SV503 ED 102mm F/7 Doublet Refractor Telescope – Premium ED APO for Astronomy & Astrophotography

The SV503 ED 102mm F/7 Doublet Refractor is a high-performance optical instrument designed for serious astronomers, astrophotographers, observatories, and research users. With its Extra-Low Dispersion (ED) glass, high transmission coatings, and a robust CNC-machined body, this telescope delivers exceptional clarity for both deep-sky astrophotography and high-resolution visual observation.

Now available exclusively in India through Modern Telescopes, the country’s largest authorized telescope dealer and distributor.

Key Features of SV503 ED 102mm F7 Doublet Refractor

✔ ED Doublet APO Lens – Ultra-Sharp, Color-Free Views

The F7 ED doublet optical system dramatically reduces chromatic aberration, giving you pinpoint stars, excellent contrast, and crisp details—perfect for planetary, lunar, and nebula imaging.

✔ 102mm Aperture – Ideal Balance of Light & Portability

A 102mm aperture gathers enough light to reveal:

• Globular clusters

• Galaxies

• Nebulae like Orion & Lagoon

• Lunar craters with razor-sharp clarity

• Planetary details on Jupiter, Saturn, Mars, and Venus

✔ Fully Multi-Coated (FMC) Optics

Anti-reflective coatings enhance contrast and brightness, ensuring high-quality astrophotography results even under challenging sky conditions.

✔ Precision 2.5" Dual-Speed Rack & Pinion Focuser

Supports heavy imaging setups like full-frame DSLRs, cooled astro cameras, filter wheels, and guiders—offering smooth, accurate focusing necessary for long-exposure astrophotography.

✔ Durable & Lightweight CNC Construction

Machined aluminum tube with a matte black internal baffling ensures durability, reduced reflections, and professional-grade performance.

✔ Vixen-Style Dovetail + Tube Rings Included

Easily mounts on most equatorial mounts such as:

• Sky-Watcher EQ5 / HEQ5 / EQ6

• Celestron AVX
  

• ZWO AM3 / AM5 strain wave mounts

Technical Specifications

Why SV503 102mm ED is a Top Choice for Astrophotographers in India

1. Perfect Balance of Price, Performance & Portability

Compared to triplets, this ED doublet offers a superb entry point for crisp imaging at a more affordable price.

2. High-Quality Stars for DSLR & Cooled Camera Imaging

Amazing for capturing:

• Andromeda Galaxy

• Orion Nebula

• Pleiades (M45)

• Lagoon Nebula (M8)

• Star fields of Milky Way

3. Excellent for Both Beginners & Advanced Users

Whether you're switching from a beginner refractor or building a portable imaging rig, the SV503 102mm remains one of the most versatile telescopes in its class.

Uses & Applications

🔭 Deep-Sky Imaging

Ideal for nebulae, galaxies, clusters, star fields.

🪐 Planetary & Lunar Observation

High contrast and low chromatic aberration make planets and the Moon incredibly sharp.

📸 Astrophotography

Compatible with:

• DSLR cameras

• Mirrorless cameras

• Dedicated astrophotography cameras (ZWO, QHY, Atik)

• Filter wheels & off-axis guiders

🏫 Educational & Observatory Use

Excellent for schools, colleges, and research observatories.

Why Buy from Modern Telescopes (India’s Largest Telescope Store)?

• Authorised India distributor for SVBONY, Celestron, GSO, Explore Scientific, ZWO & more

• 100% genuine products with full warranty

• PAN-India shipping

• Installation & setup support

• Expert guidance for choosing the right telescope

• Dedicated support for astrophotography beginners & professionals