This
lens corrects colour aberration with four low-refraction, low
dispersion UD lens elements & a fluorite lens element. It makes good
use of available light for sharp, clear imaging performance. The
ring-type USM and inner focusing system deliver quick and quiet
autofocusing. Operability is enhanced by the full-time manual focus
system as well as the possibility of autofocus at 98-280mm f/4 or
140-400mm f/5.6 when used together with the Extender EF1.4xII or EF2xII.
EF50mm f/1.8 II
An
orthodox 6-element, 5-group construction allows high image quality and
natural expressiveness throughout the entire focusing range from
infinity to the closest focusing distance of 0.45m/1.58ft. A simple
cam-type drive is used in the focusing system, providing quick, quiet
autofocusing and achieving a light weight of 130g/4.6oz.
SP AF17-50mm F/2.8 XR Di II VC LD Aspherical [IF]
Di II : for APS-C DSLRs
High Speed Plus VC Anti-Shake for Ultimate Image Control
A masterpiece of innovative optical design, this compact,
lightweight, high performance standard zoom (26-78mm equivalent)
delivers a fast F/2.8 aperture over its entire focal-length range for
maximum creative flexibility. To maintain critical sharpness when
shooting handheld it includes VC (Vibration Compensation), Tamron's
state-of-the-art, tri-axial image stabilization system. Three compound
aspheric elements, special LD glass, and BBAR coatings ensure superb
correction, color fidelity, and freedom from flare. A minimum focus
distance of 0.29m (11.4 inches) offers exciting close-up opportunities.
Neutral colour
And with a price that won´t brwith aeak the bank, the
fun of a single focal length lens different attitude from a
standard zoom lens is available to everyone.balance achieves colour reproduction that is nearly identical with the
ISO recommended values.
NOTE:
When the EF1.4xII or EF2xII Extender is attached to the EF70-200mm
f/2.8L IS II USM, the AF function on multi-focus-point EOS cameras is
limited to the center focus point only.
No comments:
Post a Comment