I have recently purchased an older (about 1985) Vixen fluorite. The images are very good with the diffraction patterns on either side of focus very close to identical once the scope cools down. There is some color present as sparkles with bright stars in turbulence and a little color fringing of defraction patterns outside of focus.
My question. The lenses in the lens' mount have a little "play" in them. They literally move a little when the scope is moved--I have heard a clicking sound and have seen the movement in daylight while looking at the objective. Is this normal for an older Vixen? I can not see anything in the images affected by this looseness.
Thanks,
Daniel
My question. The lenses in the lens' mount have a little "play" in them. They literally move a little when the scope is moved--I have heard a clicking sound and have seen the movement in daylight while looking at the objective. Is this normal for an older Vixen? I can not see anything in the images affected by this looseness.
Thanks,
Daniel