Moravian EFW-3S-7-II — external filter wheel Mark II, 7 × 2" / 50 mm, for C3 and C1× A seven-position external filter wheel for Moravian C3 and C1× cameras built for external wheels. It takes power and control from the camera head through a single short 8-pin cable, so it needs no separate USB link or power supply and appears to software exactly like an…
Manufacturer model: Moravian EFW-3S-7-II · Specifications checked against manufacturer data on 2026-11-03
A seven-position external filter wheel for Moravian C3 and C1× cameras built for external wheels. It takes power and control from the camera head through a single short 8-pin cable, so it needs no separate USB link or power supply and appears to software exactly like an internal wheel.
| Code | EFW-3S-7-II |
|---|---|
| Compatible cameras | C3, C1× (EFW versions) |
| Positions | 7 |
| Filters | 2" threaded cells or unmounted Ø50 mm |
| Filter wheel diameter | 184 mm |
| Adapter base | "S" size Mark II adapters (up to 2": M42 × 0.75, M48 × 0.75, Canon, Nikon) |
| Filter space | Threaded cell up to 8.5 mm total (5.5 mm barrel + 3 mm thread); unmounted filters up to about 3.5 mm |
| Connection | 8-pin cable to camera head; powered by camera |
Moravian filter wheels · Filter Wheels User's Guide
Mark II Cx wheel for C3/C1x cameras made for EFW (not IFW versions). Not the Mark I G3 wheel EFW-3S-7. Weight not published for Mark II.
| Wheel diameter (mm) | 184 |
|---|---|
| Adapter base | S Mark II |
| Filter space | cell 8.5 mm total; unmounted ~3.5 mm |
Data sheet
Moravian EFW-3S-7-II — external filter wheel Mark II, 7 × 2" / 50 mm, for C3 and C1× A seven-position external filter wheel for Moravian C3 and C1× cameras built for external wheels. It takes power and control from the camera head through a single short 8-pin cable, so it needs no separate USB link or power supply and appears to software exactly like an…
Manufacturer model: Moravian EFW-3S-7-II · Specifications checked against manufacturer data on 2026-11-03
