I was going through some old data and came across one of my earliest captures with an aperture mask—a shot of NGC 2659, NGC 2660, NGC 2395, and NGC 2670. I didn't appreciate until yesterday just how colorful the entire scene is:
Preview (click for full size @ 67% scale)
Capture details / Full size in the 'Bin
This one's worth ogling at 100% scale in the 'Bin…how many carbon stars can you spot?
BQ