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Old 12-11-2020, 10:22 AM
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Outcast (Carlton)
Always gonna be a NOOB...

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Convert camera lens to guidescope

Interesting idea here:

https://www.skyatnightmagazine.com/a...d-camera-lens/
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  #2  
Old 12-11-2020, 10:54 AM
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Merlin66 (Ken)
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I was using the Zuiko 135mm telelens as an eFinder for many years...only replaced recently with a 60/240 finder.
I made the "adaptor" from a Oly spacer and epoxy glued a 1.25" adaptor into it.
(see Astronomical spectroscopy for amateurs, fig 12.13)
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Old 15-11-2020, 11:03 AM
AdamJL
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That's brilliant!
Can you also use a DLSR for the guide camera? I have several spares floating about. It'd be amazing to use an old camera plus my 100mm macro as a guide system
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Old 15-11-2020, 11:22 AM
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Merlin66 (Ken)
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Adam,
I donít think a DSLR is capable of acting as a guide camera.
A smaller CMOS with a good QE and fast frame rate is usually used with guide software like PHD.
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Old 15-11-2020, 12:41 PM
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Max Vondel (Peter)
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Nice idea, its a pity most camera lenses are so heavy
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Old 15-11-2020, 09:18 PM
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Sunfish (Ray)
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Like Ken I used an old 135mm t2 lense as a guide scope while I was trying to get my OAG sorted on a new scope. It worked fine. Some of the old lenses have bad coma which really shows up on a small guide camera but phd still works.
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