Sigma 180mm f/3.5 APO EX DG HSM Macro Lens

https://www.photoreview.com.au/reviews/lenses/full-frame/sigma-180mm-f35-apo-ex-dg-hsm-macro-lens/

A capable and value-priced macro lens with a good working distance for close-ups of invertebrates and other small subjects.Sigma’s 180mm f/3.5 APO EX DG HSM Macro is the only lens in its macro range with an HSM autofocusing motor – but only on the Sigma, Nikon-D and Canon mounts. Designed for use on full frame digital SLR cameras, but can also be fitted to DSLRs with smaller APS-C size sensors, where it covers a similar field of view to a 270mm lens when fitted to Nikon, Pentax and Sony cameras with 1.5x crop factors or 288mm with Canon DSLRs.

Sigma 105mm f/2.8 EX DG Macro Lens

https://www.photoreview.com.au/reviews/lenses/full-frame/sigma-105mm-f28-ex-dg-macro-lens/

An affordably-priced true macro lens with an ideal focal length for portraiture.The 105mm f/2.8 EX DG Macro sits in the middle of Sigma’s range of 1:1 true macro lenses. Keenly priced, it is designed for use with full frame digital SLR cameras, but can also be fitted to DSLRs with smaller APS-C size sensors. It covers a similar field of view to a 158mm lens in 35mm format when fitted to Nikon, Pentax and Sony cameras with 1.5x crop factors or 168mm with Canon DSLRs.

Sigma DP2s

https://www.photoreview.com.au/reviews/advanced-compact-cameras/fixed-lens/sigma-dp2s/

A compact, advanced digital camera with a large Foveon X3 Direct Image Sensor and few automated functions.There’s very little difference between the Sigma DP2, which was released in April 2009 and the DP2s, which was announced in February 2010. The sensor and lens in the new camera are the same as the earlier model and the rather quirky user interface is unchanged. According to a company press release, there’s a new AF algorithm for faster autofocusing and a Power Save mode to enable more shots per charge. The rear panel buttons are more clearly labelled, and the camera ships with the latest raw file processing software.

Sigma DP2

https://www.photoreview.com.au/reviews/advanced-compact-cameras/fixed-lens/sigma-dp2/

A pocketable, advanced digital camera with a large Foveon X3 Direct Image Sensor and few automated functions.Although many photo enthusiasts have been looking forward to Sigma’s DP2 since the camera was first revealed at Photokina 2008, we’ve had to wait almost eight months to see a review unit. Physically and technologically similar to the original DP1 model (which Photo Review reviewed in March 2008), the DP2 comes with a standard-range lens that is considered more suitable for snapshots and portraits.

Sigma DP1x

https://www.photoreview.com.au/reviews/advanced-compact-cameras/fixed-lens/sigma-dp1x/

A pocketable camera with a large Foveon sensor that delivers rich, natural-looking colours plus a wide dynamic range and supports raw file capture.Sigma’s DP1x features the same 20.7 x 13.8 mm Foveon X3 sensor and wide angle lens as Sigma’s first large-sensor compact camera, the DP1, which was released just over three years ago. This recent update is largely cosmetic and combines the rear panel interface design of the DP2s with the True II processor from the DP2. It also introduces a revised autofocusing algorithm.