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7
PRINCIPAL FEATURES
(61
Expanded Vistas of Photography
By Employing An SP 2X High-
Performance
T.'.~onvert8r
Tamron's
SP 2X tere -converter
is
a
high-
performance converter
in
the Adaptall
system. It was specially
developed
for
exclusive use with
the
telephoto and
zoom lenses in the SP and Adaptall-2
series.
The
combina
tion
of
the
tere-
converter and your
Tamron mirror lens
greatly expands
the
conventional
range
of
photography
as follows
:
SP
500
mm
(Model 556
)
SP
2X
Tele-converter
Ad aptall
mount
a.
The
combination
of
the
tel
e-
converter and
the
lens
permits
ex-
panding the
range of
the
macro mag-
nification ratio from 1 :2.5
to
1:
1.25
Ifor
350mm F5.61 or 1.3
to
1:
1.5
Ifor
500mm FBI
which
is almost life-
size
.
b
.
The
tere-converter
and lens
combine
to make
a very compact
700mm (for
350mml or
1000mm 1500mm
l
ul tra
telephoto that
is convenient
to
carry
around
.
171
Adaptall Custom Mount System
Via Tamron's
exc
lusive
Adapta!! custom
mount system, your
new
lens can
be
used with
virtually any
popula
r
single
lens reflex
camera
.
Camera
Mount
Lens
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