Agena's popular 2" UWA (Ultra-Wide Angle) 20mm and 30mm eyepieces feature an integrated M49 male thread under the eyeguard. Using this adapter, you can connect your D/SLR camera to these eyepieces for direct projection photography through the eyepiece. An additional camera-specific T ring (not included) will also be required. In this configuration, the setup will be:
Eyepiece > M49-T2 Adapter (this item) > T-ring > D/SLR Camera
This adapter features a female M49 thread on one side and a male T / T2 thread on the other side. It is made of aluminum and black anodized. Please note that this adapter is only meant to be used with specific Agena UWA eyepieces as mentioned above. It will not work with any other eyepiece that does not feature an integrated M49 male thread.