PegasusAstro Indigo 7 × 2-inch Filter Wheel + Optolong LRGB Filter Set The Indigo is a seven-position electronic filter wheel for 2-inch mounted or 50 mm unmounted filters. Its direct-drive stepper motor and optical position sensor provide repeatable selection, with bidirectional movement choosing the shortest route between filters.
Manufacturer model: PegasusAstro Indigo 7 × 2-inch Filter Wheel + Optolong LRGB Filter Set · Specifications checked against manufacturer data on 2026-11-03
The Indigo is a seven-position electronic filter wheel for 2-inch mounted or 50 mm unmounted filters. Its direct-drive stepper motor and optical position sensor provide repeatable selection, with bidirectional movement choosing the shortest route between filters.
The CNC-machined aluminium body is 19 mm thick, or 19.6 mm with slide adapters installed on both faces. Maximum filter height depends on the connection: 8 mm with the direct OAG hole pattern, 6.4 mm with threaded slide adapters, or 6 mm with the slot cover ring.
The manufacturer documents M54 and M42 threaded options, a six-hole 62 mm camera pattern and a four-hole 85 mm pattern. Rotatable slide adapters allow the camera and telescope-side orientation to be set before securing the screws.
One USB 2.0 Type-B cable supplies both communication and 5 V power. The wheel draws 300 mA during movement and weighs 900 g. Unity includes the ASCOM driver, with INDI and INDIGO support also documented.
This manufacturer-listed PEG-INDIGOFW-OPTO bundle adds four 2-inch mounted Optolong filters: luminance with UV/IR rejection, red, green and blue. Optolong’s spectral design shares OIII between blue and green and leaves a gap around the 589 nm sodium line. Multilayer ion-assisted coatings provide the published transmission-band design for colour imaging with a monochrome camera.
Pegasus Astro manufacturer documentation
Bundle identity and 2-inch mounted filter format confirmed by Pegasus product list. Wheel specifications follow Indigo manual v1.2; filter features follow Optolong LRGB documentation. No numeric transmission, bandwidth or filter-glass thickness is inferred from reference graphs.
| Filter formats | 2-inch mounted; 50 mm unmounted |
|---|---|
| Maximum filter diameter (mm) | 50.8 |
| Body thickness (mm) | 19 |
| Thickness with both slide adapters (mm) | 19.6 |
| Body | CNC-machined aluminium alloy |
| Maximum filter height | 8.0 mm with 6-hole/4-hole OAG; 6.4 mm with M54F/M54M/M42M adapter; 6.0 mm with slot cover ring |
| Telescope connections | M54 × 0.75 female or male; M42 × 0.75 male; 6-hole/4-hole 62 mm pattern |
| Bundle part number | PEG-INDIGOFW-OPTO |
| Included filter set | Optolong Luminance (UV/IR cut); Red; Green; Blue |
| Included filter format | 2-inch mounted |
| Filter coating | Multilayer anti-reflection; ion-assisted deposition |
| Filter band design | OIII shared between blue and green; gap between green and red rejects the 589 nm sodium line |
| Filter parfocal design | RGB 1:1:1, as specified by Optolong |
Data sheet
PegasusAstro Indigo 7 × 2-inch Filter Wheel + Optolong LRGB Filter Set The Indigo is a seven-position electronic filter wheel for 2-inch mounted or 50 mm unmounted filters. Its direct-drive stepper motor and optical position sensor provide repeatable selection, with bidirectional movement choosing the shortest route between filters.
Manufacturer model: PegasusAstro Indigo 7 × 2-inch Filter Wheel + Optolong LRGB Filter Set · Specifications checked against manufacturer data on 2026-11-03
