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Nikon D3400 vs L840

The Nikon D3400 and the Nikon Coolpix L840 are two digital cameras that were revealed to the public, respectively, in August 2016 and February 2015. The D3400 is a DSLR, while the L840 is a fixed lens compact. The cameras are based on an APS-C (D3400) and a 1/2.3-inch (L840) sensor. The D3400 has a resolution of 24 megapixels, whereas the L840 provides 15.9 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Nikon D3400 versus Nikon L840
Nikon D3400 Nikon L840
Digital single lens reflex Fixed lens compact camera
Nikon F mount lenses 22.5-855mm f/3-6.5
24 MP, APS-C Sensor 15.9 MP, 1/2.3" Sensor
1080/60p Video 1080/60i Video
ISO 100-25,600 ISO 100-6,400
Optical viewfinder No viewfinder, LCD framing
3.0 LCD, 921k dots 3.0 LCD, 921k dots
Fixed screen (not touch-sensitive) Tilting screen (not touch-sensitive)
5 shutter flaps per second 7.4 shutter flaps per second
1200 shots per battery charge590 shots per battery charge
124 x 98 x 76 mm, 445 g 113 x 78 x 96 mm, 538 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D3400 and the Nikon Coolpix L840? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The physical size and weight of the Nikon D3400 and the Nikon L840 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

Both cameras are available in two different colors (black, red).

Size Nikon D3400 vs Nikon L840
Compare D3400 versus L840 top
Comparison D3400 or L840 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon L840 is notably smaller (27 percent) than the Nikon D3400. In this context, it is worth noting that neither the D3400 nor the L840 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the L840 has a lens built in, whereas the D3400 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the D3400 and their specifications in the Nikon Lens Catalog.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Nikon D3400 124 mm 98 mm 76 mm 445 g 1200 n Aug 2016 499i
 
Nikon L840 113 mm 78 mm 96 mm 538 g 590 n Feb 2015 299i
 
Canon 77D 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 899 i
 
Canon 200D 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549i
 
Canon M100 108 mm 67 mm 35 mm 302 g 295 n Aug 2017 499i
 
Canon SX60 128 mm 93 mm 114 mm 650 g 340 n Sep 2014 549i
 
Leica X Typ 113 133 mm 73 mm 78 mm 486 g 350 n Sep 2014 2,295i
 
Nikon B600 122 mm 82 mm 99 mm 500 g 280 n Jan 2019 349 i
 
Nikon D3500 124 mm 97 mm 70 mm 365 g 1550 n Aug 2018 429 i
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 1,299 i
 
Nikon D5600 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 699 i
 
Nikon B500 114 mm 78 mm 95 mm 541 g 600 n Jan 2016 299i
 
Nikon D5500 124 mm 97 mm 70 mm 420 g 820 n Jan 2015 899i
 
Nikon P900 140 mm 103 mm 137 mm 899 g 360 n Mar 2015 599i
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499i
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799i
 
Nikon D3200 125 mm 96 mm 77 mm 505 g 540 n Apr 2012 599i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

Any camera decision will obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The L840 was launched at a lower price than the D3400, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Nikon D3400 features an APS-C sensor and the Nikon L840 a 1/2.3-inch sensor. The sensor area in the L840 is 92 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 5.6. The sensor in the D3400 has a native 3:2 aspect ratio, while the one in the L840 offers a 4:3 aspect.

Nikon D3400 and Nikon L840 sensor measures

With 24MP, the D3400 offers a higher resolution than the L840 (15.9MP), but the D3400 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 1.33μm for the L840) due to its larger sensor. Moreover, the D3400 is a somewhat more recent model (by 1 year and 6 months) than the L840, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Nikon D3400 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D3400 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Nikon L840 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

The Nikon D3400 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Nikon Coolpix L840 are ISO 100 to ISO 6400 (no boost).

D3400 versus L840 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Nikon D3400 APS-C 24.0 6000 40001080/60p24.813.9119286
 
Nikon L840 1/2.3 15.9 4608 34561080/60i........
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178
 
Canon 200D APS-C 24.0 6000 40001080/60p23.613.4104179
 
Canon M100 APS-C 24.0 6000 40001080/60p23.512.9127278
 
Canon SX60 1/2.3 14.2 4608 30721080/60p19.210.812739
 
Leica X Typ 113 APS-C 16.1 4928 32641080/30p........
 
