Evostar 150ED DX / Deluxe — 150/1200 ED doublet The Evostar 150ED DX is the Deluxe version of the original 150 mm f/8 ED doublet. Its two-element air-spaced objective has a 1200 mm focal length and MHTC coatings for visual and photographic astronomy.
Manufacturer model: Evostar 150ED DX / Deluxe — 150/1200 ED doublet · Specifications checked against manufacturer data on 2026-11-04
The Evostar 150ED DX is the Deluxe version of the original 150 mm f/8 ED doublet. Its two-element air-spaced objective has a 1200 mm focal length and MHTC coatings for visual and photographic astronomy.
The DX package adds a 3.4-inch Helinear rack-and-pinion focuser with dual-speed adjustment, together with tube rings and a D-style dovetail. This is the larger-focuser configuration and must not be confused with the original standard ED or newer EDX.
The Black Diamond aluminium tube is internally baffled to control stray light. A foam-lined aluminium case is supplied. A matching corrector is optional; camera spacing must follow that corrector’s instructions rather than the specifications of the newer EDX model.
Sky-Watcher manufacturer documentation
Sky-Watcher original catalogue
US manufacturer DX page and branded Australia catalogue consistently identify 3.4-inch rack-and-pinion focuser. Japanese page conflicts between prose (3-inch rack-and-pinion) and table (2-inch Crayford); those mechanical entries and regional masses are not combined.
| Stray light control | Internal baffling |
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Data sheet
Evostar 150ED DX / Deluxe — 150/1200 ED doublet The Evostar 150ED DX is the Deluxe version of the original 150 mm f/8 ED doublet. Its two-element air-spaced objective has a 1200 mm focal length and MHTC coatings for visual and photographic astronomy.
Manufacturer model: Evostar 150ED DX / Deluxe — 150/1200 ED doublet · Specifications checked against manufacturer data on 2026-11-04
