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Shop / svbony optical lens filter

1.25 CLS Telescope Filter for City Light Pollution Reduction in Deep Sky Visual Astronomy and Photography

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$ 29.99   $22.49   save 25%
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About this item

  • Utilizing ion assisted deposition coating technology for durability, scratch resistance, and stability on CWL (central wavelength) against temperature changes
  • Incorporating a planetary rotation system for precise, homogeneous coatings that enhance pass-band transmission and off-band Optical density
  • Achieving 90% transmission of key nebula emission lines like Ha 656nm, OIII 496nm, 500nm, SII 672nm, and H-beta 486nm
  • Maintaining 0.1% transmission of off-band, specifically major emission lines of artificial light pollution including Na 589nm, Hg 435nm, and 578nm
  • Designed for color CCD cameras and unmodified DSLRs, the Urban optical filter effectively minimizes harmful urban light and enhances shooting target contrast

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If for any reason you are not satisfied with the purchased item,You have 30 days after delivery of your order to return an item.

After 30 days of delivery of your order, we will no longer accept returns.

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To request a return,please email us at:[email protected] ,We will respond within 24 hours after the consumer sends the email (except weekends).
If it is a quality issue, please provide an order number and attach clear photos of the items that represent the issue.
After we receive the returned order, our Quality Assurance department will inspect and verify the condition of the item.Upon acceptance of your return, a refund will be issued to the original form of payment within 1-3 business days.

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The time frame for return must not exceed 30 days from when the original order was received.
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Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

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