Scopes at dusk
March 15, 2010
This evening I compared the 13X56 Minox, Bushnell 6500 4 ½-30X50, and the 12-42X56 NightForce. The Minox was on a tri-pod. The two scopes were on the edge of the porch. I didn't touch them while looking through them. I tried to get the magnification the same on the rifle scopes to match the binoculars. I picked the words “THIS SIDE DOWN” on the pump house siding about 115 yards from the porch. The following gives the times when I could no longer read the words without resorting to trying to make out individual letters.
Minox 13X56
6:42 PM
Bushnell 6500 4 ½-30X50 ~ 13X
6:44 PM
NightForce 12-42X56 ~ 13X
7:00 PM
After the Bushnell could no longer read the words I turned the Bushnell 6500 up so I could read the words again. This required 18X. Each time I turned the power ring up to what was required to read the words again. The following are the minutes I could no longer read the words with the Bushnell 6500.
18X – 7:03 PM
20X – 7:10 PM
26X – 7:16 PM
30X – 7:24 PM
While I was turning up the Bushnell, I did not have to turn the NightForce up until 7:00 PM. I then turned it up till I could read the words again. This required 16X. The following are the minutes when I could no longer read the words with the NightForce.
16X – 7:11 PM
20X – 7:16 PM
22X – 7:25 PM
24X – 7:27 PM
26X – 7:28 PM
Someone suggested I should have turned the magnification down instead of up. I tried that a couple days later with only the Bushnell. I started on 20X. As soon as I could not read "THIS SIDE DOWN" I turned it to 16X. It was brighter but also what I wanted to see disappeared into obsuririty.
March 15, 2010
This evening I compared the 13X56 Minox, Bushnell 6500 4 ½-30X50, and the 12-42X56 NightForce. The Minox was on a tri-pod. The two scopes were on the edge of the porch. I didn't touch them while looking through them. I tried to get the magnification the same on the rifle scopes to match the binoculars. I picked the words “THIS SIDE DOWN” on the pump house siding about 115 yards from the porch. The following gives the times when I could no longer read the words without resorting to trying to make out individual letters.
Minox 13X56
6:42 PM
Bushnell 6500 4 ½-30X50 ~ 13X
6:44 PM
NightForce 12-42X56 ~ 13X
7:00 PM
After the Bushnell could no longer read the words I turned the Bushnell 6500 up so I could read the words again. This required 18X. Each time I turned the power ring up to what was required to read the words again. The following are the minutes I could no longer read the words with the Bushnell 6500.
18X – 7:03 PM
20X – 7:10 PM
26X – 7:16 PM
30X – 7:24 PM
While I was turning up the Bushnell, I did not have to turn the NightForce up until 7:00 PM. I then turned it up till I could read the words again. This required 16X. The following are the minutes when I could no longer read the words with the NightForce.
16X – 7:11 PM
20X – 7:16 PM
22X – 7:25 PM
24X – 7:27 PM
26X – 7:28 PM
Someone suggested I should have turned the magnification down instead of up. I tried that a couple days later with only the Bushnell. I started on 20X. As soon as I could not read "THIS SIDE DOWN" I turned it to 16X. It was brighter but also what I wanted to see disappeared into obsuririty.
