Tele Vue Tunable Top (2 inch with 1.25 inch adapter)

$259.00

AUD Price shown includes GST
GST is removed at checkout for NZ

SKU: ATT-2125
Conditionnew

Out of stock. For Availability Call 02 9518 7255 or email sales@bintel.com.au

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    Tele Vue Tunable Top (2 inch with 1.25 inch adapter)

    Newtonian / Dobsonian telescopes can benefit from using a Tele Vue Paracorr (Parabola Corrector) to eliminate coma in the image. One aspect to optimizing this correction is the distance of the eyepieces focus point (field stop location) to the last surface of the Paracorr lens (within a small +/- tolerance of course). Typical eyepieces used with fast Newtonians can have field stop locations differing by as much as half an inch. To accommodate for the differences, we developed the “Tunable Top.”

    The “Tunable Top” permits optimized aberration control for all Tele Vue eyepieces and many others, by simply loosening a screw and rotating the Tunable Top. The eyepiece barrel height raises and lowers, allowing you to maintain the proper field stop to Paracorr lens distance.

    Tele Vue Tunable Top (2 inch with 1.25 inch adapter)
     Optimizing Coma Correction by using the Tele Vue Tunable Top for Paracorr

    As you’ve read, all Newtonian / Dobsonian telescopes can benefit from using a Tele Vue Paracorr (Parabola Corrector) to eliminate coma in the image. One aspect to optimizing this correction is the distance of the eyepieces focus point (field stop location) to the last surface of the Paracorr lens (within a small +/- tolerance of course). Typical eyepieces used with fast Newtonians can have field stop locations differing by as much as half an inch. To accommodate for the differences, we developed the “Tunable Top.”

    The “Tunable Top” permits optimized aberration control for all Tele Vue eyepieces and many others, by simply loosening a screw and rotating the Tunable Top. The eyepiece barrel height raises and lowers, allowing you to maintain the proper field stop to Paracorr lens distance.

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