Sigma

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Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye lens

* The first 180 degree circular fisheye lens designed specifically for APS-C size digital SLR cmaeras.
* THe fast F2.8 maximum aperture making it ideal for low light photography.
* Minimum focusing distance of only 5.3 inches(13.5 cm) and maximum magnification of 1:6.
* Special Low Dispersion( SLD) glass minimizes color aberration.
* Equipped with HypeSonic Motor HSM with full-time manual focus override.
* Equisolid angle projection method is possible for art and scientific use.
* Available for Sigma, Canon and Nikon Digital Cameras.

The F2.8 large aperture value produces a bright image in the viewfinder and allows photographers to take pictures in low light conditions, making it an ideal lens for Astrophotography and Aurora photography. Due to the quantifiable angle/area relationship it produces, this lens can be used for scientific and arts applications such as solid angle measurements of cloud distribution over the sky or vegetation distribution of the forest.

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 provides effective compensation of chromatic aberration. Sigma’s Super Multi-Layer Coating minimizes flare and ghosting. It is equipped with an inner focusing system that creates high definition and good image quality over the whole frame. The HSM(Hyper Sonic Motor)ensures fast and quiet autofocusing and allows full-time manual focus override by rotation of the focus ring.


Press Release: Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye lens:






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Camera Test: Sigma SD14

Specification 

Imaging: 14.1MP (effective, based on X3 sensor that has three
RGB-sensitive layers of 1760×2640 pixels each). 12 bits/color in RAW
format.
Storage: CF Type I and II, Microdrive. Stores JPEG or RAW.
Burst rate: Up to 6 Hi-quality JPEGs at 3 fps (tested using a SanDisk Extreme III 8GB card and LCD turned off).
AF system: TTL phase difference with 5 selectable AF zones with center cross-type. Sensitive down to EV -1 (at ISO 100, f/1.4).
Shutter speeds: 1/4000 to 30 sec plus B (1/3-EV increments).
Metering: 8-segment evaluative, limited-area, and center-weighted average metering. No true spotmeter. EV 1-20 (at ISO 100).
ISO range: 100-800 (in 1-EV increments) plus ISO 1600 via custom setting.
Flash: Built-in pop-up with S-TTL metering and GN 38 (ISO 100, feet). Flash sync at 1/180 sec. Dedicated hot-shoe.
Viewfinder: Fixed eye-level pentaprism.
LCD: 2.5-in. TFT with 150,000-pixel resolution.
Batteries: Rechargeable BP-21 Li-ion; 500 shots per charge (CIPA rating).
Size/weight: 5.7×4.2×3.2 in.; 1.8 lb with card and battery (body only).
Street price: $1,600, body only.
For info: www.sigmaphoto.com.
Viewfinder Test

Accuracy: 98% (Excellent)
Magnification: 0.90X (Excellent)
Competitive Set

• Canon EOS 30D ($1,120, street, body only): Has tough magnesium-alloy
frame and faster AF system with better motion tracking, and faster (5
fps) burst rate. Produces less shadow noise at ISOs above 400, though
the Sigma’s RAW files show similar resolution and color accuracy.

• Nikon D200 ($1,340, street, body only): Tougher body with water and
dust seals, superior AF system with better tracking, higher burst rates
and NEF RAW + JPEG mode. Has superior noise control and dynamic range,
plus smart Li-ion battery, but doesn’t shoot infrared.


Hands on and In the Lab Test by PopPhoto


Flickr Sigma SD14 Sample Photo

 

 




Your Ad Here


Sigma SD14 – out!

Sigma has debuted its third digital SLR to date, the SD14. Powered by a  14
MP Foveon X3
direct image sensor, the SD14 features four JPEG recording
modes as well as RAW; and a large pentaprism viewfinder with 98 per
cent coverage.

The camera is equipped with a built-in flash with a Guide Number of
11; 5-point AF system; 2.5-inch, 150,000 pixel resolution LCD monitor.
Sigma says the shutter mechanism has a life cyle of over 100,000
exposures
.

Additional features include a dust protector that prevents dust from
adhering to the image sensor; high-speed continuous shooting at 3 fps;  a
mirror lock-up mechanism that prevents camera shake; and three types of
metering modes. Powered by a lithium-ion battery, the SD14 can take
approximately 500 images on a full charge.

Sigma introduced its first digital SLR camera, the SD9, in October 2002. The second model, the SD10, launched in November 2003.

The Sigma SD14 digital SLR is available for an MSRP of $1,999.95. For more information, visit www.sigma-sd14.com; or contact Gentec International at (905) 513-7733.