Thermal night blindness ???

AndrewB

Active Member
Thinking of swapping out a thermal monocular for thermal binos - am mainly out on foot and use the thermal for scanning. Concerned about night vision blindness which i only get in one eye currently from the monocular - can anyone confirm or deny the problem would be in both eyes for thermal binoculars???
 
As above, used to get night blind in one eye with monocular, since swapping to binoculars (accolades and now habroks) this has gone away. Clearly it’s more to do with how your brain processes what your eye or eyes are seeing, but it works for me. I have heard of others for whom it doesn’t work though so worth checking out how it works for you.
 
You are looking at a screen which is brighter than the night around you. Your pupils will contract and that's it, you are 'night blind'. Monocular or binocular makes no difference. Only with a binocular you may not notice it as much as both eyes are equally affected.
 
I use single and binos both pulsar and there is a considerable difference with what I call black eye both have 50mm lenses

Monocular I use my left eye to spot and right to shoot with the right to counterbalance the black eye with the accolades completely different set up, I have a tendency to use the bino type like binos and take more care and time searching due to the sharper picture and no black eye compared to the monocular which I term as a spotter / finder

You do get a better in depth view with accolades gives you a clearer image

I would add if you can keep your thermal to yourself if possible setting it up for you is beneficial to what suits your eyes as it may get altered by another using the same unit

Good luck & enjoy
 
Never understood why as stalkers we always dream of having the best possible optical glass and then at low light run round with a TV screen on bright stuck to our shooting eye. If using a monocular why not use the non shooting eye for spotting?

Pulsar plus others have made this worse by making LRF thermals AXIOM that can only really be used with the right hand.

Rant over.

With regard to the original question with bino thermals you will still get night blindness as its a fact of science I am afraid, you just wont notice it as much as there is no frame of reference with both eyes subject to the same level of light.
 
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You are looking at a screen which is brighter than the night around you. Your pupils will contract and that's it, you are 'night blind'. Monocular or binocular makes no difference. Only with a binocular you may not notice it as much as both eyes are equally affected.
Second this.

Also using white hot compared to black hot can make a small difference I have found when using my HIK Raptors.
 
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Never understood why as stalkers we always dream of having the best possible optical glass and then at low light run round with a TV screen on bright stuck to our shooting eye. If using a monocular why not use the non shooting eye for spotting?

Pulsar plus others have made this worse by making LRF thermals AXIOM that can only really be used with the right hand.

Rant over.

With regard to the original question with bino thermals you will still get night blindness as its a fact of science I am afraid, you just wont notice it as much as there is no frame of reference with both eyes subject to the same level of light.

I must be very very lucky then because using the binos does not affect me - the monocular hammers me
 
I have tried the spotting with the non shooting eye, what seemed to help in addition was to set the display to red hot. I was hoping it would work the same was as the wheelhouse lights on a boat.
 
You are looking at a screen which is brighter than the night around you. Your pupils will contract and that's it, you are 'night blind'. Monocular or binocular makes no difference. Only with a binocular you may not notice it as much as both eyes are equally affected.

The rough science behind it is that your retina is made up of rods and cones. The rods contain rhodopsin, this pigment is extreme light sensitive and is responsible for "night vision". Exposing rhodopsin to bright light basically bleaches it or breaks up down for up to half an hour. This is the cause of the night blindness we experience if we get exposed to bright objects after dark.
 
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