Teleskop Service 1.0x Flattener/Corrector for Refractors - 2-inch Connection

The Teleskop Service TSFLAT2 provides the astrophotographer with professional-grade field correction for APOs, EDs, and other refractors. Suitable for refractors from f/4 to f9.

Compared to other 2-inch Correctors:

• Better illumination even with full-format sensors.
• Generous working distance between 108mm and 128mm, based on telescope's focal length.
• M48x0.75 to 2-inch filter thread connection available.
• Can be adapted for visual setups. 

Recommended Working Distance by Focal Length:

• Less than 450mm Focal Length = 128mm
• 450-490mm Focal Length = 123mm
• 500-550mm Focal Length = 118mm
• 560-590mm Focal Length = 116mm
• 600-690mm Focal Length = 113mm
• 700-790mm Focal Length = 111mm
• 800mm Focal Length = 108mm

Falling below or exceeding the distance by up to 5% has no visible effect on the field sharpness with sensors up to APS-C format. With larger sensors, the tolerance is reduced to 1-2%.

• Fits in all 2-inch focusers
• Great results with all refractors above 70mm aperture.
• Generous working distance

• Teleskop Service 1.0x Flattener/Corrector for Refractors - 2-inch Connection