Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye Overview
Announced Nov 14, 2007
•
Wideangle fisheye prime lens | Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha | 486
Add this product to your shortlist for comparison
Buy on Amazon.com
User reviews
0 user reviews
Write your user review
Questions & Answers
0 questions asked
Ask a new question
Gear list
| 30 | 12 | 2 | ||
| I own it | I want it | I had it |
Product description
Announced
Nov 14, 2007
Discuss in the Third Party Lens Talk forum
The 4.5mm F2.8 EX DC Circular Fisheye HSM is a true fisheye optic for crop cameras, projecting a circular 180-degree image onto APS-C sensors. This lens sports a focal length of 4.5mm and maximum aperture of F2.8, Sigma's HSM ultrasonic-type focusing and SLD low-dispersion lens elements. Aside from 'edgy' skateboarding shots, circular fisheyes are actually quite useful for astrophotography and scientific applications.
Product timeline
Nov 14, 2007
Quick specs
| Lens type | Prime lens |
| Focal length | 4.5 mm |
| Image stab. | No |
| Lens mount | Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha |
| Max aperture | F2.8 |
| Min aperture | F22 |
| Min focus | 0.14 m (5.31″) |
| Weight | 470 g (1.04 lb) |
| Length | 78 mm (3.06″) |
Support DPReview. Shop with
 |  |  |
| BMW K 1600 GT by anisah from Motorcycles in Urban Environment | Tjejmilen, Stockholm by Schjeldal from Running People | Living statue by Wildbegonia from An intermezzo in the “can we travel again soon ? "series, Now, Street performance – Living statues |
