Its user-friendly design makes it easy to install and use, allowing you to on exploring the universe. -Material:Plastic, Electronics. | Health & Beauty |. | Sporting Goods |. | Sound & Vision |.
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An Ultra Multi-Coating is also featured, as well as a built-in petal-shaped lens hood, to suppress lens flare and ghosting for improved contrast when working in bright, direct lighting conditions.
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The size of the compatible filter glass here varies depending on the size of the QHY5III V2 series CMOS, but it is basically a standard laboratory filter specification. Compared to the USB3.0 Type-B interface used in the previous generation, the Type-C interface has a longer life and is more flexible.
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◎The ultra-wide angle of 110° and the brightness of F2 make this lens ideal for landscape photography and whole buildings, as well as for astrophotography. ◎Focal length 7.5mm, F2, ultra wide-angle design with 110° angle of view, which is roughly equivalent to a 35mm full-size equivalent of 15mm.
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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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Sleeve Internal Thread: M48x0.75mm(Only Refers to the 9.5mm Filter Threads, The Rest are Extinction Threads). Threaded for Standard 2" Eyepiece Filters (M48 0.75mm). Fully Baffled to reduce reflections.
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The ring adapter can't auto focusing :The adapter ring has no electrical connection and diaphragm & focusing are required to be set by manual. 1 X Photography Extension Tube. Thread: Both the adapter are universal M42x0.75 thread.
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