The Askar 50P 50 mm f/3.8 quadruplet APO tube is an ultra-portable, high focal ratio apochromatic refractor specifically designed for astrophotographers.
The tube features a Petzval optical design with a four-element objective that delivers high-contrast, detailed images, and fits perfectly with cameras equipped with APS-C sized sensors. One of the main advantages of the Askar 50P 50 mm f/3.8 quadruplet APO tube is its ability to guarantee sharp stars across the entire field of view, even at the edges of the image. The low-dispersion lens element minimizes chromatic aberration.
The 50 mm objective diameter and f/3.8 focal ratio allow for short exposure times, making it an ideal choice for fast, wide-field astrophotography. The compact size and low weight of the tube make it easy to transport, making it a perfect choice for traveling astrophotographers. Its reversible dew shield makes transportation even more compact.
The front lens of the Askar 50P apo features an M52 filter thread, while camera connection is provided via an M48 thread.
The product is equipped with a precise helical focuser and high-quality construction that meets the highest professional standards. The Askar 50P 50 mm f/3.8 quadruplet APO tube is an ideal choice for those seeking uncompromising image quality in an ultra-portable, high focal ratio astrograph.
