morls
10-01-2013, 07:38 AM
***Sale Pending***
Hi,
Due to time and work commitments I have to defer my first ATM project, and so I have a 300mm GSO f5 mirror for sale. This mirror has been re-coated by Isaac Qin and tested by Mark Suchting. The results were:
Spherical Aberration judged to be better than 1/8 wave P-V at 550 nm;
Some primary astigmatism at 1/8 wave, probably not visible except for night of exceptional seeing;
Some moderate surface rippling typical of mass-produced optics;
Results indicate a mirror in the top of the range that could be expected for a mass produced mirror.
It's never been out of the box except for re-coating and testing. It's in the box, protected. I have a written report from Mark Suchting that I will pack with the mirror.
I'm not sure about shipping, so at this stage pickup in Randwick NSW is the best option.
PRICE: $500 COD or Direct Deposit.
Stephen
Hi,
Due to time and work commitments I have to defer my first ATM project, and so I have a 300mm GSO f5 mirror for sale. This mirror has been re-coated by Isaac Qin and tested by Mark Suchting. The results were:
Spherical Aberration judged to be better than 1/8 wave P-V at 550 nm;
Some primary astigmatism at 1/8 wave, probably not visible except for night of exceptional seeing;
Some moderate surface rippling typical of mass-produced optics;
Results indicate a mirror in the top of the range that could be expected for a mass produced mirror.
It's never been out of the box except for re-coating and testing. It's in the box, protected. I have a written report from Mark Suchting that I will pack with the mirror.
I'm not sure about shipping, so at this stage pickup in Randwick NSW is the best option.
PRICE: $500 COD or Direct Deposit.
Stephen