Enjoy excellent resolution of the Solar surface in complete safety with this Lunt Herschel Wedge
- Solar observation in White-Light for perfectionists
- For refracting telescopes up to 102mm aperture
- Shows sunspots and granulation at best contrast
- In 90° angle housing like a Star Diagonal
- Necessary ND3.0 filter is already factory installed
- No escaping stray light due to integrated light trap
- Absolutely safe, no danger for the eyes
Herschel Wedges are used to observe the sun in White Light. Around 95% of the Sun's light is suppressed by the wedge's ceramic prism. The remaining sun light is dimmed further by a factory-installed ND3.0 grey filter. Lunt Solar Systems Herschel wedges are installed in a fully closed housing with integrated heat trap. No stray light can escape from this, therefore it is very safe method of observing our nearest star.
The difference between Herschel-wedges and normal front mounted filters is that the filtering takes place just before the eyepiece or camera. This provides better contrast and sharpness of the solar image - with more surface detail visible as a result. Furthermore, a Herschel wedge is inherently safer than at a front mounted filter. A Herschel wedge can not rip or become punctured like a foil filter can be and it cannot become detached from the telescope objective accidentally.
Only for use with refractor telescopes up to 102mm aperture:
Because the full energy and heat of the sun inside the telescope, we advise solely using refractors for Herschel-wedge use. The refractor must not have corrector lenses at the back. Optical elements like corrector lenses, or secondary mirrors of reflecting telescopes, could suffer from thermal build-up by concentrated solar energy and could be permanently damaged.
Tuning the brightness:
Because the Herschel-wedge produces polarised light, you can use a normal polarising filter at the eyepiece, or camera-adapter. By turning the polarising filter the image brightness can be varied to the user's liking.
This additional Polarising filter is not included. We recommend the BRESSER 1.25'' polarising filter, no: 4946464.
FEATURES
- For refractor telescopes up to 150mm aperture
- Connection to telescope: 1.25''
- Connection to eyepiece: 1.25''
- 90° housing like star-diagonal
- Especially high-quality optical surfaces for very good contrast
- Fully closed housing with integrated heat trap
- No stray light escaping - therefore it is very safe
- The needed ND3.0 filter is fix installed
- Herschel-wedge for 1.25'' focuser
- Integrated ND3.0 filter
- Transport case
- Instruction manual
Colour: | black |
---|---|
Eyepiece view direction: | Inclined view 90° |
Material: | Aluminium |
Telescope filter type: | Solar Filter White Light |
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