Changes
A possible design option is to combine SHOC and SPRAT into one instrument. The following
describes some testing of this concept on the Liverpool Telescope (LT) version of SPRAT.
=== Wavelength Range ===
On the afternoon of 2017 12 17 the 85mm f/1.8 Nikon camera lens
meets the design requirement to cover one full octave.
=== Optical Quality === Comparisons of the extracted arcs using either lens show essentially identical opticalquality: [[File:sprat-comp-1.png|thumbnail]]
[[File:sprat-comp-2.png|thumbnail]]
