Takahashi TKA00733 – MEF-3 Fine Focus Knob

Takahashi TKA00733 – MEF-3 Fine Focus Knob

Dual-speed microfocusing for 2.7", 2.6", 2", and Epsilon 180 focusers

Sometimes it’s the smallest upgrade that makes the biggest difference. The Takahashi MEF-3 Fine Focus Knob (TKA00733) is a drop-in microfocusing assembly designed to bring dual-speed precision to a wide range of Takahashi focusers—including the 2.7", 2.6", 2", and Epsilon 180 series.

If you’ve ever wished your single-speed Tak focuser had a bit more finesse, the MEF-3 delivers. Its reduction gearing allows fine-tuned, feather-light focusing, ideal for planetary imaging, high-power double star work, or dialing in critical focus during long exposure astrophotography.

Built to match the mechanical and cosmetic finish of Takahashi optical tubes, this isn’t a third-party bolt-on—it’s a Takahashi-native upgrade, right down to the anodizing.

Key Features:

• Compatible with most Takahashi focusers: 2.7", 2.6", 2", and E-180

• Adds precision fine focus capability via dual-speed reduction gearing

• Maintains the original Takahashi mechanical quality and aesthetic

• Easily installed using factory mounting points

• Perfect for high-resolution imaging and high-magnification visual use

Cloudy Nights Community Insight

A Tak Epsilon 180 user shared that the MEF-3 “made critical focus dead simple. I can now dial it in without chasing back and forth—it just lands.”

Observing Tip

Pair the MEF-3 with a Bahtinov mask or motorized focus system and you’ve got a killer combo for deep-sky imaging. Even manually, the ability to “split hairs” in focus is a game-changer for lunar, planetary, and tight double star observing.