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Field Flatteners - Stellarvue Field Flattener For 480-700 Mm Telescopes And 2" Focuser - SFF6

Stellarvue Field Flattener for 480-700 mm Telescopes and 2" Focuser - SFF6

  • Vendor
    Stellarvue
    Sale price
    $195.00
    Regular price
    $195.00
    Unit price
    per 

    Availability:

    This field flattener is designed to work with our 480 mm focal length optical systems. This flattener is designed for cameras using APS-c sensor or smaller sensors. The flattener plugs into the focuser and a DSLR camera mounts to it using a standard photographic t-ring. CCD cameras will also work with this flattener but a threaded extension may be required.

    The Importance of proper spacing: The photographic field flattener must be placed at a precise distance from the camera’s internal ccd sensor. If the spacing is incorrect, the performance will be compromised. Our stock flatteners are made to work with DSLR cameras. The distance from the t-ring to the internal ccd sensor on a DSLR camera is about 55 mm. This distance from the thread on the front of the camera to the sensor is also known as its “backfocus.”

    camerasideview55mm240.jpg

    Non DSLR (ccd astro cameras) are not made to the same specifications. The distance from the thread on the front of the camera to the chip varies and if often much less than 55 mm.

    ccdcamerasideview240.jpg

    If the distance from the camera's chip to the front thread is less than 55 mm, you must purchase threaded extension tube(s) and/or spacer rings in order to maintain a distance of 55 mm from the back of the field flattener to the cameras sensor.

    This field flattener has a standard M42 X .75 t-thread attachment. Our selection of 42 mm extension tubes may be viewed here.

    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.

    Our 100% Price Guarantee has some limitations:

    • You must purchase the item from our website before requesting your Price Match Guarantee
    • Promotions such as rebates and buy one, get one free offers are not eligible
    • The item must be in stock on the competitors website
    • The competitor must be an online store, they may not have a retail location
    • The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
    • The competitor must be an Authorized Retailer of the product in question
    • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax

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