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Lunt 60mm Ha Etalon Front Mount Double Stack Filter
Lunt 60mm Ha Etalon Front Mount Double Stack Filter
Lunt 60mm Ha Etalon Front Mount Double Stack Filter

Lunt 60mm Ha Etalon Front Mount Double Stack Filter

  • Vendor
    Lunt
    Sale price
    $1,595.00
    Regular price
    $1,595.00
    Unit price
    per 
    Shipping calculated at checkout.

    Availability:

    Estimated Arrival: Between Jan 26 and Feb 01. *ETA to USA Only

    Shipping & Returns: Free domestic shipping & 100% satisfaction guarantee. You can request a refund up to 30 days after delivery.

    Please note, the current lead time for this model is 2-3 weeks
    • LS60FHa H-Alpha Filter, 60mm front-mounted non-obstructed hydrogen-alpha filter for use on a wide range of telescopes!
    • Connect the Lunt LS60FHa to your telescope with the appropriate adapter (sold separately), or use it to double-stack on an existing Lunt 60mm LS60MT solar telescope or filter for a ~<0.5A band pass!
    • Choose the appropriate LS60FHa and blocking filter for your telescope’s focal length and focuser size.

    Required Accessories: Typically an adapter plate will be required to attach a Lunt Solar Filter to the front of a customer-supplied telescope. No adapter is needed to connect one LS60FHa to another for double-stacking.

    LS60FHa H-Alpha Filter

    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 H-Alpha Filter 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 H-Alpha Filter 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.

    Specs

    LS60FHa Specifications: (single filter)

    Optical Aperture

    60mm

    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)

    Shipping

    We know that once you've placed your order, you are anxious to receive it! We make every effort to get your order shipped out to you as quickly as possible.

    As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase. We will process the charges to your credit card and your order will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at info@telescopetek.com.

    Standard shipping time in the US is between 3-5 business days, though it can vary slightly depending on the destination. For updates on your shipment, you can enter your tracking number here.

    We are happy to offer FREE domestic shipping on all orders! Unfortunately, at this time we are not able to provide expedited or international shipping.  

    Returns & Refunds

     

    We have a 30-day return policy, which means that in the case that your order arrives broken or defective, or if you simply change your mind about your purchase, you have 30 days after receiving your item to request a return. Returns requested after 30 days of receiving your order will not be accepted. Refunds will be issued to the original credit card that you use when placing your order.

    To be eligible for a return, your item must be in the same condition that you received it. 

    To start a return, please contact us at returns@telescopetek.com to receive a prepaid return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 

    We will notify you once we’ve received and inspected your return and at this point, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

    You can always contact us for any return questions at returns@telescopetek.com