>>4305993arri scientists said that if you laser finish and polish glass elements with main focus on sharpness and CA control, you get clearer glass and better sharpness and CA control but start to drastically lose contrast. they said it took them decades to figure out a technique where they can push out maximum sharpness out of a lens, without losing on contrast and that they had to make custom made machinery to achieve that.
aside from nikon, canon and voigtlander (and some sony glass and shitty old lenses) theres literally no one that would be considered competition to them in the current market when it comes to contrast retention. sigma, tamron and samyang are still copying old zeiss glass designs 1to1 and dont have the budget to buy expensive machinery to do what nikon, canon, sony and voigtlander are doing, so they just push for sharpness, sharpness and only sharpness....... laowa, 7artisans and others in the same bunch are stuck in early 2000's, copying either each others terrible glass designs or trying to copy sigma, tamron or samyang (who are copying old zeiss designs) and just keep failing miserably....... mitakon (and fuji) have like 5 good lenses that accidentally turned out to be on the level of nikon, canon, zeiss, leica...etc. and their budgest are dropping lower and lower each year. (although, mitakon just had some huge investment waves in 2021 from random chinese investors and all lenses they made since were god tier so we will see what happens next...)
and thats about it... we need a new lens manufacturer, because sigma, tamron, samyang and the rest are simply not it...
and voigtlander and mitakon make mainly manual focus lenses..
i hate ''gearfagging'' about lenses but ive been stuck doing portraits and weddings with my 3 zeiss otus lenses for 10 years and my 2 nikkor lenses for 16 years now..... they look run down more than a prostitutes vagina and im getting bored being forced to shoot with the same 5 lenses for ALMOST TWO DECADES NOW
