<s>
The	O
Panasonic	B-Device
Lumix	I-Device
DMC-G3	I-Device
is	O
a	O
digital	O
mirrorless	B-Device
interchangeable	I-Device
lens	I-Device
camera	I-Device
adhering	O
to	O
the	O
joint	O
Olympus	O
and	O
Panasonic	O
Micro	B-Operating_System
Four	I-Operating_System
Thirds	I-Operating_System
System	I-Operating_System
(	O
MFT	O
)	O
system	O
design	O
standard	O
.	O
</s>
<s>
The	O
Panasonic	B-Device
Lumix	I-Device
DMC-G3	I-Device
is	O
the	O
eighth	O
Panasonic	O
MFT	O
camera	O
introduced	O
under	O
the	O
standard	O
and	O
the	O
thirteenth	O
model	O
MFT	O
camera	O
introduced	O
by	O
either	O
Olympus	O
or	O
Panasonic	O
,	O
as	O
of	O
the	O
G3	O
product	O
announcement	O
date	O
.	O
</s>
<s>
The	O
G3	O
is	O
not	O
the	O
successor	O
to	O
the	O
Panasonic	B-Device
Lumix	I-Device
DMC-G2	I-Device
but	O
is	O
sold	O
alongside	O
it	O
,	O
placing	O
the	O
G2	O
in	O
the	O
entry-level	O
position	O
that	O
the	O
now-discontinued	O
G10	O
once	O
occupied	O
.	O
</s>
<s>
Physically	O
,	O
the	O
G3	O
approximates	O
the	O
size	O
of	O
the	O
small	O
Panasonic	B-Device
Lumix	I-Device
DMC-GF2	I-Device
,	O
but	O
includes	O
an	O
electronic	B-Algorithm
viewfinder	I-Algorithm
(	O
EVF	B-Algorithm
)	O
and	O
an	O
articulated	O
,	O
touch	O
control-enabled	O
LCD	B-Device
panel	I-Device
.	O
</s>
<s>
This	O
made	O
the	O
G3	O
,	O
upon	O
its	O
introduction	O
,	O
the	O
smallest	O
available	O
MFT	O
camera	O
with	O
a	O
built-in	O
EVF	B-Algorithm
,	O
25%	O
smaller	O
than	O
the	O
G2	O
.	O
</s>
<s>
The	O
G3	O
's	O
smaller	O
physical	O
size	O
limits	O
the	O
space	O
available	O
for	O
manual	O
control	O
buttons	O
and	O
dials	O
,	O
with	O
many	O
functions	O
now	O
controllable	O
through	O
the	O
articulated	O
LCD	B-Device
touch	O
panel	O
on	O
the	O
camera	O
back	O
.	O
</s>
<s>
The	O
G3	O
has	O
a	O
16.7	O
megapixel	O
sensor	O
derived	O
from	O
the	O
one	O
in	O
the	O
top-of-the-line	O
Panasonic	B-Device
Lumix	I-Device
DMC-GH2	I-Device
.	O
</s>
<s>
This	O
is	O
an	O
improvement	O
over	O
the	O
previous	O
12.1	O
megapixel	O
four	B-Architecture
thirds	I-Architecture
sensors	O
used	O
by	O
other	O
Olympus	O
and	O
Panasonic	O
MFT	O
cameras	O
,	O
with	O
the	O
exception	O
of	O
the	O
unique	O
multi-aspect	O
sensors	O
used	O
on	O
the	O
Panasonic	B-Device
Lumix	I-Device
DMC-GH1	I-Device
and	O
GH2	O
hybrid	O
video/still	O
MFT	O
cameras	O
.	O
</s>
<s>
The	O
Micro	B-Operating_System
Four	I-Operating_System
Thirds	I-Operating_System
(	O
MFT	O
)	O
system	O
design	O
standard	O
was	O
jointly	O
announced	O
in	O
2008	O
by	O
Olympus	O
and	O
Panasonic	O
