FM Review: Voigtlander 35mm f/1.2 Nokton Aspherical
It's definitely a trade off between resolution, contrast and rendering. The Zeiss 35/1.4 ZM for example is not under corrected for SA and it's noticeably sharper and more contrasty. -- however rendering can be harsh at the transition zone. So, depending on the subject, the Zeiss may work better but imo for environment portraits, I prefer a more softer look with the option to stop down the lens for better correction.
When you type 'optimal', do you mean that it takes near full advantage or full of the sensor, or that this is just the best aperture, to get the most out of the lens optically?
I have been considering a 35mm for a while for landscapes, street and sometimes but rarely some portraits, but I'm not satisfied with the current options. I actually just bought the Sony 35mm f/1.8 for some casual street photography, but I'm not quite satisfied, and I prefer the look and feel of Cosina lenses for sure, especially for landscapes. I might pair it with a future Sigma 35mm f/1.4 DN (and also pair this with the great 85mm DN) if they release one. The Sony never gets outstanding in the corners. Would you say that this 35mm f/1.2 is better than the Loxia 35mm on the a7R IV? I heard that it isn't really shining on that sensor, but it's just tempting, as it can be bought pretty cheap used (pretty much a trade for my Sony 35mm f/1.8).
I was going to wait for a CV 35mm APO to replace my 50mm APO and pair it with my 65mm APO, but I'm not so sure. I might just keep the 50mm, get this 35mm f/1.2, and a longer 1:2 macro than the 65mm (I have tried the 110mm, but not sure if it's for me. I rarely need 1:1, and it's just not practical for me when I mostly just photograph handheld and want to get just a bit close). I like to have 35mm, 50mm and 85mm all covered, as I don't use any zooms but a ultra wide one and longer telephoto. Hoping for either a 90mm,135mm or even longer APO. If the 35mm f/1.2 SE is outstanding at f/5.6 all around, then I will just get that, as I also like more of a vintage blur sometimes when I don't use something like a near-perfectly corrected f/1.2 - f/1.4, which makes it a some of a dual-purpose lens as some have mentioned already.