Question on thermal scopes

[blaqkpanda]

Some guys will put a piece of hot brass in their impact, NUC the sensor, and then move the crosshairs to the hot brass that has been calibrated into the sensor.

[El Paisano]

My thermal (Hogster) works day or night. There just isn't as much contrast in the daytime because all objects are warmer (when on white hot), but it is plenty usable to me.
Now my Sig Echo 1 isn't very usable in daylight because of reflected light on the screen.
For sighting in I use foil a/c tape and angle the target toward the sky so that it is reflecting no heat from the sky...makes it work a lot better. Doing that with straight vertical target doesn't work very well.
I do all my thermal sight in at my range on my place. Public ranges just have vertical targets.

[Outdoor Legacy]

Basschsr, to answer your question, there are a couple thermal scopes that have both thermal and daytime sensors in them. They are the Pulsar DUO's. However, they will not work the way you're hoping for zeroing because you must zero both the daytime and thermal sensor separately. If you think about it, it makes sense....there is a lens for the thermal sensor and a lens for the daytime camera sensor. They are in two different locations, they cannot stack the sensors directly in front of one another or they couldn't see out the lens. Each sensor is independent with a separate lens and they must be zeroed separately.

Also, someone was asking about using something cold as a bullseye. That will 100% work. I used to use ice cubes in the finger or a rubber glove or a ziplock. Anything that is has a temperature that is greatly different than the ambient temperature will stand out in the thermal image. So hot, cold or reflective. Reflective is the one that confuses people the most! Thermal can detect heat even in a reflection. So if you look at a pond with thermal you can see the trees nearby reflecting their heat into the water. So a piece of tinfoil or HVAC tape on a target will reflect the heat from the sky, even if the sun isn't out. The atmosphere is hot and that can be reflected on to the the foil. Sometimes putting it at a slight angle helps on cloudy days.

The issue with shooting at something hot or cold like a hand warmer or an ice cube is that if you put it against your target, the heat or cold will spread and "bloom" out and you can end up with a baseball size bullseye instead of a small one. It's not bad if you get it done quickly but a handwarmer taped to a piece of paper or plywood can quickly create a softball sized heat blob that the scope sees. That's why the reflective tin foil is so effective and easy.

I hope this info helps!

Jason

Outdoor Legacy - Owner
The Late Night Vision Show - Co-Host

Night Vision, Thermal & Accessories
OutdoorLegacyGear.com
(877)350-1818

[cehorn]

Basschsr, to answer your question, there are a couple thermal scopes that have both thermal and daytime sensors in them. They are the Pulsar DUO's. However, they will not work the way you're hoping for zeroing because you must zero both the daytime and thermal sensor separately. If you think about it, it makes sense....there is a lens for the thermal sensor and a lens for the daytime camera sensor. They are in two different locations, they cannot stack the sensors directly in front of one another or they couldn't see out the lens. Each sensor is independent with a separate lens and they must be zeroed separately.

Also, someone was asking about using something cold as a bullseye. That will 100% work. I used to use ice cubes in the finger or a rubber glove or a ziplock. Anything that is has a temperature that is greatly different than the ambient temperature will stand out in the thermal image. So hot, cold or reflective. Reflective is the one that confuses people the most! Thermal can detect heat even in a reflection. So if you look at a pond with thermal you can see the trees nearby reflecting their heat into the water. So a piece of tinfoil or HVAC tape on a target will reflect the heat from the sky, even if the sun isn't out. The atmosphere is hot and that can be reflected on to the the foil. Sometimes putting it at a slight angle helps on cloudy days.

The issue with shooting at something hot or cold like a hand warmer or an ice cube is that if you put it against your target, the heat or cold will spread and "bloom" out and you can end up with a baseball size bullseye instead of a small one. It's not bad if you get it done quickly but a handwarmer taped to a piece of paper or plywood can quickly create a softball sized heat blob that the scope sees. That's why the reflective tin foil is so effective and easy.

I hope this info helps!

Jason

Outdoor Legacy - Owner
The Late Night Vision Show - Co-Host

Night Vision, Thermal & Accessories
OutdoorLegacyGear.com
(877)350-1818

Thanks for that information. I was the one asking about shooting cold instead of hot, especially this time of year. I still think a frozen penny would work pretty dang good and it would be nothing to have a handful in a cooler to swap out if they get warm.

[Outdoor Legacy]

Thanks for that information. I was the one asking about shooting cold instead of hot, especially this time of year. I still think a frozen penny would work pretty dang good and it would be nothing to have a handful in a cooler to swap out if they get warm.

Absolutely a good idea and you can't use much else that costs less than a penny or a nickel. Heck even a quarter.lol