There was a download of RSpec 1.8 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions of the tool are 1.8, 1.7 and 1.4.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This software is an intellectual property of Field Tested Software. RSpec lies within Education Tools, more precisely Science Tools. The program's installer file is generally known as RSpec.exe. This PC program is suitable for 32-bit versions of Windows XP/7/8/10/11.
From the developer:
RSpec is a professional real-time spectroscopy program. This program enables you to rapidly go from a FITS, DSLR, or video image to a calibrated spectrum graph, in real-time. Now you can see a star or planet’s spectrum graph instantly, right at your telescope.
You may want to check out more software, such as Wintree, FSAcars or Archimedes Geo3D, which might be similar to RSpec.