Lunt LS40FHa Front Mount 40mm Double Stack Solar Filter
The Lunt LS40FHa Solar Filter is a 40 mm aperture (no central obstruction) integrally tuned etalon for use on Lunt Dedicated 40 mm Telescopes
The Lunt LS40FHa Double Stack Unit is intended for use with the Lunt 40mm Dedicated Hydrogen Alpha System and requires a Lunt Solar Systems Blocking Filter (this is a safety requirement).
Because the LS40FHa Solar Filter has an estimated bandpass of <0.70 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50. Allowing for higher resolution viewing and/or imaging.
- It’s finally available! The Lunt Solar 40mm Double Stack Hydrogen-alpha Filter.
- LS40FHa solar filter front-mounted non-obstructed hydrogen-alpha filter for use with the Lunt Solar Systems 40mm Dedicated Hydrogen Alpha Telescope
- Attaches Directly to the Objective of the Lunt 40mm Dedicated Ha Telescope
- Lowers the Bandpass of your existing LS40mm telescope to ~<0.5A !
- DSII Requirements: Adapter is included with Double Stack Unit
Specifications: Lunt LS40FHa Front Mount 40mm Double Stack Solar Filter
LS40FHa Specifications: (single filter)
- Optical Aperture: 40 mm
- Etalon: <0.50 Angstrom as Double-Stack
- Tuning: Tilt
- Focal Length: 400mm (Unchanged)
- Filter Storage: Aluminum finished hard case with fitted foam
- Filter Weight: ~1 lb (~.4kg)
At The Widescreen Centre, we prioritize prompt order processing and dispatch. We strive to dispatch all orders on the same day or the next working day, depending on the time of your order. We hold extensive stocks to ensure that your items are ready for immediate despatch. Please note that the cut-off time for same-day dispatch is usually 1:30 p.m.
For delivery within Mainland UK, we use reputable couriers to provide efficient service. You can expect your package to arrive in 1-2 working days. Please note that a signature may be required upon delivery to ensure a secure receipt.
In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.
Should there be any delay in dispatching your order, we will notify you to keep you informed.
Please be aware that The Widescreen Centre cannot be held responsible for any postal or third-party delays that may occur. We are committed to providing a reliable and efficient delivery service for our valued customers.
For more information please click here
