ToupTek EFW Sizes:5x2" So it's not a "must"

So it's not a "must"

Deforming the filter housing can cause it to jam even more than before

FDD: B1/3/5/8    TDD: B34/38/39/41   WCDMA: B1/8  EVDO: BC0

Technical Specifications of ZWO OIII Narrowband Filter

Ease of Use ★★★★★ 10/10 Automation ★★★★★ 10/10 Wireless Control ★★★★★ 10/10 Beginner Friendly ★★★★★ 10/10 System Integration ★★★★★ 10/10 Value for Money ★★★★★ 9

ToupTek EFW Sizes:5x2" So it's not a "must"ToupTek Electric Filter Wheel (AFW) Overview: The ToupTek Electric Filter Wheel (AFW) is designed to enhance your astrophotography experience by enabling rapid and precise positioning of selected filters along the imaging path. Perfectly suited for use with monochrome cameras, this filter wheel allows you to interchange filters quickly without the need to remove the camera, streamlining your process of astronomical image acquisition. Key Features: