Baader Adapter for large CCD cameras like e.g. SBIG STL-11000M or STL-6303E in connection with TEC FF or AP FF
| The TEC Field Flattener (FF) has been designed for correcting field curvature and off-axis astigmatism of the TEC APO140. The camera end of TEC FF has the same dimensions and design as Astro Physic's (AP) Field Flatteners. The distance from TEC FF's base plane to the focal plane is exactly 85 mm. | |
|
|
|
| Currently, there isn't a specific adapter for the correct distance. The AP CCD adapter A1261 and ADA2003 gets them within about 5mm of the ideal spacing of 85 mm. An other solution is this adapter, developed by Baader-Planetarium (Germany) | |
|
|
|
| TEC FF and Baader 2" Adapter | |
|
|
|
| Perhaps it is interesting for some people. There is not vignetting in connection with TEC FF and STL-11k. Here, it is a reduced raw image imaged unter 72 % moonlight: | |
|
|