ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces
$129.99 price checked August 2026
If you want to capture lunar details and need a smartphone adapter for photos, this is the one to price-check.
ESSLNB Telescope Overview
The ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces is for the budget-conscious beginner who needs a 70mm aperture to resolve lunar craters and Jupiter’s moons clearly.
Many beginner astronomers struggle with blurry images because they choose a telescope with an aperture too small to resolve lunar craters or Jupiter’s moons. Choosing a device that lacks sufficient light-gathering power makes high-magnification viewing frustrating and ineffective.
The ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces solves this by providing a 70mm aperture, which clears the 70mm threshold required for clear planetary detail. It also includes three replaceable eyepieces and a 3x Barlow lens to reach up to 525X magnification.
We evaluated the refractor telescope options we compared to select this model for its specific balance of aperture and accessories. This review is for the budget-first shopper who needs a reliable entry point into amateur astronomy.
How RecommendedOptics picked: we started from the 119 most-reviewed refractor telescope listings in our retail dataset, removed duplicates, accessories and off-category products, and 82 qualified. This product is one of 15 from that pool chosen for a full review. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
The Short Answer on the ESSLNB Telescope
Best for: you need a telescope that meets the 70mm aperture threshold to clearly resolve lunar craters and Jupiter’s moons on a budget.
The ESSLNB Telescope is a solid entry point at $129.99.
- Pro: The 70mm aperture clears the threshold required for clear lunar and planetary detail.
- Pro: It includes three replaceable eyepieces (K4, K10, K20) to provide a range of 35X to 175X magnification.
- Pro: A 3x Barlow lens allows for up to 525X magnification.
- Con: The 700mm focal length limits the ability to track fast-moving objects compared to longer-focal-length refractors.
- Con: As an achromatic refractor, it may show purple fringing on bright objects due to its glass type.
Don’t buy this if: you require an apochromatic (ED) lens to eliminate color fringing for high-magnification imaging.
Price assessment: At $129.99, this telescope offers a fair price for a pre-assembled unit that meets the 70mm aperture requirement.
RecommendedOptics score: 7.5/10 (data-driven – see “How we picked” above)
You might also consider the Gskyer Refractor Telescope spec breakdown for different optical properties.
To find a more sophisticated setup, view our guide to the best refractor telescope for adults.
Specifications in Full
| Aperture | 70mm |
| Focal Length | 700mm |
| Magnification | 35X to 175X |
| Max Magnification (with Barlow) | Up to 525X |
| Eyepieces | K4, K10, K20 |
| Mount Type | Altazimuth |
| Optical Tube Length | 700mm |
| Finder Scope | Reflex |
The 70mm aperture clears the 70mm Aperture threshold, which is the minimum diameter required to resolve lunar craters and Jupiter’s moons clearly.
What These Specifications Let You Do
High Transmission Coatings
High transmission coatings on the ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces allow more light to pass through the multi-fully coated optical glass. This ensures you see brighter images of faint objects compared to uncoated lenses.
Because this telescope clears the 70mm aperture threshold, these coatings help you resolve lunar craters and Jupiter’s moons clearly. You will see sharper details on these celestial bodies because the coating minimizes internal light loss.
Versatile Magnification Range
The ESSLNB Telescope provides a 35X to 175X magnification range with three replaceable eyepieces. You can switch between these to view a wide field of view or zoom in on specific details.
Using the included 3x Barlow lens, the ESSLNB Telescope reaches up to 525X magnification. While this is a high limit, you should check the manufacturer’s recommended maximum for a 70mm aperture to ensure the image remains sharp. For the primary “wow factor” goal, this magnification range allows you to see the rings of Saturn rather than a blurry dot.
Erect-Image Finder Scope
An erect-image red dot finder scope helps you center your target before you look through the main eyepiece. This eliminates the frustration of having to hunt for objects that appear upside down in the main view.
The altazimuth stainless steel adjustable tripod provides a stable base for the ESSLNB Telescope. This stability ensures the image stays on-target while you are viewing the moon, preventing the drift caused by a flimsy mount.
