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tsdevine wrote:
So the definition of a great lens in your mind is that it must be a GM or L? I think my CV 35 & 50 APOs are great...and I sort of had the impression you thought they were great too.
The Sigma 40/1.4 is near Otus quality from an optical perspective, but it's big and heavy. But I consider it a great lens.
I mean this gets silly....so relying on correcting the breathing in the camera makes the lens great? (Again, not saying the GM 35 isn't a great lens. But there are always tradeoffs in lens design, you just like the tradeoffs made for the GM 35.)
In any case, I understand (now) what your litmus test is for great. And at the end of the day, it's your thread. Partway through the thread you seemed to disqualify all 3rd party lenses, and consistently mentioned that there was no GM 40 or 40 L.....so it just seems like starting off by saying "Why isn't there a GM 40 and 40 L?" and we might have avoided giving you other great 40mm lenses that at the end of they day aren't a GM 40 or 40 L and don't qualify as great.
Anyway....I'm tired, and it's always dangerous posting when I'm tired.... Seems to me that the Batis 40 would be the closest thing to what you would consider a great lens. It's slightly slower than the GM's, and doesn't have the aperture selection and button the GM's do. And yes, it has that odd rubber focusing ring. But it produces beautiful images.
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I refer to GM or L as usually they represent the most well rounded pinnacle lenses for these platforms, a combination of optical excellence, fast F/T stops, mechanical and auto focus performance, reasonable weight. This may not always be true, but for example 24GM and 35GM seem to be in their own league today if you consider these qualities all together. Individual rendering preferences should not change that. I give credit to 35GM but, as I said earlier in another thread, my eye sees its images as 'not engaging enough' as so much detail is retained throughout the frame, transitions are smooth and mind needs to make effort to see what to focus on.
I did not bring up the breathing issue. I only focus on stills, so not being corrected for breathing is not an issue for me. Looks like Sony will rely on computational breathing compensation for its photography lenses. I understand, it works well enough so additional weight and money can be saved as a result of this design compromise.
Don't want to disqualify all 3rd party lenses for them being 3rd party. But as of today, all those lenses designed in such a way that they do not claim 'definitive' status.
As to Sigma - I feel like Otus showed them this path: you create huge and heavy lens which performs at very high level optically, but usability is sacrificed. As a result, how many of these huge lenses are sold and actually shot outside of testing cycle /studio environment?
As to 35 and 50 APO-L, I too believe them to be great lenses. I would still use 50 APO-L before 50GM for everything but people/low light. But these were not brave enough to go to 1.4 or provide AF, so I personally cannot consider them as definitive.
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