The first circular fisheye lens
exclusively for use with APS-C size
digital SLR cameras.
4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM
4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM
Lens Construction
13elements in
9groups
Number of
Diaphragm Blades
6Blades
Minimum Aperture
F22
Minimum Focusing
Distance
13.5cm/5.3in.
Maximum
Magnification Ratio
1:6
Filter Size
rear
Dimensions
φ76.2mm
77.8mm
3.0in.×3.1in.
Weight
470g
Camera Type
- DSLR
Corresponding Mount
- SIGMA SA-mount
- Canon EF mount
- Nikon F mount
- Sony A-mount
- Pentax mount
Sensor Format
- APS-C [DC]
*Values are for SIGMA SA-mount
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