Sigma is getting ready to ship its 4.5mm f2.8 circular fisheye lens at the end of January. This lens has been specially made to work with “pro-sumer” cameras such as the Nikon  D300 and Canons 40D. It will be made for Canon, Nikon and Sigma. It should have a street price around $900 US.  ”The first Circular Fisheye Lens exclusively for use with APS-C size digital SLR camerasThe Sigma Corporation is pleased to announce the launch of the new 4.5mm F2.8 EX DC Circular Fisheye HSM lens.” Check it out here. 

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