Blanconuclear
Member
Hello everyone,
In my fourth astrophotography session with my new Takahashi FSQ85 telescope, I decided to take 300s exposures of the Markarian Chain. For my previous photos of emission nebulae, I have always used narrowband filters (L-eNhance and IDAS NBZ) with my QHY 294PROC and obtained good results. However, this time I decided to remove the filter from the filter tray and leave it empty to prevent the entry of parasitic lights, as I have done before with my previous TS80Q telescope. I took 57 exposures of 300s.
The result was an exaggerated central vignette that could not be eliminated with flats. This is due to the missing filter in the filter tray, combined with the focal length of the BabyQ with the coupled reducer. The session data are:
Thank you and clear skies,
Francis.
In my fourth astrophotography session with my new Takahashi FSQ85 telescope, I decided to take 300s exposures of the Markarian Chain. For my previous photos of emission nebulae, I have always used narrowband filters (L-eNhance and IDAS NBZ) with my QHY 294PROC and obtained good results. However, this time I decided to remove the filter from the filter tray and leave it empty to prevent the entry of parasitic lights, as I have done before with my previous TS80Q telescope. I took 57 exposures of 300s.
The result was an exaggerated central vignette that could not be eliminated with flats. This is due to the missing filter in the filter tray, combined with the focal length of the BabyQ with the coupled reducer. The session data are:
- Takahashi FSQ85 EDX
- QE Reducer 0.73x
- Baader Planetarium UFC 2" empty filter holder
- QHYCCD 294PROC
- 57 x 300s lights
- 20 flats
- Darks + bias
Thank you and clear skies,
Francis.