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    Sale!
    Telescope-Accessories-Apertura 2" Dark Frame Filter
    Telescope-Accessories-Apertura 2" Dark Frame Filter - Image 2
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    Home / Astro Photography / Accessories

    Telescope-Accessories-Apertura 2″ Dark Frame Filter

    • Telescope-Accessories-Apertura 2″ Dark Frame Filter 6
    • Telescope-Accessories-Apertura 2″ Dark Frame Filter 7

    $19.29 Original price was: $19.29.$13.50Current price is: $13.50.

    87 in stock

    Categories: Accessories, Astro Photography Tags: Accessories, Apertura 2" Dark Frame Filter, arecibo telescope, hubble telescope pics, keck telescope, kepler telescope, sky telescope, Telescope, telescoping extendable ladder, who invented the telescope
    • Telescope-Accessories-Apertura 2″ Dark Frame Filter 8
    • Telescope-Accessories-Apertura 2″ Dark Frame Filter 9
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    • Overview

    Capture Your Calibration Data With Ease!

    Add calibration collection convenience to your setup! Designed to install alongside your
    favorite filters, the Apertura 2″ dark frame filter makes collecting dark
    frames as simple as a quick command to your filter wheel. Whether you’re
    orchestrating your astrophoto creation from a remote command center or with an
    automated script, this calibration companion is for you!

    While capturing image data is the most important step in the process of
    creating an astrophoto, collecting calibration frames help ensure you can make
    this information shine its brightest; removing imperfections in the optical
    train or inherent to your gear from the final image! While capturing a dark
    calibration frame can be as simple as placing the dust cap back on your
    telescope, coordinating this when your scope is out of reach or operating
    under automation can be a challenge. That’s where the Apertura 2″ Dark Frame
    Filter comes in! Simply installing this filter into your filter wheel allows
    you to block on the night sky for dark calibration on fly or queued up as a
    part of your automation script. The Dark Frame Filter’s black anodized metal
    provides robust light blocking, while also being slim enough that it will fit
    in most popular 2″ filter wheels on the market today; coming in at just 3.5 mm
    when fully installed, and taking up just 49.7 mm in diameter. Combined with
    threads compatible with the common 2″ filter threads used by the industry
    today, the Apertura Dark Frame Filter can be installed right alongside your
    existing filters without any headache!

    Apertura 2 inch Dark Frame Filter
    Apertura 2 inch Dark Frame Filter turned upside down

    Giving Your Image a Boost: Dark Frame Calibration

    What is a dark frame? How does it improve your final images? Simply put, a
    dark frame captures some of the imperfections the camera sensor adds to your
    images. Collecting this information is done by collecting an image of an even,
    dark, surface, highlighting these imperfections and allowing you to suppress
    them in post processing. While camera technology is constantly improving to
    control noise, amp glow, and hot pixels in your light frames, when you’re
    looking to create images that “pop” there is still a notable benefit from
    adding calibration information to your data set! For more information about
    dark frames and other types of calibration files, be sure to check out our
    article on
    Understanding Calibration Frames!

    Image processed without dark calibration frames
    Image w/o Dark Calibration
    Image processed with dark calibration frames
    Image w/ Dark Calibration

    Add Dark Frame Automation to Your Imaging System

    With its design and solid construction, the Apertura 2″ Dark Frame Filter is a
    simple but effective way to add convenient or automated dark frame capture
    capability to your filter wheel setup! With this accessory in your tool kit,
    running out to put the cap on your scope or installing motorized dust cap
    solutions to collect darks are a thing of the past!

    The Apertura 2 inch Dark Frame Filter overlaid on a dark frame

    Dark Frame Capturing Simplified
    If you’re looking to
    switch to dark calibration frame capturing with the tap of a button in your
    filter wheel rig, there’s no need for extra external equipment! Just install
    this simple filter plug in your carousel, and cutting your camera sensor off
    from the night sky is as simple as any other filter position change. This is
    perfect for remote imaging from your backyard or at a dedicated remote
    observatory, and with the automation tools provided by modern imaging suites
    can even allow you to capture darks automatically and have them waiting for
    processing when you check imaging files in the morning!

    Electronic filter wheels that work with the dark frame filter

    Wide Compatibility
    When it comes to compatible
    electronic filter wheels for the Apertura 2″ Dark Frame Filter, you’ve got
    plenty of options! This includes the
    ZWO 7 Position Electronic Filter Wheel for 2″ Filters
    and
    QHY CFW3 Medium Color Filter Wheel – 50 mm or 2″ 5 Position – Standard
    Thickness
    . For more information on how to integrate filters into your imaging train,
    be sure to check out our
    Astrophotography Filter Connection Guide. Please Note: All accessories sold separately.

    Close up of the Apertura 2 inch Dark Frame Filter

    Solid Construction
    The Apertura 2″ Dark Frame Filter
    is a robust option that is designed to last. Made of 1.0 oz. of black
    anodized aluminum, this filter comes in at 6 mm thick including the threads;
    which comes out to 3.5 mm excluding the threads, when this filter is
    installed. The top has been gently sculpted to help with grip when you’re
    removing the filter, with an additional slot cut for a coin to be used in
    situations where in may be difficult to grip the filter or where you need
    additional leverage!

    Image of Apertura Logo, with text Apertura Absolute Warranty

    Comes with the Apertura Absolute Warranty!
    The Apertura Absolute Warranty provides two years of coverage against
    product defects. After the initial two-year warranty expires, this product
    qualifies for Apertura’s Three-Year Accident Replacement Program. In
    addition, the Apertura Absolute Warranty is transferrable! Download a copy
    of the
    Apertura Absolute Warranty
    for more information on this program, how to make a claim, and why it is
    important to keep your original receipt and the product’s original
    boxes & packaging!

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