Mamiya 645 35mm f/3.5 lens review

slrlensreview.com has a review of the Mamiya 645 35mm f/3.5. From the review:

Mamiya 645 35mm f/3.5 is not your typical play in the 35mm focal range. Being a medium format ultra wide angle, the lens carries an aura of excitement and mystery right up until you put it on your beloved dSLR and start shooting. Ten minutes later you will realize that this setup does not really make much sense without a tilt/shift adapter - for a 35mm prime, the lens is too bulky and heavy, looking more like a telephoto then a moderately wide prime lens. Combine that with a relatively poor border performance at wider apertures and the fact that the lens is relatively slow and you will realize that there are better ways to spend your hard earned dollars.

Read the full review here and you can buy the Mamiya - Wide-angle lens - 35 mm - f/3.5.