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Nikon D300 vs Pentax K-3

The Nikon D300 and the Pentax K-3 are two enthusiast cameras that were revealed to the public, respectively, in August 2007 and October 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Nikon has a resolution of 12.2 megapixels, whereas the Pentax provides 24.1 MP.

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

Headline Specifications
Nikon D300   Pentax K-3
Nikon D300 Pentax K-3
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Pentax K mount lenses
12.2 MP, APS-C Sensor 24.1 MP, APS-C Sensor
no Video 1080/60i Video
ISO 200-3200 (100-6400) ISO 100-51200
Optical viewfinder Optical viewfinder
3.0" LCD, 922k dots 3.2" LCD, 1037k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
6 shutter flaps per second 8.3 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
1000 shots per battery charge560 shots per battery charge
147 x 114 x 74 mm, 925 g 131 x 100 x 77 mm, 800 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D300 and the Pentax K-3? 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: Nikon D300 vs Pentax K-3

An illustration of the physical size and weight of the Nikon D300 and the Pentax K-3 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

The K-3 can be obtained in two different colors (black, silver), while the D300 is only available in black.

Size Nikon D300 vs Pentax K-3
Compare D300 versus K-3 top
Comparison D300 or K-3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 is notably smaller (22 percent) than the Nikon D300. Moreover, the K-3 is markedly lighter (14 percent) than the D300. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the D300 gets 1000 shots out of its EN-EL3e battery, while the K-3 can take 560 images on a single charge of its D-LI90 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D300» 5.8 in 4.5 in 2.9 in 32.6 oz 1000 Y Aug 2007 1,799- i Nikon D300
 
Pentax K-3« 5.2 in 3.9 in 3.0 in 28.2 oz 560 Y Oct 2013 1,299- i Pentax K-3
 
Nikon D7000« » 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499- i Nikon D7000
 
Nikon D300S« » 5.8 in 4.5 in 3.2 in 33.1 oz 950 Y Jul 2009 1,799- i Nikon D300S
 
Nikon D60« » 5.0 in 3.7 in 2.5 in 18.4 oz 500 n Jan 2008 629- i Nikon D60
 
Nikon D90« » 5.2 in 4.1 in 3.0 in 24.8 oz 850 n Aug 2008 1,299- i Nikon D90
 
Nikon D700« » 5.8 in 4.8 in 3.0 in 37.9 oz 1000 Y Jul 2008 2,999- i Nikon D700
 
Nikon D40X« » 4.9 in 3.7 in 2.5 in 18.4 oz 520 n Mar 2007 729- i Nikon D40X
 
Nikon D2Xs« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Jun 2006 4,699- i Nikon D2Xs
 
Nikon D80« » 5.2 in 4.1 in 3.0 in 23.6 oz 600 n Aug 2006 999- i Nikon D80
 
Nikon D200« » 5.8 in 4.4 in 2.9 in 32.5 oz 400 Y Nov 2005 1,699- i Nikon D200
 
Nikon D2X« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Sep 2004 4,999- i Nikon D2X
 
Pentax KP« » 5.2 in 4.0 in 3.0 in 24.8 oz 390 Y Jan 2017 1,099 i i Pentax KP
 
Pentax K-70« » 5.0 in 3.7 in 2.9 in 24.3 oz 410 Y Jun 2016 649 i i Pentax K-70
 
Pentax K-3 II« » 5.2 in 3.9 in 3.0 in 28.2 oz 720 Y Apr 2015 1,099 i i Pentax K-3 II
 
Pentax K-5« » 5.2 in 3.8 in 2.9 in 26.8 oz 740 Y Sep 2010 1,099- i Pentax K-5
 
Sony A77« » 5.6 in 4.1 in 3.2 in 25.8 oz 470 Y Aug 2011 1,399- i Sony A77
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The K-3 was launched at a markedly lower price (by 28 percent) than the D300, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

 

Sensor comparison: Nikon D300 vs Pentax K-3

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the K-3 is 2 percent smaller. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of underlying technology, both cameras are build around CMOS sensors.

