Hermann
Well-known member
There are several problems with this IMO:H., Y., others: Has this instrument shown more detail, or shown very fine detail better, than a 7x which you have used alongside, in a side-by-side test, handheld, in the field, done by you?
- The amount of detail you can see through a pair of binoculars depends, at least to some extent, on the light and the particular transmission characteristics of a binocular. In other words: The results of a comparison between two different binoculars may be different in different light conditions.
- "Very fine detail" isn't a well-defined entity. There's a big difference between, say, the patterns on an USAF chart and the intricate plumage pattern of a bunting. I assume you're mostly interested in plumage patterns.
- The value of any handheld comparisons is doubtful when it comes to resolution (or the detection of "very fine detail", as you put it), simply because you inevitably lose detail due to physiological tremor. This also means that any binocular one particular observer can hold steadier than another binocular will have a "better result". I myself, for instance, find I can hold a binocular weighing ~800 gr. steadier than lighter or heavier binoculars.
- There may be huge differences between different binoculars as soon as you look at the areas outside the sweetspot. I assume you meant if there were differences in the image centre, not somewhere closer to the edge.
That said, I did compare the APM in the field against the binoculars I mentioned (i.e. a Habicht 7x42 and a Leica 7x42 BA) and the other two 7x binoculars I have, a Nikon AE 7x35 and a Baigish/Komz 7x30. The APM did show more fine detail than the Leica and the Action Extreme in the field. The Habicht was on a par and may even have been a bit better, but the differences were minute. The Baigish is also a very sharp binocular, but because of its particular transmission characteristics (fairly low transmission, heavy yellow tint) I felt I could see more detail with the APM.
I also had a chance to make a quick comparison to a Leica Retrovid 7x35. I felt the APM was actually better than the Retrovid, at least optically.
Hermann
Last edited: