Quiz On 70/400 AR Telescope incl. Backpack

This is a timed quiz. You will be given 15 seconds per question. Are you ready?

15
0%

Which of these can you view with a 70/400 telescope?

Correct! Wrong!

Why is the backpack useful for this telescope?

Correct! Wrong!

What does the Barlow lens do?

Correct! Wrong!

What is the diameter (aperture) of this telescope’s main lens?

Correct! Wrong!

What is the focal length of the telescope?

Correct! Wrong!

What is the focal ratio (f-number) of this telescope?

Correct! Wrong!

How do you calculate the magnification using an eyepiece?

Correct! Wrong!

Which optical design does this telescope use?

Correct! Wrong!

Quiz On 70/400 AR Telescope incl. Backpack
You Failed!
You weren't even close... Carry on!
Close enough!
You were even close... Carry on!
You are Genius!
You nailed it!

Share your Results:

Just tell us who you are to view your results!

The form collects name and email so that we can add you to our newsletter list. Check out our privacy policy to know how we protect and manage your submitted data.