The Voigtländer NOKTON 50mm F1 Aspherical RF-mount lens is expected to weigh 650 grams
https://www.cosina.co.jp/news/cp2023-reference-exhibit/ The EF 50mm f/1.2L USM lens with the Canon EF-EOS R mount adapter (both caps removed, lens hood not mounted) weighs exactly 701 grams. This is only 51 grams difference to the disadvantage of the Canon lens. Only that the Canon lens has AF, and even with the sick prices we have in the world now, it will be cheaper than this Cosina product.
The cost of buying a new copy of the EF 50mm f/1.2L USM lens in Poland in stores with the status of an official Canon store is on average 7999 PLN, used on online auctions is on average 4400 PLN. The cost of buying a new Voigtländer NOKTON 50mm F1 Aspherical lens with VM mount (Leica M) from an authorized distributor of this brand in Poland is 8199 PLN, and in the case of the RF mount version I would not expect a lower price.
As a matter of fact, it is not known whether the version with the RF mount will go on sale at all. Why? Well, somehow I don't see it in the catalog for 2023
https://www.cosina.co.jp/wp/wp-content/uploads/catalog/v-catalog.pdf
I dug through the entire
Voigtländer NOKTON 50mm F1.0 Aspherical group on Flickr, and pulled out all the photos where someone attached this lens model (I have no idea what mount) to the R6:
Richard Kralicek's photos created with combination Canon EOS R6 camera plus Voigtländer NOKTON 50mm F1 Aspherical (probably with VM mount (Leica M)) lens.
flic.kr
If this lens model is released for sale, am I going to buy it? I don't think so. I'm tired of manual lenses. I am currently trying to sell used manual lenses Carl Zeiss Planar T* 1.4/50 ZE with EF mount and Super Reflecta 55mm f/1.4 with M42 mount at very good prices through our Polish forum of users of Canon devices, and no one is interested in them. On a daily basis, when it comes to the 50mm focal length, I use the EF 50mm f/1.2L USM and RF 50mm F1.8 STM lenses.