Upload & Sell: Off
Thanks Bob and Dave for the feedback on the differences. My inclination is to go smaller and lighter.....but the UWA end of the spectrum is where I have spent most of my money. It's hard for me to let the Zeiss 21mm go without something as good.
So I think I'll stay pat and wait to see what native offerings materialize (plus I save money on the short term. )
Definitely the latter Tim. The Zeiss 21 is simply best in class IMHO, but it's larger, heavier. And while the metabones version III adapter gives electronic aperture control, it adds further size. I like the Zeiss better and will use it on the a7R but on this trip, I wanted to see how satisfying it would be to travel with as small a kit as possible. While I love the Zeiss, I don't hesitate to use the Oly.