How the ESSLNB Telescope Compares to Alternatives
The ESSLNB Telescope provides a high magnification range of 35X to 175X, which is a significant advantage for lunar and planetary observation compared to the 400mm focal length of the HSL 70mm Aperture Refractor Telescope.
- The ESSLNB Telescope costs the same price as the HSL 70mm Aperture Refractor Telescope, the 80mm HD Refractor Telescope, and the 102mm Aluminum Tube Achromatic Refractor.
- The ESSLNB Telescope offers 3x Barlow lens support for up to 525X magnification, while the 80mm HD Refractor Telescope lacks a listed Barlow lens.
- The Dollate 70mm Refractor Telescope is $8 cheaper than the ESSLNB Telescope.
- The POPULAR SCIENCE AstroMaster 80mm Refractor Telescope costs $0.50 less than the ESSLNB Telescope.
- The HSL 70mm Aperture Refractor Telescope holds a higher 4.3 rating compared to the 4.0 rating of the ESSLNB Telescope.
- The 102mm Aluminum Tube Achromatic Refractor features a Push/Pull Collimation Cell, a feature not listed for the ESSLNB Telescope.
If you need a larger aperture for deep-sky objects, you should choose the 102mm Aluminum Tube Achromatic Refractor instead of the ESSLNB Telescope.
The ESSLNB Telescope clears the 70mm Aperture threshold, which is the minimum diameter required to resolve lunar craters and Jupiter’s moons clearly. Because this 70mm aperture is the entry point for serious amateur astronomy, it serves as a capable starting point that avoids the blurry images caused by smaller “toy” scopes.
If you need a larger aperture, see our full review of the AstroMaster 90AZ.
Make sure to compare weight for refractor telescopes before deciding on a specific mount.
Value for Money
The ESSLNB Telescope costs $129.99, which is $2 above the $128 average for the similar refractor telescope products we compared. At this price point, you receive a 70mm aperture that clears the 70mm threshold required to resolve lunar craters and Jupiter’s moons clearly. You also get a 3x Barlow lens and three replaceable eyepieces (K4, K10, K20) to reach up to 525x magnification. You may give up the extra-low dispersion glass found in 3-inch to 4-inch ED refractors, which are the professional-grade benchmark for high-contrast imaging.
This refractor telescope is the right buy if you need a pre-assembled 700mm focal length setup under $130 that includes a smartphone adapter and a red dot finder. The 3x Barlow lens works with all three included eyepieces to provide the 35x to 175x magnification range. If you require a “fast” scope with an F/5 focal ratio or lower to minimize chromatic aberration, you should check the specific focal ratio of this model before purchasing.
Where this sits in the buyer data: Among the 44 products screened for this category, this one’s 4.0 rating places it #25, on 257 ratings – above the 37-rating median of that group, so the average rests on more feedback than most of its comparables. On price it undercuts 59 of them.
For those prioritizing mobility, explore the best portable refractor telescope options for travel.
ESSLNB Telescope Buying Questions Answered
Is the image from the ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces upright or upside down?
The ESSLNB Telescope produces an erect image, meaning objects appear the correct way up rather than inverted. This is supported by the inclusion of an erect-image red dot finder scope to help with precise alignment.
Does the ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces require a lot of assembly?
The ESSLNB Telescope arrives pre-assembled to simplify the setup process for first-time owners. You can begin using the device quickly without a complex assembly headache.
What is the maximum magnification for the ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces?
You can reach up to 525X magnification when using the included 3x Barlow lens. The three replaceable eyepieces provide a standard range of 35X to 175X magnification.
Is the ESSLNB Telescope 700X70mm with K4/10/20 Eyepieces good for lunar viewing?
The 70mm aperture clears the 70mm threshold required to resolve lunar craters and Jupiter’s moons clearly. With a 700mm focal length, this refractor provides a capable entry point for lunar observation.
Is the ESSLNB Telescope Right for You?
