<s>
The	O
Zeiss	B-Algorithm
Batis	I-Algorithm
Sonnar	I-Algorithm
T*	I-Algorithm
2.8/135mm	I-Algorithm
is	O
a	O
full-frame	O
(	O
FE	O
)	O
telephoto	O
prime	O
lens	O
for	O
the	O
Sony	B-Algorithm
E-mount	I-Algorithm
,	O
announced	O
by	O
Zeiss	O
on	O
April	O
24	O
,	O
2017	O
.	O
</s>
<s>
Though	O
designed	O
for	O
Sony	O
's	O
full	B-Algorithm
frame	I-Algorithm
E-mount	O
cameras	O
,	O
the	O
lens	O
can	O
be	O
used	O
on	O
Sony	O
's	O
APS-C	B-Algorithm
E-mount	O
camera	O
bodies	O
,	O
with	O
an	O
equivalent	O
full-frame	O
field-of-view	O
of	O
202.5mm	O
.	O
</s>
<s>
Portrait	O
photographer	O
Bing	O
Putney	O
,	O
writing	O
an	O
opinion	O
for	O
SLR	O
Lounge	O
ahead	O
of	O
having	O
tested	O
the	O
lens	O
,	O
suggested	O
that	O
the	O
Zeiss	B-Algorithm
Batis	I-Algorithm
Sonnar	I-Algorithm
T*	I-Algorithm
2.8/135mm	I-Algorithm
,	O
given	O
its	O
introductory	O
price	O
,	O
should	O
be	O
a	O
stop	O
faster	O
to	O
realistically	O
compete	O
with	O
the	O
Sony	O
70-200mm	O
f/2.8	O
G	O
Master	O
or	O
Sigma	O
135mm	O
f/1.8	O
DG	O
HSM	O
Art	O
,	O
while	O
also	O
admitting	O
that	O
the	O
Sigma	O
lacks	O
image	O
stabilisation	O
,	O
which	O
the	O
Zeiss	O
has	O
,	O
and	O
requires	O
an	O
adapter	O
to	O
be	O
used	O
on	O
Sony	O
cameras	O
.	O
</s>
