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Using the illuminator
o
D
LR41 battery
LED Illuminator
bracket
Other scopes
dovetail plate
Other bracket
Attach with two flat head screws.
Be sure that bracket fits perpendicular
to main telescope axis
Be sure that attachment bolt heads
does not protrude above plate
System specs subject to change without notice. Proper attachment is the responsibility of the user.
The EF-508 is a precision instrument. Protect it from
grime, dust, dampness, heat etc to insure long lasting performance
Usage warnings
Lens cell, tube OD
Lens cell φ60mm/ tube 55mm
OTA/ bracket weight OTA 520g / bracket 320g
illuminator OD
φ12mm、length 35mm(when in use)
Illuminator power
LR41 alkaline button battery x 2
Standard finder bracket
Bracket dimension width 60 x depth 36 x height 23mm(horizontal)
Attachment screws M5 machine head screws recommended,
on 28 to 41mm centers
Attachment foot hole size φ5.3mm/lhead size φ8.5mm, bevel 4.4mm
Thank you for your purchase of EF-508. Please contact us with any questions regarding use.
We also carry many additional products and look forward to hearing from you .
Thank you for choosing Kokusai Kohki with your finder purchase.
○ Never point at the sun or other very bright light sources.
Doing so can result in loss of eyesight or fire damage, etc.
When observing the sun, be sure to use AstroSolar solar filters
Rotate Retical focus ring
also available from Kokusai Kohki to insure always safe observation.
until reticle image is sharp
o
r
yo
ur eyes can
○ Do not disassemble or otherwise tamper with this finder.
Rotate lock ring to
Repair of any resulting damage will incur repair fees.
①
②
lock focus position
○ Grime and dirt on the objective or eyepiece lens should be cleaned off
when reticle is sharply
with a blower or lens cleaner. Do not disassemble lenses when cleaning.
opes & Astro
nom
Telesc
imaged.
ical
er's
○ Clean the finder by wiping it lightly with a soft cloth. Using cleaners
m
o
on
KYOTO, JAPAN H
may result in damage to the finder so refrain from using them.
KOKUSAI KOHKI
○ Be sure that all screws and lock rings etc are firmly locked
(KK Magellan)
Aligning to your telescope.
Ouno Cho 7-7, Kamikatsura, Nishikyo Ku,
in place during use.
Kyoto 615-8215 JAPAN
TEL: +81-75-394-2625
Center a star in your main telescope
FAX:+81-75-394-2612
Kokusai Kohki (KK Magellan)
and adjust the three alignment screws
Ouno Cho 7-7, Kamikatsura, Nishikyo Ku, Kyoto 615-8215 JAPAN
to center same star in the finder`s crosshair
TEL: +81-75-394-2625 FAX:+81-75-394-2612 Email: [email protected]
Email: [email protected]
Focusing the reticle.
Tampering/d
isas
se
warranty
oid
lv
wil
t
As
tr
mbl
y
e
③
Focuser
Attachment screws
Standard dovetail plate Compatible with SCT finder attachment holes. Nexstar OK as well
SYNTA telescopes
Adaptable to all model Synta telescopes.
VIXEN type finder mount Adaptable to all model Vixen and Synta telescopes.
Compatible finder brackets Can use in place of Losmandy, Vixen, TAK and Televue 50mm finders
multicoated
φ48mm
Pechan prism
Multicoated Kelner
18mm, with rubber eyeguard
8X, actual FOV 7°,
apparent FOV 56°
rotating helicoid focus
rt
ea
Focus on objects of at least 2km
distance (or, preferably, a star)
Objective lens
Effective aperture
Correct view prism
Eyepiece lens
Eye relief
magnification and FOV
under 61g
set screw
Damag
Find a distant object
in FOV,
rotate objective lens
until object comes to
focus.
Rotate lock ring
to lock focus position　Specifications
Lock front of finder using
the three lock screws on bracket,
and adjust the finder FOV to
match FOV of main scope
using the three rear screws.
Dovetail type finder bracket
Focus finder.
60mm
VIXEN type bracket
and Long leg bracket
Recticle focus
Recticle lock ring
Alignment screws & lock ring
Adjustment
5mm
twin set screw
Attachment
Lock
Setup
for SCT,
and all telescope
OTA
Makes sure dirt or grime does
not enter illuminator attachment
hole when it is removed.
The illuminator is fragile.
Protect it from shocks and
do not disassemble,which can
result in loss of function.
Disassembly can result
in repair charges
Focus adjust
Focus lock ring
50mm
22mm
battery holder
Correct view prism
Synta type
finder bracket
saddle
Baader Standard Clamp
Remove a battery sheet first
Finder OTA
Lens Cell
Standard
dovetail plate
Do
Do NOT
no loo
t
di k at
sa
ss the
em
bl sun
in .
g.
es
ult
DANGER!
Attachment
screws
Forced rotation will create a short,
incurring repair fees
Do not remove prism from finder!
Grime entry and collimations
errors can result
N
O
T
lo
D
ok
D AN
am G
at
ag ER
th
!
ca e to
e
n yo
su
re u
su r e
n.
lt ye
s
the sun. Damage to
your eyes can result
Do NOT
rotate this part
screw on
If LED does not light up
when dial is turned, please
change the batteries.Use
Do NOT point toward two LR41 batteries
On/off switch and brightness adjust
36mm
Part Names
System configuration
Warning
19.8mm
Manual for the
EF-508 Correct View finder
Use only caps screws with head width under 8mm diameter, and under 4mm length to
secure finder bracket foot to telescope. Using the screws that came with the
telescope are preferable. The screw head must not protrude above level of
flat part of the foot.