Hikmicro Stellar SX75L 4.0 | Thermal Scope
$9,999.00
The HIKMICRO Stellar SX75L 4.0 is a thermal rifle scope built around a 1280 × 1024 VOx detector with 12 µm pixels and a 75mm F1.2 lens. Magnification runs from 3.0×–30.0×. The datasheet lists an “LRF-inside” design, so the laser rangefinder is part of the scope and there is no separate box on top. Two things to know up front. HIKMICRO’s 3,600 m figure is a detection range rating, not an identification range. And the rated battery time is 7 hours, shorter than the 9.5 hours on the SQ50L 4.0. If you are still deciding on a type, see all of our thermal scopes.
HIKMICRO Stellar SX75L 4.0 Thermal Scope: What You Get
The figures below come from HIKMICRO’s published datasheet for the SX75L 4.0. They are manufacturer figures.
1280 × 1024 Thermal Detector and 75mm F1.2 Lens
A 1280 × 1024 VOx uncooled detector with 12 µm pixels works in the 8–14 µm band at 50 Hz. The 75mm F1.2 lens gives 3.0×–30.0× magnification and a 12.1° × 9.7° field of view. Focusing is by a side focus ring, with a minimum focusing distance of 10 m. If you are comparing options at this resolution, see our HIKMICRO 1280 thermal scopes.
1,200 m Laser Rangefinder Inside the Scope
The datasheet lists an “LRF-inside” design, so the laser rangefinder is part of the scope and there is no separate box mounted on top. It is a 905 nm Class 1 laser that measures from 10 m out to 1,200 m with ±1 m accuracy.
Ballistic Calculation and Zeroing
The SX75L lists a ballistic calculation feature, five zeroing profiles and freeze zeroing, so you can store set-ups for more than one rifle or load.
AMOLED Display and Image Processing
The image is shown on a 1.03-inch 2560×2560 AMOLED display, with an 8 mm exit pupil, 55 mm eye relief and a -5D to +5D diopter range. Six palettes are included: Black Hot, White Hot, Red Hot, Fusion, Red Monochrome and Green Monochrome. Brightness, contrast and tone (cold or warm) are adjustable. The datasheet also lists the HIKMICRO Shutterless Image System (HSIS), Image Pro 4.0, Zoom Pro and Sync Pro, and three FFC (Flat Field Correction) modes: Auto, Manual and External Correction.
Recoil Rating
The datasheet rates the SX75L to 6,000 J of maximum recoil. The scope is IP67 rated and works from -30°C to 55°C.
Recording and App Connection
The scope has 64 GB of built-in eMMC storage for video, audio and snapshots, plus recoil-activated recording and a local album for review. Picture-in-picture, Hotspot and Hot Track are listed as features. Per the Quick Start Guide, the HIKMICRO app connects to the scope over its own hotspot for live view and remote control, firmware upgrades and saved footage.
Battery Life
Two internal rechargeable lithium batteries and one replaceable 18650 battery give 7 hours of continuous running at 25°C with the rangefinder on, which is HIKMICRO’s rating. The internal batteries charge over USB-C (5 V DC/2 A, QC3.0), and the external 18650 charges in the supplied battery charger.
Standard 30 mm Tube and Ring Fit
The SX75L has a standard 30 mm tube, so it sits in ordinary 30 mm rings like a traditional riflescope. Centre height is 41 mm, and the scope weighs 1,075 g with the external battery fitted. Ring height and clearance over the barrel depend on your rifle, so check them before you order. The Quick Start Guide says rings need to be purchased separately. Our thermal mounts guide covers mounting options.
SX75L 4.0 or SX75LR 4.0: Which One?
The SX75LR 4.0 is the rail-mount version of the same scope. On the datasheets, the detector, lens, rangefinder, battery and features match. Apart from the model number, only two rows differ:
| Specification | SX75L 4.0 | SX75LR 4.0 |
|---|---|---|
| Mounting | Standard 30 mm tube | Rail mounting |
| Weight (with external battery) | 1,075 g | 1,140 g |
Choose the SX75L if you want to use 30 mm rings. Choose the SX75LR if you want to mount on a rail.
