Kowa SIX Version II - Kowa Six Auxiliary Lenses; Telephotography with 2 X Tele-Converter; Close-ups with Kowa-Up Lenses

AUXILIARY
LENSES
Kowa/
SK
2%
TELE
CONVERTER
TELEPHOTOGRAPHY
WITH
2X
TELE-CONVERTER
2X
tele-converter
is
a
rear
conversion
lens
which
effectively
doubles
the
focal
length
of
the
master
lens.
It
was
originally
designed
for
the
500mm
super
telephoto
lens,
but
can
be
'used
with
150mm,
200mm
and
250mm
telephoto
lenses
os
well,
doubling
their
effective
focal
length
to
300mm,
400mm
and
500mm
respectively.
Diaphragm
and
shutter
coupling
of
the
master
lens
remains
when
using
with
the
conver-
sion lens. Exposure factor is 4.
*
Detailed
description
and
instructions
are
provided
in
manual
"2X
TELE-CONVERTER
INSTRUCTIONS"
supplied
with
the
converter.
CLOSE-UPS
WITH
KOW
A-UP
LENSES
KOW
A-UPs
are
auxiliary
lenses
for
close-up
photography.
They
are
very
convenient
for
field
work.
They
allow
focusing
at
closer
distance.
than
the
minimum
distance
of
master
lens.
No.l
(its
focal
length
is
0.5m)
is
the
most
powerful,
No.2
(Im)
comes
next
and
No.3
(2m)
is
the
weakest
of
the
three.
No
modification
of
exposure
is
necessary
(exposure factor is І.)
*
Detailed
description
and
instructions
are
provided
in
manual
"KOWA-UP
INSTRUC-
TIONS”
supplied
with
the
close-up.
lens.
Magnification
at
nearest
distance
|
|
55mm
—
85m
lim
150m
200mm
250m
|
lens
only
|
0.19
0.14
0.20 0.13
0.11
0.
08
with
No.3|
0.22
0.
19
0.
26
0.
21
0.
22
0.
12
(with No.2} 0.24 0.23 0.31 0.29 0.32 0.34
(with
No.1
|
0.30
0.
32
0.
44
0.
46
0.55
0.
64
|
21