SIGMA ART 18-35mm f1.8

              from £30

SIGMA ART 50-100mm  f1.8

                from £35

SIGMA ART LENSES

The lens integrates four aspherical elements into its construction as well as five Special Low Dispersion (SLD) glass elements to help minimize various aberrations and distortions throughout the zoom range as well as provide greater image sharpness and clarity. A Super Multi-Layer Coating has also been applied to lens elements to reduce surface reflections, lens flare, and ghosting to produce images with higher contrast and color fidelity. The lens barrel design is constructed from a Thermally Stable Composite (TSC) material that is akin to metal in texture and resistance to temperature and environmental changes while also remaining lightweight and compact. An internal focusing and zooming mechanism also helps to maintain a compact and consistent overall length and non-rotating front ring also better enables the use of circular polarizing filters. For control of focus, a Hyper Sonic Motor (HSM) is used to ensure fast, precise, and quiet focusing capabilities that are well suited to continuous shooting and movie recording.

Sigma ART series lenses are some of the sharpest and fastest lenses available today. The 18-35mm holds the record for the fastest zoom lens on the current market meaning it is the lens of choice for anyone wanted shallow depth of field or when working with low light situations.

GENUSTECH Eclipse Variable ND

                   from £10

GENUSTECH ECLIPSE VARIABLE ND 82MM

The Genustech 77mm Eclipse ND Fader Filter is a solid variable neutral density filter providing an exposure reduction of approximately 2 to 8 stops. The 0.6 to 2.4 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. The degree of density is easily controlled by rotating the front filter ring, helping you to predetermine the additional exposure length required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily.

The filter is constructed from optical glass for high image quality and features an aluminum filter ring for rigidity and to prevent filter jamming. For easier, repeatable control over density settings, the front ring is visually demarcated with dots that represent different density values. The front 82mm female threads of the filter are larger than the rear 77mm male threads to help minimize vignetting.

Step down rings are available from 82mm so this will fit most lenses