Even at the hydrogen-alpha wavelength of 656nm, the QE is over 60%. The full well capacity of the 2.4 micron pixels is 15,000e, while read noise is a low 1.6e at 30dB gain. Delta T: 40°C-45°C below ambient.
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Introducing the rewarding hobby of astrophotography at an affordable price. Suitable for photographing the moon and planets, not suitable for deep imaging. It has high resolution and fast transmission speed, beautiful appearance and easy to carry, bringing an intimate and convenient life experience to your friends and family far away!
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The kit contains 5mm, 10mm, 15mm, and 20mm extension tube with M42x0.75 thread. The tubes of various lengths can be freely mounted together in different combinations: connect M42x0.75 male thread to M42x0.75 female thread.
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Material and Stability: CNC machined aluminum alloy, lightweight yet, with low vibration, suitable for long-exposure deep-sky photography. Material: Aluminum alloy. Size Options: 310mm (12.2") dovetail plate + 120mm (4.72") mounting ring; 260mm (10.24") + 120mm (4.72"); 400mm (15.75") + 130mm (5.12") optional.
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An affordable introduction to the rewarding hobby of astrophotography. Great for lunar and planetary shots not suitable for deep space imaging. Automatic color compensate. It has a high resolution and fast transmission rate, it is nice-looking and easy to carry with you it just brings intimate and convenient life experience with your distant friends and families!
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The Askar 71F adopts a quadruplet air-spaced APO lens design, including one piece of ED glass, which can effectively reduce chromatic aberration. The dew shield of the Askar 71F is a retractable design, further shortening the overall length and increasing portability.
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This high quantum efficiency, combined with exceptional near-infrared sensitivity, enables astrophotographers to utilize IR-pass filters, which can help cut through atmospheric turbulence and reveal finer details on planetary surfaces.
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E2 Duo-narrowband filter (OIII+SII) has an ultra-high transmittance of over 85% at its center wavelength (500.7nm and 672nm). It can effectively enhance the contrast of your pictures, making it easier to display the details of the stars that otherwise are fairly difficult to spot.
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