Lenses -> Sigma 4.5mm F2.8 EX DC HSM Fisheye - Sony,Minolta Fit
This auto focus 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 fisheye image within the frame. The fast f/2.8 maximum aperture produces a bright image in the viewfinder making this lens ideal for low light photography. It is equipped with an internal focusing system that creates high definition and excellent image quality over the whole frame. The HSM (Hyper Sonic Motor) ensures fast and quiet auto-focusing and allows full-time manual focus override by rotation of the focus ring.
|Specification / Feature||Value||Scores *||Rank **|
|Number of Lens Groups||9|
|Number of Lens Elements||13|
|Optical Zoom ||1.00||0.00||75|
|Max Aperture ||2.8||77.96||17|
|Max Aperture Wide ||2.8||77.96||17|
|Max Aperture Tele ||2.8||49.27||17|
|Focal Length Wide ||4.5 (or 6.8 in full frame equiv.)||96.80||2|
|Focal Length Tele ||4.5||3.20||95|
|Min Aperture ||22|
|Magnification Ratio ||0.17x||2.42||30|
|Min Focus Distance ||0.1m||98.71||6|
|Aperture Blades ||6||16.13||10|
|Sensor Format ||Full Frame|
|Autofocus Motor ||HSM|
|1st/3rd Party ||3rd party|
|Lens Type ||Fisheye|
|Image Stabilisation ||No|
|Video Lens ||No|
|Tilt Shift ||No|
|Weather Resistant ||No|
|MF switch ||Full-time manual over-ride|
|Included Accessories||Fitted padded case, Front and rear caps, Filter template|
|Size (DxL) ||0mm|
|Lens Mount ||Sony A|
|UK Price ||£544.33 at Amazon.co.uk (affiliate link)|
£544.33 at Wex Photo Video (affiliate link)
|US Price ||$799.00 at Amazon.com (affiliate link)||40.36||205|
* - Scores are calculated by comparing numerical specifications with other cameras. The highest ranking camera for a specification acheives a score of 100. The lowest ranking camera is scored as 0 and all the other cameras are scored in between 0 and 100 according to their merit.
** - Rank is calculated by ordering the scores for all cameras in descending order. The best scoring camera for a particular feature / specification will have a rank of 1.
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