A camera, a lens and one motor against the rotation · review
SLIK ECH-630 (618-803) review
SLIK's ECH-630: a compact motorized star tracker with sidereal, lunar, solar and time-lapse speeds, an LCD menu and up to 20 hours on four AA batteries, about the size of a 24-70 mm lens, with an optional SMH-250 polar head.
SLIK sells the ECH-630 to photographers who hike in. It weighs 22.4 oz and takes about the space of a 24-70 mm lens, against astro heads that can weigh 11 lb, SLIK says.
Four speeds
Sidereal for the stars, lunar, solar, and a time-lapse speed, chosen from an LCD menu.
Twenty hours on AA
Up to 20 hours on four AA batteries, which can be replaced anywhere.
What is not here
No payload figure, and polar alignment relies on the optional SMH-250 micro-adjustment head. The title says 23 oz; the bullets and description say 22.4 oz.
Price and availability
On November 7, 2026, Amazon.com listed it at about $440 from a third-party seller.
Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.
Prices quoted in this text were read on November 7, 2026. The live price is at the top of the page.
Its two nearest scopes on price
Same aisle, closest price — what the same spend else shows.
Sidereal (star), lunar, solar and time-lapse, stated
Polar alignment method
Optional SMH-250 micro-adjustment head
Power source
4 AA batteries, up to 20 hours
Weight
22.4 oz (635 g) in the bullets and description · 23 oz in the title · about the size of a 24-70 mm lens
Head fitting
Not published by the maker.
Amazon reference
B07BFFT7JL
EAN
0049368706025
What observers ask about this one
Why AA batteries?
They can be bought anywhere and swapped in the field, which matters on multi-day trips with no charging.
What are the four speeds for?
Sidereal for stars and the Milky Way, lunar and solar for the Moon and Sun (with a proper solar filter), and a slower time-lapse rate for motion sequences.
How is it polar-aligned?
SLIK offers the SMH-250 micro-adjustment head as an option for easier polar alignment.
The price on Amazon.com
This model is listed on Amazon.com, at ≈ $440 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 7, 2026.
This one and its buyer, among astronomy instruments
Backcountry night photography where batteries must be replaceable and the speed switchable
Eyepieces and parts stated to fit
Listed because the eyepiece or part names this scope.
Specifications: the manufacturer sheet for telescopes and observing optics and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
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