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7e (gain 350-400) Quantum Efficiency ≈80%
Description
the telescope can reach a focal ratio of f/5
especially during long exposures necessary for night sky photography
Baader Hyperion Zoom 2.25x Barlow Lens Mars Imaging Camera 7e (gain 350-400) Quantum EfficiencyBaader Hyperion Zoom Barlow Lens (2. 25x) Precision Amplification for the Hyperion ClickStop Zoom The Baader 2. 25x Barlow Lens is an anastigmatic flatfield triplet design specifically crafted to enhance the capabilities of the Baader Hyperion ClickStop Zoom MKIII eyepiece. By pairing this barlow lens with the Hyperion Zoom, you can achieve a remarkable focal length range of 3. 5mm to 10. 5mm, offering greater flexibility for high magnification visual
