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Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
Stress Free, Secure Transactions
You can trust purchasing and delivery with All-Star Telescope. All of our transactions are 100% secure and Level 1 PCI DSS compliant thanks to Shopify's ShopPay platform. For additional protection, we insure 100% of the value of every shipment we make. If it get's lost during shipment, we replace it. If it gets damaged during shipment, we replace it. We make sure your product arrives exactly as you would expect it to; we promise.
We also ensure privacy protection. We never keep any of your credit card information on file and any of your personal data is stored according to our policies.
30 Day Return Policy
Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
Price Match Promise
Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
Product Description
Introducing the most versatile inline auto focuser: the iOptron iAFS focuser with iLock technology! Utilizing a lead worm movement is the key to the iAFS focusers patented design; this method passively locks it at the exact position when movement is stopped, maintaining focus for most any sized payload even as the instrument angle is changed.
The iAFS incorporates three movement control modes, USB (computer control), on board directional buttons (for powered manual adjustments) and a manual focus wheel to override the motorized adjustment. Other features include a built-in temperature sensor, dual USB-C ports, solid all metal body, fingerprint resistant surface, 0.6 micron resolution, and position limiters to prevent over runs. It comes standard with a 2 inch visual back, and optional telescope adapters to fit various OTAs are available. The iAFS focusers will be available as the iAFS2 two inch model and the iAFS3 three inch version.
What's in the Box
Specifications
| Focuser | Inline Auto Focuser with iLock™ | Inline Auto Focuser with iLock™ |
| Focuser Size | 2" | 3" |
| Dimensions | 90.5 x 106 x 82mm | 94 x 133 x 108mm |
| Weight | 783g | 1062g |
| Clear Aperture | 51mm | 68mm |
| Maximum Payload | 5kg | 6kg |
| Drawtube Travel Distance | 30mm | 30mm |
| Focusing Resolution | 0.6um | 0.4um |
| Power/Communication Port | USB2.0 Type-C port x2 | Type-C USB2.0 port x2 |
| Driving Train | Stepper motor | Stepper motor |
| Computer Control | Yes (ASCOM and INDI) | Yes (ASCOM and INDI) |
| Automatic Focusing | Yes | Yes |
| Motorized Focusing Button | Yes | Yes |
| Manual Focusing | Yes (w or w/o motor power on) | Yes (with override) |
| Temperature Sensor | Yes (Built-in) | Yes (Built-in) |
| Camera Angle Adjustment | Yes | Yes |
| Warranty | One year limited | One year limited |
Additional Articles, Videos, and Links
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Astrophotography for Beginners Step 1: Using the Star Adventurer Tracker
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Astrophotography for Beginners Step 2: How to Shoot the Moon
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