<s>
The	O
Canon	B-Device
PowerShot	I-Device
G	I-Device
is	O
a	O
series	O
of	O
digital	B-Device
cameras	I-Device
introduced	O
by	O
Canon	O
in	O
its	O
PowerShot	B-Algorithm
line	O
in	O
2000	O
.	O
</s>
<s>
The	O
G	O
series	O
cameras	O
are	O
Canon	O
's	O
flagship	O
compact	O
models	O
aimed	O
at	O
photography	O
enthusiasts	O
desiring	O
more	O
flexibility	O
than	O
a	O
point-and-shoot	B-Algorithm
without	O
the	O
bulk	O
of	O
a	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
camera	I-Device
.	O
</s>
<s>
The	O
G	O
series	O
has	O
a	O
lithium-ion	O
battery	O
,	O
full	O
manual	O
exposure	O
control	O
,	O
an	O
articulated	O
LCD	B-Device
screen	I-Device
(	O
G7	O
,	O
G9	O
,	O
G10	O
,	O
G15	O
,	O
and	O
G16	O
have	O
a	O
fixed	O
screen	O
)	O
,	O
Raw	B-Application
image	I-Application
format	I-Application
capture	O
(	O
all	O
models	O
except	O
G7	O
)	O
,	O
a	O
lens	O
with	O
a	O
wider	O
maximum	O
aperture	B-General_Concept
than	O
standard	O
PowerShot	B-Algorithm
models	O
,	O
remote	O
capture	O
(	O
except	O
G11	O
)	O
,	O
and	O
faster	O
image	O
processing	O
.	O
</s>
<s>
The	O
range	O
also	O
includes	O
a	O
hot	B-Algorithm
shoe	I-Algorithm
(	O
except	O
G7	B-Algorithm
X	I-Algorithm
and	O
G9	B-Algorithm
X	I-Algorithm
)	O
for	O
an	O
external	O
flashgun	O
,	O
including	O
Canon	B-Algorithm
's	I-Algorithm
EX	I-Algorithm
range	I-Algorithm
.	O
</s>
<s>
New	O
models	O
in	O
the	O
series	O
have	O
larger	O
sensors	O
than	O
most	O
other	O
point-and-shoot	B-Algorithm
cameras	I-Algorithm
(	O
G1X	B-Algorithm
,	O
G1X	B-Algorithm
Mark	I-Algorithm
II	I-Algorithm
,	O
G7X	B-Algorithm
)	O
.	O
</s>
<s>
A	O
flip	O
out	O
and	O
twist	O
LCD	B-Device
,	O
along	O
with	O
a	O
smaller	O
status	O
LCD	B-Device
on	O
the	O
top	O
of	O
the	O
camera	O
.	O
</s>
<s>
Raw	B-Application
image	I-Application
format	I-Application
capture	O
.	O
</s>
<s>
1/1.8	O
″	O
CCD	B-Algorithm
sensor	I-Algorithm
.	O
</s>
<s>
Manual	O
selection	O
of	O
aperture	B-General_Concept
and	O
shutter	B-Algorithm
priority	I-Algorithm
.	O
</s>
<s>
Custom	O
white	B-Algorithm
balance	I-Algorithm
.	O
</s>
<s>
Hot-shoe	B-Algorithm
for	O
external	O
flash	O
.	O
</s>
<s>
USB	B-Protocol
connectivity	O
.	O
</s>
<s>
A	O
Compact	B-Device
Flash	I-Device
card	O
slot	O
.	O
</s>
<s>
Previous	O
G	O
series	O
models	O
had	O
a	O
fast	O
lens	O
,	O
raw	B-Application
image	I-Application
