New Sigma 4.5mm lens

[BullcreekBob]

G'day

Has anyone been keeping an eye on the recent announcements from Sigma?

A 4.5mm fisheye lens that produces a circular photo within a DX frame might be fun for a play. If someone buys one, can I borrow it sometime? The release announcement is here http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3336&navigator=6

There has also been a recent release of a 10mm HSM lens http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3337&navigator=6

The one that mosts interest me however, is the second version of the 70-200mm F2.8 lens http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3340&navigator=3 , which seems to not differ much from the *old* one except it's 20g lighter and replaces one bit of normal glass with another ED glass.

Cheers
Bob in Bull Creek