Askar SQA55mm f/4.8 Telescope – Quintuplet Air-Spaced SD Glass Petzval Astrograph.

Askar SQA55 55mm f/4.8 Petzval Astrograph telescope is designed as a quintuplet air-spaced SD glass Petzval astrograph, making it perfect for both astrophotography and daytime photography enthusiasts. Its advanced optical system ensures stunning image quality, whether you're capturing the stars or landscapes.

Askar SQA55 55mm f/4.8 Petzval Astrograph-Check out this video and review from Trevor Jones at AstroBackyard

Askar SQA55 55mm f/4.8 Petzval Astrograph High-Quality Optics: Quintuplet Design with SD and ED Glass Elements

This Askar SQA55 55mm f/4.8 Petzval Astrograph features a quintuplet optical system that incorporates one SD glass element and one ED glass element. These elements work together to deliver a flat field with exceptional colour correction, resulting in sharp, accurate images across the frame.

Askar SQA55 55mm f/4.8 Petzval Astrograph Precise Star PSF and Flat Field Imaging

With an on-axis star PSF (Point Spread Function) of 2.5μm and 4μm in the corners, the Askar SQA55mm ensures pinpoint stars and high-resolution images. The flat field design eliminates the need for a field flattener, allowing you to capture stunning astrophotography images without distortion.

Askar SQA55 55mm f/4.8 Petzval Astrograph No Need for Back Focus Calculation

Thanks to the Petzval lens structure, there's no need for complicated back focus calculations. Simply position your camera sensor between 50mm and 60mm from the rear M48 connection thread to achieve optimal performance for full-frame cameras.

Askar SQA55 55mm f/4.8 Petzval Astrograph Compact and Versatile Lens Hood with Reversible Design

The Askar SQA55mm comes equipped with a convenient lens hood that easily attaches to the lens barrel. When not in use, it can be reversed for compact storage, reducing the overall size of the telescope for easier transportation.

Perfect for Astrophotography and Daytime Photography

Whether you're capturing stunning night skies or beautiful daytime landscapes, the Askar SQA55mm f/4.8 telescope offers unparalleled performance. Its advanced design and optical quality make it a versatile choice for photographers of all kinds.