ToupTek AFW-L 7×2" Electronic Filter Wheel

The ToupTek AFW-L 7×2" is a large-format motorized electronic filter wheel accommodating seven 2-inch mounted filters. Designed for use with ToupTek's full-frame and large APS-C cooled DSO cameras, it provides repeatable, software-controlled filter selection for automated multi-filter imaging sequences in NINA, SharpCap, and all ASCOM-compatible platforms.

Product Overview

The AFW-L uses a precision stepper motor for quiet, accurate, repeatable filter positioning. Seven positions accommodate a complete LRGB + SHO (Ha, SII, OIII) filter set or any combination of 2" mounted filters. M54 front and rear threads provide direct connection to ToupTek SkyEye and ATR2600 camera systems. USB-powered — a single USB cable handles both power and data.

Who Is This Product Best For?

Advanced astrophotographers running ToupTek full-frame or large APS-C monochrome cameras who want a complete 7-position electronic filter wheel for LRGB + narrowband imaging workflows.

Why Choose This Product?

• 7 positions for 2" filters — holds a complete LRGB + Ha + SII + OIII set (7 filters) in a single wheel
• Full-frame coverage — 2" format clears full-frame sensors without vignetting
• Precision stepper motor — accurate, repeatable filter positioning with sub-step microstepping
• M54 connection threads — direct integration with ToupTek SkyEye62AC/AM, SkyEye24AC, ATR2600C/M
• USB bus-powered — single cable for power and control
• ASCOM, NINA, SharpCap compatible — full automation in all major capture platforms

Recommended Uses

• Automated LRGB colour imaging with ToupTek monochrome DSO cameras
• Full SHO + LRGB narrowband imaging workflows
• Automated filter sequences in NINA and SharpCap

Compatibility and Accessory Notes

• Filter size: 2" mounted filters (48mm thread) — ToupTek LRGB 2" and SHO 2" sets are compatible
• Connection threads: M54×0.75 front and rear
• Compatible cameras: ToupTek SkyEye62AC/AM, SkyEye24AC, ATR2600C/M, ATR294C/M
• Also compatible with ToupTek OAG-L and OAG-X when used in the imaging train
• Software: ASCOM, NINA, SharpCap, MaxIm DL, and all ASCOM-compatible platforms

Important Limitations

• 2" mounted filters only — not for 36mm unmounted or 1.25" filters; use AFW-M with interchangeable disks for other formats
• M54 connection — M48 adapter required for cameras without M54 thread
• Back-focus impact — confirm total back-focus budget before ordering

Frequently Asked Questions

AFW-L vs AFW-M — which should I choose?
The AFW-L holds 7 positions of 2" mounted filters in a single large-format body — ideal for full-frame cameras with a complete LRGB + SHO filter set. The AFW-M is the compact APS-C model with interchangeable disks in 1.25", 36mm, and 2" formats. Choose the AFW-L for full-frame 7-position 2" filter setups; choose the AFW-M for smaller cameras or mixed filter format flexibility.

Does the AFW-L work with the ToupTek PureSight A1 2" dual narrowband filter?
Yes — the PureSight A1 is a 2" threaded filter and fits in any of the AFW-L's seven positions.

Our Recommendation

The ToupTek AFW-L 7×2" is the definitive large-format filter wheel for ToupTek full-frame monochrome camera setups. Seven positions give you a complete LRGB + SHO toolkit in one wheel, and M54 threads integrate directly with the SkyEye62 and ATR2600 camera series. If you are building a serious narrowband imaging rig around ToupTek full-frame cameras, the AFW-L is the filter wheel to have.