format	I-Application
capture	O
,	O
and	O
a	O
tilt-and-swivel	O
LCD	B-Device
.	O
</s>
<s>
Change	O
to	O
a	O
fixed	O
LCD	B-Device
rather	O
than	O
a	O
tilt-and-swivel	O
model	O
.	O
</s>
<s>
The	O
fixed	O
LCD	B-Device
was	O
larger	O
(	O
2.5	O
″	O
versus	O
2.0	O
″	O
on	O
the	O
G6	O
)	O
and	O
increased	O
the	O
number	O
of	O
pixels	O
by	O
75%	O
.	O
</s>
<s>
The	O
tilt-and	O
swivel	O
LCD	B-Device
was	O
restored	O
with	O
the	O
G11	O
,	O
but	O
removed	O
again	O
with	O
the	O
G15	O
.	O
</s>
<s>
Removal	O
of	O
RAW	B-Application
image	I-Application
format	I-Application
on	O
G7	O
,	O
but	O
returned	O
for	O
the	O
G9	O
–	O
G15	O
.	O
</s>
<s>
Change	O
from	O
CompactFlash	B-Device
to	O
SDHC	O
card	O
storage	O
.	O
</s>
<s>
Canon	O
G12	O
records	O
videos	O
up	O
to	O
720p	O
HD	O
quality	O
,	O
G15	O
1080p	O
HD	O
and	O
G1	B-Algorithm
X	I-Algorithm
1080p	O
.	O
</s>
<s>
G15	O
and	O
G1	B-Algorithm
X	I-Algorithm
do	O
allow	O
to	O
use	O
zoom	O
and	O
autofocus	O
during	O
video	O
recording	O
.	O
</s>
<s>
DPReview	O
expressed	O
their	O
disappointment	O
with	O
the	O
loss	O
of	O
RAW	B-Application
format	I-Application
,	O
while	O
Luminous	O
Landscape	O
stated	O
that	O
the	O
removal	O
of	O
RAW	O
required	O
too	O
many	O
technical	O
decisions	O
had	O
to	O
be	O
made	O
while	O
shooting	O
instead	O
of	O
during	O
post-processing	O
.	O
</s>
<s>
RAW	O
support	O
was	O
restored	O
,	O
and	O
it	O
has	O
a	O
larger	O
LCD	B-Device
screen	I-Device
,	O
and	O
a	O
1/1.7	O
″	O
sensor	B-Algorithm
rather	O
than	O
the	O
1/1.8	O
″	O
sensor	B-Algorithm
on	O
previous	O
models	O
.	O
</s>
<s>
The	O
G11	O
,	O
released	O
in	O
2009	O
,	O
reintroduced	O
the	O
flip	O
out	O
and	O
twist	O
LCD	B-Device
(	O
2.8	O
″	O
)	O
.	O
</s>
<s>
It	O
also	O
has	O
a	O
lower	O
resolution	O
sensor	B-Algorithm
than	O
that	O
of	O
its	O
predecessor	O
,	O
the	O
G10	O
,	O
because	O
the	O
new	O
CCD	B-Algorithm
favoured	O
low	O
light	O
performance	O
over	O
resolution	O
.	O
</s>
<s>
Because	O
of	O
the	O
much	O
larger	O
sensor	B-Algorithm
the	O
G1	B-Algorithm
X	I-Algorithm
still	O
remained	O
the	O
top	O
model	O
despite	O
G15	O
having	O
nominally	O
larger	O
aperture	B-General_Concept
.	O
</s>
<s>
The	O
G1	B-Algorithm
X	I-Algorithm
was	O
introduced	O
in	O
February	O
2012	O
and	O
is	O
a	O
significant	O
step	O
out	O
of	O
the	O
traditional	O
G-line	O
because	O
of	O
its	O
