cm250
Member
atblis,
Whats a good way to clean the sensors?
Whats a good way to clean the sensors?
Do you trust your chronograph
- Thread starter atblis
- Start date
- Status
atblis
Member
Same way you'd clean any other optic.
http://www.birdwatching.com/optics/cleaning_binoculars.html
Basically Windex and a non abrasive cloth. I've been using the microfiber towels recently.
http://www.birdwatching.com/optics/cleaning_binoculars.html
Basically Windex and a non abrasive cloth. I've been using the microfiber towels recently.
The light sensors in my Chrony Beta Master have plastic lenses so I wouldn't advise using any chemicals to clean them. A Q-tip moistened with water should suffice.
As for Windex or similar, I wouldn't use that on any of my scope or binocular lenses. Scopes and binoculars are coated and unless you know how ammonia reacts with the coatings it's best to play it safe and use photographic lens cleaning solution or similar ... that's what I use. I have a camera lens "puffer" (looks like a small rocket) that I use to blow dust off the lenses before cleaning.
From the link provided by atblis ...
Step 2
Moisten a Q-tip with water or lens cleaning solution and float off any remaining dust. Or if your binocular is waterproof, you can actually run it under the tap (but don't squirt it hard). DO NOT use fluid designed for cleaning eyeglasses or windows, as it may attack the coatings.
As for Windex or similar, I wouldn't use that on any of my scope or binocular lenses. Scopes and binoculars are coated and unless you know how ammonia reacts with the coatings it's best to play it safe and use photographic lens cleaning solution or similar ... that's what I use. I have a camera lens "puffer" (looks like a small rocket) that I use to blow dust off the lenses before cleaning.
From the link provided by atblis ...
Step 2
Moisten a Q-tip with water or lens cleaning solution and float off any remaining dust. Or if your binocular is waterproof, you can actually run it under the tap (but don't squirt it hard). DO NOT use fluid designed for cleaning eyeglasses or windows, as it may attack the coatings.
JimKirk
Member
About ten years ago two of my friends and I decided to compare chronographs as to how accurate they were. We starting out by shooting the same gun over each chrono and came up with around 100 fps difference. After talking about the results and knowing that each load can vary by 75 fps or more, we decided that the only way to test the chronos would be to set them up back to back to back. This way the variance would be limited to each round would be shown by each chrono not by three different rounds. The first friend had a reasonable(cheap) Chrony First model, the other had an Oehler 35(much$$) and I had a middle of the pack Pact Model 1. After setting the chronos as close as possible to each other and firring a round, we wrote down each recorded velocity. After fifteen rounds we averaged the total of the fifteen shots for each chrono. By using the average we found that there was only 33 fps difference between the three chronos. The Chrony was the lower number, the Oehler 35 was in the middle and my Pact I gave the higher number. So it boils down that each chrono was within 16.5 fps(within a few FPS) of the middle. The guy with the Chrony has since shot his dead center with a 270 Win, the Oehler guy has past away and nobody know where it is and I use mine every time I develope a new load for any of my guns. So yes I trust mine!
Jimmy K
Jimmy K
I once tested my bottom of the line Chrony against two Oehlers--one with the proof screens and one without. The extreme spread between the three was about 7 ft. per sec.
This was with factory .45 ACP and 9m handloads. I do like the Oehlers with the printer though. Very convenient.
This was with factory .45 ACP and 9m handloads. I do like the Oehlers with the printer though. Very convenient.
- Status
