FigUrE 1-6
Focuser
retaining
ring
torque
handles
optional Camera ring
(Camera specific)
m48 camera
adapter
FigUrE 1-7
FigUrE 1-8
Focus
position
Lock
Course
Focusing
Knob
tensioning
set screw
Fine
Focus
Knob
6
Using yoUr tELEsCopE For astrophotography
Quantum telescopes come with a built-in field flattening lens design
to provide pinpoint images while imaging. To configure your Quantum
refractor for astrophotography:
1. Remove all visual accessories (eyepiece, diagonal) from
the
focuser.
2. Unthread the focuser adapter ring from the end of the
focuser (see image 1-4).
3. Thread the camera adapter onto the end of the focuser.
4. Now attach the camera ring onto the other end of
the camera adapter.
n
DSLR photography requires a model specific camera ring
for your model of camera. SkyWatcher makes a model for
Canon (S20300), Nikon (S20301) and Sony (S20302). Once
attached, your DSLR body (not included) will mount onto the
telescope just as it would attach to a camera lens.
Framing yoUr CELEstiaL objECt For astrophotography
Quantum refractors give you two ways to rotate your camera for the
purposes of framing celestial objects on the camera chip.
n
As described above, your camera can be rotated by simply
loosening the thumb screw on the focuser draw tube (see Fig
1-4) and rotating the camera body to the desired position.
n
Additionally, you can rotate the entire focuser (with camera
attached) in order to frame your object. This method will ensure
that the camera body will always have the same orientation
relative to the focuser. To rotate the focuser:
1. Loosen the focuser retaining ring by rotating the entire ring
one-quarter turn counterclockwise. Use the small torque
handles to achieve a secure grip. Note: Do not remove the
focuser retaining ring or else the focuser will become
disengaged from the telescope tube.
2. Slowly rotate the entire focuser to the desired location.
3. Re-tighten the focuser retaining ring by rotating clockwise.
FoCUsing
Dual Speed Focuser – Your Quantum refractor is equipped with a
dual speed focuser with both course and fine adjustments.
Focus Lock – On the bottom side of the focuser is a focus lock that
will disengage the focuser mechanism so that the position will not change
once the desired focus is achieved.
In addition to the focus lock, there is a 2.5 mm set screw that can be
tightened in order to increase the tension on the focuser draw tube. This
can be tightened to reduce slippage when attaching heavy accessories
to the focuser. Remember to remove all accessories before making any
adjustments to the tensioning screw.
