Thread: Prime focus??
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Old 30-10-2019, 07:59 AM
Startrek (Martin)
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Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 5,990
Peter
A few questions,
Does your scope have a 2 inch focuser ?
If not , then you cannot insert a DSLR camera into your telescope
If yes, is it dual speed or single speed ? Dual speed is needed for astrophotography for fine focus
If you want to use your DSLR in your telescope for Astrophotography what objects will you be imaging ?
Just the Moon ? Moon and Planets ? Or everything Moon , Planets, Clusters , Nebula, galaxies etc...
Depending on what you want to Image you need to work out your Prime Focus FOV ( field of view)ie: whether an object will fit into the image frame
You also need to work out your “image scale” so your sampling is satisfactory for imaging
Lots of things to consider in DSLR prime focus Astrophotography
See photos of my DSLR inserted into my 8” (200mm) f5 Newtonian reflector telescope plus photos of Canon DSLR , T ring adapter and T ring unassembled
Hope the above is helpful
Martin
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