Sony Alpha 6300 vs Pentax 645D

In this comparison, we will evaluate the Sony Alpha 6300 and the Pentax 645D, highlighting the advantages of each over the other, discussing their pros and cons, shared strengths and weaknesses, and providing a rating based on their available features and specifications to assist you in choosing the one that best suits your needs.

Sony Alpha 6300 was introduced in February 2016 and Pentax 645D was introduced in March 2010. Let us first list highlights of the models.

Now that we've looked at the most essential specifications and gained a basic understanding of these cameras, we can delve into more details and see the differences between them.

This section shows those features and specifications which are the reason to choose Sony Alpha 6300 over Pentax 645D.

This section shows those features and specifications which are the reason to choose Pentax 645D over Sony Alpha 6300.

We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

Screen

Sony Alpha 6300 and Pentax 645D have 3.0" screens with 922k dot and 921k dot resolutions respectively. Sony Alpha 6300 has a Tilting screen which makes it very useful for photography purposes but not so useful for video shooting. Pentax 645D has a Fixed screen

Viewfinder

Sony Alpha 6300 has a built-in Electronic viewfinder with 2,359k dot resolution and Pentax 645D has a built-in Optical (pentaprism) viewfinder. Sony Alpha 6300 has 100% coverage with 1.07x (0.71x 35mm equivalent) magnification and Pentax 645D has 98% coverage with 0.56x (0.71x 35mm equivalent) magnification.

Sony Alpha 6300 features a 24.2 megapixel APS-C CMOS sensor with dimensions of 23.5 x 15.6 mm and a total area of 366.6 mm². Its native ISO range is 100 - 25,600 and expands to 100 - 51,200 in boosted mode. Pentax 645D features a 40 megapixel Medium format CCD sensor with dimensions of 44 x 33 mm and a total area of 1089 mm². Its native ISO range is 200 - 1,600 and expands to 100 - 1,600 in boosted mode.

Here is a sensor size comparison chart where you can see how different sensors compare with each other:

Sensor size chart

	Sensor	Dimensions	Area	Aspect Ratio	Crop Factor
	Medium Format	44 x 33 mm	1452 mm2	4:3	0.79x
	Full Frame	36 x 24 mm	864 mm2	3:2	1x
	APS-H	27 x 18 mm	486 mm2	3:2	1.3x
	APS-C	23.6 x 15.6 mm	368.2 mm2	3:2	1.5x
	APS-C (Canon)	22.3 x 14.9 mm	332.3 mm2	3:2	1.6x
	Micro Four Thirds	17.4 x 13 mm	226.2 mm2	4:3	2x
	1-inch	13.2 x 8.8 mm	116.2 mm2	3:2	2.7x
	1/1.7-inch	7.44 x 5.58 mm	41.5 mm2	4:3	4.7x
	1/2.3-inch	6.17 x 4.55 mm	28.1 mm2	4:3	5.6x

Sony Alpha 6300 is equipped with BIONZ X processor and can take pictures up to 6000 x 4000 resolution. It can also take pictures with lower resolution like 3:2 (4240 x 2832, 3008 x 2000), 16:9 (6000 x 3376, 4240 x 2400, 3008 x 1688) with 3:2, 16:9 aspect ratios. Pentax 645D is equipped with PRIME II processor and can take pictures up to 7264 x 5440 resolution.

Lens Mount

Sony Alpha 6300 has Sony E lens mount and Pentax 645D has Pentax 645_AF2 lens mount. Due to APS-C sensor in Sony Alpha 6300 its crop factor is equal to 1.5x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 1.5. Due to Medium format sensor in Pentax 645D its crop factor is equal to 0.79x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 0.79.

No Low-Pass Filter on Pentax 645D

There is no optical low-pass filter (OLPF), also known as an anti-aliasing filter, in front of the sensor on Pentax 645D. This results in a slightly sharper image but may also introduce moiré patterns and aliasing artifacts when photographing subjects with fine, repetitive patterns or details.

