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Old 16-11-2019, 10:59 AM
skytry (Peter)
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skywatcher imaging

hi All,
help is required, please,

I have refractor scopes, F/5 - 6,
do I require a reducer flattener or just a flattener
for imaging with DSLR camera's,

both refractors are doublets,

what is recommended, if I require the above,

rgds,
Peter,

Last edited by skytry; 16-11-2019 at 04:59 PM.
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  #2  
Old 16-11-2019, 11:35 AM
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Atmos (Colin)
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Do you have a Sky Watcher Esprit?
They should come with a flattener.
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Old 16-11-2019, 11:53 AM
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Nikolas (Nik)
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If it's the ED range which is the doublets then a field flattener is required, otherwise the Esprits as Colin said come with a flattener buit in.
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Old 16-11-2019, 12:45 PM
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Atmos (Colin)
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Quote:
Originally Posted by Nikolas View Post
If it's the ED range which is the doublets then a field flattener is required, otherwise the Esprits as Colin said come with a flattener buit in.
Sorry if it came across that way, the flatteners aren't built in to the Esprit like some of the flat field Astrographs. The Esprit is a standard triplet but does come with a 2-3 element flattener that can be screwed into the focuser.
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Old 16-11-2019, 06:53 PM
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Nikolas (Nik)
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Yep I misunderstood the blurb as well This is what it says about the espirit "The included 2-element field corrector guarantees a flat field across the entire imaging plane."
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