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 - 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
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%.
Delivery contents Products specifications
| Unobstructed diameter | 45 mm |
| Magnification | 1.0 x |
| Filter thread | 2" / M48 |
| Coating | multi coating |
| Connection to telescope | 2" and M48x0,75 female thread |
| Connection to camera | M48x0.75 external thread |
| Backfocus | between 108 mm and 128 mm |
| Weight | 93 g |
| Made for | Refractor telescopes from f/4 to f/9 |
