> In my opinion, the FA*85/f1.4 gives a bigger blur for portrait
> shots, as it has a slighlty longer focal length (plus f1.4).

85mm is indeed slightly longer than 77mm, but the FA* 85/1.4 is
~less~ than an 85mm lens at closer focus distances, so that the
difference between the autofocus 85/1.4 and the 77/1.8 might be
smaller than the FL numbers suggest (unless the 77/1.8 also shows
the same close-focus FL effect - what sort of focusing does the
77/1.8 use?).

See the 2 "EFFECT OF ACTUAL FOCAL LENGTH ON IMAGE SIZE" links at:
http://www.cetussoft.com/pentax/85compar/ .

Fred


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