My PST Mod

[JamesF]

The 100RS looks to be about the same price as a Skywatcher Evostar 120 or ST120 OTA. How does the build quality compare with those?

James

[keithatrochdale]

They are not f10.

[JamesF]

They are not f10.

I didn't suggest that they were. I was merely enquiring about the comparative build quality given the similar pricing.

James

[Steep]

Not seen the scopes you mention but you've probably read my thoughts on the Tal build quality for astronomical use, it's a solid piece of kit and relatively easy to work with for modding where the 'poorer' quality actually helped.

[Merlin66]

Allan,

The silicon grease actually lubricates a (couple of?) small O ring(s) hidden in the tuning collar. I think these "anti-rattle" seals also double up in providing a dust seal.

[allcart]

Yes, you are right ken, and that reminds me that I need to go and get some to regrease the tuning ring.