SX75L 4.0 Compared With Stellar SX60LS 3.0
The Stellar SX60LS 3.0 is still listed on our site, and it is the closest 3.0 scope in the 1280 class. This table only lists specs that are published for both generations. All figures are the manufacturer’s own, and we have not compared image quality between the two.
| Specification | SX60LS 3.0 | SX75L 4.0 |
|---|---|---|
| Detector resolution | 1280px (as named on our listing) | 1280 × 1024, 12 µm |
| Lens | 60 mm, F1.0 | 75 mm, F1.2 |
| Magnification | 2.5×–28.5× | 3.0×–30.0× |
| Field of view (degrees) | 14.6° × 11.7° | 12.1° × 9.7° |
| Display | 1.03-inch 2560 × 2560 OLED | 1.03-inch 2560 × 2560 AMOLED |
| Exit pupil | 6 mm | 8 mm |
| Eye relief | 45 mm | 55 mm |
| Dimensions | 452.6 × 94.3 × 78.9 mm | 445.7 × 93.5 × 78.7 mm |
| Battery operating time (25°C, LRF on) | 6.5 hours | 7 hours |
Weight, maximum recoil and detection range are left out. The 3.0 weight is given without the external battery and its recoil figure is in different units, so neither is comparable. We do not quote a 3.0 detection range because our listing does not state one in its specifications.
SX75L 4.0 Specifications
| Specification | Hikmicro Stellar SX75L 4.0 |
|---|---|
| Image Sensor | VOx Uncooled Focal Plane Arrays |
| Max. Resolution | 1280 × 1024 |
| Frame Rate | 50 Hz |
| Pixel Interval | 12 µm |
| Response Waveband | 8 µm to 14 µm |
| Lens (Focal Length) | 75 mm, F1.2 |
| Focus Mode | Side focus ring |
| Detection Range | 3,600 m |
| Min. Focusing Distance | 10 m |
| Magnification | 3.0×–30.0× |
| Field of View (H × V), degrees | 12.1° × 9.7° |
| Display | 2560×2560, 1.03-inch AMOLED |
| Palettes | Black Hot, White Hot, Red Hot, Fusion, Red Monochrome, Green Monochrome |
| Exit Pupil | 8 mm |
| Eye Relief | 55 mm |
| Diopter Range | -5D to +5D |
| Image Features | HSIS, Image Pro 4.0, Zoom Pro, Sync Pro |
| FFC (Flat Field Correction) Mode | Auto, Manual, External Correction |
| Recording | On-board video, audio recording, snapshots, recoil-activated recording |
| Storage | Built-in eMMC, 64 GB |
| Other Features | PIP, Hotspot, Hot Track, Standby Mode, Local Album |
| Zeroing | 5 zeroing profiles, freeze zeroing |
| Ballistic Calculation | Yes |
| Max. Recoil | 6,000 J |
| Laser Rangefinder | 905 nm, Class 1, 10 m to 1,200 m, ±1 m accuracy |
| Battery | Two rechargeable lithium batteries (internal), one replaceable rechargeable 18650 battery (external) |
| Battery Operating Time | 7-hour continuous running (25°C, LRF on) |
| Charging | 5 V DC/2 A USB Type-C, supports QC3.0 (built-in battery only; external battery charges in the battery charger) |
| Mounting | Standard 30 mm |
| Dimensions | 445.7 × 93.5 × 78.7 mm |
| Weight | 1,075 g with external battery |
| Centre Height | 41 mm |
| Working Temperature | -30°C to 55°C (-22°F to 131°F) |
| Protection Level | IP67 |
| Model (datasheet) | HM-TR8C-75Y3G/WL-SX75L 4.0 |
What’s Supplied
Per the datasheet: scope (×1), battery (×2), battery charger (×1), Type-C cable (×1), lint-free cloth (×1), scope guard (×1), bag (×1) and Quick Start Guide (×1). The Quick Start Guide also lists a bag strap and scope protective stickers (only for some models). Mounting rings are not on that list. The Quick Start Guide says the ring needs to be purchased separately.
