ZWO LRGB Filters-1.25-inch

View Cart “IR 850nm Pass Filter – 1.25″” has been added to your cart.

$88.00

LRGB filters optimized for high precision astrophotography and correct colours for all types of objects.

SKU: ZWO LRGB1.25 Category:

Product Description

zwo-lrgb-filters1-460x460

ZWO LRGB Set

  • Schott substrate material
  • Glass thickness 1.1mm
  • Fine-optically polished to ensure accurate 1/4 wavefront
  • 90% transmission at passband
  • Infrared wavelength 700-1100nm cut-off
  • Precision off-band blocking
  • Multi-layers anti-reflection coating

 

here is the the transmission curve

LRGB-20150308

Shipping

It will take around 60-90 days for shipment via ePacket/China Post Registered Air Mail/EMS, which can’t be guaranteed due to force majeure.

  • Fast Shipping(amount ≧ 199USD) for free
  • Fast Shipping(amount < 199USD) : $20.00 (We do not provide free shipping from now on.)

If you can’t get the air mail package after 2months, please let us know ASAP: info@zwoptical.com

Introduction

  1. Fast Shipping: we will choose DHL, UPS, FedEx etc to deliver it. Usually you will get your package within one month.
  2. Customers from Brazil and Chile should leave a message to provide your CPF or CNPJ as your custom needs it.
  3. Customers from Russia need to provide the complete English name with three words as well as the English shipping address.

Tracking site

DGM: http://webtrack.dhlglobalmail.com/?locale=en-US

China air mail: http://www.17track.net/en

 

Tax

  • The price list on our website is USD without tax.
  • Please note that buyers are liable to pay tax involved, such as Import tax, VAT , customs handling fee, etc. The additional fees may be collected at time of delivery by courier.
  • For best local service we advise customers buy our cameras form local dealers.

Warranty and Return Policy

  • We provide 2-year warranty for our products, we will offer the repair service for free within warranty period. After the warranty period, we will continue to provide repair support and service on a charged basis. We do not provide any replacement unless ZWO confirmed the product is DOA (Dead On Arrival).
  • This warranty does not apply to damage that occurred as a result of abuse or misuse, or caused by a fall or any other transportation failures after purchase.
  • Customer must pay for shipping when shipping the camera back for repair or replacement. If we confirm you can get a replacement, goods must be returned with all accessories, instructions, etc and must be suitably packed.
  • If you get a faulty camera, please contact us as soon as possible though email: info@zwoptical.com. Please describe the problem in detail and we will do our best to help you solve the problem. Most instances perceived problems are simply bad driver install or software configuration.
  • We will provide you RMA number if your camera requires warranty repair. We refuse any return without RMA number!
  • For customers who bought the camera from our dealer, dealer is responsible for the customer service for you.

Do you have question, answer or comment? Post here!

  1. Avatar

    :

    Hi, are these dichroic/interference of absorptive?

    Thanks
    Minos




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    • Avatar

      :

      Theoretically, no, but actually they are absorptive.




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  2. Avatar

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    Hello!
    Why is the transmission curve of these filters not reaching the ultraviolet?
    Are these filters suitable for shooting planets on a monochrome camera ZWO ASI 120MM?

    P.S. By the way, thanks for the nice camera!




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    • Avatar

      :

      The camera efficiency does not have too much difference in UV.
      Yes these filters can be used.
      Thank you for supporting us!




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  3. Avatar

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    To what focal ratio are these filters parfocal to? What are the tolerances of the filter thickness?




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    • Sam Wen

      :

      the tolerances of the filter thickness is around 0.05mm
      parfocal depends on optics




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  4. Avatar

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    Would these 1.25 filters work well with the ASI290MM on an Edge C11?




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    • Sam Wen

      :

      of course




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  5. Avatar

    :

    hello , i am interested in buying this filter set but I am confussed with the curves of G and R color.. it seems to cut some wavelengths near the Na/Hg region …but not in the center of these lines..what is going on?
    What the deference of these filters and Asi1600-LRGB set?
    thank you in advance




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    • Sam Wen

      :

      this is recommend for planetary imaging
      but the new one is for DSO imaging




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  6. Avatar

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    Is it possible to view data on the % Transmittance and Passbands by wavelength for these filters?




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    • Sam Wen

      :

      just updated the description include more detail




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  7. Avatar

    :

    Hi Sam,

    Are these filters parfocal or some focus adjustement is needed for RGB imaging?

    Thanks in advance!




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    • Sam Wen

      :

      Yes, they are the same thickness 1.1mm and parfocal




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  8. Avatar

    :

    Would I still require a uv/ir filter with these




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    • Sam Wen

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      no, the L filter = IR/UV_CUT filter




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  9. Avatar

    :

    Plase let me know the thickness of glass.




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    • Sam Wen

      :

      it’s 1.1mm thickness




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