[casstony]

I shot IC4685 a couple of months ago with the IDAS D2 filter and again last night with the L-Enhance filter, both 12x7 minutes, TS115, Nikon d5600 @ ISO 400, Lights only (no calibration frames), Bortle 4/5 sky.

More nebulosity and detail shows up in the L-Enhance image while colours are more natural with the D2. Stacking all of the subs together produced something half way between the other two images.

IDAS D2: First image
L-Enhance: Second image
The last image is all frames from both filters.