[Klaus]

[quote name='subhrashis' timestamp='1305904200' post='8688']

Thanks Klaus! This lens has always made me curious since the announcement and your results are very promising.

Can I repeat the request made in the posts above?



Performance with teleconverters would also be interesting to many of the intended users of this lens... Sigma or Canon, putting a 1.4x TC on this to make it a 180-420/f4 is very attractive... but the question is , how does the quality hold?



Thanks,

Subhrashis

[/quote]





There are no plans for an APS-C review nor converters. I'm aware of the need but we can't keep lenses for a long period of time.