Page 1 of 1

Re: PST labels / PST tubes

Posted: Thu Nov 15, 2018 12:49 am
by Merlin66
Second image with the larger "PST" and brass tube is the older "original".
The "Gold" anodised tube is a recent change....
Many of the older "Gold" objective PST's with lower serial numbers were upgraded (under warranty) to the "Blue" objective and ITF in the eyepiece tube, so it's difficult to go by just the serial.
(You may also find differences in the height of the eyepiece holder....some were 5mm longer than others, making fitting cameras even more difficult.)

Re: PST labels / PST tubes

Posted: Fri Nov 16, 2018 9:26 pm
by pedro
I have two older PST with "blue" objectives

Re: PST labels / PST tubes

Posted: Fri Nov 16, 2018 9:40 pm
by Merlin66
Pedro,
The second dismantled PST looks like it has the “gold” objective??

Re: PST labels / PST tubes

Posted: Sat Nov 17, 2018 1:07 am
by pedro
Yes it does Ken, it was my first PST