Full Focus. USCAMEL® High Powered Waterproof Binoculars ED Lens Professional Telescope. Feature: Central Focus roller: Users only need to turn the telescope in the middle circular wheel, you can change the focal length Right eyepiece diopter a
This charts show the effect of aperture on the size of the starbursts. As you can see, the smaller the aperture, the more emphasized the starburst. The same concepts apply during the daytime as they do during the night time.