Player One E-Series 1.25″ Photosphere 7.5nm Filter
SKU: PS125E
Category: Filter and Wheel
Description:
The Player One E-Series 1.25″ Photosphere 7.5nm Filter is part of the upgrade series, offering a higher standard compared to the S-Series. It utilizes high-quality optical glass substrate and multi-layer composite coating technology, specifically optimized for CMOS/CCD cameras, delivering professional effects in astrophotography.
The Photosphere filter is an assistant filter used in solar photosphere imaging. It is designed to be used with a Baader film or Herschel wedge to adequately reduce sunlight before applying the filter for imaging. With a narrowband design and a center wavelength (CWL) of 540nm, it offers a bandwidth of 7.5nm.
Why use a Photosphere filter? The Photosphere filter allows you to capture the best detail and contrast of the sun`s photosphere. By using the Photosphere 7.5nm filter, you can achieve impressive solar granulation and capture detailed sunspot features.
Setup your Photosphere filter on a T-mount to ensure optimal performance and to protect against dust particles on the camera glass.
Specifications:
- Filter Size: 1.25 inch
- Thread: M28.5*0.6
- Frame Thickness: Body 5mm + Thread 2.5mm, total of 7.5mm
- Thickness of Filter Lens: 2.5mm
- Bandwidth: 7.5nm
- CWL (Center Wavelength): 540nm
- PV (Peak-to-Valley): 1/4 lambda
- Transmittance: ≈97%
- Blocking Depth: OD4
Player One E-series is an upgrade series of S-series, using high quality optical glass substrate and multi-layer composite coating technology, producting with higher standard than S-series, optimized for CMOS/CCD camera, can provide very professional effect in astrophotography.
1.25″ Photosphere 7.5nm filter（Photosphere enhanced filter）
Photosphere filter is an assistant filter, telescope must use baader film or Herschel wedge for adequate reduction of sun light, then you can use this filter for imaging.
Photosphere filter is a narrowband filter, CWL is 540nm, bandwidth 7.5nm.
Why to use a photosphere filter?
As we know, we doing solar photosphere imaging, usually use Herschel wedge to get best contrast, maybe add an IR685 filter to improve seeing condition. But, it’s not the best way to shoot photosphere.
Photosphere has best detail and contrast at almost 540nm, with this photosphere 7.5nm filter, you will be able to get some impressive solar granulation and sunspot details like this:
Where should I setup my photosphere filter?
Usually, we recommand to setup your photosphere filter on T-mount, this also can help you against dust drop on camera glass.
Specifications: 1.25 inch, thread M28.5*0.6
Frame thickness: body 5mm+ thread 2.5mm, a total of 7.5mm
Thickness of filter lens: 2.5mm
Bandwidth: 7.5nm
CWL (center wavelength): 540nm
PV: 1/4 lambda
Transmittance: ≈97%
Blocking depth: OD4
