march 2015 Better PhotograPhy
The lens exhibits
excellent overall
sharpness even at f/2.8.
However, there is some
amount of fringing that
is visible.
Exposure: 1/50sec at f/2.8
(ISO 100)
F I N A L R A T I N G S
Features
Maximum aperture of f/1.8, minimum
focusing distance of 0.23m
15/20
Performance
Excellent sharpness, barrel distortion
33/35
Build Quality
Plastic feel
20/25
Ergonomics
No full time manual focus
13/15
Warranty & Support
Wide area service network, two
year warranty
3/5
Value for Money
Who should buy it? Users having the A-mount
camera with APS-C sensor, who want to shoot street and
people in available light conditions.
Why? With a maximum aperture of f/1.8, it will allow
users to shoot in low light. Additionally, it exhibits good
overall sharpness.
OVERALL
84%
Raj Lalwani
from the motor by switching from AF to
MF can damage the lens. The minimum
focus distance of 0.23m is reasonably
good, at which distance the lens provides a
maximum magnification ratio of 1:4.
Handling
This is a light lens that works rather well
on the Alpha 77 II, despite its plastic feel.
The focus ring is quite narrow. I always
have a personal preference for an aperture
ring to be present, and this lens does not
have it. Neither does this lens make setting
hyperfocal distances particularly easy,
which is a shame. Somehow, all the leading
manufacturers seem to be missing all these
points nowadays, especially in this category
of lenses where these features would be
especially welcome.
Performance
So far, everything about the lens seemed
average and decidedly lacklustre.
However, it did throw up some good
surprises when it came to performance.
It is exceptionally sharp at f/1.8, especially
at the center of the frame. There was visible
lateral fringing at the edges, but it was well-
controlled for a lens of its type. The bokeh
has the expected sharp edges. By f/2.8 and
f/4, there is a dramatic improvement to the
point where this lens starts competing with
far more expensive primes. Bokeh too is
significantly improved with softer edges.
There is a slight, easily correctable barrel
distortion. Other optical aberrations were
kept to a minimum.
Despite the older AF motor, focusing
speed is quick, but there is a slight hunting at
f/1.8 especially at closer focussing distances
because of the critical depth of field. On the
whole, I was very happy with what the lens
was able to deliver at its price point.
Conclusion
The lens is priced at Rs 15,490, which is
about the equivalent price from other
manufacturers for lenses of its kind.
On the whole, my gripe with the general
design of lenses of its type extends to all
manufacturers, and it is unfortunate that
Sony DT 35mm fell prey to most of the
same issues. I say unfortunate... because
this is otherwise an exceptional lens, both
in optical performance and in value.
Serious Sony SLT users who don’t
otherwise have a viable upgrade path at
this focal length will be happy to know that
the Sony DT 35mm f/1.8 SAM is all they
really need.
Suresh Narayanan