Filter · MSRP $99
Player One Astronomy Photosphere 7.5nm 1.25" Filter E-series
Key specifications
| Filter type | Narrowband |
|---|---|
| Passband | 540 nm (photosphere) |
| Bandwidth | 7.5 nm |
| Filter size | 1.25" |
| Mounted | Yes |
About
Mounted 1.25-inch narrowband filter from Player One's E-series centred at 540 nm with a 7.5 nm bandwidth to enhance solar granulation and sunspot contrast in white-light imaging; an assistant filter used behind Baader film or a Herschel wedge, not a primary solar filter.