AlaskaProf
Guru
- Joined
- Jun 26, 2016
- Messages
- 2,236
- Location
- US of A
- Vessel Name
- boatless, ex: Seeadler
- Vessel Make
- RAWSON 41
So, a couple weeks ago we over-nighted in Comox (which I recommend!). Pathalogically unable to resist a hardware store, I stopped in to the small but remarkably well-stocked chandler.
On the counter was a placard touting "auto-focus binoculars", with an example. I carried them outside and found them to be remarkably clear and crisp. Took off my glasses, no change. Handed them to the wife, same result.
Okay, you dont need a degree in optical physics to understand that with no moving parts, these aren't "auto" anything, certainly not for the proferred $99(Canadian), but are simply focused over a range of distances.
Being asymetrically myopic and astygmatic, I constantly struggle to find a clear image, especially after someone else has used the glasses...at least I did until I bought my new $99 7x50s. Experimentation shows the pre-set range is about 20 yards to infinity. I now wonder why anyone would want any other type, maybe if one were a bird-watcher...
On the counter was a placard touting "auto-focus binoculars", with an example. I carried them outside and found them to be remarkably clear and crisp. Took off my glasses, no change. Handed them to the wife, same result.
Okay, you dont need a degree in optical physics to understand that with no moving parts, these aren't "auto" anything, certainly not for the proferred $99(Canadian), but are simply focused over a range of distances.
Being asymetrically myopic and astygmatic, I constantly struggle to find a clear image, especially after someone else has used the glasses...at least I did until I bought my new $99 7x50s. Experimentation shows the pre-set range is about 20 yards to infinity. I now wonder why anyone would want any other type, maybe if one were a bird-watcher...