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发表于 2007-12-11 14:28:47
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中文意思我看懂了
我现在把它翻译成英文
The Pentax SMC FA 35mm f/2 is a great performer and even better - it doesn't cost you an arm and a leg. At f/2 the optical quality is already on a very good level and if you stop down a bit it easily reaches excellent to outstanding resolution levels. Neither distortions nor vignetting are real problems in field conditions. CAs (color shadows at the image borders) are well controlled for a lens in this focal length class. At f/2 you may run into purple fringing in very critical (extreme contrast) scenes but simply try to avoid large apertures in this case. The bokeh (out-of-focus blur) seems very smooth and buttery. The build quality of the lens is good although not comparable to the Pentax Limited series. All-in-all highly recommended!
The Pentax SMC-FA 31mm f/1.8 AL Limited is an excellent lens. It is already sharp at f/1.8 and razor sharp at medium apertures. Distortions and CAs are very well controlled. On the downside it vignettes quite a bit at f/1.8 so the ultra-large max. aperture takes its toll here. The bokeh (out-of-focus blur) is very smooth and buttery which is fairly unusual for a lens with aspherical elements. Typical for all Limited lenses the build quality is exceptional and it is a joy to use the lens. It also shares another, rather unfortunate, characteristic with its cousins - a high price tag. Quality comes at a price but 900-1000/US$ seems a bit over the edge but then it is probably just another example of diminishing returns upon higher investments. Nonetheless it is refreshing to see that Pentax focuses on quality rather than costs - there're enough plastic lenses out there after all.
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