Askar SQA55 264mm f/4.8 APO

Askar SQA55 Manual 264mm f/4.8 APO Telephoto Lens: High Precision for Astrophotography and Nature Photography

The Askar SQA55 264mm f/4.8 APO Telephoto Lens is a versatile tool for astrophotographers and nature photographers seeking superior image quality and precision. This manual-focus lens combines advanced optical technology with a robust design, ideal for capturing sharp details of both terrestrial and celestial subjects.

Key Features:

• Focal Length: 264 mm
• Maximum Aperture: f/4.8, adjustable up to f/22
• Aperture Diameter: 55 mm with fully open iris
• Optical System: 5-element Petzval design with built-in field flattener
• Chromatic Correction: APO lens with SD element to minimize chromatic aberrations
• Sensor Compatibility: Supports cameras with sensors up to full frame
• Focusing: Manual, highly precise, with a focus range from 5 meters to infinity
• Camera Connection: M48x0.75 thread with a working distance of 50–60 mm, optimized for 55 mm
• Filter Thread: M67x0.75 on the lens body
• Dew Shield: Diameter 92 mm, reversible for compact transport
• Dimensions: Transport length 244 mm, extended length 316 mm with dew shield
• Weight: 1.84 kg (lens only), 2.18 kg (with handle and mounting plate)

Advanced Features:

• High Optical Precision: Petzval design ensures sharp, distortion-free images, optimized for full-frame sensors.
• Sensitive Manual Focus: Perfect for applications requiring fine adjustments, such as astrophotography.
• Durable and Robust Design: Suitable for extreme conditions like cold winter nights.
• Reversible Dew Shield: Reduces transport size and offers protection when mounted.
• Rotatable Mount: Allows easy adjustment for perfect composition.

Applications:

This lens excels in:

• Astrophotography: Ideal for capturing star fields, nebulae, and celestial phenomena with exceptional clarity.
• Nature Photography: Perfect for landscapes and natural subjects with superior optical quality and high brightness.

Why Choose the Askar SQA55?

The Askar SQA55 combines precision engineering, high-grade optical design, and durable construction, offering reliable performance for all types of photography. It’s the perfect choice for photographers seeking a top-tier tool to capture the best of nature and the night sky.