much	O
larger	O
sensor	B-Algorithm
,	O
and	O
it	O
is	O
the	O
first	O
model	O
with	O
a	O
CMOS	B-Architecture
sensor	I-Architecture
.	O
</s>
<s>
The	O
G1	B-Algorithm
X	I-Algorithm
's	O
sensor	B-Algorithm
measures	O
18.7	O
x	O
14.0mm	O
(	O
1.5	B-Algorithm
"	I-Algorithm
)	O
,	O
which	O
makes	O
it	O
even	O
16	O
percent	O
bigger	O
than	O
the	O
Micro	B-Operating_System
Four	I-Operating_System
Thirds	I-Operating_System
standard	I-Operating_System
(	O
MFT	O
)	O
,	O
and	O
20	O
percent	O
smaller	O
than	O
APS-C	B-Algorithm
Canon	O
sensor	B-Algorithm
.	O
</s>
<s>
G1	B-Algorithm
X	I-Algorithm
was	O
significant	O
that	O
it	O
did	O
not	O
replace	O
the	O
older	O
G12	O
but	O
created	O
a	O
parallel	O
model	O
in	O
the	O
first	O
time	O
in	O
G-series	O
.	O
</s>
<s>
With	O
its	O
maximum	O
aperture	B-General_Concept
over	O
its	O
zoom	O
range	O
being	O
F2.8-5.8	O
,	O
and	O
with	O
its	O
sensor	B-Algorithm
smaller	O
than	O
Canon	O
APS-C	B-Algorithm
sensor	B-Algorithm
,	O
the	O
G1	B-Algorithm
X	I-Algorithm
camera-lens	O
system	O
can	O
be	O
compared	O
to	O
the	O
APS-C	B-Algorithm
DSLRs	B-Device
using	O
the	O
Canon	O
EF-S	O
18-55mm	O
f/3.5	O
-5.6	O
IS	O
II	O
SLR	O
Kit	O
Lens	O
:	O
the	O
G1	B-Algorithm
X	I-Algorithm
is	O
a	O
little	O
faster	O
(	O
wider	O
aperture	B-General_Concept
)	O
at	O
the	O
wide	O
angle	O
and	O
comparable	O
thereafter	O
,	O
but	O
with	O
a	O
longer	O
zoom	O
.	O
</s>
<s>
Released	O
at	O
early	O
2014	O
,	O
the	O
G1	B-Algorithm
X	I-Algorithm
Mark	O
II	O
has	O
a	O
13.1-megapixel	O
(	O
in	O
4:3	O
aspect	O
ratio	O
)	O
,	O
but	O
still	O
1.5	B-Algorithm
"	I-Algorithm
CMOS	B-Architecture
sensor	I-Architecture
as	O
the	O
predecessor	O
,	O
a	O
24-120mm	O
(	O
5x	O
)	O
f/2	O
-3.9	O
relatively	O
a	O
fast	O
zoom	O
lens	O
,	O
for	O
better	O
shallow	O
depth	O
of	O
field	O
throughout	O
the	O
maximum-aperture	O
range	O
,	O
and	O
sharp	O
shots	O
even	O
in	O
low	O
light	O
,	O
a	O
DIGIC	B-General_Concept
6	O
processor	O
with	O
capability	O
to	O
take	O
1080/60p	O
MP4	O
video	O
shoots	O
.	O
</s>
<s>
In	O
October	O
2017	O
Canon	O
introduced	O
the	O
third	O
model	O
of	O
the	O
G1	O
X-series	O
:	O
Canon	B-Algorithm
PowerShot	I-Algorithm
G1	I-Algorithm
X	I-Algorithm
mark	O
III	O
.	O
</s>
<s>
It	O
replaced	O
the	O
1.5	B-Algorithm
"	I-Algorithm
sensor	B-Algorithm
with	O
a	O
24	O
megapixel	O
APS-C	B-Algorithm
