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Ephotozine -DFA*50/1.4 review -MTF50!


Staff member
Jul 23, 2007
Ephotozine has just put up their review of the DFA*50/1.4.

If anyone asks you why your 50mm is so expensive, then just tell them.... :D

There are plenty of 50mm f/1.4 lenses, although many of them have designs that date back possibly decades. There is nothing intrinsically wrong in this as the 50mm has always been a high quality optic, generally considered the perfect standard focal length for 35mm format. However, things move on, and even higher standards are now possible, albeit using complex designs and being very expensive to produce.
This new Pentax 50mm f/1.4 SDM AW lens aspires to being amongst the best of the best, and indeed it achieves that and at a price which is still high, but which is highly competitive within its own bracket. Add effective AF and all weather construction where some much more expensive lenses are manual focus only, and Pentax Users have a very enviable package. Obviously users of other marques will need to use the alternatives (notwithstanding any adapters that may be available), but Pentax enthusiasts can be confident that they can share too in the very latest quality optical designs.

Really amazing MTF numbers starting right from f1.4!

Full review here :


Senior Member
Jan 11, 2010
Thanks Jk for sharing..
The lens is indeed heavy!

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