<s>
The	O
Sony	O
α7R	O
III	O
(	O
model	O
ILCE-7RM3	O
)	O
is	O
a	O
full-frame	B-Device
mirrorless	I-Device
interchangeable-lens	I-Device
camera	I-Device
manufactured	O
by	O
Sony	O
.	O
</s>
<s>
It	O
was	O
announced	O
on	O
25	O
October	O
2017	O
as	O
the	O
successor	O
to	O
the	O
Sony	B-Algorithm
α7R	I-Algorithm
II	I-Algorithm
launched	O
two	O
years	O
prior	O
.	O
</s>
<s>
The	O
camera	O
shares	O
many	O
features	O
with	O
the	O
α7R	B-Algorithm
II	I-Algorithm
,	O
including	O
the	O
same	O
42.2	O
MP	O
resolution	O
for	O
still	O
photography	O
.	O
</s>
<s>
It	O
was	O
superseded	O
by	O
the	O
Sony	B-Algorithm
α7R	I-Algorithm
IV	I-Algorithm
in	O
July	O
2019	O
.	O
</s>
<s>
Several	O
improvements	O
were	O
made	O
compared	O
to	O
the	O
α7R	B-Algorithm
II	I-Algorithm
,	O
including	O
the	O
following	O
:	O
</s>
<s>
Dual	O
SD	B-Device
card	I-Device
slots	O
,	O
compared	O
to	O
a	O
single	O
slot	O
in	O
the	O
α7R	B-Algorithm
II	I-Algorithm
.	O
</s>
<s>
One	O
is	O
an	O
SD	B-Device
slot	I-Device
(	O
UHS-I/II	O
compliant	O
)	O
,	O
the	O
other	O
is	O
a	O
dual	O
SD	O
(	O
UHS-I	O
compliant	O
)	O
and	O
Sony	O
Memory	O
Stick	O
Duo	O
slot	O
.	O
</s>
