This is a small section of the Pelican Nebula that show cases the "neck".  I took this with my Rc14.5 at prime focus 3000 mm using three filters composed of SII, Ha, and OIII.  There was almost no OIII present after 1.5 hours of exposure.

Date:  08-17-05

Telescope: RC14.5 at prime focus (F7.9)        Camera:ST10XE               

Exposure Time: LRGB 3hrs Ha;1.5hrs SII;3hrs Ha; 1.5hrs OIII; Luminance 2bin and RGB 3bin combined

Processing: Maxim; Adobe combined, and knitted together.