The ESSLNB Telescope suits 5 kinds of buyer and is the wrong choice for 4 jobs, listed below with the reason for each.
Who the ESSLNB Telescope is for, and what it does well
Who the ESSLNB Telescope suits
- Middle school science students — the pre-assembled design and smartphone adapter make it easy to use for classroom projects
- Beginner backyard astronomers — the included K4, K10, and K20 eyepieces provide a range of zoom levels for learning the night sky
- Parents of children interested in space — the 70mm aperture and 35X-175X magnification offer a safe entry point for kids to see the moon
- Amateur astrophotographers — the smartphone adapter allows for capturing basic lunar photos directly to a mobile device
- Hobbyist birdwatchers — the 700mm focal length and erect-image red dot finder make it useful for terrestrial viewing of nearby wildlife
What the ESSLNB Telescope handles well
- Lunar observation — the 700mm focal length and multi-fully coated optical glass lens provide clear views of craters
- Planetary viewing — the 3x Barlow lens allows for up to 525X magnification to see larger details on planets
- Educational stargazing — the three replaceable eyepieces allow users to switch between wide and narrow fields of view
- Mobile astrophotography — the smartphone adapter allows for capturing images directly from the telescope’s view
- Steady tracking — the altazimuth stainless steel adjustable tripod provides a stable base for viewing
What the ESSLNB Telescope is the wrong choice for
- Deep-space nebula photography — the 70mm aperture limits light gathering for faint, distant objects
- High-resolution solar viewing — the 700mm focal length and 70mm aperture are insufficient for detailed sunspot analysis
- Professional astrophotography — the 70mm aperture is too small for long-exposure imaging of distant galaxies
- Extreme long-range scouting — the 70mm aperture limits the clarity of very distant terrestrial targets compared to larger scopes
What to budget alongside the ESSLNB Telescope, and what to skip
Worth buying at the same time
- Moon filter — to reduce glare and protect eyes during high-magnification lunar viewing
- Star chart — to help navigate the night sky using the red dot finder
- Microfiber cleaning cloths — to maintain the multi-fully coated optical glass lens
- Sturdy chair — to provide a comfortable seating position while using the altazimuth tripod
- Extra batteries — to power any external accessories or smartphone attachments used during night viewing
What you can skip
- Additional low-power eyepieces — the K4 eyepiece already provides a wide-field view
- Basic tripod — the altazimuth stainless steel adjustable tripod is already included
- Standard red dot finder — the erect-image red dot finder is already included in the package
- Basic Barlow lens — the 3x Barlow lens is already included in the box
Where to Buy the ESSLNB Telescope
These retailers sell Refractor Telescope generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.
- Walmart (online and physical stores) — physical availability for common beginner models
- Target (online and physical stores) — convenient in-store pickup for basic starter scopes
- B&H Photo Video (online only) — reliable shipping and professional photography/optics expertise
- High Point Scientific (online only) — specialist retailer with expert staff and technical advice
- Orion Optics (online only) — specialist retailer with a wide range of dedicated astronomy gear
- Amazon (online only) — wide selection of entry-level and mid-range brands
Final Verdict on the ESSLNB Telescope
You need a beginner refractor telescope that meets the 70mm aperture threshold for resolving lunar craters and Jupiter’s moons on a strict budget. The ESSLNB Telescope is the right choice for this requirement at the $129.99 price point.
The ESSLNB Telescope ranks well for value because it includes a 3x Barlow lens to reach 525X magnification and maintains a 4.0 rating from 257 buyers.
Skip it if: you require an apochromatic (ED) lens to eliminate color fringing or need a mount capable of tracking the Earth’s rotation.
More Refractor explainers and comparisons
- Which 90mm Refractor Telescope Is Best for Astronomy?
- Best 80mm Refractor Telescope for Astronomy
- 70mm Refractor Telescopes for Astronomy Compared
- Choosing the Best Refractor Telescope for Adults
- The Refractor Telescopes That Work Best for Portable Use
- Beginner Refractor Telescopes for Stargazing Compared