<s>
The	O
EF8	O
–	O
15mm	O
4L	O
FISHEYE	O
USM	O
is	O
a	O
fisheye	O
zoom	O
lens	O
for	O
Canon	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
cameras	I-Device
(	O
DSLRs	B-Device
)	O
with	O
an	O
EF	B-Application
lens	I-Application
mount	I-Application
.	O
</s>
<s>
It	O
is	O
the	O
first	O
Canon	B-Application
EF	I-Application
lens	I-Application
to	O
offer	O
180°	O
circular	O
fisheye	O
images	O
for	O
full	O
frame	O
image	O
sensors	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
zoom	O
fisheye	O
lens	O
for	O
any	O
DSLR	B-Device
to	O
offer	O
a	O
full	O
180°	O
angle	O
of	O
view	O
in	O
both	O
circular	O
and	O
rectangular	O
image	O
formats	O
.	O
</s>
