TS PHOTOLINE 3" flattener for refractors by TS, Astro Professional oand raz William Optics z 3-inch focuser. Clear aperture of 68mm is suitable even for full frame sensors.
 
Flattener PHOTOLINE by Teleskop-Service provides flat field needed for astrophotography with large sensors without changing the focal length of the telescope. Mount type: thread.

Recommended specially for:
 
• William FLT APOs FLT 98, 110 and 132 (3,5" focuser)
• Astro Professional Triplet APO 115 and 130 (3" focuser)
• TS Triplet Apo 102mm, 115mm and 130mm
• TS PHOTOLINE ED APO Deluxe with 3" focuser
• TS Individual 152 Rich Field Refractor