coating: the red film is decorated. The purpose of coating is to improve the imaging of the telescope (such as brightness and color). The decorative film only plays a role in surface decoration, but has no practical effect. It can not improve the imaging quality, but reduces the imaging quality.
field of view (field of view): it is the width (range) of the scene you see.
The field of view of p>56m/1m in hand-held telescope is unreasonable. Such a small field of view is only available in telescopes with a size of 15 times or more, so it is very abnormal.
Note: 56m/1m means that you can see a 56m-wide scene from a telescope at a distance of 1,m, which is not the distance from the telescope, but many laymen make a wild guess and imagine that the telescope can see 1,m.
if you have any questions, you can continue to ask me, and I will wait for your answer.