Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter

Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter

Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter

B&H # LU50HATB400 MFR # LS50THA/B400PT
Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter

Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter Angle View

Angle View

Show MoreLess

Close

Now Viewing:

In Stock
Order in the next 0:00:00 to Ship Today

Product Highlights

  • 50mm Objective
  • 350mm Focal Length, f/7 Focal Ratio
  • Hydrogen-Alpha Solar Filter
  • <0.75 Angstrom Bandpass
  • True Doppler Tuning
  • 4mm Star Diagonal Blocking Filter
  • 1.25" Helical Focuser
  • Integrated Mounting Base
Show moreShow less

Blocking Filter: B400 Blocking Filter

B400 Blocking Filter B600 Blocking Filter
Man Behind Layer

B&H $1000 Giveaway

Share your most-wanted item with friends & family for chances to win a $1000 B&H Gift Card. It's that easy!

1 new winner announced every week!
Limit 1 entry per day; Come back every day to increase your chance of winning!

Be sure to mention #BHWishList when you share!

Share on Twitter Share on Facebook

Congrats to our winners so far — Lauren K. & Daniel M.

Official Rules

OFFICIAL B&H $1,000.00 GIVEAWAY RULES

NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $1,000.00 Giveaway (the "Giveaway" or "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about November 7, 2016 until on or about December 19, 2016 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share your most wanted item on Facebook or Twitter via the dedicated links found on the B&H Website (www.bhphoto.com); or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $1,000.00 Giveaway, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third-party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total three (3) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $1000.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize to the e-mail address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the e-mail account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An e-mail account holder shall mean the natural person assigned to such e-mail account by the internet access or online service provider or other organization responsible for assigning e-mail addresses for the domain associated with such e-mail account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $1,000.00 Giveaway Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $1,000.00 Giveaway, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

Let us know how to reach you if you win!

Privacy 100% guaranteed; email address for contact purposes only

Email

Already have a B&H account? Just log in tomorrow to enter again!

$0.00 Tax Collected Outside NY

You Pay: $849.00

Add to Wish List Item in Wish List
  • 1Description
Lunt Solar Systems' LS50THa 50mm f/7 Refractor Solar Telescope is ideally suited for beginner solar observers or as a grab-and-go option for fast sessions. It features a 50mm objective lens and an internal etalon with a <0.75 Angstrom bandpass. The scope is offered here with a 4mm blocking filter in a star diagonal configuration. It fits in the helical focuser and accepts 1.25" eyepieces for visual observation.

Integrating the etalon into the optical path reduces interference and distortion which can occur with externally mounted filters. True Doppler Tuning allows for a shift into and away from the user for a richer depth of field. While looking at a filament at the center of the Sun, the user has the ability to Doppler shift from the base of the filament to the tip, following the filament through its structure toward and away from them, allowing for enhanced visual and imaging capability.

Complementing the optical performance and technologies is a 1.25" helical focuser. This type of focuser has a rotating collar around the filter holder in place of the focusing tube which reduces the overall length of the telescope while maintaining the ability to achieve a fine focus. This solar scope is offered here without a mount or tripod, but is outfitted with a mounting base that has a 1/4"-20 thread for attaching it to most tripods or compatible mounts.

Optical Performance
  • 50mm aperture
  • f/7 focal ratio
  • 530mm focal length
  • Refractor-style optical path
  • Internal etalon with tune adjustment allows for a <0.75 Angstrom bandpass at 656nm
  • True Doppler Tuning allows for a shift into and away from the user for enhanced viewing
Blocking Filter
  • Use for visual observation only
  • 4mm aperture
  • Fits into focuser and accepts 1.25" eyepieces
  • Star diagonal configuration
Focuser
  • 1.25" diameter
  • Helical design focuses by turning collar
  • Reduces obstructions and simplifies use
UPC: 814393021401
In the Box
Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter
  • 4mm Blocking Filter
  • 2 x Dust Cap
  • Limited Five-Year Warranty
  • Table of Contents
    • 1Description
    Objective Diameter 50mm
    Focal Length 350 mm
    Focal Ratio f/7
    Bandwidth <0.75 Angstrom at 656 nm
    Finderscope None
    Mounting Integrated mounting base with 1/4"-20 thread
    Length Not specified by manufacturer
    Weight Not specified by manufacturer
    Packaging Info
    Package Weight 8.8 lb
    Box Dimensions (LxWxH) 22.9 x 15.8 x 9.4"

    Lunt Solar Systems LS50THa 50mm f/7 Refractor Solar Telescope with 4mm Blocking Filter Review

    Be the first to review this item
    See any errors on this page? Let us know.