Sky-Watcher Evostar-90 on EQ3-2 - 90mm f/10 Refractor

Sky-Watcher Evostar-90 EQ3-2: de instaprefractor op een volwassen montering

Deze uitvoering zet de 90/900 mm achromaat (f/10) op de EQ3-2, een montering die normaal bij zwaardere buizen hoort. Het resultaat: een muurvast beeld op elke vergroting en ruimte om later te groeien. De EQ3-2 is namelijk uitbreidbaar met volgmotoren en accepteert ook grotere optische buizen.

What do you see through the Evostar-90?

The moon shows sharp craters and mountain ranges with the typical high contrast. Jupiter reveals its cloud bands and four large moons, Saturn its rings. Double stars are a specialty: sharp, steady points of light. Bright star clusters like the Pleiades fit nicely in the field of view; faint nebulae require more aperture.

EQ3-2: overcapaciteit als investering

Een lichte buis op een stevige montering is het geheim van ontspannen waarnemen: trillingen dempen direct uit en het scherpstellen verstoort het beeld niet. Wie later een 102 mm of 120 mm buis wil, hoeft alleen de optiek te vervangen. Zo groeit deze set jaren mee.

This is how to get the most out of this telescope

• Almost no cool-down time A refractor lens reaches operating temperature within 10 to 15 minutes, much faster than a mirror telescope. Ideal for short sessions.
• Know what an achromat is: around very bright objects like Venus or the moon's edge, you'll see a thin purplish-blue fringe. That's characteristic of this lens design, it's visually quickly noticeable, and it's the reason why these types of apertures are affordable. For photography, it's the reason to consider an ED refractor.
• Roughly align the mount to Polaris: For visual use, north and the correct pole height are roughly sufficient; then you follow objects with one axis.
• Magnification: The 10mm eyepiece gives 90x; 6 mm planetary eyepiece (150x) brings out maximum planetary detail.
• Never look directly at the sun without protection., not even: this is doubly true for a refractor. Only with a certified solar filter on the front.

For whom yes and for whom no

Hello If you want the classic, calm refractor image: sharp stars, high contrast on the moon and planets and zero maintenance (no collimation, closed tube). Our Telescope Buying Guide for Beginners Place the types side by side.

Not voor zwakke deep-sky levert een spiegeltelescoop meer opening per euro. Is groeien geen doel, dan biedt de EQ2-uitvoering dezelfde optiek goedkoper. Deep-sky-fotografie hoort bij de smart telescopes or an ED refractor; moon photos with a smartphone adapter are actually rewarding work at these long focal lengths.

Featured accessories

These accessories add the most after purchase:

• Moon Filter 25%: The moon is bright in a refractor of this caliber. The Omegon Moon Filter 25% (1.25 inches) dims the light and increases the contrast. More explanation in our Moon filter guide.
• A 6mm planetary eyepiece: the Sky-Watcher 6mm Planetary UWA Eyepiece provides 150x magnification on this telescope for maximum planetary detail.
• Smartphone adapter: Hold your phone up to the eyepiece for surprisingly good moon photos. The Sky-Watcher SmartPhoto+ adapter comes with a special 20 mm photo eyepiece.
• Carrier bag de refractortas 100/900 past deze buis; er is ook een tas voor de EQ3-montering. Bekijk de carrier bags.

Technical specifications

Included in the box

• Sky-Watcher Evostar-90 optische buis met EQ3-2 montering en statief
• Eyepieces: 25 mm, 10 mm (1.25″)
• Zoeker: 6×30

Honest advice from observers

We sell and use the Sky-Watcher line ourselves. In our Sky-Watcher merk Guide We'll explain which series are strong and which you'd rather skip. View the full range on our Sky-Watcher merk Page. Order before 11:59 PM for fast delivery, in the Netherlands and Belgium.