![objektiv mk1 objektiv mk1](https://d144mzi0q5mijx.cloudfront.net/img/F/T/FT-Twisted-Ontogenesis-Demoversion_example_3.jpg)
Updating the firmware of the lens significantly reduced the noise, but I’m still not sure how durable the aperture system is. At least on my sample the aperture blades were aligned lousily and changing the aperture made a lot of noise. The lens lacks an aperture ring so the aperture needs to be changed with the camera.
OBJEKTIV MK1 MANUAL
But in the end I liked the manual focus experience a lot, and I think it is one of the best implementations of focus-by-wire so far. Furthermore, the focus throw is a tad long too, near 300°. The focus ring runs smooth but resistance is a bit on the high side for me. The focus ring is very wide with a nice texture and feels very nice. Most, but not all markings are engraved and filled with paint. The lens is made of metal and glass only. The Viltrox PFU RBMH 85 mm f/1.8 STM AF is heavy and feels very solid. Viltrox 1.8/85 | f/1.8 Handling / Build Quality
![objektiv mk1 objektiv mk1](https://d144mzi0q5mijx.cloudfront.net/comm1/O/B/Objektiv-Mk1-Medium-Italic.png)
Viltrox offered me to pay the netto loss after selling the lens when the review is done. I bought this lens at full retail price from my own money. When bought at one of the bigger camera stores in Europe it will set you back at 379€ but you don’t risk customs hassle.
![objektiv mk1 objektiv mk1](https://d144mzi0q5mijx.cloudfront.net/img/S/C/Scissor-Cuts_example_2.jpg)
This helps us keeping the blog running, thank you ? Link marked with * are affiliate links, we will receive a small commission if you buy something via these links and it won’t cost you anything else. The Viltrox PFU RBMH 85 mm f/1.8 STM AF can be found new for around 310$ at * or 289€ at *. As far as I know the optics are the same and the main difference can be found in the housing. Next to the AF version there also is a manual focus version of this lens.