I find this very strange, an eyepiece I find perfect one day, is difficult to use on other day.. especially for moon observation. I mainly use 4 eyepieces for the moon.
- 6mm HD OR fujiyama
- 5mm HD OR fujiyama
- 6mm Delos
- 4.7mm ES 82
There is a real battle between the 6mm Delos and the 6mm Fujiyama. The 5mm and 4.7mm, I use them much less because of atmospheric limitations, (I don't really like the 5mm). During my last observations, I took the 6mm Delos out and had troubles.
#1. Fatigue on my eye, some kind of weird eye strain, I get that with the 4.7mm also.. same thing as trying to see through a pair of glass at the wrong power, you know?
#1. Eye placement
#2. Excess of brightness
The last 4 observations it was much easier for my eye to use the Ortho 6 even with the tight eye relief. I think it's letting less light in? But the before.. it was different with the Delos. Could it be because of age (40) deterioration of vision? Perhaps just one bad day for the eyes too.. don't know.
Edited by N3p, 14 May 2022 - 12:26 PM.