Spacecraft used is "Friendship 7". Hope it helps.
It should be at about 65J. Not sure, hope I helped.
I believe it is speed.
Hope this helps!
A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
Six centimeters equal to about two inches
