The Telescope Authority
Since 1947

View Shopping Cart

Your Cart is Empty

Shelyak 300 gr/ mm Grating Module for Lhires III Spectrograph

SKU : SL-SE0008

- Read
Add to Wishlist

52D158B8-B55E-4DF3-8064-D4A13DFFDDC4 Request stock alerts and we'll let you know when the item is back in stock

Got questions? Click for live chat

Product Details

  • Shelyak 300 gr/ mm Grating Module for Lhires III

    This Shelyak 300 gr/ mm Grating Module works with all versions of the Lhires III Spectrograph and has an R ~ 1000 power of resolution. L Hires III allows for straightforward grating removal for switching between different grating modules. Shelyak Product Number: SE0008 Please Note: Stated pricing of this accessory requires concurrent purchase of one of Shelyak's larger systems. Please contact OPT if you are interested in stand-alone pricing.

Product Reviews

Customer Reviews
5.0 Based on 1 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • spectra
  • Lhires III
  • grating
  • data
  • frames
  • object
  • number
  • something
United States United States

"Reducer" for Lhires III spectrometer

The grating that comes with the Lhires III spectrometer is quite strong. If I want to collect data for a dim object, the number of frames becomes so numerous (~20 frames @ 15nm per frame) that the time for each frame prohibits collecting the entire spectra in one setting. Therefore a weaker grating is required to enable one frame to capture the entire spectra. If something unusual is found in the single frame, I can return to the original grating and "zoom-in" to investigate.