Quote:
Originally Posted by bandersen
Does this match your set?
Riders vol 13, chassis
First time I have ever seen a focus control on an electrostatic focus set. Usually, it's a jumper with 2 or 3 options.
I've been curious if it gives a smooth focus change. If so, why didn't more sets use a variable control?

|
we’ll the tube line up looks the same but it shows the magnetic focus tube which would be different if it’s got the 21yp4 then it’s probably the right one.