Star Analyser Spacer
Use a spacer to increase the distance between your camera sensor and your Star Analyser grating.
If you mount the grating too far away, the whole spectrum will not fit in the camera frame and sensitivity is reduced as well. .
If you mount a grating too close to your camera, you may lose resolution.
Read more about spacers here: link.
Use our calculator to determine the best mounting distance of your Star Analyser grating: www.rspec-astro.com/calculator.
In some cases, adding one or two of our 10 mm spacers may produce spectra with a bit more resolution (although it may be more dim and noisy because it's more spread out.)
Questions? Contact our Help Desk for instant answers from experts: link.