Description
Macro
Lens
70mm f/2.8 EX DG
The
advent of digital SLR's requires optimum lens performance and therefore
the very latest optical technology has been incorporated in the production
of this medium telephoto macro lens. The 70mm focal length gives an equivalent
field of view as our popular 105mm macro lens when used on digital SLR
cameras with an APS-C size image sensor. The design of this lens makes
it suitable for taking pictures in all situations both with natural light
conditions or flash.
An
easy to use 70mm medium telephoto macro lens
This lens would have an equivalent field of view of a 105mm telephoto
macro lens when used on digital SLR cameras with an APS-C size image sensor.
The narrow angle of view is a great aid for simplifying backgrounds and
shallow depth of field makes it easier to handle the composition.
Compensate
for colour aberration
A Special Low Dispersion (SLD) lens and two high refractive index SLD
lenses provide excellent correction for all types of aberrations and produce
an exceptional level of optical performance.
Reduce Ghosting
and Flare
Sigma’s super multi-layer lens coating reduces flare and ghosting,
and helps create a natural color balance.
Floating Focus
System
The floating focus system provides extremely high optical performance
from infinity to 1:1 Macro.
Focus Limiter
Switch
A ‘Focus Limiter Switch’ in incorporated on the lens, improving
the speed and accuracy of autofocus by limiting the focus range from 25.7cm
to 48cm and 55cm to infinity.
A screw-in
lens hood
A screw-in lens hood is included for convenient use of circular polarizing
filters. The included hood (LH620-01) is designed so a 77mm lens front
cap can be attached whilst the hood is in place.
Magnification
scale
A magnification scale is displayed on the lens barrel, ensuring ease of
use.
Specifications:
Lens
Construction |
|
10
Elements in 9 Groups |
Angle
of View |
|
34.3
degrees |
Number
of Diaphragm Blades |
|
9
Blades |
Minimum
Aperture |
|
F22 |
Minimum
Focusing Distance |
|
25cm |
Maximum
Magnification |
|
1:1 |
Filter
Size |
|
62mm |
Dimensions |
|
Diameter
76mm X Length 95mm |
Weight
|
|
527g |
|