Questions Buyers Ask About the SX75L 4.0
Is the SX75L 4.0 worth the extra over the SQ50L 4.0?
On paper, the SX75L gives you a 1280 × 1024 detector against 640 × 512, a 75mm F1.2 lens against 50mm F1.0, a 3,600 m detection rating against 2,600 m, and a 12.1° × 9.7° field of view against 8.8° × 7.0°. The trade-offs are on the same datasheets. Rated battery time is 7 hours against 9.5 hours. The SX75L weighs 1,075 g against 1,008 g with the external battery, and its centre height is 41 mm against 36 mm. It is also larger, at 445.7 × 93.5 × 78.7 mm against 439.6 × 82.9 × 74.3 mm. The detector pixel size (12 µm), rangefinder and recoil rating are the same. We have not tested the two side by side, so we make no claim about image quality.
How far can I actually see and identify game with a 1280×1024, 75mm scope?
HIKMICRO rates the detection range at 3,600 m. That is a detection rating, not an identification range. The datasheet gives no test conditions and no identification range, so we do not quote one. How far you can identify an animal depends on its size, the conditions and your magnification. Our guide on how to choose a thermal scope explains the difference between detection and identification.
Is a 1280 sensor worth it over a 640 sensor?
A 1280 × 1024 detector has four times the pixels of a 640 × 512 one, and both have 12 µm pixels on these datasheets. More pixels can show more detail in the thermal image, but we do not have side-by-side footage of the SX75L and the SQ50L 4.0, so we do not claim how much difference you will see in the field. Weigh it against the shorter rated battery time and the extra weight. You can compare more options in our HIKMICRO 1280 thermal scopes.
How long does the battery last?
HIKMICRO rates it at 7 hours of continuous running at 25°C with the rangefinder on. That is shorter than the 9.5 hours rated for the SQ50L 4.0. It has two internal rechargeable batteries plus one replaceable 18650. Only the internal batteries charge over USB-C. The 18650 charges in the supplied battery charger. The datasheet does not give run time in the cold or with recording on.
Will the SX75L 4.0 fit my rings, and how heavy is it?
The SX75L has a standard 30 mm tube and a centre height of 41 mm. It weighs 1,075 g with the external battery fitted. Whether it suits your rings and rifle depends on ring height and clearance over the barrel, so check those before ordering. The Quick Start Guide says rings are bought separately. Our thermal mounts guide has more detail. If you want to mount on a rail instead, look at the SX75LR 4.0.
Does the SX75L 4.0 have a built-in laser rangefinder?
Yes. The datasheet lists an “LRF-inside” design with a 905 nm Class 1 laser that measures from 10 m to 1,200 m with ±1 m accuracy. The datasheet lists ballistic calculation, five zeroing profiles, freeze zeroing and distance measurement as separate features. It does not say whether the range reading is used by the ballistic calculation automatically, so we do not claim that.
Will it handle my rifle’s recoil?
HIKMICRO rates the SX75L to 6,000 J of maximum recoil. That is a manufacturer figure, and HIKMICRO does not publish a list of calibres, so we do not name any.
SX75L or SX75LR: which one do I get?
The two scopes share the same detector, lens, rangefinder and battery on the datasheets. The differences are mounting (30 mm tube on the SX75L, rail mounting on the SX75LR) and weight (1,075 g against 1,140 g with the external battery). Pick the mounting style that suits your rifle and set-up.
Stellar 4.0 Manual
Download the Stellar 4.0 quick start guide (PDF).
Choose Hikmicro Stellar 4.0 Model
| (k) Stellar 4.0 Series | SX75L 4.0 – 12mk – 3.0x – 1280px – 3600m |
|---|
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| Tube Size | 30mm Tube |
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ADM American Defense - Quick Detach Mount
| American Defense Series | DELTA, RECON |
|---|---|
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| Mount Height | 27mm, 29mm, 34mm, 35mm, 38mm, 39mm, 43mm, 49mm |
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Zeroing Targets - Thermal + Day + Night Vision 2026
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