sensor	B-Algorithm
used	O
in	O
many	O
Canon	B-Algorithm
EOS	I-Algorithm
DSLR	B-Device
and	O
mirrorless	O
cameras	O
.	O
</s>
<s>
The	O
camera	O
also	O
was	O
much	O
reduced	O
in	O
size	B-Algorithm
and	O
weight	O
,	O
weighting	O
only	O
399	O
grams	O
.	O
</s>
<s>
To	O
achieve	O
the	O
reduced	O
size	B-Algorithm
the	O
zoom	O
range	O
was	O
reduced	O
to	O
15	O
–	O
45mm	O
(	O
24	O
–	O
72mm	O
in	O
35mm	O
equivalence	O
)	O
and	O
the	O
size	B-Algorithm
of	O
the	O
aperture	B-General_Concept
was	O
reduced	O
from	O
f/2.0	O
-3.9	O
to	O
f/2.8	O
-5.6	O
.	O
</s>
<s>
The	O
Mark	O
III	O
also	O
has	O
internal	O
viewfinder	O
and	O
a	O
DSLR-like	O
form	O
factor	O
much	O
similar	O
to	O
the	O
G5	B-Algorithm
X	I-Algorithm
.	O
</s>
<s>
It	O
also	O
is	O
the	O
first	O
PowerShot	B-Algorithm
(	O
with	O
the	O
exception	O
of	O
waterproof	O
D-series	O
)	O
to	O
have	O
weather	O
sealing	O
.	O
</s>
<s>
G3	B-Algorithm
X	I-Algorithm
is	O
the	O
superzoom	O
model	O
in	O
the	O
G-series	O
.	O
</s>
<s>
It	O
offers	O
a	O
25x	O
zoom	O
(	O
24	O
–	O
600mm	O
equivalent	O
)	O
with	O
aperture	B-General_Concept
f/2.8	O
-5.6	O
.	O
</s>
<s>
These	O
were	O
G5	B-Algorithm
X	I-Algorithm
and	O
G9	B-Algorithm
X	I-Algorithm
respectively	O
.	O
</s>
<s>
Both	O
of	O
these	O
use	O
one	O
inch	O
sensor	B-Algorithm
instead	O
of	O
the	O
older	O
1/1.7	B-Algorithm
"	I-Algorithm
.	O
</s>
<s>
The	O
G5	B-Algorithm
X	I-Algorithm
is	O
essentially	O
a	O
G7	B-Algorithm
X	I-Algorithm
with	O
an	O
integral	O
electronic	O
viewfinder	O
.	O
</s>
<s>
The	O
G5	B-Algorithm
X	I-Algorithm
also	O
has	O
a	O
DSLR-like	O
form	O
factor	O
with	O
viewfinder	O
in	O
the	O
center	O
instead	O
of	O
the	O
rangefinder-like	O
in	O
the	O
G16	O
.	O
</s>
<s>
The	O
G9	B-Algorithm
X	I-Algorithm
is	O
similar	O
in	O
size	B-Algorithm
to	O
the	O
S120	O
it	O
replaced	O
.	O
</s>
<s>
The	O
larger	O
sensor	B-Algorithm
necessitated	O
that	O
the	O
zoom	O
range	O
was	O
reduced	O
from	O
5x	O
to	O
3x	O
i.e.	O
</s>
<s>
With	O
the	O
introduction	O
of	O
the	O
G9	B-Algorithm
X	I-Algorithm
the	O
S-series	O
was	O
discontinued	O
and	O
all	O
top	O
models	O
are	O
in	O
G-series	O
.	O
</s>
<s>
It	O
also	O
meant	O
the	O
end	O
of	O
the	O
use	O
of	O
1/1.7	B-Algorithm
"	I-Algorithm
(	O
9.5mm	O
diagonal	O
)	O
sensors	O
in	O
Canon	O
cameras	O
and	O
all	O
top	O
models	O
being	O
at	O
least	O
one	O
inch	O
(	O
