Spectroscopes and Accessories

Hollow cathode lamp (HCL) thorium-argon (ThAr). This is the lamp used on eShel spectroscopes. The large number of lines in each order of these inst...

T-mount adapter ring for Canon EOS. This adapter ring allows you to mount a Canon EOS digital camera (DSLR) on a LISA, Lhires III, Alpy or UVEX spe...

5mm adapter ring to connect a C-mount lens on a CS-mount. Often used with T-mount/C-mount ring.

Adapter ring from T-mount (M42x0.75) to C-mount (25.4mm). One side has the M42x0.75mm male thread, the other side female internal thread (25.4mm). ...

This adapter will allow you to mount the eShel fiber injection system on a Schmidt-Cassegrain telescope (typically with a 0.63x focal reducer). 2" ...

High voltage power supply for spectral calibration lamps.  

This adapter enables you to attach the eShel FIGU, Alpy 600, LISA or UVEX instruments to a Schmidt-Cassegrain (Meade or Celestron) telescope (or an...

This adapter connects a T-mount camera (M42x0.75mm) to the eShel fiber-fed spectroscopy system.

This adapter connects your Lhires III to the 2″ eyepiece holder of your telescope.

This calibration module is designed for eShel and Whoppshel spectroscopes. It contains a Thorium-Argon (ThAr) lamp and a flat lamp. It can be remot...

The eShel spectro is a professional-level, multi-order (Echelle grating) fiber-fed instrument. It combines high resolution (R = 10,000) with a wide...

The LISA is the most sensitive instrument in Shelyak's product range. Thanks to its internal reducer and low resolution, it is the undisputed maste...

The Lhires III spectroscope is the king of high resolution (R = 18,000). Shelyak’s historic instrument was designed to observe details in one (or m...

The UVEX is the most versatile instrument in our product range. Achromatic by design, it can explore far into the ultraviolet and infrared – at the...

The UVEX is the most versatile instrument in the range. Achromatic by design, it can explore far into the ultraviolet and infrared – at the very li...

A problem arises when you want to observe the spectrum of a star: how do you know if you’re pointing at the right star and how do you make sure the...

The Alpy 600 is a compact, rigid, easy-to-use introductory spectrophotometer that will open the door to low-resolution spectroscopy. You can discov...

Already own an Alpy 600 and want to switch easily from one instrument to another (Alpy 600 to Alpy 200 and back)? This special version of the Alpy ...

For those who already have an Alpy 600 spectrograph, this optical core module gives you a low-cost Alpy 200. You’ll need to use the mechanical part...

The Alpy 200 and Demetra software (specially developed for the Alpy 600) will enable you to produce spectra of the highest scientific quality. The...