TS-Optics Maxfield 0.95× 2-inch coma corrector The Maxfield is a three-element modified Wynne coma corrector for Newtonians of f/4 and slower. It slightly reduces the focal length by a factor of 0.95×. The manufacturer requires at least 60 mm native focuser backfocus.
Manufacturer model: TS-Optics Maxfield 0.95× 2-inch coma corrector · Specifications checked against manufacturer data on 2026-11-04
The Maxfield is a three-element modified Wynne coma corrector for Newtonians of f/4 and slower. It slightly reduces the focal length by a factor of 0.95×. The manufacturer requires at least 60 mm native focuser backfocus.
Use 55 mm from the M48 × 0.75 camera thread to the sensor. The camera thread is 4.5 mm long; a 2-inch filter thread is provided.
The manufacturer specifies full illumination to 35 mm diameter and a corrected usable field to 45 mm with 93% illumination. The 2-inch insertion barrel is 72 mm long; its removable stop ring is 65 mm across. Weight is approximately 230 g.
TS-Optics manufacturer documentation
Exact named TS manufacturer model and its published technical table checked. Unpublished dimensions, capacities and package items are not inferred.
| 2 filter thread | yes |
|---|---|
| 100 illumination | 35 mm |
| Usable field | fully corrected up to 45 mm and also well illuminated (93%) |
| Stop ring | 65 mm outer diameter, removable |
| Barrel size at the telescope side | 2" |
| Elements | Modified 3-element Wynne system |
| Length of the 2 barrel | 72 mm |
| Minimum native focuser backfocus | 60 mm |
| Fully illuminated field | 35 mm diameter |
Data sheet
Specific References