[TRADED/FOUND] 1.25" Diagonal Prism

[Martin_S]

Hi , I'm after a 1.25" Diagonal Prism for a vintage refractor restoration project, it has to be a prism type not a mirror. I have tried a mirror diagonal and have found I can't get enough in focus.
Please PM me if you have one for sale.

Martin

[bojan]

Originally Posted by Martin_S

Hi , I'm after a 1.25" Diagonal Prism for a vintage refractor restoration project, it has to be a prism type not a mirror. I have tried a mirror diagonal and have found I can't get enough in focus.
Please PM me if you have one for sale.

Martin

1" diagonal prism can virtually move the focal point ~12mm further (~Thickness/3), maybe it is easier to shorten something for that amount ?

[Martin_S]

Originally Posted by bojan

1" diagonal prism can virtually move the focal point ~12mm further (~Thickness/3), maybe it is easier to shorten something for that amount ?

Good point Bojan, I lost the original diagonal that worked perfectly. This was my first telescope that my wife bought me 38 years ago. I'm hoping to restore it back to how it was when I first got it as my now grown up kids keep asking to use it when they come over.