No Image Stabilization

The cameras do not have image stabilization. On Sony Alpha 6300 it means that you need lenses with optical image stabilization for vibration reduction. As for Pentax 645D nothing can be done. On Pentax 645D it means that you need lenses with optical image stabilization for vibration reduction. As for Sony Alpha 6300 nothing can be done.

Built-in Wi-Fi on Sony Alpha 6300

Sony Alpha 6300 has a built-in Wi-Fi (802.11b/g/n, 2.4 GHz) which allows to easily transfer photos and videos from the camera to other Wi-Fi-enabled devices, such as smartphones, tablets, printers, or computers. This eliminates the need for cables and allows for quick and convenient media sharing and social media integration. It gives you the ability to control your camera remotely using a smartphone or tablet. This is particularly useful for taking self-portraits, group shots, or capturing images in challenging conditions without having to touch the camera. Firmware updates can also be downloaded and installed wirelessly.
  Check out the cameras in our database that have built-in WiFi.

NFC on Sony Alpha 6300

Sony Alpha 6300 has Near Field Communication (NFC) technology which simplifies the process of pairing it with other NFC-enabled devices like smartphones or tablets. It allows to quickly transfer photos and videos or remotely control the camera from compatible device. NFC can also be used for authentication and security purposes. It can verify your identity before accessing certain features or transferring sensitive data. It can be used with NFC-enabled accessories as well, such as lenses, flashes and GPS devices.

USB Inputs and HDMI Outputs

Both models have USB 2.0 (480 Mbit/sec) inputs for data transfer. connector for video signal output.

Battery

Sony Alpha 6300 comes with NP-FW50 battery pack with battery life of 400 shots and Pentax 645D comes with D-LI90 battery pack with battery life of 800 shots.

External Storage Slots

Sony Alpha 6300 has a single SD/SDHC/SDXC card slot. Pentax 645D has Dual SD/SDHC card slots.

Shutter

Shutter speed can go up to 1/4000 sec on Sony Alpha 6300, and up to 1/4000 sec on Pentax 645D. Sony Alpha 6300 can shoot continuously up to 11.0 fps. Pentax 645D can shoot continuously up to 1.1 fps.

Focusing

Sony Alpha 6300 has Fast Hybrid AF (Phase-detection / Contrast-detection) system with 425 focusing points and Pentax 645D has 11 focusing points. Sony Alpha 6300 has detection range from -1 to +20 EV.

Exposure

Exposure meterings of Sony Alpha 6300 and Pentax 645D range from -2 to +20 EV and +2 to +21 EV respectively and you can set the exposure compensation within the ±5 EV range. You can also do exposure bracketing and manual exposure adjustment on Sony Alpha 6300 and exposure lock, exposure bracketing and manual exposure adjustment on Pentax 645D.

Flash

Sony Alpha 6300 has a built-in flash with maximum range of 6.00 m at ISO 100 and also accepts external flash which can be connected via Hot Shoe or Wireless connection. Pentax 645D has no built-in flash but an external flash may be connected via Hot Shoe (P-TTL or high speed sync available) or wireless with PENTAX dedicated flash or X-sync socket. The fastest flash synchronization speed is 1/160 sec on Sony Alpha 6300 and 1/125 sec on Pentax 645D.

Sony Alpha 6300 body has dimensions of 120 x 67 x 49 mm (4.72 x 2.64 x 1.93") and Pentax 645D body has dimensions of 156 x 117 x 119 mm (6.14 x 4.61 x 4.69"). Sony Alpha 6300 weighs 404 g (0.89 lb / 14.25 oz) and Pentax 645D weighs 1480 g (3.26 lb / 52.21 oz).

Sony Alpha 6300

Pentax 645D

120 mm

67 mm

156 mm

117 mm

67 mm

117 mm

49 mm

119 mm