ASKAR 200 mm F/4 APO lens Gen. 2 (SKU: ACL200-G2)

Askar ACL200 G2 Professional Apochromatic Astrophotography Lens

The Askar ACL200 G2 is a state-of-the-art professional lens meticulously crafted for astrophotography aficionados using cameras with a full-frame matrix. Building on the success of its predecessor, this second-generation model retains the superior optics of the original while integrating valuable user feedback.

A prominent upgrade in this version is the modified mount, which now includes an integrated Vixen foot. This enhancement allows for the seamless installation of a guider or an ASIAIR computer, further expanding its usability for advanced astrophotography setups.

Optical Excellence

The optical system of the ACL200 G2 features six elements arranged in three groups. To achieve flawless chromatic aberration correction, two of these lenses are crafted from low dispersion (ED) glass. The Askar ACL200 G2 distinguishes itself from standard lenses with its remarkable image quality across the entire frame, ensuring exceptional field correction.

Precision Focus Control

Catering to the needs of discerning users, this model is equipped with a dual manual focus adjustment mechanism. It includes both a pre-adjustment and fine adjustment knob, allowing for precise focusing control and optimal image sharpness.

Durable Construction

The Askar ACL200 G2 is not only exceptional in performance but also in construction quality. Both the lens body and sunshade are meticulously crafted from durable metal, enhancing its solidity and facilitating secure, stable mounting on a tripod with the included stand.

Key Features of the Askar ACL200 f/4 Lens:

• Apochromatic astrophotographic lens with excellent field correction and minimal vignetting.
• Two ED glass lenses effectively reduce chromatic aberrations.
• Additional knob for precise focusing.
• Universal fastening with a thread size of M48x0.75.
• Built-in adapter for mounting 2" filters.
• Integrated Vixen foot for convenient guider or ASIAIR computer attachment—newly introduced in the G2 version. (First-generation lens owners can upgrade with the dedicated ACL200 upgrade kit).
• Robust metal construction.

Technical Specifications:

• Optical design: Apochromatic fixed focal length lens.
• Lens system: Six lenses arranged in three groups.
• Number of ED glass lenses: 2.
• Focal length: 200 mm.
• Front lens diameter: 50 mm.
• Front filter diameter: 82 mm.
• Additional filter attachment: Yes, 2" filter fitted in the adapter.
• Aperture: f/4.
• Maximum aperture value: f/22.
• Number of aperture blades: 10.
• Focusing: Manual, with separate knobs for coarse and fine adjustments.
• Minimum focusing distance: 3 m.
• Range of fine adjustment focus: 1 mm per full turn.
• Back focus: 55 mm.
• Recommended matrix format: Full frame.
• Image stabilization: None.
• Tripod mount: Yes, with Arca-Swiss 3/8" and 1/4" compatibility.
• Camera/camcorder mount: M48x0.75 thread.
• Finder foot: Yes, Vixen.
• Body material: Metal.
• Body finish: Black and red.
• Dimensions: 100 x 195 mm.
• Weight: 1.8 kg.

Included Accessories:

• Askar ACL200 f/4 Generation 2 (G2) lens.
• Lens caps.
• Sun visor.
• 2" filter adapter.
• Protective case.
• Tripod foot.
• Documentation.

Warranty:

Enjoy peace of mind with a 24-month warranty.

The Askar ACL200 G2 is revolutionizing astrophotography by combining outstanding optical performance, meticulous craftsmanship, and user-centric features. Whether you're a professional astrophotographer or an enthusiastic hobbyist, this lens is the perfect companion to capture breathtaking celestial images with precision and clarity.