Sky-Watcher Mercury-707 Refractor Telescope - Sky-watcher

The Sky-Watcher Mercury-707 is an entry-level achromatic refractor telescope designed for those be...

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Wex Photo VideoSky-Watcher Mercury 70/700 AZ2 Refractor Telescope - 70mm - Black
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Product Information

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The Sky-Watcher Mercury-707 is an ideal entry-level refractor telescope for astronomy beginners and hobbyists seeking a reliable, user-friendly instrument for observing the Moon, planets, and bright deep-sky objects. Featuring a 70mm aperture and 700mm focal length, it provides crisp, high-contrast views for celestial exploration; however, as a manual alt-azimuth system, it requires patience and manual adjustment to track fast-moving objects across the sky.

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BrandSky-Watcher

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FAQs

Can I use this telescope for terrestrial viewing?

Yes, refractor telescopes like the Mercury-707 can be used for landscape or bird watching, though the image will be inverted unless you use a diagonal prism or correct-image accessory.

What is the maximum magnification?

The telescope supports up to 140x magnification with the provided eyepieces and standard accessories.

Do I need special tools to assemble it?

No, the telescope is designed for tool-free assembly, featuring hand-tightened knobs for most connections.

Is this telescope good for astrophotography?

It is intended for visual observation. While you can take quick smartphone photos through the eyepiece, it is not designed for long-exposure deep-sky imaging.

How do I clean the optics?

Use a soft, lint-free optical cloth or a specialized lens blower. Never use household glass cleaners or harsh chemical solvents.

Troubleshooting

The image is blurry or out of focus.

Adjust the focuser knob slowly until the image becomes sharp. Ensure you are using the correct eyepiece and that it is fully seated in the diagonal.

I cannot find any objects in the night sky.

Ensure the finderscope is properly aligned with the main telescope tube during the day by centering a distant object in the main eyepiece and then adjusting the finderscope screws.

The telescope feels shaky while viewing.

Check that all tripod leg locking knobs are tightened and that the mount is firmly attached to the tripod hub.

Pros and Cons

Pros

  • Easy to set up and operate for beginners
  • High-quality 1.25-inch eyepieces included
  • Portable and relatively lightweight at 8kg
  • Provides clear, color-corrected views of the Moon
  • Sturdy aluminum tripod for stable viewing

Cons

  • Manual tracking can be challenging for high-magnification objects
  • Not intended for advanced astrophotography
  • No computerized GoTo functionality
  • Requires manual adjustment to compensate for Earth's rotation

Setup, Compatibility & Care

Setting up the Mercury-707 involves attaching the telescope tube to the AZ2 mount head, then connecting the mount to the tripod legs. Once assembled, ensure the tripod is leveled on flat ground for the best tracking performance.

Compatibility: The telescope utilizes a standard 1.25-inch eyepiece barrel, meaning it is compatible with a vast array of standard planetary filters, Barlow lenses, and specialized eyepieces.

Care: Always store the telescope in a cool, dry place to prevent moisture buildup on the lens coatings. Use only professional lens cleaning kits to wipe the objective glass; avoid touching the optics with your fingers, as skin oils can degrade the lens over time. Use the included dust caps whenever the telescope is not in use.

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