Nikon B600 1/2.3 15.9 4608 34561080/30p........
 
Nikon D3500 APS-C 24.0 6000 40001080/60p........
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
 
Nikon B500 1/2.3 15.9 4608 34561080/60i........
 
Nikon D5500 APS-C 24.0 6000 40001080/60p24.114.0143884
 
Nikon P900 1/2.3 15.9 4608 34561080/60p........
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.9133883
 
Nikon D3200 APS-C 24.1 6016 40001080/30p24.113.2113181

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the D3400 provides a higher frame rate than the L840. It can shoot video footage at 1080/60p, while the L840 is limited to 1080/60i.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the D3400 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the L840 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Nikon D3400, the Nikon L840, and comparable cameras.

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Core Features
  Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Nikon D3400optical n 3.0 921 fixed n 1/4000s 5.0 Y n
 
Nikon L840none n 3.0 921 tilting n 1/4000s 7.4 Y Y
 
Canon 77Doptical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n
 
Canon 200Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon M100none n 3.0 1040 tilting Y 1/4000s 6.1 Y n
 
Canon SX60922 n 3.0 922 swivel n 1/2000s 6.4 Y Y
 
Leica X Typ 113optional n 3.0 920 fixed n 1/2000s 5.0 Y n
 
Nikon B600none n 3.0 921 fixed n 1/4000s 7.4 Y Y
 
Nikon D3500optical n 3.0 921 fixed n 1/4000s 5.0 Y n
 
Nikon D7500optical Y 3.2 922 tilting Y 1/8000s 8.0 Y n
 
Nikon D5600optical n 3.2 1037 swivel Y 1/4000s 5.0 Y n
 
Nikon B500none n 3.0 921 tilting n 1/4000s 7.4 Y Y
 
Nikon D5500optical n 3.2 1037 swivel Y 1/4000s 5.0 Y n
 
Nikon P900921 n 3.0 921 swivel n 1/4000s 7.0 Y Y
 
Nikon D3300optical n 3.0 921 fixed n 1/4000s 5.0 Y n
 
Nikon D5300optical n 3.2 1037 swivel n 1/4000s 5.0 Y n
 
Nikon D3200optical n 3.0 921 fixed n 1/4000s 4.0 Y n

Concerning the storage of imaging data, both the D3400 and the L840 write their files to SDXC cards. The D3400 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the L840 cannot take advantage of Ultra High Speed SD cards.

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Nikon D3400 and Nikon Coolpix L840 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Nikon D3400Ymonomono--mini2.0--Y
 
Nikon L840-stereomono--micro2.0YY-
 
Canon 77DYstereomonoY-mini2.0YYY
 
Canon 200DYstereomonoY-mini2.0YYY
 
Canon M100-stereomono--micro2.0YYY
 
Canon SX60YstereomonoY-mini2.0YY-
 
Leica X Typ 113Ystereomono--mini2.0---
 
Nikon B600-stereomono--micro2.0Y-Y
 
Nikon D3500Ymonomono--mini2.0--Y
 
Nikon D7500YstereomonoYYmini2.0Y-Y
 
Nikon D5600YstereomonoY-mini2.0YYY
 
Nikon B500-stereomono--micro2.0YYY
 
Nikon D5500YstereomonoY-mini2.0Y--
 
Nikon P900-stereomono--micro2.0YY-
 
Nikon D3300YmonomonoY-mini2.0---
 
Nikon D5300YstereomonoY-mini2.0Y--
 
Nikon D3200YmonomonoY-mini2.0---

It is notable that the D3400 has a hotshoe, while the L840 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the D3400 and the L840 have been discontinued, but can regularly be found used on eBay. The L840 was replaced by the Nikon B500, while the D3400 was followed by the Nikon D3500. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon website.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Nikon D3400 or the Nikon L840 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Nikon D3400:

  • More detail: Offers more megapixels (24 vs 15.9MP) with a 25% higher linear resolution.
  • Better image quality: Features a larger and more technologically advanced imaging sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (1200 versus 590) on a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Is somewhat more recent (announced 1 year and 6 months after the L840).


