tried PST with Lunt
similar to Quark PST mod
not as easy or as productive
but there was some effect
focus distance issues
needed 1.5 barlow
quark - pst better
but i tried!
Lunt with PST mod
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Re: Lunt with PST mod
Always worth trying!
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Re: Lunt with PST mod
I'd would suggest the following configuration for such a DS mod.
Lunt -> 2x Barlow -> BF1200 -> Televue PM2.5x telecentric --> PST (without it's optics) --> eyepiece or camera with Focal reducer 0,7x for IMX174 chip.
May be Meade 3x Telecentric instead of TV PM2.5x but then reducer must be 0.5x-0.6x.
It is possible to change the F/D (and the scale) by using different space in 2x barlow before telecentric.
Must work. I have done this many times with excellent results.
Also, a b/w camera is a must. Any color camera will destroy the results.
Valery
Lunt -> 2x Barlow -> BF1200 -> Televue PM2.5x telecentric --> PST (without it's optics) --> eyepiece or camera with Focal reducer 0,7x for IMX174 chip.
May be Meade 3x Telecentric instead of TV PM2.5x but then reducer must be 0.5x-0.6x.
It is possible to change the F/D (and the scale) by using different space in 2x barlow before telecentric.
Must work. I have done this many times with excellent results.
Also, a b/w camera is a must. Any color camera will destroy the results.
Valery
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Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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