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Explore Scientific  |  SKU: ES-FF2F5/F7

Explore Scientific Field Flattener f/5 to f/7

$149.99 $179.99

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Ships from US warehouse in 1-2 business days

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Explore Scientific Field Flattener f/5 to f/7


Transform Your Astrophotography: Explore Scientific Field Flattener f/5 to f/7

Achieve Perfection in Your Celestial Captures

Elevate your astrophotography with the Explore Scientific Field Flattener, specifically engineered for refractor-type telescopes operating at focal ratios between f/5 and f/7. Designed to combat field curvature and coma aberration, this essential accessory ensures that stars at the edge of your field of view are just as sharp and pinpoint as those at the center.

Key Features:

  • Coma Aberration Correction: Optimized for astrophotography, our field flattener eliminates coma aberration, transforming stars that would otherwise appear as 'comets' into crisp, clean points of light across your entire image.
  • Versatile Compatibility: With a 2-inch barrel, this flattener seamlessly attaches to any two-inch focuser, offering wide compatibility with a variety of refractor telescopes within the specified focal ratio range.
  • No Focal Length Alteration: Integrate this flattener into your setup without affecting the telescope’s focal length, preserving the original optical characteristics of your telescope.
  • Easy Camera Connection: Features a T-ring thread for straightforward attachment of DSLR cameras or dedicated astrocameras, simplifying your astrophotography setup.
  • Superior Optical Quality: Boasts fully multi-coated optics and a 38 mm clear aperture, ensuring maximum light transmission and image clarity.
  • Optimal Back Focus: Requires 55mm (+/-2mm) of back focus/spacing, allowing for precise alignment with your camera sensor for flawless imaging.
  • Elegant Design: The premium high-glossy anodizing finish not only provides durability but also adds a touch of elegance to your astrophotography equipment.

Unlock the Full Potential of Your Astrophotography

Field curvature and coma no longer have to limit the quality of your astrophotographs. With the Explore Scientific Field Flattener, you're equipped to capture the cosmos with unparalleled clarity and detail. Tailored for the discerning astrophotographer who demands perfection in every shot, this flattener is a game-changer for those looking to push the boundaries of what’s possible in celestial imaging.

Please Note: This device is designed exclusively for photographic purposes and is not intended for visual observation.


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Explore Scientific Field Flattener f/5 to f/7 | ES-FF2F5/F7 | 0811803034297

Explore Scientific Field Flattener f/5 to f/7

$149.99 $179.99





Focal Length


Focal Ratio


Field of View



Fully multi-coated

Barrel Size





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