No idea what "fastness or short circuiting" means... sorry.
Good discussion everyone (I am using Rod's comments for elaboration for all); I would like to use this fastness aspect to get a consensus here.
So most of you DO understand what I meant by short circuiting? Simple... regular SCT has three folds of light path, in HyperStar last one gets clipped. Consensus I would like to have is that HyperStar is condensing light of the last fold (in other words converging or bringing to focus) onto the sensor hence giving the appearance of fastness with some loss of resolution/image detail for a given sensor. Do you all agree? If yes, then we are all on the same page with this (whether it is good or bad is a different story).
Now with that said, hypothetically speaking, why not apply this last 1/3 convergence principle to all optics, refractors and all [e.g., imagine clipping last 1/3 of the light cone of a refractor with a "hypothetical" HyperStar for a refractor]; that would be BAD or considered counter productive, correct? If you can understand what I mean then I think I have made my point.
To sum up, then what heck the rest of the astrophotography community is doing with slower, non-HyperStar systems, exposing for long hours... they are getting more resolution than HyperStar would get. That's all; if that's sophistication then one would be justified in calling HyperStar with the 'C' letter word, especially in its current incarnation with SCTs. Regards
Elaboration of last fold condensing/converging by HyperStar:
•Image circle C11: 42mm
•Image circle C11 + HyperStar: 27mm