• Explore Scientific 2.5" Hex Focuser Adapter – 510366
  • Explore Scientific 2.5" Hex Focuser Adapter – 510366
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Explore Scientific

Explore Scientific 2.5-Inch Hex Focuser Adapter for Field Flattener — Connect Your Hex Focuser to the Explore Scientific Field Flattener

Explore Scientific 2.5-Inch Hex Focuser Adapter for Field Flattener — Connect Your Hex Focuser to the Explore Scientific Field Flattener

$99.99
$99.99
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The Explore Scientific 2.5-inch Hex focuser adapter connects your Hex focuser to an Explore Scientific field flattener, giving imagers a rigid, threaded link in the optical train. This telescope focuser adapter removes slop and flexure between the focuser and flattener so your stars stay sharp across the whole frame.

A field flattener corrects the curved focal plane of many refractors so stars are pinpoint edge to edge. To work correctly it needs a solid, correctly spaced connection to the focuser — which is exactly what this adapter provides.

Who it's for

For astrophotographers running an Explore Scientific 2.5-inch Hex focuser who want to attach a field flattener securely for flat-field imaging. New to imaging? See our astronomy 101 stargazing basics guide.

Key features

  • Purpose-built connection between the ES 2.5-inch Hex focuser and ES field flattener.
  • Rigid, threaded coupling that resists flexure and keeps optics aligned.
  • Cleaner flat fields by maintaining a solid, repeatable optical train.
  • Precision metal construction for durability and stability under camera loads.
  • Simple integration into an existing Explore Scientific imaging setup.
Specifications
Brand Explore Scientific
Model 510366
Type 2.5-inch Hex focuser adapter
Connects ES Hex focuser to ES field flattener
Use Flat-field astrophotography

Frequently asked questions

What is this adapter for?
It links an Explore Scientific 2.5-inch Hex focuser to an Explore Scientific field flattener so the optics stay rigidly and correctly connected.

Do I still need a field flattener?
Yes. This is the connecting adapter; the field flattener itself is a separate optical accessory.

Will it fit other focusers?
It's designed specifically for the ES 2.5-inch Hex focuser. Confirm your focuser model before ordering.

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Frequently Asked Questions

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