a nice report, ta .... too bad about the price (for me anyhow)
Same here... definitely on the want list, but the price is a bit of a hurdle.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.
The built-in TC is a smart move. This way they avoided all the criticism that it is - in practice - a variable aperture lens. ;-)
Too heavy!
Btw thanks for the link; I found Andy's pictures very pleasant.