Maximize Astrophotography with the

Askar 0.8x Full Frame Reducer for 140APO

Optimized Performance: Specifically designed for the Askar 140APO, this 0.8x reducer effectively reduces the telescope's focal ratio to F5.6, perfect for advanced astrophotography.
Enhanced Field of View: Provides a wider field of view with a reduced focal length, ideal for capturing expansive celestial scenes including nebulae, star clusters, and more.
Triplet Lens Design: Features a high-quality triplet lens setup, ensuring excellent field flattening and minimal optical aberrations.
Full-Frame Image Circle: Supports a 44mm full-frame image circle, allowing for comprehensive coverage of celestial events without vignetting.
Built for Precision: CNC machined construction with threaded metal caps at both ends to prevent dust ingress and ensure durability.
Standardized Back Focus: Maintains a standard 55mm back focus, ensuring compatibility with a wide range of astrophotography accessories.
Versatile Adapter Options: Includes M540.75 and M480.75 adapters for seamless connectivity with various camera systems.
Direct Filter Mounting: Equipped with a built-in M48*0.75 2-inch filter thread for straightforward installation of filters to enhance image quality.
Weight and Dimensions: Weighs 0.75kg, designed to be robust yet manageable for various astro-imaging setups.

The Askar 0.8x Full Frame Reducer for 140APO is a critical tool for astrophotographers looking to enhance their imaging capabilities with reduced exposure times and wider fields of view, all while maintaining sharpness and quality across the entire frame.

Specifications

0.8x Reducer Parameters
（After attaching）140APO Focal length	784mm
（After attaching）140APO Focal ratio	f/5.6
Lens Number	Triplet design
Back Focus	55mm（from the base of M48 male thread）
Weight	0.63kg
Rear-end thread type	M54×0.75 M54×0.75-M48×0.75 (M48×0.75 filter thread inside)