North America (NGC7000) and Pelican (IC5070) Nebulae - 2025-06-21/23 and 07/02 - Hubble Palette (SHO)

This image was rendered from the same data set that was used for the North America nebula image that was uploaded on 2025-07-09. The difference was that I used synthL in the July image, but I did not use synthL in this image. After studying synthL in situations like the present narrowband image where a dedicated luinance filter is not available, I came to the conclusion that synthL does nothing boost image quality in the same way that luminance does when using a luminance filter as part of an LRGB filter set, and processing the luminance master image in a manner that emphasizes sharpness, contrast, and noise reduction. The only way to get a similiar boost in image quality is to accumulate more integration time through the three filters in the SHO or RGB filter set.

 

Here is a link to the YouTube video that convinced me that synthL does not boost image quality.

 

Equipment:

ZWO ASI6200MM-P/EFW 2" x 7 (SHO)

TeleVue NP101is (4" f/4.3)

Losmandy G11

 

Software:

Captured in NINA

Processed in PixInsight

Finished in Affinity Photo

 

Integration:

SII 13 x 600s = 4:00

Ha 17 x 600s = 5:30

OIII 16 x 600s = 5:30

Total integration: 15:00

 

 

Done