8
1. Introduction
The DADOS spectrograph is an instrument that displays the
spectra from different light sources. The name DADOS means
“dice” in Spanish. It was designed to be used as either a
spectroscope or as spectrograph, mainly for astronomical and
instructional purposes. The device is very easy to use, robust,
and versatile.
Please read this entire manual carefully to achieve the
maximum use from this device.
The DADOS’ main features are:
•
Optimized for telescopes up to 14” aperture at f/10.
•
Choice of 3 slits: 25, 35 and 50
μ
m.
•
A red LED provides background illumination of the
slits for easier focusing of a self-guiding camera.
•
Default grating of 200 l/mm for low resolution,
optional 900 l/mm grating for higher resolution.
•
Micrometer for fine positioning of the central
wavelength.
•
The objective camera port has a built-in wide
focusing range and uses the standard T2 adapter
thread (M42 x 0.75).
•
Accepts most CCD and DSLR cameras (with
optional adapters). The camera interface is a T2
adapter with a standard M42 x 0.75 thread.
•
The wide 55mm focusing range is suitable for
attaching a DSLR-camera.
