<s>
The	O
Contax	O
G	O
camera	O
line	O
consists	O
of	O
two	O
cameras	O
,	O
the	O
G1	O
and	O
G2	O
,	O
interchangeable-lens	O
cameras	O
sold	O
by	O
Kyocera	O
under	O
the	O
Contax	O
brand	O
in	O
competition	O
with	O
the	O
Leica	B-Algorithm
M7	I-Algorithm
,	O
Cosina	B-Algorithm
Voigtländer	I-Algorithm
Bessa-R	O
,	O
and	O
Konica	B-Algorithm
Hexar	I-Algorithm
RF	I-Algorithm
.	O
</s>
<s>
The	O
two	O
G-series	O
cameras	O
have	O
titanium-clad	O
bodies	O
and	O
use	O
the	O
Contax	B-Algorithm
G-mount	I-Algorithm
,	O
an	O
electronic	O
autofocus	O
mount	O
.	O
</s>
<s>
The	O
Contax	B-Algorithm
G2	I-Algorithm
listed	O
for	O
with	O
the	O
45mm	O
Planar	O
lens	O
in	O
1999	O
.	O
</s>
<s>
Critics	O
were	O
quick	O
to	O
accuse	O
the	O
G1	O
of	O
not	O
being	O
a	O
"	O
true	O
"	O
(	O
mechanical	O
)	O
rangefinder	B-Algorithm
,	O
since	O
it	O
used	O
autofocus	O
and	O
electronically	O
linked	O
mechanisms	O
.	O
</s>
<s>
However	O
,	O
the	O
AF	O
mechanism	O
in	O
the	O
G-series	O
does	O
indeed	O
use	O
a	O
twin-window	O
system	O
much	O
like	O
that	O
of	O
the	O
older	O
mechanical	O
rangefinders	B-Algorithm
only	O
in	O
electronic	O
form	O
.	O
</s>
<s>
The	O
viewfinder	O
covers	O
the	O
field	O
of	O
view	O
for	O
lenses	O
of	O
focal	B-Algorithm
lengths	I-Algorithm
between	O
28	O
and	O
90mm	O
through	O
an	O
optical	O
zoom	O
,	O
and	O
automatically	O
compensates	O
for	O
parallax	O
error	O
and	O
field	O
when	O
focusing	O
closer	O
.	O
</s>
<s>
The	O
manual	O
focus	O
wheel	O
was	O
moved	O
from	O
the	O
top	O
deck	O
to	O
the	O
front	O
,	O
to	O
about	O
the	O
same	O
position	O
as	O
where	O
the	O
focusing	O
wheel	O
was	O
located	O
on	O
classic	O
Dresden	O
and	O
Stuttgart	O
Contax	O
rangefinders	B-Algorithm
.	O
</s>
<s>
The	O
35	O
–	O
70mm	O
3.5	O
–	O
5.6	O
Vario-Sonnar	O
,	O
the	O
first	O
zoom	O
lens	O
for	O
a	O
rangefinder	B-Algorithm
camera	I-Algorithm
,	O
was	O
the	O
last	O
lens	O
to	O
be	O
released	O
,	O
in	O
2000	O
.	O
</s>
<s>
Unlike	O
most	O
bayonet-mount	O
lenses	O
,	O
the	O
Contax	O
G	O
mount	O
uses	O
a	O
breech-lock	O
mechanism	O
similar	O
to	O
the	O
manual-focus	O
Canon	B-Algorithm
FD	I-Algorithm
and	O
FL	B-Algorithm
mount	O
.	O
</s>
<s>
Adapters	O
are	O
available	O
for	O
the	O
Sony	B-Algorithm
E-mount	I-Algorithm
and	O
Micro	B-Operating_System
Four	I-Operating_System
Thirds	I-Operating_System
digital	O
camera	O
.	O
</s>
<s>
Because	O
the	O
viewfinder	O
was	O
limited	O
to	O
the	O
angle	O
of	O
view	O
corresponding	O
to	O
the	O
28mm	O
Biogon	O
,	O
the	O
16mm	O
Hologon	O
and	O
21mm	O
Biogon	O
lenses	O
were	O
each	O
bundled	O
with	O
a	O
separate	O
accessory	O
viewfinder	O
that	O
mounted	O
in	O
the	O
hotshoe	B-Algorithm
.	O
</s>
<s>
Contax	O
G	O
lenses	O
Name	O
Focal	B-Algorithm
length	I-Algorithm
Aperture	O
Angle	O
of	O
view	O
Catalog	O
Rel	O
.	O
</s>
<s>
GA-1	O
-	O
Allows	O
the	O
use	O
of	O
certain	O
Contax/Yashica	O
mount	O
lenses	O
(	O
focal	B-Algorithm
length	I-Algorithm
of	O
adapted	O
lens	O
is	O
selectable	O
on	O
adapter	O
:	O
28	O
,	O
35	O
,	O
50	O
,	O
60	O
,	O
or	O
85mm	O
)	O
.	O
</s>
<s>
Rangefinder	B-Algorithm
on	O
body	O
used	O
to	O
determine	O
distance	O
,	O
then	O
lens	O
is	O
focused	O
manually	O
.	O
</s>
