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UVenus - 1.25" Mounted Astrodon UVenus UV Filter

1.25" Mounted Astrodon UVenus UV filter

  • Vendor
    Astrodon
    Sale price
    $209.00
    Regular price
    $250.00 You save 16%
    Unit price
    per 

    Availability:

    <0.01%T 285-305 nm; <0.1%T 420 – 1100 nm Image the cloud structure of Venus and Jupiter with CCD cameras on a telescope. Use for general UV photography (flowers, insects, forensics). Astrodon introduces a breakthrough in UV filters for CCD imaging. A durable, hard-coated UV filter of the highest quality having the best transmission available. Image the cloud structure of Venus and Jupiter with CCD cameras on a telescope. Use for general UV photography (flowers, insects, forensics). The Astrodon-Schuler UV filter has traditionally been used for imaging Venus. It is made from several colored glasses, but only transmits ~ 65% of incoming UV light in the 300 – 400 nm region. Another vendor recently discontinued a 1.25" mounted UV filter due to NIR light leakage, but offers a 2" unmounted version that only reaches 80%T. Astrodon offers you both sizes and higher performance. Like the highest quality Generation2 Astrodon LRGB filters, the UVenus filter minimizes halos around bright stars. Astrodon UVenus filters are guaranteed to achieve >90% transmission. The actual scan below has an average transmittance of 98.2% from 325 – 381 nm, while minimizing out-of-band light leakage. This outstanding performance saves you time when imaging weak UV signals, while providing high contrast due to low light-leakage. You do not need a separate filter to block the NIR with the UVenus filter. ASTRODON UVENUS FILTER SPECIFICATIONS 1.25" mounted and 49.7 mm diameter unmounted 3.000+/-0.025 mm substrate thickness Single, striae-free fused silica substrate 1/4 wave substrate prior to coating < 0.5 arcminute parallelism before coating Hard coated to edge Guaranteed to > 90%T peak transmission (>94% typical) <0.01%T 285-305 nm; <0.1%T 420 – 1100 nm WARNING! This filter is NOT to be used for visual observations, specifically the sun or UV light sources.

    We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.

    To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.

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    • You must purchase the item from our website before requesting your Price Match Guarantee
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