INSIDE PHOTOGRAPHY SEPTEMBER,2017

SIGMA RANGE GROWS BY TWO
Sigmas art lens collection has added two new family members
aimed at full frame users. The 24-70 mm f/2.8 DG OS HSM is a
top end with standard zoom as per market analysis.
The fourth generation of this focal length range offers much
more than a leading optical performance from current high
megapixel DSLRs.
Its optical construction features three SLD(super low
dispersion) glass elements and four aspherical elements to
minimize lens flaws including coma and chromatic aberration
and gives excellent across-the - frame sharpness. The lens
features Sigma's renowned optical stabilizer technology and
HSM for first silent auto focusing with the option of full-time
manual overwrite.
The lens construction includes seals to prevent dust and
moisture intrusion, and the front lens element features water
and dust repellent coating. Both help to give the reliable
performance in challenging conditions.This standard zoom is
priced at Rs106039.89/- will be available this August in Canon,
Nikon and Sigma fittings as per various sources.
Again it presumes that the second lens sets new standards in
the ultra-wide angle category and is the seventh prime lens in
the art line. The Sigma 14 mm f/1.8 DG SHM is priced at
Rs127248.02/- with Canon and Sigma mount available now and
the Nikon version towards the end of August.
An ultra-wide lens of this speed makes it ideal for many
subjects including landscape but also more specialist like Astro
photography where such a fast aperture
allows a relatively low ISO.
Outstanding across -the- frame image quality is delivered.
Thanks to the three FLD and four SLD elements while the
inclusion of a large 80 mm moulded glass aspherical
lens element helps to provide the lens with a wide aperture.
This element also helps us to deliver a minimum distortion and
great centered-to-age sharpness.
Image from www.whatdigitalcamera.com