Thank you dedgekko. My Pentax has a multiple exposure setting for 2-9 exposures. I set for two, shoot the moon (well, you know what I mean, LOL) at 200mm in exposure #1 so the moon is large and placed where I want it with no other subject matter but blue sky; then shoot exposure #2 of my main subject, remembering about where the moon was in my first exposure frame. It's that easy with strokes of luck added. As for the green, I am not certain which image you are thinking about; but there are no filters (my circ polarizer for the Tamron is on the UPS Truck). What you may be seeing is a bit of my
heavy hand on the saturation slider. The issue for me is knowing that where that saturation line lies that I should not cross. Thanks again for your comments.