Alan Gee 35mm Photography Configuration
The above schematic shows the layout required for using the Alan Gee II for 35mm photography at f/5.9. The following part will be required, in addition to those supplied with the Alan Gee Mark II Telecompressor. Note: the thin plastic spacer ring is used to fully center and clamp the Alan Gee into place. If you are using a larger SCT (Celestron 11/14 and Meade 10/12), you should mount the telecompressor and the short T-adapter to the SCT reducer plate with the plate off of the telescope and held out horizontally. This will help you to see when the spacer ring and telecompressor are properly centered and seated (if installed with the reducer on the scope and the scope horizontal, it may be possible to get the telecompressor to be mis-located and clamped off center).
- Short T-Adapter (order # T2-21)