Askar 200mm f/4 APO Full Frame Lens

The Askar 200mm f/4 APO Full Frame Lens is a high-performance optical instrument designed for astrophotography and long-distance terrestrial imaging. This apochromatic lens combines a versatile 200mm focal length with a fast f/4 aperture, making it ideal for capturing detailed images of celestial objects and distant landscapes with exceptional clarity and color accuracy.

Optimized for full-frame sensors. Check compatibility with your camera system and desired application before purchase.

Optical Design

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The Askar 200mm f/4 APO lens features a sophisticated apochromatic design, utilizing high-quality glass elements to effectively eliminate chromatic aberration. This results in sharp, color-true images across the entire field of view, even when used at its widest aperture. The apochromatic correction ensures that stars remain pinpoint and free of color fringing, while terrestrial subjects exhibit excellent contrast and detail.

Versatile Performance

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With its 200mm focal length and f/4 aperture, this lens offers a perfect balance between reach and light-gathering capability. It's well-suited for a variety of astronomical subjects, from larger deep-sky objects to lunar and planetary imaging. The fast f/4 aperture allows for shorter exposure times, making it easier to capture faint celestial targets or freeze motion in wildlife photography.

Full-Frame Optimization

Designed to cover full-frame sensors, this lens delivers edge-to-edge sharpness and minimal vignetting across the entire image field. This makes it an excellent choice for use with full-frame DSLR or mirrorless cameras, ensuring maximum image quality and field of view utilization.

Build Quality

Constructed with high-quality materials, the Askar 200mm f/4 APO lens features a durable metal body built to withstand frequent use in various conditions. The lens is likely to include features such as weather sealing to protect against moisture and dust, ensuring reliable performance in outdoor settings.

Focusing Mechanism

Equipped with a precise focusing mechanism, possibly a dual-speed focuser, allowing for fine adjustments crucial in astrophotography and detailed terrestrial work. The focusing system is designed to maintain its position during long exposures, ensuring consistently sharp images.

Versatility

While optimized for astrophotography, this lens excels in various photographic applications, including wildlife, sports, and landscape photography. Its ability to deliver sharp, high-contrast images makes it a versatile tool for photographers across different genres.