Hi All,
I have been a little obsessed lately with wide field views through the BVs. Before I went out and spent money on something new I tried some combos with correctors that I had on hand and came up with something that I didn't expect. I have a Siebert Multi-Mag OCA and a Siebert 0.6x focal reducer that screws into the BV nosepiece. The BVs I used are BW Optiks. I took the OCA configured for 1.5x and screwed it into the front of a 1.25" TV diagonal. I put the focal reducer into the BV and into the diagonal. I was using an Orion 80ED and a pair of 32mm Plossls. I measured the exit pupil at 5mm. This indicates a 0.85 increase in the eyepiece focal length to 37.5mm. The view seemed to soften at the very edge but I haven't tried it at night yet to see exactly how good or bad this is going to be. Too much time on my hands?
Clear Skies,
Steve
I have been a little obsessed lately with wide field views through the BVs. Before I went out and spent money on something new I tried some combos with correctors that I had on hand and came up with something that I didn't expect. I have a Siebert Multi-Mag OCA and a Siebert 0.6x focal reducer that screws into the BV nosepiece. The BVs I used are BW Optiks. I took the OCA configured for 1.5x and screwed it into the front of a 1.25" TV diagonal. I put the focal reducer into the BV and into the diagonal. I was using an Orion 80ED and a pair of 32mm Plossls. I measured the exit pupil at 5mm. This indicates a 0.85 increase in the eyepiece focal length to 37.5mm. The view seemed to soften at the very edge but I haven't tried it at night yet to see exactly how good or bad this is going to be. Too much time on my hands?
Clear Skies,
Steve
