Originally posted by Yamanobori How many 72mm lens do you know of? How is that not creative? There is no 645 90mm lens.
Focal lengths for a given purpose are of course a personal choice, especially for portraits. As great a lens as the 120 macro I, I don't find it's the most flattering lens for subtle portraits although they will certainly be razor sharp. I much prefer the 150 f2.8 for portrait purposes.
As for a focal length of 72mm, almost any focal length # in mm that hasn't been used for a Pentax 645 lens is going to be unique, but what I meant is it's an unimaginative focal length to pick as the next release. I'm certtain if you took a poll of 645D uses as to whether they would prefer a 90mm f2.8 645 lens as the next lens release vs. say a 30mm 645 T/S llens, I suspect the 30mm would garner more votes. I"m not saying a 90mm isn't a nice lens to eventually release...just that instead if replacing current 645 lenses with similar WR counterparts, maybe lenses that aren't part of the 645system yet.
Lastly keep in mind we already have the 75mm f2.8...a gem of a little lens, although granted it needs to be stopped down to achieve good resolution. Again we all have personal likes (and dislikes) when it comes to lenses....there is no right or wrong,
Dave