mike watkins dot ca : December 18 2011 Archives

December 18 2011

Random Images This Week

I've been checking out a few small cameras this year and the one which appears to have a firm hold on me is the Ricoh GXR. It's a real photographer's camera, oddly but usefully modular, and probably won't be everyone's cup of tea. The Mount A12 GXR module allows me to use my existing rangefinder lenses - all manual focus, well built and mostly very high performing pieces of glass - on a digital body designed just for these types of lenses.

From Abstract

One thing I've learned - compact cameras with large sensors work for me. I've sold off my medium format equipment and gone small and couldn't be happier.

From Vancouver

While other cameras like the Sony NEX series can be adapted to host such lenses, they were never designed from the outset to support rangefinder glass but by happy accident they work well enough, but not to their full potential. Edge and corner smearing are problems the Sony NEX has with certain lens designs - mostly found at the wider focal lengths.

From Ironies

The GXR having been designed for these lenses does not suffer from these edge and corner issues, and overall goes several steps further, resolving fine detail better. The difference can be striking in fact, all the more surprising given the GXR sensor is an older 12.3 megapixel Sony (they are a big sensor player) design competing against the current 16MP sensor in the NEX. Shooting landscapes at infinity, the GXR resolves more detail - that much is clear. The NEX has its advantages too but those will disappear as the GXR Mount A12 becomes the Mount A16 - inheriting the same sensor as the NEX - early in 2012.

From Vancouver

Lens sharpness on Ricoh GXR Mount A12

I've been shooting this same brick wall with my lenses on the NEX and now Ricoh GXR Mount A12 to give me some sense for how each camera treats my selection of lenses.

This post will be updated with additional crops over time.

Attached are files for:

  • Zeiss ZM 25mm f/2.8
  • Zeiss ZM 35mm f/2