canon was. I really enjoy using it with my Sony a7c and its peaking setting to check I've got my focus where I want it.

[Canon RF] I bought several 7 Artisan lenses - this fits the Lumix G95 far better than the 50mm F.095 for infinity / distance shooting. It is remarkably good glass, solid build and light weight. It is certainly sharp at slightly before F2 and onward. I have found it to be a very useful bit of Kit. The two photos show full frame and then a crop of the Moon - at F 8 - 10. It also has very good color rendition. At the price point it is an incredible buy.

[43 mm (Front)] I use this on a GH5 and I'm impressed. Sharpness at f.95 looks very good, especially center of frame. I was using the Canon 1.8 STM 50mm with a Viltrox EF-M2 lens adapter, which allowed me to stop down to f1.3, but the image I was getting was fairly soft. Bought this to replace it, albeit a bit wider than the 50mm (1.6x crop w/ Viltrox) but the image looks much sharper. Was also impressed with the build quality. It's a compact lens but it has some weight to it. Feels very sturdy and aperture and focus rings turn smoothly with clickless aperture. All and all, I would definitely recommend for someone that may be a little skeptical because of the price. Oh yeah, the little case it ships in is a nice touch, too.

[58 mm (Front)] Youd think for the price this would have some flaws. At f.1/4 its pretty sharp at f.2 its razor sharp. I did not look at the outer edges of the frames as Im concerned with my subject. Good buy for the price.

[0.3 lb] Just the tweak I needed with my Canon 1.8 50mm lens. Great price too!

[Canon EF] Giving this 5 stars because these do what they are designed to do. I was using these with my 70D 50mm 1.8 & 16-35 II. At first the 13mm tube did not establish a connection to my lens but the rest worked fine. After reconnecting my lens 3 times it worked and works every time. The build is solid and they fit firmly to the body and lens. For just under $50 this is a great buy.

[0.05 lb] I am satisfied with the Fotodiox M39 to Leica M adapter. I'm using it with a Canon 50mm f/1.8 LTM lens and the Ultron 35mm f/1.7 LTM lens on a Bessa R4m Leica M mount camera. The adapter is solid and exhibits no play. Infinity focus is not a problem.