Nikon D300 and Pentax K-3 sensor measures

Despite having a slightly smaller sensor, the K-3 offers a higher resolution of 24.1 megapixels, compared with 12.2 MP of the D300. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.90μm versus 5.53μm for the D300). However, it should be noted that the K-3 is much more recent (by 6 years and 1 month) than the D300, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the K-3 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax K-3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 for good quality output (200 dots per inch) amounts to 30.1 x 20 inch or 76.4 x 50.8 cm, for very good quality (250 dpi) 24.1 x 16 inch or 61.1 x 40.6 cm, and for excellent quality (300 dpi) 20.1 x 13.3 inch or 50.9 x 33.9 cm. The corresponding values for the Nikon D300 are 21.4 x 14.2 inch or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inch or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inch or 36.3 x 24.1 cm for excellent quality prints.

The Nikon D300 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Pentax K-3 are ISO 100 to ISO 51200 (no boost).

D300 versus K-3 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. Of the two cameras under consideration, the K-3 offers substantially better image quality than the D300 (overall score 13 points higher). The advantage is based on 1.6 bits higher color depth, 1.4 EV in additional dynamic range, and 0.8 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Nikon D300» APS-C 12.2 4288 2848-22.112.067967Nikon D300
 
Pentax K-3« APS-C 24.1 6016 40001080/60i23.713.4121680Pentax K-3
 
Nikon D7000« » APS-C 16.1 4928 326410800/24p23.513.9116780Nikon D7000
 
Nikon D300S« » APS-C 12.2 4288 2848720/24p22.512.278770Nikon D300S
 
Nikon D60« » APS-C 10.0 3872 2592-22.511.456265Nikon D60
 
Nikon D90« » APS-C 12.2 4288 2848720/24p22.712.597773Nikon D90
 
Nikon D700« » Full Frame 12.1 4256 2832-23.512.2230380Nikon D700
 
Nikon D40X« » APS-C 10.0 3872 2592-22.411.451663Nikon D40X
 
Nikon D2Xs« » APS-C 12.2 4288 2848-22.210.948959Nikon D2Xs
 
Nikon D80« » APS-C 10.0 3872 2592-22.111.252461Nikon D80
 
Nikon D200« » APS-C 10.0 3872 2592-22.311.558364Nikon D200
 
Nikon D2X« » APS-C 12.2 4288 2848-22.110.947659Nikon D2X
 
Pentax KP« » APS-C 24.1 6016 40001080/60i----Pentax KP
 
Pentax K-70« » APS-C 24.0 6000 40001080/60i----Pentax K-70
 
Pentax K-3 II« » APS-C 24.1 6016 40001080/60i23.613.6110680Pentax K-3 II
 
Pentax K-5« » APS-C 16.1 4928 32641080/25p23.714.1116282Pentax K-5
 
Sony A77« » APS-C 24.0 6000 40001080/60p24.013.280178Sony A77

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The K-3 indeed provides for movie recording, while the D300 does not. The highest resolution format that the K-3 can use is 1080/60i.

 

Feature comparison: Nikon D300 vs Pentax K-3

Beyond body and sensor, cameras can and do differ across a range of features. The D300 and the K-3 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinders of both cameras offer the same field of view (100%), as well as the same magnification (0.63x). The adjacent table lists some of the other core features of the Nikon D300 and Pentax K-3 along with similar information for a selection of comparators.

