A focal arrangement that has a thin lens that the light passes through before traveling down the tube to the objective mirror is a _______________.
a. Cassegrain focus
b. Newtonian focus
c. Schmidt-Cassegrain focus
d. Schmidt focus
The correct answer for the question that is being presented above is this one: "Schmidt-Cassegrain focus." A focal arrangement that has a thin lens that the light passes through before traveling down the tube to the objective mirror is a Schmidt-Cassegrain focus. Here are the following choices: a. Cassegrain focus b. Newtonian focus c. Schmidt-Cassegrain focus d. Schmidt focus