Ogma 7-Position 2-Inch Filter Wheel with EZ Access
Unique EZ Access Filter Cap — inspect, remove dust, or replace filters without disassembling the imaging train.
Seven Large Filter Positions — keep a complete LRGB and SHO filter set installed and ready for automated imaging.
2-Inch and 50 mm Filter Compatibility — accepts standard 2-inch mounted filters and 50 mm round unmounted filters.
Zero Light Leaks — precision-built. No perimeter gasket required.
USA-Developed Firmware and Electronics — engineered for security, reliability, and long-term support.
Open-Source ASCOM and INDI Drivers — transparent, community-accessible drivers for Windows and Linux imaging systems.
Firm and Stable USB Plug — A filter wheel doesn't need an ultra-fast, tiny USB3 plug; it needs a plug that will stay put all night.
USB Powered — power and control through one USB connection, with no separate power supply required.
Broad Camera Compatibility — designed to work with cooled astronomy cameras from most major manufacturers.
Crafted With Care — final assembly performed in the United States.
Highlights
Filters inevitably collect dust. They may also need to be inspected, repositioned, replaced, or temporarily removed as your imaging requirements change.
With most electronic filter wheels, reaching the filters means removing the camera or off-axis guider, disconnecting adapters, disturbing cable routing, or opening the wheel’s entire outer cover. On some imaging trains, the cover screws are blocked by equipment attached directly to the wheel.
The OGMA OFW72EZ solves this problem with a dedicated filter-access cap.
Your camera, OAG, adapters, and filter wheel can remain connected. Camera orientation, optical spacing, and cable routing remain undisturbed while you service the filters.
Only the access area is opened rather than exposing the complete interior of the filter wheel.
DSO Camera Friendly
Camera and Telescope Compatibility
This OGMA Filter Wheel is designed for broad mechanical compatibility and is among the most versatile options available today. Unlike many third-party filter wheels, it can be mounted directly to QHY cooled cameras without modifying or enlarging mounting holes. This is possible because the OGMA Filter Wheel uses correctly sized mounting clearances, whereas many non-QHY wheels use undersized holes that require drilling.
The following camera families were explicitly considered during the design process. Additional models may also be compatible depending on their mechanical interface.
All OGMA cooled cameras.
ToupTek and ZWO cooled cameras with six M2.5 mounting holes on the front flange (e.g., ATR3, ASI2600, ASI6200).
QHY cameras with six M3 screws mounting holes on the front flange (e.g. QHY268M/C)
Player One cooled cameras with six M2.5 mounting holes on the front flange, provided you are comfortable installing the filter wheel rotated by 30°.
All Threaded cameras with a male M42 front thread, such as ASI1600, ASI294, SVBony SV605, or SV405.
The package also includes adapters to support a wide range of camera and telescope connections:
M54 (M) to M42 (F) thread adapter (recommended on the camera side for M42 front threaded cameras)
M54 (M) to M48 (F) x 17.5 mm extension (recommended on the telescope side when not using an OAG)
For detailed installation instructions, firmware updates, and mechanical drawings, please visit the manual pages and firmware section.
Mechanical Drawings
Please note that this filter wheel has a back focus of 20 mm (width).
Warranty
OGMA warrants your product to be free from defects in materials and workmanship for one year. OGMA will repair or replace a product or part which, upon inspection by OGMA, is found to be defective during one year following the date that you receive the equipment.
For specific details, read OGMA's limited warranty.