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
Camera
Model
 
Nikon D300»optical Y 3.0 922 fixed n 1/8000s 6.0 Y n Nikon D300
 
Pentax K-3«optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y Pentax K-3
 
Nikon D7000« »optical Y 3.0 921 fixed n 1/8000s 6.0 Y n Nikon D7000
 
Nikon D300S« »optical Y 3.0 920 fixed n 1/8000s 7.0 Y n Nikon D300S
 
Nikon D60« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Nikon D60
 
Nikon D90« »optical Y 3.0 920 fixed n 1/4000s 4.5 Y n Nikon D90
 
Nikon D700« »optical Y 3.0 922 fixed n 1/8000s 8.0 Y n Nikon D700
 
Nikon D40X« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Nikon D40X
 
Nikon D2Xs« »optical Y 2.5 230 fixed n 1/8000s 5.0 n n Nikon D2Xs
 
Nikon D80« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Nikon D80
 
Nikon D200« »optical Y 2.5 230 fixed n 1/8000s 5.0 Y n Nikon D200
 
Nikon D2X« »optical Y 2.5 235 fixed n 1/8000s 5.0 n n Nikon D2X
 
Pentax KP« »optical n 3.0 921 tilting n 1/6000s 7.0 Y Y Pentax KP
 
Pentax K-70« »optical n 3.0 921 swivel n 1/6000s 6.0 Y Y Pentax K-70
 
Pentax K-3 II« »optical Y 3.2 1037 fixed n 1/8000s 8.3 n Y Pentax K-3 II
 
Pentax K-5« »optical Y 3.0 921 fixed n 1/8000s 7.0 Y Y Pentax K-5
 
Sony A77« »2359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y Sony A77

One feature that differentiates the K-3 and the D300 is in-body image stabilization (IBIS). The K-3 reduces the risk of handshake-induced blur with all attached lenses, while the D300 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

The Nikon D300 and the Pentax K-3 both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The D300 writes its imaging data to Compact Flash cards, while the K-3 uses SDXC cards. The K-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D300 only has one slot.

 

Connectivity comparison: Nikon D300 vs Pentax K-3

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 D300 and Pentax K-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Nikon D300»Y----mini2.0---Nikon D300
 
Pentax K-3«YmonomonoYYmini3.0---Pentax K-3
 
Nikon D7000« »YmonomonoY-mini2.0---Nikon D7000
 
Nikon D300S« »YstereomonoY-mini2.0---Nikon D300S
 
Nikon D60« »Y-----2.0---Nikon D60
 
Nikon D90« »Ymonomono--mini2.0---Nikon D90
 
Nikon D700« »Y----mini2.0---Nikon D700
 
Nikon D40X« »Y-----2.0---Nikon D40X
 
Nikon D2Xs« »Y-----2.0---Nikon D2Xs
 
Nikon D80« »Y-----2.0---Nikon D80
 
Nikon D200« »Y-----2.0---Nikon D200
 
Nikon D2X« »Y-----2.0---Nikon D2X
 
Pentax KP« »YstereomonoY--2.0Y--Pentax KP
 
Pentax K-70« »YstereomonoY-mini2.0Y--Pentax K-70
 
Pentax K-3 II« »YmonomonoYYmini3.0---Pentax K-3 II
 
Pentax K-5« »YstereomonoY-mini2.0---Pentax K-5
 
Sony A77« »YstereomonoY-mini2.0---Sony A77

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the D300 and the K-3 have been discontinued, but can regularly be found used on eBay. The D300 was replaced by the Nikon D300S, while the K-3 was followed by the Pentax K-3 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Pentax websites.


Review summary: Nikon D300 vs Pentax K-3

So what is the bottom line? Is the Nikon D300 better than the Pentax K-3 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Nikon D300:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Longer lasting: Can take more shots (1000 versus 560) on a single battery charge.
  • More heavily discounted: Has been available for much longer (launched in August 2007).

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Advantages of the Pentax K-3:

  • More detail: Has more megapixels (24.1 vs 12.2MP), which boosts linear resolution by 40%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (13 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60i video.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 922k dots).
  • Faster burst: Shoots at higher frequency (8.3 vs 6 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (131x100mm vs 147x114mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 125g or 14 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More affordable: Was introduced into a lower priced category (28 percent cheaper at launch).
  • More modern: Reflects 6 years and 1 month of technical progress since the D300 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the K-3 is the clear winner of the contest (17 : 3 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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.

