Fully coated on all surfaces high quality air spaced doublet in excellant condition.
Has given 5 years service in my backyard worsening light polution forces sale.
Gives superb sharp high contrast planetary and deepsky views with minimal chromatic aberration. Jupiter Mars Saturn are superb through this lens.
If needed includes a machined black collar for cell that fits over 6 inch tubing and matches origional push pull ring.
This lens sells for 800US new and there is a 6-8 month waiting time.
$550(or NZ dollar equivilant) includes shipping to the US.
I reviewed the completed scope on cloudynights a few years back.