DNT Optics ThermNight TNC335R — 384×288 thermal riflescope

How far you can see a person

112 m make out detail182 m tell what it is729 m spot it

501002005001k2k5k m

Calculated from the sensor's pixel pitch and the lens focal length, for clear air.

DNT OpticsRiflescope · 384-class · Laser rangefinder

DNT Optics ThermNight TNC335R

Approx. price: ~$2,200
Sensor: 384×288 · 12 µm
Lens: 35 mm · 2.5×
Weight: 25.6 oz

Price and availability on DNT Optics’s site may differ.

Best for

Night shooting where ranging matters — hogs and coyotes past 150 yards

01Specifications

As published by DNT Optics. Sources: dntoptics.com.

Sensor: 384×288
Pixel pitch: 12 µm
NETD: ≤18 mK
Refresh rate: 50 Hz
Lens: 35 mm
Base magnification: 2.5×
Digital zoom: up to 10×
Field of view: 7.53° horizontal
Display: 1920x1080 OLED
Run time: 6 h
Battery type: Removable pack
Weight: 25.6 oz
Length: 9.2″
Laser rangefinder: Yes
Ballistic calculator: Yes
Records video: Yes
Wi-Fi: Yes
IP rating: IP67
Warranty: 2 years
Approx. price: ~$2,200

02Pros and cons

From the published specs. What owners report is in the next section.

For it

Sensitive sensor that picks out small heat differences on humid or rainy nights (56th-best of 285 that publish it)
Built-in laser rangefinder that feeds the ballistic calculator
Swappable battery pack, so a spare doubles the run time
Waterproof (IP67), survives a dunking
Records video and connects to a phone app
~$2,200, well under the ~$3,000 typical for riflescopes here

Against it

Short 35 mm lens: a wide view, but less reach than a 50 mm scope
Entry-level 384×288 sensor, with less detail than a 640
Zoom past 2.5× is digital and gets blurry

03What owners say

owner discussions, 2025–2026

Summarised from 8 public owner discussions between 2025 and 2026. Owner experience, not a measurement.

The ThermNight 335 is bought for one reason above all: a thermal channel and a digital day/night channel in one scope, with a rangefinder and ballistic calculator, for roughly $2,000 to $2,200. Owners who have it running are enthusiastic. One who has also used Pulsar and AGM units puts the image right there with them and says the dual capability and price are what set it apart; another says you can easily hunt on the thermal alone and that the night-vision side is just as good. Buyers comparing it with the Hydra HS325 and the PARD TD32 tend to land here for the onboard rangefinder and solver.

The serious complaint is a thermal image that blacks out on recoil. Two separate buyers, one in late 2025 and one in 2026, report the thermal channel going fully or half black after every shot while the digital channel kept working; one had sent his back twice without a fix. DNT staff answered that post publicly and offered a repair or replacement, which reassured at least one shopper, but it is the issue to watch for when zeroing a new unit.

What owners like

One scope does thermal detection and digital day/night identification; hog hunters describe spotting on thermal and confirming or shooting on the night channel.
An owner who has used Pulsar and AGM thermals says the image holds up against them, and another calls both channels amazing.
The rangefinder and ballistic calculator are the deciding factor for buyers who also looked at the Hydra HS325.
Takes an ADM quick-release mount and owners say it returns to zero well, so it can come off the rifle and be used handheld from a blind, although it is bulky for that.

Common complaints

Two owners report the thermal channel blacking out after every shot, one through two trips back for repair; the digital channel was unaffected.
Too bulky to carry as a pocket scanner; owners who want a handheld point people to the Hydra instead, noting the 640 Hydra costs about the same as this 320-sensor ThermNight.
Holdover from the rangefinder confused one owner, whose marker sat far from the reticle when ranging his own short zero distance.
Several dealers steer shoppers away from DNT, citing image quality or how the company runs; owners suspect thin margins are part of it.

Do owners actually use the night-vision channel?

The owners who answer say yes: the usual pattern is to detect on thermal and then identify or shoot on the digital channel, partly because zeroing the day/night side at the range is easier. One owner says the thermal alone is good enough to hunt with, and the night side is a bonus.

My thermal image blacks out when I shoot. Is that normal?

No. Two owners have reported exactly this, with the digital channel still working, and DNT's own staff said it should not happen and offered to repair or replace the scope. One affected owner was running a .308 with a suppressor; others suggested trying a lighter-recoiling rifle and checking that a flat-top 21700 cell is fitted before sending it in.

Can it double as a handheld?

It can, and one owner pulls his off an ADM QD mount to scan, but owners agree it is heavy and bulky for walking around with, and the base magnification makes it shaky in the hand. For a scanner they suggest a Hydra.