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Will this fit this please.

4 posts in this topic

Will this reducer 


Antares FR2 0.5x 2" Focal Reducer

fit this scope

Primaluce AIRY APO 65f quad with built in field flattener.

Many thanks.




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It will "fit", in the sense that you can screw it on. But the question is, what do you expect to do with it? E.g. if you try photography with a relatively large sensor, you will get a lot of vignetting and the beautifully sharp stars your normally produces will not be good far from the center of the FoV.

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I'm hoping to save myself the expense of buying some 200mm L glass.

I capture with either the 600D or 60D.

So the two would not be compatible? 

Is there another FR that would be compatible?


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I have no experience of either the scope or the reducer but making a 0.5x reducer for anything other than a very small chip is a big ask. I don't know of any reducers intended for DS imaging which are as fast as this. That doesn't mean they don't exist, I just haven't come across any. The reducer would take you down to F3.2 which I would consider almost certainly beyond what can be done.

Most generic reducers are also flatteners and your quad has a flat field already, so this might be a problem. It can be done because Takahashi make reducers for their F5 quads. I think only the manufacturer of the scope can advise you reliably.


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