<s>
The	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
(	O
MI	O
Shoe	O
or	O
MIS	O
)	O
is	O
a	O
proprietary	O
camera	O
hotshoe	B-Algorithm
introduced	O
by	O
Sony	O
in	O
2012	O
,	O
replacing	O
an	O
assortment	O
of	O
other	O
proprietary	O
hotshoes	B-Algorithm
used	O
by	O
Sony	O
in	O
various	O
types	O
of	O
cameras	O
in	O
the	O
past	O
.	O
</s>
<s>
The	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
is	O
a	O
proprietary	O
camera	O
hotshoe	B-Algorithm
introduced	O
by	O
Sony	O
on	O
12	O
September	O
2012	O
,	O
replacing	O
an	O
assortment	O
of	O
other	O
proprietary	O
hotshoes	B-Algorithm
used	O
by	O
Sony	O
in	O
various	O
types	O
of	O
cameras	O
in	O
the	O
past	O
,	O
including	O
the	O
Auto-lock	B-Algorithm
Accessory	I-Algorithm
Shoe	I-Algorithm
(	O
aka	O
AAS	O
or	O
"	O
iISO	O
"	O
shoe	O
)	O
introduced	O
by	O
Minolta	O
in	O
1988	O
and	O
used	O
on	O
Sony	B-Algorithm
α	I-Algorithm
DSLRs	B-Device
,	O
SLTs	B-Device
and	O
some	O
NEX	B-Algorithm
cameras	O
,	O
and	O
the	O
Smart	O
Accessory	O
Terminals	O
types	O
1	O
(	O
SAT	O
)	O
and	O
2	O
(	O
SAT2	O
)	O
used	O
on	O
the	O
majority	O
of	O
the	O
Sony	B-Algorithm
α	I-Algorithm
NEX-line	O
.	O
</s>
<s>
It	O
also	O
replaces	O
Sony	O
's	O
former	O
Cyber-shot	B-Device
hotshoe	B-Algorithm
,	O
Intelligent	O
Accessory	B-Algorithm
Shoe	I-Algorithm
(	O
IAS	O
)	O
and	O
Active	O
Interface	O
Shoe	O
(	O
AIS	O
)	O
.	O
</s>
<s>
At	O
first	O
sight	O
,	O
the	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
resembles	O
a	O
standard	O
ISO	B-Algorithm
518	I-Algorithm
hotshoe	B-Algorithm
with	O
middle	O
contact	O
and	O
frame	O
ground	O
and	O
without	O
any	O
vendor-specific	O
extra	O
contacts	O
,	O
but	O
additional	O
electrical	O
contacts	O
are	O
hidden	O
under	O
the	O
front	O
of	O
the	O
hotshoe	B-Algorithm
.	O
</s>
<s>
Therefore	O
,	O
the	O
hotshoe	B-Algorithm
is	O
mechanically	O
compatible	O
with	O
any	O
ISO	O
518-based	O
equipment	O
,	O
and	O
while	O
it	O
does	O
not	O
allow	O
to	O
control	O
third-party	O
flashes	O
,	O
ISO-based	O
flashes	O
can	O
be	O
triggered	O
at	O
least	O
.	O
</s>
<s>
The	O
hotshoe	B-Algorithm
also	O
features	O
three	O
holes	O
in	O
its	O
metal	O
base	O
in	O
order	O
to	O
support	O
an	O
optional	O
locking	O
mechanism	O
in	O
the	O
flash	O
or	O
other	O
hotshoe	B-Algorithm
device	O
.	O
</s>
<s>
It	O
does	O
not	O
,	O
however	O
,	O
provide	O
an	O
auto-locking	O
mechanism	O
as	O
on	O
the	O
Auto-lock	B-Algorithm
Accessory	I-Algorithm
Shoe	I-Algorithm
.	O
</s>
<s>
Electrically	O
,	O
the	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
