6 replies to this topic

[gitane71]

Does anyone know where I could find an orange booklet about Schupmann refractors that James Daley published in the ? mid 1980's ?   

Thank you

[DLuders]

You can purchase a green-cover copy from here .  Is that what you're looking for?

Edited by DLuders, 22 August 2024 - 02:55 PM.

[gitane71]

Thank you very much !
but, no. He put out ( self published?) an orange booklet in the 80's, before the green book came out. I was hoping to find that. If I remember right, it included information about building smaller correctors and adjusting for different refractive indexes and spacings.

[DAVIDG]

Thank you very much !
but, no. He put out ( self published?) an orange booklet in the 80's, before the green book came out. I was hoping to find that. If I remember right, it included information about building smaller correctors and adjusting for different refractive indexes and spacings.

 Jim Daley and I are very good friends and I have built a  couple of Schupmanns. I have both books and  all the information in his small pink booklet is in his larger book plus much more.

 

                - Dave 

[gitane71]

Thank you, David

What are your thoughts on J. H. Rush's Schupmanns in the May, 1958 Scientific American ?

Thank you

[DAVIDG]

Thank you, David

What are your thoughts on J. H. Rush's Schupmanns in the May, 1958 Scientific American ?

Thank you

 Far better designs in Jim's book. Either the Intro Schupmann with the full size corrector or the Super Schupmann which has all spherical optics. I personally like the Intro design with the full size corrector since both the objective and the corrector can be tested and null independently of each other.

         Here is a picture of my friend Matt Considine's 6" f/12 Schupmann of the Intro Design. I figured the optics for him and Jim Daley made the OTA 

                    - Dave 

 

[gitane71]

Thank you, David
Looks like I'll be replacing the green book instead of the booklet.