BAADER DADOS Diffraction Slit Spectrograph

• Two different reflection gratings and a specially designed optical system deliver a high light efficiency
• Micrometer gauge for precise adjusting of the grating
• In contrast to spectrographs without a slit, even large objects (nebulae, planets, comets) can be analyzed – just like in a professional observatory
• The spectral resolution (lambda/delta lambda ~ 500) makes a precise spectral classification of stars possible
• The complete visible and near infrared spectral range (350nm – 950nm) can be covered with a SBIG ST-7
• The slit is directly visible with an eyepiece or webcam, which makes it easy to center and guide a star
• The slit spectrograph can even be used at fast optics up to f/6.3, although a slight vignetting is visible at optics faster than ca. f/10
• Fits at standard 2" focusers
• Compact, can even be used if there is not much space
• The spectrum of brighter objects is directly visible in an eyepiece
• There are three slits side by side (25/35/50µm)
• The slits can be illuminated from the back with a red LED for easier focusing of a camera on the slit
• The spectra can be taken with web-, digital or CCD-cameras
• All cameras and eyepieces can be attached with our T-2® adapters