A sealed tube, a lens at the front, and color to account for · review
SOLOMARK's 80900: an 80/900 refractor with fully coated green optics on an alt-azimuth gimbal with scales and a full-size aluminum tripod, with WA 20 mm and 10 mm eyepieces, an erect-image diagonal, a 5x24 finder, a phone adapter and a bag.
The 80900 is the long-focus member of the 80 mm entry class: 80 mm at 900 mm, f/11.3. Long focal length gives more magnification from the same eyepiece and keeps an achromat’s false color faint, which suits the Moon and planets.
Two WA (wide-angle) eyepieces of 20 and 10 mm, giving 45x and 90x. Both figures are correct for 900 mm.
An erect-image diagonal, a 5x24 finder with a crosshair, a phone adapter, a full-size aluminum tripod and a carrying bag. The gimbal carries altitude and azimuth scales.
A long tube on a light tripod is a long lever. Focus gently and let the view settle. For more aperture at a similar focal ratio class, see the Gskyer 90 mm.
On November 7, 2026, Amazon.com listed it at about $103 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.
Same aisle, closest price — what the same spend else shows.
| Aperture | 80 mm (3.15 in), stated |
|---|---|
| Focal length and ratio | 900 mm (35.4 in) · f/11.3, the quotient of the published figures |
| Lens design | Refractor, fully coated green optics |
| Glass type | Not published by the maker. |
| Focuser | Not published by the maker. |
| Drawtube | Not published by the maker. |
| Tube weight | Not published by the maker. |
| Supplied accessories | WA 20 mm and 10 mm eyepieces (45x and 90x) · erect-image diagonal · 5x24 finder with crosshair · phone adapter · gimbal with altitude and azimuth scales · full-size aluminum tripod · carrying bag |
| Amazon reference | B0CHR81WJ1 |
| EAN | 0727380311808 |
For the Moon and planets. The longer focal length gives more magnification from the same eyepiece and less false color. An 80/600 frames wider fields and packs smaller.
Yes: 900 / 20 = 45x and 900 / 10 = 90x, as stated.
A 6 mm eyepiece (150x) for planets, and a steady surface for the tripod.
8.4/ 10
The long-focal-length choice of the 80 mm class, with the light tripod rather than the objective as the part to watch.
This model is listed on Amazon.com, at ≈ $103 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.
Someone who wants the longest focal length in the entry class for the Moon and planets
Amazon reports what buyers took in the month before this page was last checked: at least 50.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
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.
60 mm (2.36 in) lens · 900 mm (35.4 in) focal length · f/15 · alt-azimuth mount · 2.5 kg (5.5 lb) complete
A 60/900 achromatic refractor on a light alt-azimuth mount and aluminum tripod, sold complete with three 1.25 in eyepieces, a 1.25 in diagonal, a 1.5x erecting lens, a 5x24 finder and a phone holder, 2.5 kg (5.5 lb) in all.
Best for: The Moon, double stars and the bright planets from a balcony or a yard, with nothing to align
≈ $238
70 mm (2.76 in) · 400 mm (15.7 in) focal length · f/5.7 · 20x to 100x · backpack · from age 8
The blue version of Bresser's JUNIOR 70/400: a 70/400 refractor on an azimuthal mount and aluminum tripod, with H20, H12 and H6 eyepieces, a zenith prism, a 1.5x erecting lens, a 5x24 finder, a phone holder and a backpack.
Best for: A child from about eight who will carry the telescope themselves
≈ $227
70 mm (2.8 in) fully coated achromat · panhandle alt-azimuth · 20 and 10 mm eyepieces · erect-image diagonal · StarPointer
Celestron's AstroMaster 70AZ: a fully coated 70 mm achromatic refractor on a panhandle alt-azimuth mount, with 20 mm and 10 mm eyepieces, an erect-image star diagonal and a StarPointer red-dot finder.
Best for: A first 70 mm used on landscapes as well as the Moon
≈ $180
