Skip to content
Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.
Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.

♦ Suitable for all 2" focusers, the corrector is completely sunken into the focuser

♦ Very good results with all popular refractors and apos of at least 70 mm aperture

♦ Generous working distance between 108 mm and 128 mm - enough space for accessories like off-axis guiders or filter wheels

♦ 2" filter thread for nebula filters at the telescope side

♦ No change of the telescope´s focal length

♦ Clear aperture of 45 mm without vignetting

♦ Camera side connection via M48x0.75 thread

♦ You get your individual adaption to the camera with the TSFLAT2A

♦ The adjacent photograph was taken with an 80 mm f/6 APO refractor and shows the very good sharpness in the field.

TS PHOTOLINE 2" Flattener and Field Corrector for Refractors

With the TSFLAT2, a professional field corrector for apochromats, EDs and normal Fraunhofer achromats is available to the astrophotographer. The corrector is suitable for refractors from f/4 to f/9. In comparison with other 2" correctors, the TSFLAT2 offers some advantages:

♦ Better illumination, even full-frame size sensors can be used.
♦ Generous working distance between 108 mm and 128 mm, depending on the focal length of the telescope.
♦ M48x0.75 - 2" filter thread at the telescope side for filters and at the camera side for further adaptions.
♦ Also visually usable, depending on the eyepiece. Often the sharpnesss in the field can be improved.
♦ Easy adaption vie 2" barrel - with the adapter package TSFLAT2A you get a complete adaptation from the flattener to the camera from Teleskop-Service.

The recommended distances from the M48x0.75 thread to the corrector

In principle this rule applies: the shorter the refractor´s focal length, the longer the working distance to the sensor has to be.

♦ focal length < 450 mm: 128 mm
♦ focal length 450-490 mm: 123 mm
♦ focal length 500-550 mm: 118 mm
♦ focal length 560-590 mm: 116 mm
♦ focal length 600-690 mm: 113 mm
♦ focal length 700-800 mm: 111 mm
♦ focal length ab 800 mm: 108 mm

An underrun or an overrun of the distance of up to 5% has no visible effect on the sharpness in the field of sensors with formats up to APS-C. With larger sensors, the tolerance is reduced to 1-2%.

You may also like

  • $154.00 USD - $154.00 USD
    $154.00 USD
    $154.00 USD - $154.00 USD
    $154.00 USD

    TS-Optics 1.0x T2 Flattener and Field Corrector - 2"

    TS-WiflatT2

    ♦ Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat, ...)♦ Connection telescope side 2" barrel with filter thre...

    View full details
    $154.00 USD - $154.00 USD
    $154.00 USD
    $154.00 USD - $154.00 USD
    $154.00 USD
  • $150.02 USD - $150.02 USD
    $150.02 USD
    $150.02 USD - $150.02 USD
    $150.02 USD

    TS-Optics 1.0x M48 Flattener and Field Corrector - 2"

    TS-WiflatM48

    ♦ Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat, ...)♦ Connection telescope side 2" barrel with filter thr...

    View full details
    $150.02 USD - $150.02 USD
    $150.02 USD
    $150.02 USD - $150.02 USD
    $150.02 USD
  • $281.00 USD - $281.00 USD
    $281.00 USD
    $281.00 USD - $281.00 USD
    $281.00 USD

    TS-Optics 0.79x Photoline Reducer Corrector - 2"

    TS-TSred279

    ♦ Reduction of the focal length 0.79x - exposure time goes to 62%♦ 3-element design with ED element for very good field correction♦ Easy telescope ...

    View full details
    $281.00 USD - $281.00 USD
    $281.00 USD
    $281.00 USD - $281.00 USD
    $281.00 USD
  • $210.00 USD - $210.00 USD
    $210.00 USD
    $210.00 USD - $210.00 USD
    $210.00 USD

    TS-Optics 0.67x Reducer for RC Telescopes - 2"

    TS-CCD47
    2 in stock

    The 2" CCD compressor reduces the focal length of telescopes with the factor 0.67x, thus allowing significantly shorter exposure times.♦ The focal ...

    View full details
    $210.00 USD - $210.00 USD
    $210.00 USD
    $210.00 USD - $210.00 USD
    $210.00 USD
  • $691.00 USD - $691.00 USD
    $691.00 USD
    $691.00 USD - $691.00 USD
    $691.00 USD

    William Optics x0.8 Reducer Flattener 7A

    WO-P-FLAT7A

    0.8x reducer/flattener for William Optics refractor telescopes Reduces focal length while correcting field curvature Description ...

    View full details
    $691.00 USD - $691.00 USD
    $691.00 USD
    $691.00 USD - $691.00 USD
    $691.00 USD