Arguments in favor of the Nikon Coolpix L840:

  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster burst: Shoots at higher frequency (7.4 vs 5 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with an integrated lens, while the D3400 requires a separate lens.
  • More compact: Is smaller (113x78mm vs 124x98mm) and will fit more readily into a bag.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been on the market for longer (launched in February 2015).

If the number of relative strengths (bullet points above) is taken as a guide, the D3400 is the clear winner of the match-up (13 : 9 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D3400 13:09 L840

How about other alternatives? Do the specifications of the Nikon D3400 and the Nikon L840 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the D3400 and the L840 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Nikon D3400+76/1004/54.5/54.5/5 Aug 2016 499i
 
Nikon L840+ +..3.5/5..4/5 Feb 2015 299i
 
Canon 77D..82/1004.5/54.5/54/5 Feb 2017 899 i
 
Canon 200D+ +78/1004.5/54.5/54.5/5 Jun 2017 549i
 
Canon M100+..4/5..3.5/5 Aug 2017 499i
 
Canon SX60+ +75/1004/5..4.5/5 Sep 2014 549i
 
Leica X Typ 113....3.5/5..4/5 Sep 2014 2,295i
 
Nikon B600+..3.5/5..3/5 Jan 2019 349 i
 
Nikon D3500..75/1004/54.5/54.5/5 Aug 2018 429 i
 
Nikon D7500+ +86/1005/54.5/54.5/5 Apr 2017 1,299 i
 
Nikon D5600..79/1004.5/54.5/54/5 Nov 2016 699 i
 
Nikon B500+..4/5..3.5/5 Jan 2016 299i
 
Nikon D5500+79/1004.5/55/54.5/5 Jan 2015 899i
 
Nikon P900..77/1004/54.5/54/5 Mar 2015 599i
 
Nikon D3300+77/1004.5/54.5/54.5/5 Jan 2014 499i
 
Nikon D5300+ +79/1004.5/54.5/54.5/5 Oct 2013 799i
 
Nikon D3200+ +73/1004.5/54.5/54.5/5 Apr 2012 599i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Nikon D3400:
Check Ebay offers
Nikon L840:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D3400 vs Nikon L840

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Nikon D3400 Nikon L840
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Nikon F mount lenses 22.5-855mm f/3-6.5
    Launch Date August 2016 February 2015
    Launch Price USD 499 USD 299
    Sensor Specs Nikon D3400 Nikon L840
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor 1/2.3" Sensor
    Sensor Size 23.5 x 15.6 mm 6.17 x 4.55 mm
    Sensor Area 366.6 mm2 28.0735 mm2
    Sensor Diagonal 28.2 mm 7.7 mm
    Crop Factor 1.5x 5.6x
    Sensor Resolution 24 Megapixels 15.9 Megapixels
    Image Resolution 6000 x 4000 pixels 4608 x 3456 pixels
    Pixel Pitch 3.91 μm 1.33 μm
    Pixel Density 6.55 MP/cm2 56.73 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/60p Video 1080/60i Video
    ISO Setting 100 - 25,600 ISO 100 - 6,400 ISO
    DXO Sensor Quality (score) 86 ..
    DXO Color Depth (bits) 24.8 ..
    DXO Dynamic Range (EV) 13.9 ..
    DXO Low Light (ISO) 1192 ..
    Screen Specs Nikon D3400 Nikon L840
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.57x
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 921k dots 921k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Nikon D3400 Nikon L840
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 5 shutter flaps/s 7.4 shutter flaps/s
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I no
    Connectivity Specs Nikon D3400 Nikon L840
    External Flash Hotshoe no Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Nikon D3400 Nikon L840
    Battery Type EN-EL14a 4xAA
    Battery Life (CIPA)1200 shots per charge590 shots per charge
    Body Dimensions 124 x 98 x 76 mm
    (4.9 x 3.9 x 3.0 in)
    113 x 78 x 96 mm
    (4.4 x 3.1 x 3.8 in)
    Camera Weight 445 g (15.7 oz) 538 g (19.0 oz)

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