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

The Askar ACL200 G2 is a cutting-edge professional lens specifically designed for astrophotography enthusiasts using cameras equipped with a full-frame matrix. This latest version builds upon the success of its predecessor, featuring identical optics while incorporating valuable user feedback. One notable upgrade is the modified mount, now equipped with an integrated Vixen foot, enabling the seamless installation of a guider or an ASIAIR computer.

The optical system of the ACL200 G2 comprises six elements arranged in three groups. To effectively eliminate chromatic aberration, two lenses have been crafted using low dispersion (ED) glass. The Askar ACL200 stands out among standard lenses due to its exceptional image quality, not only at the center but also across the entire frame, providing outstanding field correction.

Addressing the needs of discerning users, the manufacturer has equipped this model with a dual manual focus adjustment mechanism, consisting of both a pre-adjustment and fine adjustment knob. This enables precise focusing control, ensuring optimal image sharpness.

The Askar ACL200 excels not only in performance but also in construction quality. Both the lens body and sunshade are meticulously crafted from durable metal, enhancing its solidity while facilitating secure and stable mounting on a tripod using 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.