Who supplies good quality 4-inch achromats in long focal lengths (12 or 15 or so). Looking for something like this from d&g optical, but they only carry 5-inch and up. Needs to be a high quality 4 inch lens with cell. If you can point me in the right direction, it would be greatly appreciated.
achromat lens
Started by Dasuhu, 09/22/2002 04:00AM
Posted 09/22/2002 04:00AM
Opening Post
Posted 09/22/2002 07:59AM
#1
Hi Dan,
I have a 4" f/12 scope that I made from a lens set I got from Sky-Objectives. I am very pleased with the quality and color correction of this lens set and would not hesitate to reccommend them. The only issue is that I built my own lens cell. I believe that Sky-objectives does plan to have lens cells available soon. I also believe that there are some domestic sources for a lens cell as well. There is a web site at www.sky-objectives.com so take a look if you are interested. Let me know if I can answer any ?'s for you.
Jack
I have a 4" f/12 scope that I made from a lens set I got from Sky-Objectives. I am very pleased with the quality and color correction of this lens set and would not hesitate to reccommend them. The only issue is that I built my own lens cell. I believe that Sky-objectives does plan to have lens cells available soon. I also believe that there are some domestic sources for a lens cell as well. There is a web site at www.sky-objectives.com so take a look if you are interested. Let me know if I can answer any ?'s for you.
Jack
