The 50 f1.2 preforms way better than the 50 f.1.4 and 50 f1.7 at f1.2.
The same can be said for the f1.4 vs. the f1.7 at f1.4.
Toralf Lund wrote:
>>>At any rate, perhaps a comparison with Canon or Nikon would be more
>>>relevant. I've noticed that both these producers offer 50s that are
>>>considerably less expensive than the FA50/1.4.
>>>
>>>
>>>
>>Canon and Nikon both produce very low cost 50mm lenses in the f/1.8
>>and f/2 range. While they're not 'bad', they're nowhere near as good
>>as the FA50/1.4 on rendering, or even the Pentax 50/1.7 series. The
>>comparable lenses are the Nikon 50mm f/1.4D AF lens at $280, and a
>>Canon EF 50mm f/1.4 USM at $295 (B&H Prices).
>>
>>
>Yep. Prices around here are higher, as usual, but in relative terms the
>situation is not that different. I think the Nikon may be bit closer to
>the Pentax (and further away from the Canon) in price than indicated
>here, though...
>
>
>
>> I've used both of them.
>>These are built with the same mount quality as the Pentax FA50/1.4
>>but aren't quite as good on imaging performance.
>>
>>
>OK.
>
>
>> The only other 50mm
>>f/1.4 lenses in the 35mm SLR range that I think are comparable in
>>performance was the Contax mount Zeiss Planar and the Leica Summicron-
>>R, both of which are substantially more expensive.
>>
>>Pentax continues to offer the budget minded A50/2 lens at $70. It's
>>nowhere near the performance of the f/1.7 and f/1.4 lenses, but it's
>>still a good lens.
>>
>>
>>
>So it's also a lot poorer than my A50/1.7? That's a bit interesting. The
>shop where I bought this lens used a couple of years ago also had an
>A50/2.0 in similar condition, and they had actually priced it higher...
>
>And there is also the A50/1.2, of course, but that's 2-3 times as
>expensive as the FA50/1.4, and perhaps doesn't perform quite as well
>besides the higher speed?
>
>By the way, how about the new(ish) one from Voigtlander/Cosina? Some of
>their lenses (not sure about the 50mm) seem to have a very good
>reputation...
>
>- Toralf
>
>
>
>
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