Player One

Player One 2.5mm CS Lens


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2.5mm CS Lens - Versatile Lens for All-Sky Monitoring

Explore the Sky with our 2.5mm CS Lens

The 2.5mm CS Lens is designed for all-sky monitoring with a planetary camera, but it can also be used with guiding cameras. Crafted from durable metal, this lens offers versatility and reliability for your astrophotography needs.

Wide Field of View for All-Sky Monitoring and Guiding

With a focal length of 2.5mm, it provides a wide field of view, making it ideal for all-sky monitoring. It features CS threads, ensuring compatibility with various camera systems. When paired with a 1/2″ format camera, such as the Neptune series, it offers a wide field of view of 170 degrees, capturing a comprehensive view of the sky.

Compatible with Planetary and Guiding Cameras

In addition to all-sky monitoring, this lens can also be used with guiding cameras for precise tracking and guiding during your astrophotography sessions. Its versatile design expands the possibilities of your imaging setup.


Enhance your astrophotography experience with the 2.5mm CS Lens. Estimate the field of view and explore the vastness of the night sky with confidence.

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Player One 2.5mm CS Lens