Apochromatic Refractors

Apochromatic refractor telescopes represent an advanced category of refractor telescope that offer advanced correction of both chromatic and spherical aberrations compared to the more commonly used achromat lenses.

If you’re looking for high-quality optical performance, consider exploring the extensive range of apochromatic telescopes available at 365Astronomy with impressive testimonials!

Refractor Telescope or Apochromatic Refractor?

The main difference between an apochromatic refractor telescope and a standard refractor lies in the lens correction quality. Apochromatic refractors have advanced lenses that minimise chromatic aberration, resulting in sharper images with better contrast.

They use specialised materials like extra-low dispersion (ED) glass for exceptional magnification and feature designs such as high-quality optical tubes, flat fields, and correctors that focus at least three wavelengths of light at one point. This effectively reduces colour fringes around bright celestial objects.

For serious astronomical observations, an apochromatic refractor from 365Astronomy offers stunning clarity and detail.

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Apochromatic Refractor For Astrophotography

Apochromatic refractors are the top choice for beginners in astrophotography. They are user-friendly, require minimal maintenance, and boast impressive durability.

At 365Astronomy, we’ve created a selection of what we believe to be the finest apochromatic refractors for astrophotography. These compact, lightweight, and portable options represent our top picks for anyone embarking on their journey into stargazing.

Shop our astrograph range to explore the deep sky.

Apochromatic Glossary

“ED”- The abbreviation “ED” refers to “Extra-Low Dispersion”, which describes the kind of optical glass utilised in the construction of the telescope. Using ED glass helps prevent stars from displaying false colours, a common issue with lower-end telescopes that lack this feature.

“APO”- The acronym “APO” stands for apochromatic, and nearly all apochromatic refractors incorporate ED glass.

Frequently Asked Questions

How is an apochromatic refractor different from a standard refractor?

Standard refractors (achromats) typically correct for only two wavelengths of light, which can cause colour fringing around bright objects. Apochromatic refractors correct for three or more wavelengths, significantly reducing chromatic aberration and delivering improved contrast and clarity.

What is the difference between refractors and reflectors?

The key difference between refractors and reflectors lies in how they gather and focus light:

• Refractor Telescopes use lenses to bend (or refract) light. They have a sealed optical tube and are known for producing sharp, high-contrast images with little maintenance. Refractors are especially good for observing the Moon, planets, and double stars.
• Reflector Telescopes use mirrors to reflect and focus light. They typically offer larger apertures at a lower cost, making them ideal for deep-sky observing (like galaxies and nebulae). However, they may require more frequent alignment (collimation) and are usually bulkier.

In summary, refractors are known for clarity and ease of use, while reflectors excel at light-gathering and affordability for larger apertures.

How quickly will my order arrive?

Small orders are usually posted out using Royal Mail 1st Class Recorded Mail, while larger orders are sent using companies such as DPD, Parcel Force and UPS. If your order is time-sensitive, please give us a call at 020 33 845 187 or 08455 275 813 to speak to us about faster delivery.