I liked your review. I also have a pair sold by ACME OPTICAL. When I
was talking to MR. ACME about them he stated that the retainer ring for
the lens were installed very tightly and could warp the lens and cause
problems with the star images at the edge of field. My pair was slightly
out of alignment which I easily fixed myslef so when I was doing that I
also loosen the rings. Boy were they tight ! Both sides come to a clean
focus and the star images are pretty tight to the edge. I was using them
last night and noticed that I could easily see the belts on Jupiter with
them. Maybe this is the problem with yours ?
I have changed the name of the optical store and the person in question - just to be courteous, since I didn't ask permission to post this.
Does this sound reasonable? I'm very reluctant to tinker with things I do not understand, so I would like some more opinions. I do have a problem (shortcoming?) with the clarity of my FOV, but from what I have heard, this is not that unusual for cheaper Chinese-made binocs like mine.
Is this worth a try? Or do I run the risk of making things much much worse?
Then, I read this in one of the reviews here on CN regarding an improvement to a pair 25x100mm Apogee binocs :
(by Eugene Artemyeff) http://www.cloudynig...=183&pr=2x48x60
I made a couple of cardboard 60mm aperture masks to see if the chromatic abberation could be lessened. I am pleased to report that the masks almost completely eliminated the yellow/purple at the edge of the moon. Lunar viewing is now superb. The craters and other features remain tack sharp and the absence of color is very satisfying. Likewise with Saturn. Where without the masks I could not even tell if there were rings or not, with them I can now make out the rings crisply on either side of the planet. The gap between the planet and the rings is clean and symmetrical. On Jupiter, using the aperture masks, I was able to eliminate all yellow hazing at the edges and was even able to see banding on the planet. This is definitely the way to go with these binoculars on bright objects.
What is an "aperture mask"?????
In the same review, I also noticed what looked like a red-dot scope or similar finder-type thing mounted on the binocs. What is this and what does it do?
Ok folks, I'm sorry, I keep editing this post and asking more questions, but I MUST know....