16mm	O
diagonal	O
)	O
and	O
other	O
models	O
having	O
1/2.3	O
"	O
(	O
7.7mm	O
diagonal	O
)	O
.	O
</s>
<s>
In	O
2017	O
Canon	O
updated	O
the	O
G9	B-Algorithm
X	I-Algorithm
into	O
G9	B-Algorithm
X	I-Algorithm
mark	O
II	O
with	O
the	O
new	O
Digic	B-General_Concept
7	O
processor	O
,	O
faster	O
operation	O
and	O
built	O
in	O
RAW	O
processing	O
.	O
</s>
<s>
With	O
the	O
G7	B-Algorithm
X	I-Algorithm
,	O
Canon	O
added	O
its	O
own	O
model	O
to	O
the	O
large-sensor	O
compact	B-Algorithm
camera	I-Algorithm
market	O
.	O
</s>
<s>
The	O
G7X	B-Algorithm
is	O
Canon	O
's	O
first	O
1-inch	O
sensor	B-Algorithm
model	O
,	O
and	O
boasts	O
20.2-megapixels	O
and	O
the	O
DIGIC	B-General_Concept
6	O
image	O
processor	O
.	O
</s>
<s>
It	O
has	O
a	O
4.2x	O
zoom	O
(	O
24-100mm	O
in	O
35mm	O
format	O
)	O
,	O
a	O
maximum	O
aperture	B-General_Concept
of	O
f/1.8-f/2.8	O
,	O
ISO	O
12800	O
,	O
Full	O
HD	O
video	O
shooting	O
,	O
31	O
AF	O
points	O
,	O
and	O
Wi-Fi/NFC	O
support	O
.	O
</s>
<s>
It	O
inherits	O
many	O
characteristics	O
of	O
the	O
previous	O
G-series	O
cameras	O
,	O
including	O
the	O
comparable	O
G1X	B-Algorithm
Mark	I-Algorithm
II	I-Algorithm
.	O
</s>
<s>
The	O
G7	B-Algorithm
X	I-Algorithm
is	O
the	O
first	O
G-series	O
camera	O
without	O
a	O
hot	B-Algorithm
shoe	I-Algorithm
.	O
</s>
<s>
In	O
2016	O
Canon	O
announced	O
the	O
Canon	B-Algorithm
PowerShot	I-Algorithm
G7	I-Algorithm
X	I-Algorithm
Mark	I-Algorithm
II	I-Algorithm
which	O
follows	O
the	O
original	O
G7	B-Algorithm
X	I-Algorithm
.	O
</s>
<s>
It	O
retains	O
the	O
same	O
sensor	B-Algorithm
and	O
lens	O
as	O
its	O
predecessor	O
.	O
</s>
<s>
The	O
main	O
improvement	O
is	O
the	O
new	O
DIGIC	B-General_Concept
7	O
Processor	O
.	O
</s>
<s>
In	O
fact	O
the	O
G7	B-Algorithm
X	I-Algorithm
Mark	I-Algorithm
II	I-Algorithm
is	O
the	O
first	O
Canon	O
camera	O
to	O
use	O
this	O
new	O
chip	O
.	O
</s>
<s>
Some	O
other	O
improvements	O
are	O
that	O
the	O
screen	O
can	O
now	O
flip	O
both	O
up	O
and	O
down	O
,	O
a	O
new	O
grip	O
,	O
tiltable	O
flash	O
,	O
auto	O
functionality	O
for	O
the	O
ND	O
filter	O
,	O
battery	O
charging	O
over	O
USB	B-Protocol
,	O
and	O
a	O
new	O
timelapse	O
mode	O
.	O
</s>
<s>
The	O
G7	B-Algorithm
X	I-Algorithm
Mark	I-Algorithm
II	I-Algorithm
costs	O
$650	O
on	O
the	O
official	O
Canon	O
website	O
.	O
</s>
<s>
ModelReleasedateSensorresolution	O
