Description
The Lunt LS60FHa is a 60 mm aperture (no central obstruction) integrally tuned etalon for use on a customer supplied refractor.
A B600 blocking filter provides full disk images on telescopes up to 540 mm focal length. Larger blocking filters suitable for longer focal length telescopes are also available options. Choose the filter/blocking filter package that is suitable for your telescope and your focuser size:
- B600 – Up to 540 mm focal length, offered in 1.25″ or 2″ diagonal
- B1200 – Up to 1080 mm focal length, offered in 1.25″ or 2″ diagonal
- B1800 – Up to 1620 mm focal length, offered in 1.25″ or 2″ diagonal
- B3400 – Up to 3060 mm focal length, offered in 2″ straight-through tube
This Hydrogen-alpha filter is designed to retrofit (adapters required) a customer-supplied telescope for use during the day. It is easily removable so that the scope can continue to be used for night observing.
Because the LS60FHa has an estimated bandpass of <0.70 Angstrom, it is capable of providing high contrast views of both surface and edge detail. Adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50 (dependent upon scope) allowing for higher resolution viewing and/or imaging. An LS60FHa without blocking filter is offered for this purpose or for those who already have a Lunt blocking filter. A Lunt blocking filter must be used with Lunt Ha filters at all times.
LS60FHa Specifications: (single filter)
- Optical Aperture: 60 mm
- Etalon: Internal <0.70 Angstrom
- Tuning: Tilt
- Focal Length: Customer Telescope
- Storage: Aluminum finished hard case with fitted foam
- Weight: 3 lb (~1.5 kg)
| Blocking Filter | No Blocking Filter – SEE WARNINGS, 6mm Blocking Filter for 2" Focuser, 6mm Blocking Filter for 1.25" Focuser, 12mm Blocking Filter for 2" Focuser, 12mm Blocking Filter for 1.25" Focuser, 18mm Blocking Filter for 2" Focuser, 18mm Blocking Filter for 1.25" Focuser, 34mm Blocking Filter for 2" Focuser |
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Fast Shipping and Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide various shipping options. Our warehouse personnel will pack each item according to our strict requirements. Before they are shipped, your goods will be thoroughly examined and secured. Everyday, we send to thousands of clients in different countries. This is a sign of our determination to become the largest online retailer globally. The warehouses and centers for distribution are in Europe, as well as the USA.
Note that orders containing more than one item will be processed according to the specific item.
Before shipping before shipping, we'll inspect thoroughly the items you've purchased. Most orders are delivered within 48 hours. The estimated delivery time is between 3 and 7 days.
Returns
The inventory is always changing and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. Therefore, the actual inventory could change at any time. It's possible that your order will be unable to fill when you have placed the order.
Our policy is valid for 30 days. If 30 days have gone without a trace since the purchase and we are unable to offer an exchange or refund.
In order for your item to be returned it must be in its original packaging, unopened and in the same condition as when you received it in. It must also be in its original packaging.
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