Today I coupled up my Pentax 28-135 MF with my Pentax Kr and took some pics in the garden.I think it is just about my favourite lens.
It is a precision instrument and all class.
Constant F4 maximum aperture
It also has a macro setting but did not use this today.
This week(6/2/15) has seen Ricoh anouncing a new Pentax Full Frame DSLR is in the pipeline.
This lens should be great with that.
My wife is the gardener not me!