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Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Sony A

BH #SI4528EXDSO • MFR #486-205
Sigma
Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Sony A
Key Features
  • A-Mount Lens/APS-C Format
  • 6.75mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/22
  • One SLD Element
Offering creative distortion and exaggerated perspectives, the Sony A-mount 4.5mm f/2.8 EX DC HSM Circular Fisheye from Sigma produces a circular image with an expansive 180° angle of view. Benefitting the unique look of the lens is an advanced optical design that utilizes one SLD glass element to reduce color fringing and chromatic aberrations for improved clarity. A Super Multi Coating has also been applied to suppress lens flare and ghosting for greater contrast and color accuracy. Additionally, the lens also features a Hyper Sonic Motor for quick and accurate autofocus performance for working with subjects as close as 5.3" away.
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Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Overview

Offering creative distortion and exaggerated perspectives, the Sony A-mount 4.5mm f/2.8 EX DC HSM Circular Fisheye from Sigma produces a circular image with an expansive 180° angle of view. Benefitting the unique look of the lens is an advanced optical design that utilizes one SLD glass element to reduce color fringing and chromatic aberrations for improved clarity. A Super Multi Coating has also been applied to suppress lens flare and ghosting for greater contrast and color accuracy. Additionally, the lens also features a Hyper Sonic Motor for quick and accurate autofocus performance for working with subjects as close as 5.3" away.

Unique 4.5mm f/2.8 circular fisheye lens is designed for APS-C-format Sony A-mount cameras, where it provides a 6.75mm equivalent focal length.
Expansive 180° angle of view pairs with the fisheye design to render circular imagery within a black frame. This design also renders scenes with exaggerated distortion and curved lines for a creative, distinct aesthetic.
One SLD glass element is featured in the optical design to reduce chromatic aberrations and color fringing for improved clarity and color accuracy.
Super Multi-Layer Coating has been applied to individual elements to suppress flare and ghosting for improved contrast and color when working in strong lighting conditions.
Hyper Sonic Motor autofocus system, and an internal focus design, offer fast, precise focusing performance for working with subjects as close as 5.3" away.
Rear slot accepts cut gelatin-type filters.

Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Specs

Key Specs
Focal Length
4.5mm (35mm Equivalent: 6.75mm)
Maximum Aperture
f/2.8
Lens Mount
Sony A
Lens Format Coverage
APS-C
Focus Type
Autofocus
Image Stabilization
No
Filter Size
Gel Filter (Rear)
Maximum Aperture
f/2.8
Minimum Aperture
f/22
Lens Mount
Sony A
Lens Format Coverage
APS-C
Angle of View
180°
Minimum Focus Distance
5.31" / 13.5 cm
Maximum Magnification
0.17x
Macro Reproduction Ratio
1:6
Optical Design
13 Elements in 9 Groups
Diaphragm Blades
6
Focus Type
Autofocus
Image Stabilization
No
Filter Size
Gel Filter (Rear)
Dimensions (ø x L)
3 x 3.06" / 76.2 x 77.8 mm
Weight
1.03 lb / 470 g
Packaging Info
Package Weight
1.535 lb
Box Dimensions (LxWxH)
5.45 x 4.45 x 3.9"

Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Reviews

See any errors on this page? Let us know

question

Does this lens have front filter threads? If so what size? A reviewer has mentioned that this lens can be used with front filters despite the protruding front element.
Asked by: Anonymous
The lens itself, like virtually any fisheye lens, does not have filter threads. This is a matter of the physics in the designing such lenses. The reviewer mentioned that this Sigma Cap Adapter for a Sigma 4.5mm f/2.8 B&H # SICA48672 allows a 72mm filter or lens cap to be mounted. If you go this way, watch out for filter vignetting.
Answered by: Dennis A L.
Date published: 2018-08-27

question

Will an a77ii produce a fisheye effect with this lens?
Asked by: Timothy
Thank you for your interest in Sigma products. Two things that you need to keep in mind. 1- This is a Sony A-mount lens and you 'll need an adapter to use this lens on your Sony A7 (E-mount) camera. 2- This is a DC lens and it's designed to create a circular picture for APS-C size sensor. for your Full-frame camera, I recommend the Sigma DG 8mm Circular Fisheye (which projects a larger circle for larger sensors) withe proper adapter for E-mount): https://<a href= http://www.bhphotovideo.com/c/product/440665-REG/Sigma_485101_8mm_f_3_5_EX_DG.html?sts=pi target= _blank >www.bhphotovideo.com/c/product/440665-REG/Sigma_485101_8mm_f_3_5_EX_DG.html?sts=pi</a>
Answered by: Ebi J. Sigma Expert
Date published: 2018-08-27

question

How will this work with a Panasonic AG AF100?
Asked by: Anonymous
This lens will not be compatible with the AF100 without an adapter as the mount is EF. A MFT to EF adapter would be needed.
Answered by: Dana G.
Date published: 2018-08-27

question

Will this lens work with a Nikon d5300?
Asked by: Michael
Yes of course. this lens will work fine with any Nikon DSLR
Answered by: naftoli g.
Date published: 2018-08-27

question

Compatible with Sony A77II? Or would I need an adapter?
Asked by: Anonymous
The Sigma 4.5mm f/2.8 EX DC HSM Lens for Sony Alpha SLR is compatible with the Sony Alpha a77 II. No adapter is required.
Answered by: Lawrence C.
Date published: 2018-08-27

question

Is this e-mount or a-mount? Is it compatible with Sony a-6000?
Asked by: Kim F.
This is an A mount lens. You can use this lens on the A6000 with an adapter, B&H # SOLAEA4.
Answered by: Heather S.
Date published: 2018-08-27

question

Will this lens work with a Nikon D7100?
Asked by: DJ
Thank you for your interest in Sigma products. The 4.5mm f/2.8 EX DC HSM Lens for Nikon Digital SLR is compatible with the Nikon D7100.
Answered by: Errol D. Sigma Expert
Date published: 2018-08-27

question

What is the part # for the rear lens cap?
Asked by: Anonymous
Sorry to say I do not know that part number! But, that end-cap is exactly the same as all other Canon EOS digital lens rear caps. Any should fit (if what you need is to replace one), so...
Answered by: ROBERT L W.
Date published: 2018-08-27
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