TS Optics PHOTOLINE 2" 1.0x Flattener for Refractors and Apos
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. Advantages over other 2" correctors
Recommended distances from the M48x0.75 thread to the corrector
Clear aperture of 45 mm without vignetting, 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, the sharpness in the field is significantly improved.
Easy adaption vie 2" barrel - with the adapter package TSO-TSFLAT2A you get a complete adaptation from the flattener to the camera from Teleskop-Service.
Suitable for all 2" focusers, the corrector is completely sunken into the focuser
- Inner blackening and anti-reflex thread
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%.
Corrects the field of refractors and allows astrophotography with perfect sharpness at the edge