Luminous Landscape Forum
Equipment & Techniques => Medium Format / Film / Digital Backs – and Large Sensor Photography => Topic started by: tetsuo77 on April 15, 2011, 04:45:29 am
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http://pentaxwebstore.com/detail/PTX+26360
Little bit expensive, has built in filter-holder in the middle of the lens assembly [which is quite a novelty for me].
Reminded me of the construction of the rectilinear K-15 3.5AL
It covers both the D-MF and MF imaging circle.