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Note for custom
mounts
which
have
an
aperture
scale
(Noto
for
500mm Ions'
Some custom
mounts
such as
Nikon
AI
and
Minolta MD have
an aperture scale
which is visible in
cameras which
have
this fac
il
ity. When fitting the
custom
mou
n
t
simply
al
ign the
green
dot
on
the
mou
n
t
w
ith the matching green dot
on
the
lens barrel
as
described
in the
owner's manual. Please note
that as
the
SP 500mm
lens
has
a f ixed aperture of
F/8
th
is value is
transmitted to
t
he
camera
irrespective
of
the fact that the
aperture
display
on
the mount
shows
F/4.
Similarly. when
the 01 F flat fie ld
2X
teleconverter is used
the effective
aperture
value
of
F/16
is transmitted to
the
camera although
the
aperture
display
on
the mount
again shows
F/4,
and
FIB
is indicated on the body
of
the te
lecon·
verter itself. As ment
ioned
the
above
has
no
effect
in
ac
t
ual picture tak
ing
as the
co
rrect
exposure value
is always trans·
mitted to the
camera.
(4) Lens Hood
A
lens
hood is
supplied
w ith the Tam
ron
lens,
The lens hood prevents unnecessary
light f rom
stri
king the
lens and caus
if4g
unwanted glare. The lens hood
suppl
ied
is
detachable, screw-in type hood
em
·
p loying
a
very conven ien
t
system,
a.
T
o
attach
the hood, rotate it i
n
the
clockwise direction onto the thread
provided on
t
he front end of
t
he
lens.
b. When t he
lens
is not in use, detach
the hood f rom the lens,
reverse
it and
pu
t
it on
the lens
barrel.
12
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