includes	O
all	O
signals	O
of	O
both	O
the	O
Auto-lock	B-Algorithm
Accessory	I-Algorithm
Shoe	I-Algorithm
and	O
the	O
Smart	O
Accessory	O
Terminal	O
2	O
,	O
thereby	O
allowing	O
passive	O
electromechanical	O
adapters	O
to	O
be	O
used	O
.	O
</s>
<s>
Both	O
adapters	O
route	O
through	O
the	O
"	O
F2	O
"	O
and	O
"	O
F3	O
"	O
signals	O
;	O
the	O
Auto-lock	O
hotshoe	B-Algorithm
's	O
"	O
F1	O
"	O
signal	O
is	O
connected	O
to	O
the	O
middle	O
contact	O
of	O
the	O
Multi	B-Algorithm
Interface	I-Algorithm
shoe	I-Algorithm
,	O
not	O
pin	O
20	O
(	O
"	O
F1#	O
"	O
)	O
,	O
which	O
is	O
left	O
open	O
.	O
</s>
<s>
The	O
ADP-AMA	O
'	O
s	O
Auto-lock	O
hotshoe	B-Algorithm
features	O
a	O
switch	O
,	O
which	O
shorts	O
MIS	O
pin	O
21	O
(	O
"	O
PGND	O
"	O
)	O
to	O
"	O
GND	O
"	O
when	O
the	O
adapter	O
is	O
mounted	O
on	O
a	O
hotshoe	B-Algorithm
without	O
hole	O
(	O
as	O
on	O
a	O
camera	O
,	O
or	O
with	O
ADP-MAA	O
or	O
FS-1200	O
)	O
.	O
</s>
<s>
Assuming	O
that	O
pin	O
21	O
is	O
tied	O
to	O
PGND	O
in	O
a	O
camera	O
's	O
hotshoe	B-Algorithm
,	O
this	O
allows	O
flashes	O
compatible	O
with	O
the	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
to	O
detect	O
if	O
they	O
are	O
mounted	O
on	O
the	O
camera	O
or	O
not	O
as	O
it	O
is	O
necessary	O
for	O
ADI	O
to	O
work	O
.	O
</s>
<s>
The	O
first	O
cameras	O
to	O
use	O
the	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
are	O
the	O
SLT-A99	B-Algorithm
,	O
NEX-6	B-Algorithm
,	O
NEX-VG900	O
,	O
NEX-VG30	O
,	O
DSC-RX1	B-Algorithm
and	O
DSC-HX50	B-Algorithm
.	O
</s>
<s>
It	O
is	O
also	O
used	O
on	O
all	O
newer	O
cameras	O
including	O
the	O
ILCA-series	O
and	O
ILCE-series	O
.	O
</s>
<s>
In	O
2014	O
,	O
the	O
Hasselblad	O
HV	O
has	O
become	O
the	O
first	O
third-party	O
camera	O
to	O
support	O
the	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
as	O
well	O
.	O
</s>
<s>
In	O
2013	O
,	O
Sony	O
released	O
a	O
third	O
hotshoe	B-Algorithm
adapter	O
,	O
named	O
ADP-MAC	O
.	O
</s>
<s>
It	O
allows	O
to	O
mount	O
equipment	O
with	O
Active	O
Interface	O
Shoe	O
onto	O
cameras	O
with	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
.	O
</s>
<s>
The	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
was	O
integrated	O
into	O
the	O
existing	O
Minolta/Sony	O
TTL	O
flash	O
cable	O
system	O
by	O
the	O
introduction	O
of	O
the	O
flash	B-Algorithm
shoe	I-Algorithm
FA-CS1M	O
(	O
VX9371	O
)	O
,	O
a	O
remote	O
hotshoe	B-Algorithm
with	O
four-pin	O
TTL	O
cable	O
port	O
and	O
a	O
Multi	B-Algorithm
Interface	I-Algorithm
Shoe	I-Algorithm
on	O
its	O
top	O
and	O
bottom	O
.	O
</s>
