Mike Johnston (The Online Photographer) made the following observation about the 20/1.7:
Originally Posted by TEBnewyork
This looks like a mock-up to me, rather than a prototype. The lens has no filter threads and it doesn't look like it has a full complement of actual elements in place. That doesn't mean the final product won't look exactly like this, but for what it's worth I personally don't believe this is an actual prototype.
But, just in passing, bravo to Panasonic for planning this lens!
If you find his argument persuasive (I do), this *might* mean we have to wait a while longer for the 20/1.7 to ship.
Mike also has some advice for those who are disappointed in the G1's appearance/size/build quality/specs:
Another thing to bear in mind: The Panasonic G1 is the first Micro 4/3 camera, not the last. No need to bemoan the size or the feature choices just yet. There are going to be more cameras in this standard, even if it doesn't take off. If it does take off, there will be a great many more.
I remain ecstatic about Panasonic's imaginative choice for their first prime -- at least they didn't settle for the safe, boring, predictable choice: a 25mm pancake.