IOptron RC20 Manual

Read below 📖 the manual in Italian for IOptron RC20 (9 pages) in the Not categorized category. This guide has been helpful for 29 people and has been rated 4.5 stars on average by 2 users

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iOptron Corporation | 1 Merrill Street | Woburn, MA 01801 www.iOptron.com |
Photron
TM
Carbon Truss Tube Ritchey-Chrétien
Telescopes
WARNING!
NEVER USE A TELESCOPE TO LOOK AT THE SUN! Looking at or near the Sun will
cause instant and irreversible damage to your eye. Children should always have
adult supervision while observing
2
iOptron® Photron™ truss tube RC telescopes feature
low thermal expansion quartz primary and secondary
mirrors with highly reective dielectric coatings
maximizing the light getting to your eyepiece or
imagine device. The RC optical design delivers coma,
spherical and chromatic aberration free results,
perfect for color and monochrome imaging. A xed
position primary mirror eliminates image shift that
occurs when focusing from other telescope designs.
With 1/12th wave or better primary mirror our RC
scopes delver images and views that are out of this
world.
Each Photron truss tube instrument comes equipped
with a dual-speed linear bearing Crayford focuser
that can facilitate our optional ASCOM compliant
electronic focus control. Three focuser extension
rings are provided for a “flex free” solid extension as -
a means to take up any unneeded back focus. Its
backbone, made up of strong, light, carbon ber truss
supports hold the optics firmly in place while keeping
weight to a minimum. It's open air design results in
rapid cooling, reducing the "wait time" before use.
Photron™ by iOptron
®
, RC truss tube telescopes are
sure to meet or exceed even the most discriminating
imager or observers expectations.
These instructions will help you set up and properly
use and care for your telescope. Please read them
over thoroughly before getting started.
Parts List
Optical tube assembly with dual-speed focuser
1 focus extension ring X 2”
2X focus extension rings 1”
1X cooling fan battery holder
Getting Started
Your telescope comes fully assembled from the
factory. The optics have been installed and
collimated, so you should not have to make any
adjustments to them. Keep the dust covers on the
telescope when it is not in use.
Mounting the Telescope
The iOptron Truss Tube has two preinstalled RC
Losmandy dovetail rails for mounting the scope
quickly and directly on an altazimuth or equatorial to
mount.
Selecting an Eyepiece
All RC scopes can accept 2” or 1.25” eyepieces, via a
2” to 1.25” adapter.
Always begin viewing with the lowest power eyepiece.
(Note: a 20 mm focal length eyepiece is lower power
than a 10 mm one.) A formula can be used to
determine the power of each eyepiece: Telescope
focal length divided by eyepiece focal length equals
magnication. For example, a RC10 has mm in 2032
focal length, the magnication with a 20mm lens is:
2032mm ÷ 20mm = 101.6X
Focusing Telescope
All iOptron RC Truss Tube telescopes come with a 3”
dual-speed Crayford focuser with a linear bearing
and a stabilizing track. It has an oversized housing
and a larger 3.3" drawtube that terminates in a 2"
accessory collar. Each focuser is equipped with both
2” drawtube
2” to 1.25” adapter
3
a tension adjustment knob for the drawtube and a
drawtube locking kn We recommend keeping the ob.
tension adjustment knob fairly tight at all times as this
will minimize drawtube exure and slippage.
Point the telescope so the front end is aimed in the
general direction of an object you wish to view.
Release so the drawtube can drawtube lock knob
be moved while turning the focus knobs. Select a
proper diagonal and eyepiece if you are doing visual
observation. Adjust the drawtube tension
adjustment knob for a proper tension during adjust
the focus knob. Look through the eyepiece while turn
the coarse focus knob to move the drawtube outward
until you see the image. Turn the ne focus knob until
the image becomes sharp. Go a little bit beyond
sharp focus until the image just starts to blur again.
Then reverse the rotation of the knob just to make
sure you‟ve hit the exact focus point. You will have to
readjust the focus when aiming at subjects of varying
distances, or after changing eyepieces.
If the focuser drawtube is fully extended and you are
still unable to achieve focus you will need to install ,
one or more extension rings (see next section).
Practice this during daytime by aiming the main
telescope tube at a land-based target at least ½ miles
away.
The focuser can be rotated to a desired angle prior to
nal focusing for astrophotographic framing by
slightly loosening the focuser attachment collar
(turning it counterclockwise), then rotating the focuser
to the desired position, then retightening the collar.
Use of Optional Accessories
Your telescope does not come with eyepieces and
diagonal so as to oer the greatest flexibility in
conguring it to your needs.
The 2” compression ring accessory holder accepts 2”
eyepieces, star diagonals, camera adapters, etc.
There are several accessories that come with the RC
OTA. One is a 1.25” compression ring adapter that
slips into the 2” holder (installed). This lets you use
optional 1.25” accessories (eyepiece, star diagonal,
camera adapter, terrestrial image erecting diagonal,
CCD/CMOS camera, etc.)
Also included with the telescope are three
threaded- extension rings: on one 2” long and two 1”
long.
These extension rings are provided to allow multiple
visual or photographic accessories to reach focus,
depending on their backfocus requirements. They are
designed for installation individually or in combination
Drawtube tension
adjustment knob
Drawtube lock knob
Attachment collar

Product Specifications

Brand: IOptron
Category: Not categorized
Model: RC20

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