,	O
size	B-Algorithm
,	O
typeVideo	O
specificationLens	O
(	O
35	O
mm	O
equiv	O
)	O
zoom	O
,	O
apertureImagepro-cessorLCD	O
screensize	O
,	O
subpixelsView	O
finderMemorycardSizeW×H×	O
D(mm )	O
Weight(body )	O
Notes	O
G180px	O
September	O
2000	O
3.3	O
MP2048	O
×	O
15361/1.8	O
″	O
CCD320x240	O
15fps34	O
–	O
102	O
mm	O
(	O
3×	O
)	O
f/2.0	O
–	O
2.51.8	O
″	O
vari-angleOpticalCF	O
120	O
×	O
77	O
×	O
64	O
420	O
g	O
Initial	O
PowerShot	B-Device
G	I-Device
series	O
model	O
.	O
</s>
<s>
G280px	O
August	O
20014	O
MP2272	O
×	O
17041/1.8	O
″	O
CCD	B-Algorithm
121	O
×	O
77	O
×	O
64	O
510	O
g	O
G380px	O
September	O
200235	O
–	O
140	O
mm	O
(	O
4×	O
)	O
f/2.0	O
–	O
3.0DIGIC121	O
×	O
74	O
×	O
70481	O
g	O
Introduction	O
of	O
DIGIC	B-General_Concept
processor	O
.	O
</s>
<s>
640x480	O
30fps35	O
–	O
210	O
mm	O
(	O
6×	O
)	O
f/2.8	O
–	O
4.8DIGIC	O
III	O
2.5	O
″	O
fixedSD	O
,	O
SDHC	O
,	O
MMC	O
106	O
×	O
72	O
×	O
43	O
320	O
g	O
Introduction	O
of	O
DIGIC	B-General_Concept
III	O
processor	O
.	O
</s>
<s>
Face	B-General_Concept
detection	I-General_Concept
auto	O
focus	O
.	O
</s>
<s>
No	O
Compact	B-Device
Flash	I-Device
support	O
.	O
</s>
<s>
G980px	O
August	O
2007	O
12.1	O
MP4000	O
×	O
30001/1.7	O
″	O
CCD	B-Algorithm
3.0	O
″	O
fixed	O
Similar	O
to	O
the	O
G7	O
.	O
</s>
<s>
Most	O
notable	O
changes	O
were	O
reintroduction	O
of	O
Raw	B-Application
image	I-Application
format	I-Application
capture	O
,	O
a	O
better	O
LCD	B-Device
,	O
and	O
a	O
new	O
sensor	B-Algorithm
.	O
</s>
<s>
G1080px	O
October	O
2008	O
14.7	O
MP4416	O
×	O
33121/1.7	O
″	O
CCD640x480	O
30fps	O
28	O
–	O
140	O
mm	O
(	O
5×	O
)	O
f/2.8	O
–	O
4.5DIGIC	O
4	O
3.0	O
″	O
fixedSD	O
,	O
SDHC	O
,	O
MMC	O
,	O
MMC+	O
,	O
HC	O
MMC+	O
109	O
×	O
78	O
×	O
46	O
350	O
g	O
Introduced	O
DIGIC	B-General_Concept
4	O
and	O
a	O
redesigned	O
wide-angle	O
lens	O
with	O
shorter	O
zoom	O
range	O
.	O
</s>
<s>
Increased	O
LCD	B-Device
and	O
CCD	B-Algorithm
resolution	O
.	O
</s>
<s>
G1180	O
px	O
October	O
2009	O
10	O
MP3648	O
×	O
27361/1.7	O
″	O
CCD	B-Algorithm
2.8	O
″	O
vari-angle	O
112	O
×	O
76	O
×	O
48	O
355	O
g	O
Reduced	O
CCD	B-Algorithm
resolution	O
to	O
10	O
MP	O
.	O
</s>
<s>
Added	O
HDMI	B-Protocol
Out	O
.	O
</s>
<s>
720p	O
30fps	O
28	O
–	O
112	O
mm	O
(	O
4×	O
)	O
f/2.8	O
–	O
5.8	O
DIGIC	B-General_Concept
5	O
3.0	O
″	O
vari-angle	O
117	O
×	O
81	O
×	O
