Vivitar Digital 10x25 Camera Binocular
What you refer to as st is actually (Se) for self shooting. You set it that way, push the 'S' button, and you have 10 secconds to pose for your picture.
ct means if you hold the 'S' button donw, it will take consectutive pictures, like when you want to capture a bird sitting and then taking off to fly.
The others I'm not too sure of, so I will add no more. Read More At : MAGNACAM Binocular...