ZUIKO DIGITAL 25mm 1:2.8 Pancake mounted on 5D?
Is that a possibility, worth looking into or not, how, and which results can be obtained.
Will the 25mm be like 25mm on the 5D or ...?
Tempted by a good offer and compact solution and wide(?) possibility.
It would not even come close to covering the format even if it could be mounted. 25mm is always 25mm but this lens is designed for the much smaller sensors of 4/3rds format.
Not to mention that you don't get aperture or focus control as they're both purely electronic (It's a focus-by-wire lens). And since the register of 4/3rds mount is 38.67mm, you wouldn't even be able to do a mount adaptation to EF's 44mm register.
It's also just not that good a lens, although it might do better on a lower pixel-density body than it does on the high pixel density of my G1.
Look at the Voigtlander 20/3.5 SLII pancake instead. Nikon or Pentax mount manual focus FF lens, about 3mm longer than the ZD25.