Zero Touch, Zero Shake
Eliminate hand-induced micro-vibrations that disrupt your framing and waste precious dark-sky exposure time.
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Quick Specs
AAF
Automatic Electronic Focuser for Effortless Razor Sharp Stars
Regular price
$179.00
Unit price
Tax included
Shipping calculated at checkout.
AAF - blue is backordered and will ship as soon as it is back in stock.
Free Shippingon orders over $179
2-year warrantyfor peace of mind
Import taxescovered
Delivery and Shipping
Delivery and Shipping
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Warranty and Support
Warranty and Support
For setup support, software downloads and warranty service, contact ToupTek Astro support with your order information.
Reviews (16)
Reviews (16)
Payment & Security
Payment & Security
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Full Specifications
Full Specifications
AAF
Regular priceFrom
$179.00
Unit price
AAF - blue is backordered and will ship as soon as it is back in stock.
Why Is an Electronic Focuser Essential for Astrophotography?
Auriga - Clusters & Nebulae by ©Arndt Wolkenhauer
27 Hours with ToupTek AAF Auto-Focusing
Manual focusing is the single biggest bottleneck in modern astrophotography. A pin-point star profile at dusk will naturally drift out of focus by midnight due to subtle temperature drops and thermal contraction. An electronic focuser converts a tedious, error-prone manual chore into a seamless, automated workflow.
Beat Overnight Temperature Drift
Automatically compensate for ambient temperature changes throughout the night, locking in razor-sharp star profiles from your first frame to your last.
True Unattended Automation
Enable seamless auto-focusing after filter changes, meridian flips, or routine time intervals—allowing your rig to shoot flawlessly while you sleep.
AAF Automatic Electronic Focuser Key Features
Engineered for precision, thermal stability, and seamless system integration, ToupTek AAF provides reliable automated focus control throughout long-exposure imaging sessions.
Integrated Plug-and-Play
Compact, all-in-one hardware and software design delivering rock-solid stability and instant setup out of the box.
Is AAF Compatible with Your Telescope Brand?
Support List
- Sky-Watcher Newtonian reflectors, Black Diamond series, DOB series, etc.
- Sharpstar: All series.
- SKYROVER: All series.
- TS refractors and Astro-Tech telescopes.
Quick & Hassle-Free Mechanical Installation Guide
Installation Instructions for Telescope (Illustrated Using the ToupTek HOPE D60)
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1. Check the packing list, and assemble the specially shaped connecting plate (horizontal installation) or the rectangular connecting plate (vertical installation) using M3 screws.
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2. Remove the focusing knob from the telescope.
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3. Select a flexible coupler of the appropriate size and attach it to the telescope's focuser shaft. Insert the AAF motor shaft into the coupler and secure it with the M4 screws.
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4. Attach the specially shaped connecting plate (for horizontal installation) or the rectangular connecting plate (for vertical installation) to the focuser. Secure the plate to the AAF using M4 screws, and check that the assembly is securely mounted.
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5. Connect the USB cable. Connect the temperature probe and hand controller as needed.
Installation Instructions for Guide Scope (Illustrated Using the ToupTek GS-200 AR)
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1. Check the packing list, and assemble the specially shaped connecting plate (horizontal installation) or the rectangular connecting plate (vertical installation) using M3 screws.
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2. Remove the focusing knobs on both sides.
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3. Attach the small flexible coupler to the guide scope's focuser shaft.
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4. Attach the specially shaped connecting plate (for horizontal installation) or the rectangular connecting plate (for vertical installation) to the focuser. Secure the plate to the AAF using M4 screws, and check that the assembly is securely mounted.
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5. Connect the USB cable. Connect the temperature probe and hand controller as needed.
What's in the Box
Frequently Asked Questions
Does the AAF require a 12V power supply?
No. It operates on 5V power via a single USB-C cable, plugging directly into your mount, mini-PC, or USB hub without extra power bricks.
What is the maximum payload capacity?
The high-torque stepper motor supports imaging trains up to 5 kg (11 lbs) without slippage, even when pointing straight up at the zenith.
Is the installation difficult or permanent?
Not at all. It takes just minutes using included screws—simply swap the original coarse knob for the coupler and bracket with zero permanent modifications to your telescope.
Does the AAF save its position after powering off?
Yes. It functions as an absolute focuser and saves its exact step position, so you don't need to recalibrate your starting point every night.
How does temperature compensation work?
An onboard thermal sensor feeds ambient data to your capture software, automatically executing micro-step adjustments as temperatures drop during the night.