D300 03:17 K-3

How about other alternatives? Do the specifications of the Nikon D300 and the Pentax K-3 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the D300 or the K-3 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews: Nikon D300 vs Pentax K-3

This is why hands-on reviews by experts 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D300»+ ++ +5/5o4.5/5 Aug 2007 1,799- i Nikon D300
 
Pentax K-3«-83/1005/54.5/55/5 Oct 2013 1,299- i Pentax K-3
 
Nikon D7000« »-80/1004.5/55/54.5/5 Sep 2010 1,499- i Nikon D7000
 
Nikon D300S« »+ +82/1004/55/54.5/5 Jul 2009 1,799- i Nikon D300S
 
Nikon D60« »80/100+ +4/5o4.5/5 Jan 2008 629- i Nikon D60
 
Nikon D90« »+ ++ +4/55/54.5/5 Aug 2008 1,299- i Nikon D90
 
Nikon D700« »89/100+ +4.5/55/54.5/5 Jul 2008 2,999- i Nikon D700
 
Nikon D40X« »79/100+ +4/5o4/5 Mar 2007 729- i Nikon D40X
 
Nikon D2Xs« »---o- Jun 2006 4,699- i Nikon D2Xs
 
Nikon D80« »++ +o4.5/54.5/5 Aug 2006 999- i Nikon D80
 
Nikon D200« »+ ++ +o5/5- Nov 2005 1,699- i Nikon D200
 
Nikon D2X« »-+ +-o- Sep 2004 4,999- i Nikon D2X
 
Pentax KP« »-82/1005/5-4.5/5 Jan 2017 1,099 i i Pentax KP
 
Pentax K-70« »-79/1004.5/54/54.5/5 Jun 2016 649 i i Pentax K-70
 
Pentax K-3 II« »--5/54.5/55/5 Apr 2015 1,099 i i Pentax K-3 II
 
Pentax K-5« »-83/1005/54.5/54.5/5 Sep 2010 1,099- i Pentax K-5
 
Sony A77« »91/10081/100-4.5/55/5 Aug 2011 1,399- i Sony A77
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Nikon D300:
Check Ebay offers
Pentax K-3:
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 your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D300 vs Pentax K-3

    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 D300 Pentax K-3
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Pentax K mount lenses
    Launch Date August 2007 October 2013
    Launch Price USD 1799 USD 1299
    Sensor Specs Nikon D300 Pentax K-3
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.8 mm 23.5 x 15.6 mm
    Sensor Area 372.88 mm2 366.6 mm2
    Sensor Diagonal 28.4 mm 28.2 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 12.2 Megapixels 24.1 Megapixels
    Image Resolution 4288 x 2848 pixels 6016 x 4000 pixels
    Pixel Pitch 5.53 μm 3.90 μm
    Pixel Density 3.28 MP/cm2 6.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 1080/60i Video
    ISO Setting 200-3200 ISO 100-51200 ISO
    ISO Boost 100-6400 ISO no Enhancement
    Image Processor EXPEED PRIME III
    DXO Sensor Quality (score) 67 80
    DXO Color Depth (bits) 22.1 23.7
    DXO Dynamic Range (EV) 12.0 13.4
    DXO Low Light (ISO) 679 1216
    Screen Specs Nikon D300 Pentax K-3
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.63x 0.63x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.2 inch
    LCD Resolution 922k dots 1037k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D300 Pentax K-3
    Autofocus System Phase-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 6 shutter flaps/s 8.3 shutter flaps/s
    Shutter Life Expectancy150 000 actuations200 000 actuations
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium CF cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    Connectivity Specs Nikon D300 Pentax K-3
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D300 Pentax K-3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL3e power pack D-LI90 power pack
    Battery Life (CIPA)1000 shots per charge560 shots per charge
    Body Dimensions 147 x 114 x 74 mm
    (5.8 x 4.5 x 2.9 in)
    131 x 100 x 77 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 925 g (32.6 oz) 800 g (28.2 oz)

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