Wednesday, October 2, 2013

Eyepiece Projection Continued

Because the 26mm eyepiece does not fit in the Meade basic camera adapter, and the 9.7mm eyepiece has too much light loss in my modest Meade ETX-90EC, I purchased a 15mm eyepiece. This eyepiece fits comfortably in the adapter. Less magnification than the 9.7mm eyepiece, of course, but therefore also less light loss.

Below already a quick result (taken at dawn) together with two pictures from the September 7 posting (taken during the day) for comparison. The slight curvature in the picture is a bit worrisome, still have to look more into that. Can't wait though to try some real astrophotography with the new eyepiece.

prime focus (rear port)

9.7mm eyepiece projection (adapter)
15mm eyepiece projection (adapter)