Sigma releases 85mm F1.4 EX DG HSM
Feb 20, 2010 at 23:00 GMT
PMA 2010: Sigma has announced the 85mm F1.4 EX DG HSM, a large-aperture short telephoto lens which is bound to pique the interest of budding portraitists. Featuring a hypersonic focus motor with full-time manual focus override, the lens uses a 9-blade diaphragm for attractive background blur, and has a minimum focus distance of 85cm. It comes with a lens hood adapter for ASP-C/DX users that extends the length of the hood to give more effective shading, and will be available in mounts for Canon, Nikon, Pentax, Sigma and Sony SLRs.
SIGMA 85mm F1.4 EX DG HSM
February 21, 2010: The Sigma Corporation is pleased to announce the new Sigma 85mm F1.4 EX DG HSM. This large aperture medium telephoto lens optimized for use with digital SLR cameras features a focal length of 85mm, ensuring a natural perspective.
The large aperture of F1.4 is especially ideal for portrait and low light photography. When used on digital cameras with an APS-C size image sensor, the lens effectively becomes a 127.5mm F1.4 lens. One SLD (Special Low Dispersion) glass element and one glass mold element give excellent correction for all types of aberrations and ensure superior optical performance.
This lens is equipped with a rear focus system that minimizes fluctuation of aberration caused by focusing. The Super Multi-Layer Coating reduces flare and ghost even in backlight photography. Incorporating HSM (Hyper Sonic Motor), this lens provides quiet and high speed AF as well as full-time manual focus capability. It features a minimum focusing distance of 85cm and a maximum magnification 1:8.6.
This lens has a round 9 blade diaphragm which creates an attractive blur to the out of focus images. This lens is supplied with a Petal-type hood to block out extraneous light. For digital cameras with an APS-C size image sensor, a dedicated hood adapter, which expands the length of the lens hood, is supplied and enables the hood to block out extraneous light more effectively.
|Lens construction|| 8 groups 11 elements
1 SLD glass elements
|Angle of view (APS-C crop)||28.6°|
|Closest focus distance||
|Maximum reproduction ratio||1:8.6|
|Aperture blades||9 (rounded)|
|Filter attachment size||77 mm|
|AF motor||HSM motor|
|Dimensions||84.7mm x 87.6mm (3.3 in x 3.4 in)|
|Supplied accessories|| Case
|Mounts||Sigma, Sony, Nikon, Pentax, Canon|