65	O
492	O
g	O
First	O
PowerShot	B-Device
G	I-Device
with	O
CMOS	B-Architecture
.	O
</s>
<s>
Introduced	O
DIGIC	B-General_Concept
5	O
and	O
a	O
redesigned	O
4×	O
wide-angle	O
lens	O
.	O
</s>
<s>
320x240	O
240fps	O
DIGIC	B-General_Concept
6SD	O
,	O
SDHC	O
,	O
SDXC	O
109	O
×	O
76	O
×	O
40	O
356	O
g	O
Adds	O
Wi-Fi	O
and	O
DIGIC	B-General_Concept
6	O
.	O
</s>
<s>
Last	O
of	O
the	O
old	O
series	O
with	O
an	O
OVF	O
and	O
a	O
small	O
sensor	B-Algorithm
.	O
</s>
<s>
G1	B-Algorithm
X	I-Algorithm
Mark	O
II	O
February	O
2014	O
3:2	O
12	O
,	O
8	O
MP	O
4.352	O
x	O
2.9044:3	O
13.1	O
MP	O
4.160	O
x	O
3.1201.5	O
″	O
CMOS1080p	O
30fps	O
24	O
–	O
120	O
mm	O
(	O
5×	O
)	O
f/2.0	O
–	O
3.93.0	O
″	O
tilt	O
LCDElectronic	O
,	O
optional	O
116	O
x	O
74	O
x	O
66	O
558	O
g	O
Introduced	O
a	O
redesigned	O
5×	O
wide-angle	O
lens	O
.	O
</s>
<s>
Note	O
that	O
the	O
weight	O
up	O
to	O
G12	O
is	O
for	O
the	O
camera	O
without	O
the	O
battery	O
and	O
from	O
G1	B-Algorithm
X	I-Algorithm
on	O
the	O
camera	O
including	O
the	O
battery	O
and	O
the	O
memory	O
card	O
.	O
</s>
<s>
The	O
Powershot	B-Device
G	I-Device
series	O
can	O
employ	O
several	O
photographic	O
accessories	O
:	O
</s>
<s>
Powershot	B-Device
G	I-Device
series	O
cameras	O
have	O
a	O
standard	O
threaded	O
socket	O
for	O
mounting	O
to	O
a	O
monopod	O
or	O
tripod	O
.	O
</s>
<s>
With	O
the	O
hot-shoe	B-Algorithm
for	O
external	O
flash	O
,	O
the	O
Powershot	B-Device
G	I-Device
series	O
can	O
accept	O
not	O
only	O
compatible	O
flash	O
units	O
but	O
also	O
various	O
connecting	O
cords	O
and	O
wireless	O
triggers	O
.	O
</s>
<s>
However	O
,	O
the	O
Powershot	B-Device
G	I-Device
series	O
is	O
sensitive	O
to	O
the	O
voltage	O
produced	O
by	O
certain	O
flash	O
units	O
,	O
particularly	O
older	O
designs	O
.	O
</s>
<s>
Canon	O
recommends	O
that	O
the	O
maximum	O
trigger	O
voltage	O
be	O
less	O
than	O
6	O
volts	O
for	O
any	O
flash	O
or	O
accessory	O
attached	O
to	O
the	O
hot-shoe	B-Algorithm
.	O
</s>
<s>
Flash	O
compatibility	O
is	O
somewhat	O
of	O
an	O
issue	O
with	O
the	O
Powershot	B-Device
G	I-Device
series	O
.	O
</s>
<s>
In	O
particular	O
,	O
when	O
the	O
Powershot	B-Device
G	I-Device
is	O
in	O
manual	O
exposure	O
mode	O
,	O
the	O
external	O
flash	O
is	O
also	O
in	O
manual	O
mode	O
;	O
that	O
is	O
,	O
ETTL	O
flash	O
control	O
is	O
not	O
operable	O
.	O
</s>
