Photosphere S-Series Solar Filter
/!\Warning this filter should not be used without a full aperture filter /!\
Filtre de la série Player One S utilisant un substrat en verre optique de haute qualité et une technologie de revêtement composite multicouche, qui a d'excellentes performances optiques en astrophotographie.
Player One S series filter using high quality optical glass substrate and multi-layer composite coating technology, which has excellent optical performance in astrophotography.
1.25 inch Photosphere 10nm Filter（Photosphere Enhanced Filter）
The Photosphere filter is an assistant filter, the telescope must use the Baader or Herschel coin film for adequate sunlight reduction, then you can use this filter for imaging.
The Photosphere filter is a narrowband filter, CWL is 540nm, passband is 10nm.
Why use a Photosphere filter?
As we know, we do photosphere solar imaging, usually use Herschel corner to get the best contrast, maybe add IR685 filter to improve the view condition. But that's not the best way to shoot Photosphere.
Photosphere has the best detail and contrast at close to 540nm, with this 10nm Photosphere filter you will be able to achieve impressive solar granulation and sunspot detail like this:
Where should I install my Photosphere filter?
Usually we recommend installing your Photosphere filter on the 31.75 slider, this can also help you against dust falling on the camera glass.
Features:
- Size: 1.25 inch, M28.5*0.6 thread
- Frame thickness: 5mm body + 2mm thread, a total of 7mm
- Thickness: 2mm
- Bandwidth: 10nm
- CWL (center wavelength): 540 nm
- HP: 1/4 lambda
- Transmission: ≈97%
- Depth lock: OD3
