Their is no comparising between the FS-128 and the TSA-120 one guy had a Takahashi FS-128 and a the other Takahashi FS-102
and we were looking at the moon at our Astronomy festival many Apos there the Takahashi FS-102 was the best doublet
iv ever looked with and beat all the doublets at the festival including two SkyWatcher 120mm Equinox doublets and one
Sky-Watcher EVOSTAR-120 and APM FK-61 ED 152
Everybody agreed that the APM FPL-53 140mm was a match for the Takahashi FS-128 the FS-102 at the same power the lenses
were the same but when put against the Sky-Watcher 120mm Esprit this is where you could see the FS-128 lost it Magical cult like
status power you could see tiny bit of false colour where the 120mm Esprit had none at all then it was the turn of the Takahashi FS-102
against a TS-107 mm f/6.5 FPL53 Triplet the look on the FS-102 owners face victim of the fluorite hype both FS owners bought their
FS Refractors from the US as they are very rare Apos
This was just over a year ago ill admit i use to buy into the fluorite hype it was this star party that convinced me to finally get a TSA-120
watching it beat every other triplet Apo and crush the FS-128 only the LZOS 123mm could match the TSA-120 with the star tests