Amcrest Ip8m-Mb2546 Outdoor Poe Camera vs Lorex vs Dahua

Amcrest introduces new 4k outdoor poe camera – the Amcrest ip8m-mb2546 4k varifocal camera with 4x optical zoom. How this Amcrest ip8m-mb2546 product is compared with Lorex lnb9272 varifocal lens and Dahua?

Amcrest Ip8m-Mb2546

This Ip8m-Mb2546 is Amcrest’s first product in the 4k resolution with a varifocal lens and bullet model camera category, whereas the previous product Amcrest ip8m-2496 is the first Amcrest product in 4k resolution but with a fixed lens. Although previously Amcrest has also released dome model with a varifocal lens (Amcrest ip8m-2454e) and Amcrest ip8m-mt2544e with Turret model which are also with a varifocal lens and 4k resolution, but ip8m-mb2546 is the first bullet model with varifocal lens @ 4k resolution. See also top dome POE outdoor cameras including Amcrest 4k turret ip8m-t2499.

Amcrest ip8m-mb2546
Amcrest ip8m-mb2546 with 4x optical zoom

Starvis sensor

One of the advantages of this product is the Sony Starvis CMOS sensor which has a bright image quality in low light using backlight illumination technology rather than front light illumination technology that allows the wide range of light to be collected at CMOS to achieve high sensitivity. It’s similar like a starlight CMOS technology which is also using backlight illumination technology. Besides that, Amcrest ip8m-mb2546 can also view and record colors up to low light with a minimum value of 0.05Lux and will switch to using Infrared up to 164ft range in black and white night vision when it is totally dark.

4k @15 fps

Amcrest Ip8m-Mb2546 uses a Sony CMOS sensor with a maximum resolution of up to 4k @ 15 fps, but if you expect a smoother frame rate @ 30 fps real time frame rate this camera can only be up to 2k resolution.

We will compare the first Amcrest bullet model security camera with varifocal lens @ 4k resolution with two competing products from Lorex and Dahua. Lorex has many variants, both bullet models and dome and turret 4k security cameras. Lorex Lnb9272 is one of the Nocturnal security camera series that is specifically designed to work great at low light and color night vision.

In brief, Amcrest ip8m-mb2546 can be summarized as follows.


  • Bullet model POE outdoor security camera 4k @15 fps with H.265 / H.264
  • Varifocal lens 2.7mm ~12mm with 1/1.8” Starvis Sony CMOS sensor and backlight illumination technology for low light capability with minimum illumination 0.05lux
  • Range of 110°(wide) ~ 40° (Tele) field of view angle
  • 4x optical motorized zoom and 16x digital zoom
  • For total darkness night vision with 4x IR LEDs range up to 164ft (50m)
  • Audio In and Out interfaces
  • IP67 rated for weatherproof and IK10 vandal resistance with heavy duty metal housing

To learn more spec details, click the product link below that also link to SHOP in Amazon.

Click here to SHOP Amcrest ip8m-mb2546

Amcrest ip8m-mb2546 vs Lorex vs Dahua

The following two tables represent spec comparison table between Amcrest and Lorex (table 1) and Amcrest vs Dahua (table 2). For more spec details click the product link below to learn more details and see the current price in Amazon.

Recording resolution

These three products can indeed record up to 4k (8mp) resolution, but the frame rate per second (fps) is different. Amcrest and Dahua offer frame rates @ 15fps with 4k resolution, and to get real time frame rates @ 30fps resolution only up to 2k (4mp). On the other hand Lorex Lnb9772 is superior which can provide full 4k resolution with a frame rate @ 30 fps.

Lorex Lnb9272 Nocturnal camera
Lorex Lnb9272 Nocturnal camera with color night vision


With fixed lens camera, the image quality is sharp, but you only have one fixed view angle you need to adjust manually to fit the suitable view angle. Unlike the fixed lens, varifocal lens allows you to adjust the viewing angle of the camera on the fly with your mobile device and the app. With varifocal lens you can zoom in to see the license plate more clearly, as well as the face you can zoom much clearer than the zoom by software or digital zoom.

