4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM

The first circular fisheye lens exclusively for use with APS-C size digital SLR cameras

This autofocus circular fisheye lens is designed exclusively for digital SLR cameras with an APS-C size image sensor. It produces circular image with digital SLR cameras. 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, Super Multi-Layer Coating and the inner focusing system creates high image quality. The HSM (Hyper Sonic Motor) ensures fast and quiet autofocusing and allows full-time manual focus override. It produces circular image with a diameter of 12.3mm and angle of view of 180 degree in all directions, making it ideal for capturing 360 degree panoramas.

Equisolid angle projection system

Due to the quantifiable angle/area relationship it produces, this lens can be used for scientific applications such as solid angle measurements of cloud distribution over the sky, or vegetation distribution of the rain forest canopy.

The close focusing capability allows close-up photography

The minimum focusing distance of 13.5cm/5.3inch and maximum magnification of 1:6 make it particularly useful for close-up photography.

F2.8 Large aperture

It is an ideal lens for Astrophotography and Aurora photography. The large depth of field enables photographers to emphasize the subject.

High level optical performance

SLD (Super Low Dispersion) glass provides effective compensation of color aberration. Sigma’s Super Multi-Layer Coating minimizes flare and ghosting. It is equipped with inner focusing system that creates high definition and excellent image quality over the whole frame.

HSM (Hyper Sonic Motor)

The HSM ensures fast and quiet autofocusing and allows full-time manual focus override by rotation of the focus ring.

*AF will not function if the Pentax camera bodies do not support HSM.

Convenience for photographers

This lens is equipped with a gelatin filter holder at the rear, allowing the use of gelatin filters. The front cap adapter for attachment of the 72mm front cap is included.

The first circular fisheye lens exclusively for use with APS-C size digital SLR cameras

Lens construction

Specifications

Others

4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM

Lens Construction 13 elements in 9 groups
Angle of View (for SD1) 180 degrees
Number of Diaphragm Blades 6 Blades (rounded diaphragm)
Minimum Aperture F22
Minimum Focusing Distance 13.5cm / 5.3in
Maximum Magnification 1:6
Filter Size Insertion-type gelatin filter into rear of the lens
Dimensions Diameter 76.2mm x Length 77.8mm / 3.0in. x 3.1in.
Weight 470g/ 16.6oz.

Corresponding AF Mounts

Barcode No.

Sigma 00-85126-486563
Canon 00-85126-486549
Nikon 00-85126-486556
Sony 00-85126-486624
Pentax 00-85126-486617

The first circular fisheye lens exclusively for use with APS-C size digital SLR cameras

MTF chart

4.5mm

The first circular fisheye lens exclusively for use with APS-C size digital SLR cameras

In the news

‘…fisheye lenses can be used to create striking visual and compositional effects, and they’re popular with more creative and adventurous photographers. It’s tempting to imagine that this lens would be perfect for squeezing in panoramic landscapes. Indeed, it can be used with ‘stitching’ software to create interactive 2D and 3D panoramas.’

’Despite being a photographer who normally prefers to record nature authentically, my attitude shifted the moment I first looked at the world through such an extreme focal length. The fisheye effect is captivating. The lens’ unique perspective can be combined to good effect with practically any subject – you just need to learn to look at your environment with a creative eye.’

‘For professional photographers whose trademark is surreal effect, those who produce interactive 3D virtual environments or need to produce images for scientific analysis, the Sigma 4.5mm fisheye could be a sound investment.’

‘The lens itself feels solid and well made, and the autofocus is fast and quiet. Results are good, with high levels of sharpness at the centre of the frame. Flare is well controlled considering the lack of lens hood and exposed front element. A well made specialist optic that’s unique in the market place and hard to fault. If you have a use for round images, go ahead and buy it.’

‘Fit one of these to your camera and you get an instant wow-factor just looking through the viewfinder. Autofocus comes courtesy of Sigma’s fast and near silent HSM system, which worked flawlessly in our tests. As well as creating a fisheye effect, this lens is also great for use with computer stitching software, so you can transform images into navigable virtual reality scenes. And to the best of our knowledge, if you want a circular fisheye for your smaller-sensor camera, this is the only one of the market.’

‘Autofocus is fast and effective, courtesy of Sigma’s HSM (Hyper-Sonic Motor) system, which includes full-time manual override. The Sigma’s images are big on wow-factor. The perfect lens for creating circular fisheye images on SLRs with APS-C sensors, the Sigma is well built and easy to use.’

‘The 4.5mm is a good example of Sigma’s EX range of lenses, with its speckled granite-like appearance and feels solidly constructed. Although I had already seen photos taken using a circular fisheye lens before, I wasn’t prepared for just how wide a view the Sigma takes in. The circular 180-degree field of view allows you to point the camera straight up and still capture the horizon on all sides.’

‘The angle of view this lens give you is so extreme, you can almost see behind yourself with it. The fisheye effect is therefore more dramatic, although you inevitably end up with circular rather than rectangular image. Stinking circular images are assured with sharp and punchy lens. Great solution and contrast makes this the top choice for a circular fisheye on any DX body.’

The first circular fisheye lens exclusively for use with APS-C size digital SLR cameras

Accessories

Padded Case For 4.5mm EX DC

Part No. 475510

£19.99

Front Cap Adapter for 4.5mm EX DC

Part No. 486520

£42.99