Lunt Anti-Reflex Filter for LS100THa / DSII
HRG100DS anti-reflection filter for LS100THa / DSII system
This is not a stand-alone filter! It can only be used at Lunt Solar Systems LS100 THa solar telescopes with DSII double-stack module.
The LS100THa H-alpha solar telescope can be very easily double-stacked by using the 100 mm doulbe-stack filters LS100FHa (article number 0550400). This combination offers high quality double-stacking for the observer, but it is also expensive.
A reasonably priced alternative is available by the internal DSII doulbe-stack modules. The DSII modules will reduce the bandwidth to <0.5 Angstroms. The DSII module is designed to provide enhanced surface detail, allowing for higher contrast views of the filaments and active regions.
But the DSII modules will also produce reflections that will be visible as strong glow around the sun. This glow is no problem by observing the solar surface. But it could be a problem by observing prominences, and some observers find this glow distracting.
The anti-reflection filter HRG100DS for LS100THa is designed to solve this problem. The filter will effectively reduce the reflections.
The HRG100DS is easy to install. It is not needed to send the telescope back to factory, installing can be done by user.Delivery contains:
- HRG100DS anti-reflection filter
- Instruction manual
Lunt Anti-Reflex Filter for LS100 THa / DSII