<s>
The	O
Fujinon	B-Algorithm
XF	I-Algorithm
56mm	I-Algorithm
F1.2	I-Algorithm
R	I-Algorithm
is	O
an	O
interchangeable	O
camera	O
lens	O
announced	O
by	O
Fujifilm	O
on	O
January	O
6	O
,	O
2014	O
.	O
</s>
<s>
In	O
September	O
2014	O
,	O
Fujifilm	O
announced	O
a	O
variant	O
of	O
this	O
lens	O
,	O
the	O
Fujinon	B-Algorithm
XF	I-Algorithm
56mm	I-Algorithm
F1.2	I-Algorithm
R	I-Algorithm
APD	O
,	O
which	O
has	O
an	O
additional	O
APD	O
filter	O
element	O
for	O
apodisation	B-Algorithm
,	O
with	O
the	O
goal	O
of	O
improving	O
the	O
appearance	O
of	O
out-of-focus	O
areas	O
,	O
or	O
bokeh	O
,	O
when	O
the	O
lens	O
is	O
used	O
wide	O
open	O
.	O
</s>
<s>
This	O
design	O
principle	O
is	O
based	O
on	O
an	O
optical	O
technology	O
originally	O
invented	O
(	O
and	O
patented	O
)	O
by	O
Minolta	O
in	O
the	O
1980s	O
and	O
implemented	O
in	O
the	O
Minolta/Sony	O
series	O
of	O
Smooth	B-Algorithm
Trans	I-Algorithm
Focus	I-Algorithm
lenses	O
since	O
1999	O
.	O
</s>
