<s>
The	O
Sony	B-Algorithm
α7R	I-Algorithm
IV	I-Algorithm
(	O
model	O
ILCE-7RM4	B-Algorithm
)	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
16	O
July	O
2019	O
as	O
the	O
successor	O
to	O
the	O
Sony	B-Algorithm
α7R	I-Algorithm
III	I-Algorithm
launched	O
two	O
years	O
prior	O
.	O
</s>
<s>
The	O
Sony	B-Algorithm
α7R	I-Algorithm
IV	I-Algorithm
improved	O
upon	O
the	O
earlier	O
Sony	B-Algorithm
α7R	I-Algorithm
III	I-Algorithm
in	O
several	O
notable	O
ways	O
:	O
</s>
