[Zig]

That's great, Chris, thank you. I reckon I'd already reached the same conclusion but nice to have a man in the field saying so in practice..and I'd not even considered the weight. I confess I'm reaching that point where crystalline primes at longer lengths are counterbalanced by the encumbrance factor. Oddly enough, since getting the Zeiss 21, I'm aware now (for my own needs that is) that Canon razor-sharpness might not be as "real" as the experience itself(am not sure I'm putting that into words very well). Another confession is that, apart from around 35-40mm, I reckon my armoury is just about complete: I get a sense of resignation with this rather than joy, for some reason...