This was not as easy as I thought. First of all, if you do have an ED80 OTA and it's an older model (mine was purchased in 2005), the dovetail Orion sells now for 20 bucks is not going to fit! I recommend this one from Scopestuff which is more robust and has plenty of slots in there to fit probably just about any scope. Plus it came with the proper screws and directions! I've never taken one of these refractors apart. It is kind of delicate inside and to get to the original screws holding the small mounting block you have to have small hands as the screws are set fairly far back in the tube! It's very easy to scratch the paint in there, so you have to be very careful. A long, thin needle nose plier can help, but if you have kids even better!
|Inside the ED80 refractor. Mounting screw holes can be seen at the bottom. One has been removed already. The far one is difficult to reach!|
|Final assembly showing the plate in place. The marker lines show the position of the dovetail rings for later repositioning back onto the Cave|
|Final assembly of refractor, homemade solar finder and HA filters mounted on Vixen Porta II|
|Homemade solar finder showing the Sun centered in the field|
|Close up of dovetail plate secured in the bracket|
We are now officially ready for Transit viewing. Next we need to test the camera to see how it behaves on this portable set-up!
And by the way, the forecast is still sunny for June 5th!