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Etalon derby 454 manual
Etalon derby 454 manual












Its excellent colour correction also make it usuable at higher magnifications for planetary observing. The 125mm aperture gathers significant light to see all but the faintest of objects. Its light weight does not place heavy demands on a mount. Its compact dimensions make it easy to transport. The aluminium tube is fully baffled and fitted with a 2.5" Rack and Pinion focuser with 1:10 fine focusing. Its F7.8 focal ratio make it suitable for use as a solar scope when fitted with a suitable ERF and rear mounted etalon. With FPL-53 Super ED glass and a quality 2.5" focuser, the 125 FPL-53 Doublet offers excellent colour correction and is suited to to both observing and a wide range of imaging tasks. The Tecnosky 125/975 FPL-53 Doublet is a bargain in the 5" refractor class.

etalon derby 454 manual etalon derby 454 manual

Focuser is a smooth 2.5” R&P and has a 2” twist lock on it.Ĭomes with a typical Vixen dovetail bar but have Losmandy plate ready to fit and also a StellaMira carry handle. Scope is bench tested by Tecnosky and then checked again by Astrograph. Finish is a WO like pebble finish not gloss white. Tecnosky 125/975 F7.8 FPL-53 ED Doublet APO Refractorįirst impressions are it’s a very solid and well made scope.














Etalon derby 454 manual