B3400 Blocking Filter Straight thru
B3400 Blocking Filter A-part A
B3400 Blocking Filter Lunt Solar Telescopes
B3400 Blocking Filter A-part B

Lunt B3400 Blocking Filter

Code: B3400S2
  • A Blocking Filter is a required component when using any Lunt solar filter or solar telescope products.
  • The housing contains additional filters that are needed for safety when viewing the Sun.  Do not use a Lunt Solar Systems telescope or filter without a Lunt brand blocking filter.
  • The B3400 Blocking Filter is recommended for telescopes with focal lengths of 3400 mm when used visually, and 1800 mm when used for imaging applications.
  • The 34 mm blocking filter is housed in a 2″ straight-through housing.

Please Note: If this product shows “Available on Backorder” and you would like to “get in line” by placing an order with a 10% deposit, send us an email. A member of our staff will contact you with lead times and deposit information.

Estimated lead time: 1 month

$1,798.00

Available on backorder

Available on backorder

Share (0)
Total: 0 Total: 0 Total: 0 Total: 0 Total: 0 Total: 0

Description

B3400 BLOCKING FILTER ARE REQUIRED ON ALL LUNT SOLAR TELESCOPES

The Lunt Solar Systems B3400 Blocking Filter is housed in a 2″ straight-through extension tube with 2″ and T2 connections. Like all Lunt blocking filters, the B3400 houses additional filters. Significantly, this is required for the safety and performance of the solar package. It’s important to realize that Lunt Solar blocking filters contain a unique filter system. Furthermore, we can only warranty safety or performance when one of our blocking filters is paired with a Lunt H-alpha filter or telescope.

The B3400 is best for visual work on telescopes with focal lengths up to 3400 mm, and for imaging work on scopes with focal lengths of up to 1800 mm.

BLOCKING FILTERS ARE REQUIRED ON ALL LUNT SOLAR SYSTEMS

See the latest news about the Sun at NASA.

Check out our great selections of Solar Telescopes.

Additional information

Weight 2 lbs
Dimensions 8 × 8 × 6 in

Reviews

There are no reviews yet.

Be the first to review “Lunt B3400 Blocking Filter”

Your email address will not be published. Required fields are marked *

Related products

    Solar Products

    Polarizing Filters for White Light Wedges
    • A Polarizing Filter will help control the brightness of the Sun’s image when using a Lunt White Light Wedge visually.
    • Choose either a 1.25″ or 2″ Polarizing Filter, whichever size matches the barrel of your eyepiece.
    • If this product shows “Available on Backorder” and you would like to “get in line” by placing an order with a 10% deposit, send us an email. A member of our staff will contact you with lead times and deposit information.
    (0 reviews)
    $39.95 – $44.95 Select options
    Solar Products

    Lunt Solar SUNsafe Certified Kid Size Eclipse Viewing Glasses – 100 Pack

    Smaller sized eclipse glasses for little ones ages 7-13 years of age. With adult supervision, these kids eclipse glasses are perfect for budding scientists, astronomers and any child who wants to be a part of the excitement of these rare events.

    Lunt Solar Eclipse SUNglasses are manufactured in Germany and are 100% safe for direct viewing of the Sun and Solar Eclipses.

    We have been approved by NASA and the American Astronomical Society.

    Don’t let you, your family, your friends, and/or your local fundraising group be left in the dark during the next partial eclipses.

    (0 reviews)
    $69.95 Add to cart
    Solar Products

    SUNoculars 8×32 YELLOW

    The Lunt 8 x 32 White Light SUNoculars..

    With this pocket sized instrument you can view and safely study Eclipses, Planetary Transits, and Sun Spot activity/magnetic storms.

    Compact, Lunt SUNoculars have a front mounted fully dense white light glass filters making Solar observation 100% safe.

    These front filters are precision polished to ensure the highest level of viewing quality.

    The light of the Sun is reduced to a comfortable 1×10-5 transmission and all ultra-violet and infrared components are completely and safely blocked.

    Lunt SUNoculars are manufactured to the same standards of safety typical to the entire family of Lunt Solar products – the premier manufacturer of Solar telescopes and filters.

    ORDER NOW!!

    (0 reviews)
    $79.95 Add to cart
    Solar Products

    SUNoculars (mini) RED
    The Lunt 6 x 30 White Light SUNoculars (mini)..
    Perfect for kids 13 yrs ADULT SUPERVISION RECOMMENDED!
    Truly a pocket sized instrument that you can use to view and safely observe all partial phases of a Solar Eclipse.
    Ultra-compact, Lunt SUNoculars-mini have front mounted filters making Solar observation 100% safe.
    These front filters are manufactured from CE certified film to ensure the highest level of viewing quality.
    The light of the Sun is reduced to a comfortable 1×10-5% transmission and all ultra-violet and infrared components are completely and safely blocked. The Sun will appear as a pleasant orange color.
    Lunt SUNoculars-mini are manufactured to the same standards of safety typical to the entire family of Lunt Solar products – the premier manufacturer of Solar telescopes and filters.
    (0 reviews)
    $14.95 Add to cart