903SWC, the non-CFi version which is suppose to be a marginally better performer over-all ... it's probably splitting hairs with a lens so good.
I'm using the VC waist level finder on mine because it has a diopter correction ... the stock one is too blurry for me.
I'm using the VC waist level finder on mine because it has a diopter correction ... the stock one is too blurry for me.