<s>
All	O
these	O
models	O
have	O
the	O
Konica	B-Algorithm
AR	I-Algorithm
bayonet	I-Algorithm
.	O
</s>
<s>
The	O
Konica	O
AR	O
camera	O
lens	B-Algorithm
mount	I-Algorithm
was	O
introduced	O
in	O
1965	O
with	O
the	O
Konica	B-Algorithm
Autoreflex	I-Algorithm
(	O
Autorex	O
on	O
the	O
Japanese	O
market	O
)	O
,	O
along	O
with	O
a	O
range	O
of	O
lenses	O
.	O
</s>
<s>
Lenses	O
,	O
Konica	O
named	O
them	O
Hexanon	O
,	O
with	O
focal	O
lengths	O
from	O
21mm	O
to	O
1000mm	O
and	O
a	O
47-100mm	O
f3.5	O
Hexanon	O
AR-H	O
were	O
offered	O
;	O
additionally	O
a	O
bellows	B-Algorithm
and	O
an	O
angle	O
viewfinder	O
.	O
</s>
<s>
The	O
Autoreflex	O
T3	O
is	O
an	O
improved	O
Autoreflex	O
T2	O
,	O
It	O
moves	O
the	O
depth-of-field	O
(	O
DOF	O
)	O
preview	O
(	O
aperture-stop-down	O
)	O
function	O
to	O
the	O
self-timer	O
lever	O
(	O
push	O
lever	O
towards	O
lens	O
for	O
stop-down	O
,	O
push	O
button	O
on	O
lever-hub	O
and	O
turn	O
lever	O
counter-clockwise	O
to	O
set	O
the	O
self-timer	O
;	O
the	O
T2	O
DOF	O
preview	O
function	O
was	O
activated	O
by	O
a	O
single	O
function	O
button	O
located	O
on	O
the	O
lower	O
lens	B-Algorithm
mount	I-Algorithm
,	O
activated	O
by	O
the	O
photographer	O
's	O
right	O
hand	O
)	O
,	O
and	O
adds	O
a	O
Multiple	O
Exposure	O
(	O
M.E.	O
)	O
</s>
<s>
The	O
final	O
version	O
of	O
focus	O
screen	O
became	O
the	O
standard	O
on	O
all	O
subsequent	O
Konica	O
models	O
(	O
TC	O
,	O
T4	O
,	O
FP-1	B-Algorithm
,	O
FT-1	B-Algorithm
,	O
etc	O
.	O
)	O
</s>
<s>
The	O
T4	O
is	O
the	O
only	O
Autoreflex	O
,	O
that	O
can	O
be	O
used	O
with	O
a	O
Motor	B-Algorithm
drive	I-Algorithm
(	O
2	O
frames	O
per	O
second	O
,	O
Winder	O
AR	O
)	O
.	O
</s>
