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Sigma 4.5mm Fisheye Lens  
User currently offlineNumloxx From Australia, joined Apr 2004, 62 posts, RR: 0
Posted (8 years 6 months 6 days 12 hours ago) and read 2515 times:

Hi all, has anyone got one of these yet?

No Price on it yet, but I bet it won't be cheap  Sad
4.5mm translates to 7.2mm after a 1.6x crop factor, so I think this makes it the widest lens in the market?

The first Circular Fisheye Lens exclusively for use with APS-C size digital SLR cameras

* The first 180 degree circular fisheye lens designed specifically for APS-C size digital SLR cameras
* Fast F2.8 maximum aperture making it ideal for low light photography
* Minimum focusing distance of 13.5cm and a maximum magnification of 1:6
* SLD glass minimizes color aberration
* Equipped with HSM with full-time manual focus override
* Equisolid angle projection method is possible for art and scientific use.


The first Circular Fisheye Lens exclusively for use with APS-C size digital SLR cameras
The Sigma Corporation is pleased to announce the launch of the new 4.5mm F2.8 EX DC Circular Fisheye HSM lens.

This autofocus circular fisheye lens has an angle of view of 180 degrees in all directions. It is exclusively designed for digital SLR cameras with the APS-C size image sensor. When used in conjunction with digital SLRs with APS-C size image sensors, it produces circular image within the frame.

The F2.8 large aperture value produces a bright image in the viewfinder and allows photographers to take pictures in low light conditions, making it an ideal lens for Astrophotography and Aurora photography. Due to the quantifiable angle/area relationship it produces, this lens can be used for scientific and arts applications such as solid angle measurements of cloud distribution over the sky or vegetation distribution of the forest.

The minimum focusing distance of 13.5cm/5.3inch and maximum magnification of 1:6 make it particularly useful for close-up photography. SLD(Special Low Dispersion)glass provides effective compensation of chromatic aberration. Sigma’s Super Multi-Layer Coating minimizes flare and ghosting. It is equipped with an inner focusing system that creates high definition and good image quality over the whole frame. The HSM(Hyper Sonic Motor)ensures fast and quiet autofocusing and allows full-time manual focus override by rotation of the focus ring.

Perth, Western Australia
1 replies: All unread, jump to last
User currently offlineOly720man From United Kingdom, joined May 2004, 7154 posts, RR: 11
Reply 1, posted (8 years 6 months 5 days 23 hours ago) and read 2423 times:


The 4.5mm F2.8 Circular Fisheye will have an MSRP of $1400, or $900, estimated street.

So not terribly expensive...

Quoting Numloxx (Thread starter):
Hi all, has anyone got one of these yet?

from above link..

Sigma has yet to set an availability date on the 4.5mm, so stay tuned to PopPhoto.com for updates.

wheat and dairy can screw up your brain
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