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    Sigma DG EX HSM 50Mm F/1.4 Standard AF Lens for Pentax

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    Manufacturer Code: 310109
    310109 UPC : 310109
    Brand:  Sigma
    RRP:  £399.00
    Sale Price:  £319.00
     Inc VAT 20%
    You Save:  £80.00


     

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    Sigma DG EX HSM 50Mm F/1.4 Standard AF Lens for Pentax

    The Sigma EX DG 50mm f/1.4 AF HSM is a quite exceptional lens. It is Sigma's first-ever large aperture AF 50mm lens which is amazing regarding the market implication of the company. It is also stimulating to see a newly designed, state-of-the-art 50mm f/1.4 standard lens.

    It's a uncommon example of what is quickly becoming an endangered species; an all-new, large utmost aperture, fixed focal length 'prime' lens, and a enormously welcome addition to a market in risk of becoming saturated by identikit slow zooms. The 50mm focal length makes it a classic 'standard' lens for 35mm full-frame cameras, while on DSLRs with smaller format sensors it acts as a short 'portrait' telephoto, with an equivalent angle of view ranging from 75mm (on 1.5x 'DX' format) to 100mm.

    The Sigma 50mm f/1.4 EX DG HSM is a professional-level lens. It is constructed with a plastic body and a metal mount. This lens features a distance window with field scale. A 9-blade, maximum aperture of f/1.4 gives this lens the capability to generate shallow depth of field effects. The optical construction of this lens contains 8 lens elements, including one aspherical lens element. This lens uses a front extension focusing method, powered by a ring USM motor. Auto focus speed of this lens is modest; it's not as fast as most ring USM lenses. The front of the lens does not rotate, but does extend when focusing. The lens is designed so that the outer body barrel is longer than the inner lens barrel, when the inner lens barrel is at its longest extension. This means that the lens is always has constant length.

    Specifications - Sigma DG EX HSM 50Mm F/1.4 Standard AF Lens for Pentax

    Maximum format size 35mm full frame
    Focal length 50mm
    35mm equivalent focal length
    (APS-C)
    75mm (1.5x)
    80mm (1.6x)
    Diagonal Angle of view (FF) 47º
    Diagonal Angle of view (APS-C) 31º
    Maximum aperture F1.4
    Minimum aperture F16
    Lens Construction 8 elements/6 groups
    1 Aspherical element
    Number of diaphragm blades 9 (rounded)
    Minimum focus 0.45m (1.5 ft)
    Maximum magnification 0.14x
    AF motor type Ring-type ultrasonic
    Full-time manual focus
    Focus method Unit focus, internal to lens barrel
    Image stabilization None
    Filter thread 77mm
    Does not rotate on focus
    Supplied accessories Front and rear caps
    Lens Hood
    Soft Case
    Dimensions 84.5mm diameter x 68.2mm length
    (3.3 x 2.7 in)
    Lens Mount Pentax
    Weight 505g (17.8 oz)

    Kit Content
    Sigma DG EX HSM 50Mm F/1.4 Standard AF Lens
    Front and rear caps
    Lens Hood
    Soft Case

    For more information about, Sigma DG EX HSM 50Mm F/1.4 Standard AF Lens for Pentax website.

    Customer Reviews on Sigma DG EX HSM 50Mm F/1.4 Standard AF Lens for Pentax
    £319.00

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    This product was added to our catalog on Friday 12 June, 2009.
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