<s>
The	O
Olympus	B-Device
E-420	I-Device
(	O
or	O
Olympus	O
EVOLT	O
E-420	B-Device
in	O
North	O
America	O
)	O
is	O
a	O
10	O
megapixel	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
(	O
DSLR	B-Device
)	O
camera	O
made	O
by	O
Olympus	O
.	O
</s>
<s>
The	O
camera	O
conforms	O
to	O
the	O
Four	B-Architecture
Thirds	I-Architecture
System	I-Architecture
standard	O
,	O
and	O
together	O
with	O
its	O
siblings	O
in	O
the	O
E-4XX	O
series	O
,	O
it	O
is	O
marketed	O
as	O
the	O
smallest	O
DSLR	B-Device
in	O
the	O
world	O
.	O
</s>
<s>
As	O
with	O
the	O
E-400	B-Algorithm
(	O
in	O
Europe	O
only	O
)	O
and	O
E-410	B-Algorithm
before	O
it	O
,	O
the	O
E-420	B-Device
is	O
notable	O
for	O
its	O
portability	O
,	O
especially	O
when	O
coupled	O
with	O
the	O
simultaneously	O
released	O
Olympus	B-Algorithm
25mm	I-Algorithm
f2.8	I-Algorithm
pancake	O
lens	O
.	O
</s>
<s>
In	O
addition	O
to	O
being	O
based	O
on	O
the	O
inherently	O
more	O
compact	O
Four-Thirds	B-Architecture
system	I-Architecture
,	O
its	O
diminutive	O
size	O
is	O
achieved	O
by	O
the	O
use	O
of	O
a	O
substantially	O
smaller	O
right	O
hand	O
grip	O
than	O
found	O
on	O
most	O
dSLRs	B-Device
(	O
similar	O
to	O
the	O
grip	O
design	O
used	O
on	O
the	O
E-400	B-Algorithm
and	O
E-410	B-Algorithm
,	O
but	O
with	O
an	O
added	O
"	O
ridge	O
"	O
for	O
comfort	O
and	O
stability	O
)	O
,	O
as	O
well	O
as	O
the	O
continued	O
exclusion	O
of	O
Olympus	O
 '	O
well-known	O
sensor-shift	O
image	O
stabilization	O
from	O
the	O
package	O
.	O
</s>
<s>
The	O
E-420	B-Device
uses	O
Olympus	O
 '	O
Supersonic	O
Wave	O
Filter	O
to	O
remove	O
dust	O
from	O
the	O
surface	O
of	O
the	O
image	O
sensor	O
.	O
</s>
<s>
The	O
E-420	B-Device
was	O
announced	O
in	O
March	O
2008	O
to	O
replace	O
the	O
E-410	B-Algorithm
,	O
and	O
shipping	O
started	O
two	O
months	O
later	O
.	O
</s>
<s>
In	O
North	O
America	O
,	O
it	O
is	O
marketed	O
as	O
the	O
EVOLT	O
E-420	B-Device
.	O
</s>
<s>
Advantages	O
over	O
the	O
E-410	B-Algorithm
include	O
Face	O
Detection	O
Technology	O
for	O
up	O
to	O
8	O
faces	O
,	O
Imager	O
AF	O
(	O
contrast-detect	O
autofocus	O
)	O
in	O
Live	B-Device
View	I-Device
mode	O
with	O
certain	O
lenses	O
(	O
which	O
provides	O
11	O
autofocus	O
points	O
as	O
opposed	O
to	O
the	O
usual	O
3	O
)	O
,	O
a	O
redesigned	O
grip	O
,	O
Shadow	O
Adjustment	O
Technology	O
for	O
greater	O
perceived	O
dynamic	O
range	O
,	O
and	O
wireless	O
flash	O
control	O
for	O
up	O
to	O
3	O
flash	O
units	O
.	O
</s>
<s>
According	O
to	O
the	O
official	O
specification	O
,	O
the	O
E-420	B-Device
can	O
accept	O
up	O
to	O
an	O
8	O
GB	O
CF	B-Device
memory	O
card	O
.	O
</s>
