mark 4 spotter question

[plunker20]

im trying to find the diamter of the objective for the eye pice for a phone mount can anyone help me?

 

[Papa Zero Three]

im trying to find the diamter of the objective for the eye pice for a phone mount can anyone help me?

The objective end is 60mm. The eyepiece where a phone adapter would attach is 5 5/16 " according to my cloth tape measure.

 

[JL]

Eyepiece is 44-43mm, depending about measuring force as rubber is flexible.