Price Pledge ensures we won't be beaten on price! We actively monitor the prices offered by our competitors daily and adjust our own pricing accordingly.
Price Pledge ensures we won't be beaten on price! We actively monitor the prices offered by our competitors daily and adjust our own pricing accordingly. We pledge to match the price on most products offered by UK based dealers that are selling officially imported or manufactured UK stock, with full manufacturer warranty and is authorised to do so by the relevant manufacturer.
Prior to the point of sale CVP will endeavour to match the price on most products subject (but not limited) to the following criteria:
For further details please call us on 02083807400.
Details of where you have found the cheaper item.
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At CVP we always strive to get your order to you as quickly as possible, but in the interest of clarity please note that next day is defined as the next working day (ie: excluding weekends, UK bank holidays and public holidays).
Orders placed and security cleared before 14:00GMT where all items are in stock will normally be dispatched on the same business day for ultimate delivery according to the shipping method selected.
Where an item is not physically in stock, the actual delivery time will be extended by the lead time for the product in question. Shipping to the Channel Islands, Northern Ireland, Republic of Ireland and some remote UK postcodes are not next day but 2 working days.
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*Due to unforseen circumstances, on some occasions same day dispatch may not be possible. In this event we will always do our utmost to keep you fully informed of any delay imposed.
This Sigma DC series lens has been designed exclusively for APS-C format digital SLR cameras and has been optically configured for these cameras.
It is a large aperture standardd lens which gives an equivalent field of view to a 45mm lens on a 35mm format digital SLR. Its extra-wide f/1.4 maximum aperture allows smooth bokeh (defocus), superb control over depth of field and strong low light performance as well as a bright viewfinder image.
As part of the “A” or Art Series, the 30mm f1.4 lens has been made to concentrate on optical quality and usability over range of features. Optically there is optimised power distribution for minimised curvature of field so images are sharp right into the corners of the frame. The lens also features a double aspheric lens for low spherical aberration, astigmatism and coma. Also there is a rear focus system which prevents focus-influenced variations in aberrations. During focusing there is no change in length of lens and no rotation of the front lens barrel, thus making focusing accurate and predictable as well as the lens being well suited to the fitment of filters. Focusing is actuated by the HSM (Hyper Sonic Motor) for fast and quiet focusing with the ability to manually override at will.
The lens has been designed at every stage to reduce flare and ghosting as well as having Super Multi Layer coatings, so these unwanted effects are reduces to a minimum. The brand new “A1” MTF measuring system has also been employed for the most accurate testing system to date.
With a hard plated brass bayonet mount and compatible with Sigma’s optional USB dock for firmware upgrades.
|Lens Construction||9 Elements in 8 Groups|
|Angle of View (for SD1)||50.7 degrees|
|Number of Diaphragm Blades||9 Blades (Rounded diaphragm)|
|Minimum Focusing Distance||30cm / 11.8in.|
|Filter Size||Diameter 62mm|
|Dimensions||Diameter 74.2mm x Length 63.3mm / 2.9in. x 2.5in.|
|Weight||435g / 15.3 oz.|
Sigma is organizing all its interchangeable lenses into three product lines; Contemporary, Art and Sports. Designed with a focus on sophisticated optical performance and abundant expressive power, Sigma's Art line delivers high-level artistic expression. Developed with the maximum emphasis on artistic touch, they are designed to meet the expectations of users who value a creative, dramatic outcome above compactness and multifunction. Along with landscapes, portraits, still-life, close-up and casual snaps, they are perfect for the kind of photography that unleashes the inner artist. Ideal for studio photography, they offer just as much expressive scope when capturing architecture, starry skies, underwater shots and many other scenes.
Sigma pioneered the large-aperture APS-C format standard lens category with its 30mm F1.4 lens in 2005. Now that they have reorganized all their lenses into three product lines, they are proud to introduce the fully updated “SIGMA 30mm F1.4 DC HSM”. Offering the shallow depth of field of F1.4 and an angle of view extremely close to that of human vision, this lens stimulates the desire to create and is ideal for many different types of photographic expression. The bright viewfinder also aids focusing and composition of images.
Convenient angle of view of a standard lens challenges photographers' expression. The SIGMA 30mm F1.4 DC HSM has outstanding optical performance in order to fully perform its best expressive quality at all shooting distances. Optimized power distribution minimizes field curvature thereby preventing a loss of image quality at the edges of photographs. The use of a double aspheric lens minimizes spherical distortion, astigmatism and coma. Coma of point light sources is minimized near the edge of the image, and an attractive round bokeh effect is produced at large-aperture settings
The lens incorporates a rear focus system that prevents focus-dependent variation in aberration, making high-level image quality possible throughout the entire image. With their unchanging barrel length, these lenses also enhance balance and stability for the photographer. Furthermore, since the front of the lens does not rotate, polarizing filters can be used with extra convenience.
From an early stage, flare and ghosting are thoroughly measured to establish the design which is resistant to strong incident light such as backlight. Sigma's Super Multi-Layer Coating reduces flare and ghosting, and provides sharp and high contrast images even in backlit conditions.
The maximum magnification is 1:6.8, making it excellent for close-up photography.
The HSM (Hyper Sonic Motor) ensures a silent, high-speed AF function. Optimizing AF algorithm, smoother AF is achieved. It also enables full-time manual focusing capability which allows sensible focus adjustment by simply rotating the focus ring.
The 9 blade rounded diaphragm creates an attractive round bokeh at large-aperture settings.
The new product lines incorporate rubber for the attachment part of the provided lens hood. For better usability, the designs of the lens cap and AF/MF changeover switch have been improved. In order to ensure high accuracy of the product, all metallic parts and the new compound material, TSC (Thermally Stable Composite), which has a high affinity to metal parts, are housed internally.
This lens incorporates a brass made bayonet mount which has both high accuracy and durability. A special treatment to reinforce its strength is applied to the surface giving it greater strength and making it highly resistant to long-term use.
Attaching the lens to an optional USB DOCK plugged to your computer and using dedicated software “SIGMA Optimization Pro”, you can update the lens firmware and adjust parameters such as focus.
Sigma used to measure lens performance with MTF measuring system using conventional sensors. However, they have now developed their own proprietary MTF (modulation transfer function) measuring system (A1) using Foveon 46-megapixel direct image sensors. Even previously undetectable high-frequency details are now within the scope of quality control inspections. The SIGMA 30mm F1.4 DC HSM will all be checked using this “A1” before they are shipped.