The one that fits in the bag is the one that gets used · review
A 70 mm travel refractor sold with a backpack, a full-height tripod, two eyepieces, and — in this Amazon-exclusive version — an extra 4 mm eyepiece and a 3x Barlow.
The bottom line The best-carried 70 mm here, sold — remarkably — without publishing the second of its two defining figures.
Celestron publishes the aperture in the product name and in the bullets. The focal length appears nowhere. That is the figure that turns an eyepiece into a magnification, that sets the focal ratio and that determines the exit pupil, and this listing simply does not carry it.
A 70 mm refractor, a full-height tripod, a backpack that takes both, 20 mm and 10 mm eyepieces, and in this version a 4 mm eyepiece and a 3x Barlow as well. The mount is a manual alt-azimuth pan arm with a clutch, which is the mechanism that makes it possible to nudge rather than shove.
Whatever the focal length turns out to be, a 4 mm eyepiece with a 3x Barlow will produce a magnification far past what a 70 mm aperture can resolve. The extras look generous on the listing and they will not be what makes the telescope enjoyable.
Most travel telescopes ship with a tabletop tripod and assume a table. This one carries a full-height tripod in the same backpack, and standing at a comfortable height is worth more on a cold night than an extra eyepiece.
German, French, Italian and Spanish Amazon stores ran from 120 € to 139 € on the day of the survey.
American and British Amazon stores list it in local currency, which the euro range above sets aside.
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 17 September 2026. The live price is at the top of the page.
| Packed length | Not stated anywhere in this listing |
|---|---|
| Total carried weight | Not published by the maker. |
| Aperture | 70 mm (from the title and bullets) |
| Focal ratio | Not published by the maker. |
| Optical design | Refractor, coated glass optics per the maker |
| Mount | Manual alt-azimuth pan arm with clutch |
| Tripod type | Not published by the maker. |
| Case protection | 20 mm and 10 mm, plus a 4 mm in this version · Backpack, full-height tripod, astronomy software download |
| Setup time | Not published by the maker. |
| Amazon reference | B006MCYAH4 (same reference on 6 Amazon marketplaces) |
| EAN | 0050234010351 |
Every eyepiece decision depends on it. Without it, the 20 mm, 10 mm and 4 mm eyepieces cannot be translated into magnifications, and the exit pupil of each is unknown. The figure is printed on the tube.
It extends the range on paper. In practice a very short eyepiece on a small refractor gives a dim, fussy image that most beginners abandon after one night. The 20 mm is where this telescope performs.
70 mm aperture · 400 mm focal length
A 70/400 travel refractor with a 45° erecting diagonal, four Moon filters, a shutter release, a phone adapter and a backpack.
Best for: Daytime and Moon use in one instrument, with phone photography in mind from the start
≈ £65 / €55
70 mm aperture · 400 mm focal length
A 70/400 refractor on an alt-azimuth mount with two 1.25 in eyepieces, an erecting prism, a phone adapter and a carry bag.
Best for: A first 70 mm where the eyepiece fitting and the focal ratio are both stated plainly
≈ €60
50 mm aperture · 360 mm focal length
A 50/360 refractor for children and beginners, supplied with two eyepieces, a 1.5x erecting lens, a Moon filter and a folding tripod that packs into a bag.
Best for: A child’s first telescope that has to fit in hand luggage
≈ £17