,	O
as	O
a	O
further	O
evolution	O
of	O
the	O
similarly	O
named	O
predecessor	O
Four	B-Architecture
Thirds	I-Architecture
System	I-Architecture
pioneered	O
by	O
Olympus	O
.	O
</s>
<s>
The	O
Micro	B-Operating_System
Four	I-Operating_System
Thirds	I-Operating_System
system	I-Operating_System
standard	O
uses	O
the	O
same	O
sized	O
sensor	O
as	O
the	O
original	O
Four	B-Architecture
Thirds	I-Architecture
system	I-Architecture
,	O
which	O
is	O
half	O
the	O
size	O
of	O
a	O
35mm	O
camera	O
sensor	O
.	O
</s>
<s>
The	O
equivalent	O
Canon	O
APS-C	O
DSLR	O
EF-S	O
18-55mm	O
f3.5-5.6	O
kit	O
lens	O
weighs	O
190g	O
,	O
and	O
is	O
69mm	O
in	O
diameter	O
and	O
80mm	O
in	O
length	O
In	O
35mm	O
camera	O
format	O
the	O
Micro	B-Operating_System
Four	I-Operating_System
Thirds	I-Operating_System
system	I-Operating_System
sensor	O
has	O
a	O
2×	O
magnification	O
factor	O
on	O
its	O
lenses	O
whereas	O
the	O
APS-C	O
sized	O
sensor	O
cameras	O
have	O
1.6	O
×	O
magnification	O
factor	O
.	O
</s>
<s>
While	O
the	O
older	O
Four	B-Architecture
Thirds	I-Architecture
system	I-Architecture
design	O
standard	O
allowed	O
the	O
incorporation	O
of	O
a	O
single	B-Algorithm
lens	I-Algorithm
reflex	I-Algorithm
(	O
SLR	B-Algorithm
)	O
camera	O
design	O
including	O
a	O
mirror	O
box	O
and	O
pentaprism	O
based	O
optical	O
viewfinder	O
system	O
,	O
the	O
MFT	O
system	O
design	O
standard	O
sought	O
to	O
pursue	O
a	O
technically	O
different	O
camera	O
,	O
and	O
specifically	O
slimmed	O
down	O
the	O
key	O
physical	O
specifications	O
which	O
eliminated	O
the	O
ability	O
to	O
include	O
the	O
traditional	O
complex	O
optical	O
path	O
and	O
the	O
bulky	O
mirror	O
box	O
needed	O
for	O
a	O
SLR	B-Algorithm
optical	O
viewfinder	O
.	O
</s>
<s>
Instead	O
,	O
MFT	O
uses	O
either	O
a	O
built-in	O
(	O
Panasonic	O
)	O
or	O
optional	O
(	O
Olympus/Panasonic	O
)	O
compact	O
electronic	B-Algorithm
viewfinder	I-Algorithm
(	O
EVF	B-Algorithm
)	O
and/or	O
LCD	B-Device
back	O
panel	O
displaying	O
a	O
Live	B-Device
view	I-Device
from	O
the	O
main	O
image	O
sensor	O
.	O
</s>
<s>
Use	O
of	O
an	O
EVF/back	O
panel	O
LCD	B-Device
and	O
smaller	O
four	B-Architecture
thirds	I-Architecture
image	B-Algorithm
sensor	I-Algorithm
format	I-Algorithm
and	O
allows	O
for	O
smaller	O
and	O
lighter	O
camera	O
bodies	O
and	O
lenses	O
.	O
</s>
<s>
1.2	O
2011-10-12	O
Enhances	O
the	O
operation	O
of	O
Micro	B-Operating_System
Four	I-Operating_System
Thirds	I-Operating_System
Lens	O
,	O
when	O
coupled	O
via	O
a	O
v1.1	O
mount	O
adapter	O
.	O
</s>
