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 p.88 #4 · which lens has the most 3D POP? | |
Im used to 24mm but Im open to other lenses as well.
Other lenses from that era are the Batis 25mm and 85mm that I own. I like them a lot but they are a little different.Also th Loxia 35mm and 50mm that I will have to try some day .
I think I will be better with AF for what I do , but it will be really interesting to see a comparsion of the 55mm and the 50mm simera with the same subject .
philip_pj wrote:
Not many, I suspect. Firstly, they are all going to show their signatures, something each has as its distinct way of seeing the compositions. And that makes it hard to compare, straight away. How much prototype testing do these lens makers do for actual use? We have no idea. They certainly miss things in design, Dr Nasse was employed by Zeiss to 'find problems'. Then, none of us have enough experience with the contenders, with a lot of dead ends possible, almost inevitable.
I start by looking at what the maker was producing at the time, and the general configuration used. The 55mm is a kind of orphan, it was released with one other lens, the tiny 35/2.8 (120g). This little one receieved mixed reviews on release, and that is another sign you might be looking at a good one. It has no fewer than six aspherical surfaces in a 7/5 design, similar to the 55mm at five asph surfaces in the same config of 7/5.
Are you a 35mm person? might be the question. Sony had a lot of help from Zeiss back then, not just coatings either - these were the days of the RX1 too. So their formula ticked off some well-regarded results, still resonating today. They envisaged mirroless as lightweight pseudo Leica M cameras, and lenses also.
Most want or need AF, but the Simera 50mm does it all for me, in a focal length that can be troublesome for image depth. Worth a look if it suits you; it's an improved Summilux with a proper iris and the Chinese glass responsible for their recent success.
Thypoch did something similar to Zeiss when CZ reconfigured the 21mm Distagon for digital, adding one more element for the ZE/ZF series. Thypoch separated the last two elements of the Sumilux 50mm (8/5 to 8/6) and expanded the floating group. But their heavy lifting is done by HRI glass, just one ED and just one asph (a legacy from the Leica design).
Leica re cagey about the glass in the Summiluxes, saying only: 'special glass types with unique refraction properties', by which they refer to HRI, which is expensive but necessary for their ultra fast lenses also. Many glass types these days have high refraction capabilities, enough for makers to not refer to it as such, and that is why I call them 'dedicated HRI' when they do.
The Chinese love the stuff, it's the key difference from the Japanese designers' use of ED/APD and the Germans who heavily use aspherical surfacing plus APD. Many different methods of correction, all work obviously, but ED has to be kept in check by HRI. ...Show more →
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