Dahua IPC-HFW2831T-ZAS-S2
Dahua IPC-HFW2831T-ZAS-S2 with 5x optical zoom

Dahua offers more optical zoom and wider view angle compared with the other two products.

Night vision

Among these three products Lorex excels in the range of IR LEDs up to 400 ft. And with ambient light you can enjoy color night vision with its Color Night Vision (CNV) technology. Compare with Amcrest and Dahua which can only be up to half of Lorex IR range. And indeed the Lorex lnb9272 is one of the Lorex Nocturnal series cameras specifically designed for maximum performance in low light condition. See also starlight color night vision camera including Dahua color color night vision series and one of color night vision products by Hikvision – see Hikvision DS-2CD2347G1-LU ColorVu 4MP Turret.  


If you frequently monitor your property when you are on the go, it is better to subscribe to cloud storage plan to make it easier to access video footage with your mobile device. Although this Amcrest camera has memory slot for local storage with micro SD Card up to 256GB, but it will be easier and faster access from cloud storage compared to access footage from your local storage or NVR system via your home internet connection.

Now take a look at the following spec comparison tables.

Table 1 Amcrest vs Lorex varifocal camera

ModelAmcrest ip8m-mb2546Lorex Lnb9272
Resolution4K (8-Megapixel / 3840×2160) @15fps4k (3840 x 2160) @30 fps
LensVarifocal lens 2.7mm ~ 12mm STARVIS CMOSVarifocal lens 2.8mm ~ 12mm Sony Exmor R CMOS
Field of View angle110°~ 40°102°~ 39°
Zoom4x optical motorized zoom and 16 x digital zoom4.4 x optical motorized zoom
Night vision4x IR LEDs range up to 164ft (50m)Color Night Vision with ambient light, full darkness black and white with IR LED up to 400ft (112m)
AudioAudio IN Out  interfacesN/A
Local StorageMicroSD card (Max. 128GB)N/A
RatedIP67 weatherproof IK10 vandal resistantIP67 weatherproof  with aerospace-grade aluminum metal housing
Smart event  

Table 2 Amcrest vs Dahua varifocal camera

ModelAmcrest ip8m-mb2546Dahua  IPC-HFW2831T-ZAS-S2
Resolution4K (8-Megapixel / 3840×2160) @15fps8MP (3840 × 2160) @15 fps, and supports 2688×1520 @25/30 fps
LensVarifocal lens 2.7mm ~ 12mm STARVIS CMOSVarifocal lens 2.7mm ~ 13.5 mm
Field of View angle110°~ 40°113°~ 31°
Zoom4x optical motorized zoom and 16 x digital zoom5x optical motorized zoom
Night vision4x IR LEDs range up to 164ft (50m)4x IR LEDs range up to 60 m (196.85 ft)
AudioAudio IN interfaceAlarm: 1 in, 1 out; audio: 1 in, 1 out
Local StorageMicroSD card (Max. 128GB)MicroSD card (Max. 256GB)
RatedIP67 weatherproof IK10 vandal resistantIP67 weatherproof with metal housing
Smart event Tripwire, intrusion and other abnormality detection such as motion detection, vide tampering and still more

Prices listed may not represent current price in Amazon, they are fluctuating by times. Click the link below for current price and learn more spec details and link to SHOP in Amazon.

Related products

To support your business or your large homes with around 12 or 16 cameras you may consider one of this best 16 channel surveillance camera systems including Dahua, Annke and Zosi.

See also Reolink vs Lorex 4K 8 Channel POE NVR System kit for 8 cameras requirement or you may also consider wire-free camera system including Kasa KC300s2 wire-free camera vs Reolink vs Amcrest.

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