Having proved the efficacy of the utterly superb Optolong L-Enhance filters on the 200mm lenses (with ASI 2600MC Pro CMOS cameras) – it was clearly time to fit the same thing to my Sky90s (with Trius M26C OSC CCDs).
2 of the Sky90s have filter wheels attached so now they will be configured with the following filters:
- UV/IR cut filter.
- Optolong L-Enhance filter.
- R75 (infrared) filter.
- SII narrowband filter.
The third (main) Sky90 will just have a 52mm UV/IR cut filter so this is the scope that will be used to get the star colour. As the 3rd Sky90 is on the same level as the guide scope, I will be able to image with this (UV/IR cut filter) Sky90 at the same time as I image with the 200mm lenses. More data is good data.