Equipment & Gear > Scopes and Optics

Thermal Optics Setup for Predators

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Blacktail Sniper:
NUC??

pickardjw:

--- Quote from: Blacktail Sniper on April 01, 2025, 09:58:54 AM ---NUC??

--- End quote ---

Non-uniformity correction (NUC) adjusts for minor detector drift that occurs as the scene and environment change. Basically, the camera's own heat can interfere with its temperature readings. To improve accuracy, the camera measures the IR radiation from its own optics and then adjusts the image based on those readings. NUC adjusts gain and offset for each pixel, producing a higher quality, more accurate image.

During a NUC, the camera shutter comes down between optic and detector, making a clicking sound and freezing the image stream momentarily. The shutter acts as a flat reference source for the detector to calibrate itself to and thermally stabilize.

Basically, the image freezes for a second or two. Not a big deal in the scanner but if it occurs with the scope while you’re taking a follow up or running shot it would throw you off quite a bit.

birdshooter1189:
Mine nuc more frequently when i first start them up, or when temperature changes occur (walking from inside the house to outside, getting out of a warm truck to make a stand....).  Once the temperature stabilizes they don't nuc as often. I set my scope to manual nuc after missing a couple shots because my scope nuc'd at an in-opportune time.

Zardoz:

--- Quote from: pickardjw on April 01, 2025, 10:03:57 AM ---
--- Quote from: Blacktail Sniper on April 01, 2025, 09:58:54 AM ---NUC??

--- End quote ---

Non-uniformity correction (NUC) adjusts for minor detector drift that occurs as the scene and environment change. Basically, the camera's own heat can interfere with its temperature readings. To improve accuracy, the camera measures the IR radiation from its own optics and then adjusts the image based on those readings. NUC adjusts gain and offset for each pixel, producing a higher quality, more accurate image.

During a NUC, the camera shutter comes down between optic and detector, making a clicking sound and freezing the image stream momentarily. The shutter acts as a flat reference source for the detector to calibrate itself to and thermally stabilize.

Basically, the image freezes for a second or two. Not a big deal in the scanner but if it occurs with the scope while you’re taking a follow up or running shot it would throw you off quite a bit.

--- End quote ---

Have you done a recent FirmWare update?

pickardjw:

--- Quote from: Zardoz on November 06, 2025, 03:04:47 PM ---
--- Quote from: pickardjw on April 01, 2025, 10:03:57 AM ---
--- Quote from: Blacktail Sniper on April 01, 2025, 09:58:54 AM ---NUC??

--- End quote ---

Non-uniformity correction (NUC) adjusts for minor detector drift that occurs as the scene and environment change. Basically, the camera's own heat can interfere with its temperature readings. To improve accuracy, the camera measures the IR radiation from its own optics and then adjusts the image based on those readings. NUC adjusts gain and offset for each pixel, producing a higher quality, more accurate image.

During a NUC, the camera shutter comes down between optic and detector, making a clicking sound and freezing the image stream momentarily. The shutter acts as a flat reference source for the detector to calibrate itself to and thermally stabilize.

Basically, the image freezes for a second or two. Not a big deal in the scanner but if it occurs with the scope while you’re taking a follow up or running shot it would throw you off quite a bit.

--- End quote ---

Have you done a recent FirmWare update?

--- End quote ---

I haven't checked for any, but also haven't had an issue with the NUC'ing yet. Only been out a few nights.

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