Pentax 645Z vs Pentax K-x
49 Imaging
80 Features
74 Overall
77
69 Imaging
52 Features
47 Overall
50
Pentax 645Z vs Pentax K-x Key Specs
(Full Review)
- 51MP - Medium format Sensor
- 3.2" Tilting Display
- ISO 100 - 204800
- No Anti-Alias Filter
- 1920 x 1080 video
- Pentax 645AF2 Mount
- 1550g - 156 x 117 x 123mm
- Revealed April 2014
- Succeeded the Pentax 645D
(Full Review)
- 12MP - APS-C Sensor
- 2.7" Fixed Screen
- ISO 100 - 6400 (Boost to 12800)
- Sensor based Image Stabilization
- 1/6000s Max Shutter
- 1280 x 720 video
- Pentax KAF2 Mount
- 580g - 123 x 92 x 68mm
- Launched December 2009
Pentax 645Z vs Pentax K-x Overview
Let's look a bit more in depth at the Pentax 645Z vs Pentax K-x, one being a Pro DSLR and the latter is a Entry-Level DSLR and both are built by Pentax. There is a crucial difference among the image resolutions of the 645Z (51MP) and K-x (12MP) and the 645Z (Medium format) and K-x (APS-C) enjoy different sensor size.
Meta to Introduce 'AI-Generated' Labels for Media starting next monthThe 645Z was launched 4 years later than the K-x and that is a fairly serious gap as far as camera tech is concerned. Both the cameras come with different body type with the Pentax 645Z being a Large SLR camera and the Pentax K-x being a Compact SLR camera.
Before diving in to a complete comparison, below is a concise view of how the 645Z grades versus the K-x in relation to portability, imaging, features and an overall grade.
Pentax 645Z vs Pentax K-x Gallery
This is a preview of the gallery images for Pentax 645Z and Pentax K-x. The complete galleries are viewable at Pentax 645Z Gallery and Pentax K-x Gallery.
Reasons to pick Pentax 645Z over the Pentax K-x
645Z | K-x | |||
---|---|---|---|---|
Launched | April 2014 | December 2009 | More recent by 53 months | |
Screen type | Tilting | Fixed | Tilting screen | |
Screen dimension | 3.2" | 2.7" | Bigger screen (+0.5") | |
Screen resolution | 1037k | 230k | Sharper screen (+807k dot) |
Reasons to pick Pentax K-x over the Pentax 645Z
K-x | 645Z |
---|
Common features in the Pentax 645Z and Pentax K-x
645Z | K-x | |||
---|---|---|---|---|
Manually focus | More precise focusing | |||
Selfie screen | Neither offers selfie screen | |||
Touch screen | Neither offers Touch screen |
Pentax 645Z vs Pentax K-x Physical Comparison
If you're looking to lug around your camera, you will have to factor in its weight and volume. The Pentax 645Z offers outer dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs) while the Pentax K-x has sizing of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") along with a weight of 580 grams (1.28 lbs).
Contrast the Pentax 645Z vs Pentax K-x in the new Camera with Lens Size Comparison Tool.Always remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilizing during that time. The following is the front view sizing comparison of the 645Z vs the K-x.
Taking into account size and weight, the portability rating of the 645Z and K-x is 49 and 69 respectively.
Pentax 645Z vs Pentax K-x Sensor Comparison
Oftentimes, it is tough to picture the gap in sensor measurements only by going through technical specs. The photograph below will offer you a far better sense of the sensor sizes in the 645Z and K-x.
As you can tell, both cameras posses different resolutions and different sensor measurements. The 645Z because of its bigger sensor is going to make getting shallow depth of field simpler and the Pentax 645Z will provide greater detail utilizing its extra 39 Megapixels. Higher resolution will allow you to crop photographs somewhat more aggressively. The fresher 645Z should have a benefit in sensor tech.
Pentax 645Z vs Pentax K-x Screen and ViewFinder
Photography Type Scores
Portrait Comparison
Street Comparison
Sports Comparison
Travel Comparison
Landscape Comparison
Vlogging Comparison
Pentax 645Z vs Pentax K-x Specifications
Pentax 645Z | Pentax K-x | |
---|---|---|
General Information | ||
Make | Pentax | Pentax |
Model | Pentax 645Z | Pentax K-x |
Class | Pro DSLR | Entry-Level DSLR |
Revealed | 2014-04-15 | 2009-12-23 |
Body design | Large SLR | Compact SLR |
Sensor Information | ||
Processor | PRIME III | Prime |
Sensor type | CMOS | CMOS |
Sensor size | Medium format | APS-C |
Sensor dimensions | 44 x 33mm | 23.6 x 15.8mm |
Sensor surface area | 1,452.0mm² | 372.9mm² |
Sensor resolution | 51 megapixel | 12 megapixel |
Anti aliasing filter | ||
Aspect ratio | 4:3 | 3:2 |
Peak resolution | 8256 x 6192 | 4288 x 2848 |
Highest native ISO | 204800 | 6400 |
Highest enhanced ISO | - | 12800 |
Min native ISO | 100 | 100 |
RAW format | ||
Autofocusing | ||
Focus manually | ||
Touch focus | ||
Autofocus continuous | ||
Autofocus single | ||
Tracking autofocus | ||
Selective autofocus | ||
Autofocus center weighted | ||
Multi area autofocus | ||
Autofocus live view | ||
Face detect autofocus | ||
Contract detect autofocus | ||
Phase detect autofocus | ||
Number of focus points | 27 | 11 |
Lens | ||
Lens mount | Pentax 645AF2 | Pentax KAF2 |
Available lenses | 6 | 151 |
Crop factor | 0.8 | 1.5 |
Screen | ||
Display type | Tilting | Fixed Type |
Display sizing | 3.2 inches | 2.7 inches |
Display resolution | 1,037k dot | 230k dot |
Selfie friendly | ||
Liveview | ||
Touch friendly | ||
Display technology | - | TFT LCD monitor |
Viewfinder Information | ||
Viewfinder | Optical (pentaprism) | Optical (pentamirror) |
Viewfinder coverage | 98 percent | 96 percent |
Viewfinder magnification | 0.85x | 0.57x |
Features | ||
Minimum shutter speed | 30s | 30s |
Fastest shutter speed | 1/4000s | 1/6000s |
Continuous shutter speed | 3.0fps | 5.0fps |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | Yes |
Set white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash range | no built-in flash | 16.00 m |
Flash options | Flash On, Flash On+Red-eye Reduction, Slow-speed Sync, Slow-speed Sync+Red-eye, P-TTL, Trailing Curtain Sync, contrast-control-sync, high-speed sync, wireless sync | Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless |
Hot shoe | ||
AEB | ||
White balance bracketing | ||
Fastest flash sync | 1/125s | 1/180s |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Supported video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) | 1280 x 720 (24 fps), 640 x 416 (24 fps) |
Highest video resolution | 1920x1080 | 1280x720 |
Video format | MPEG-4, H.264 | Motion JPEG |
Mic input | ||
Headphone input | ||
Connectivity | ||
Wireless | None | None |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.0 (5 GBit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | Optional | None |
Physical | ||
Environment seal | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 1550g (3.42 lbs) | 580g (1.28 lbs) |
Dimensions | 156 x 117 x 123mm (6.1" x 4.6" x 4.8") | 123 x 92 x 68mm (4.8" x 3.6" x 2.7") |
DXO scores | ||
DXO Overall score | 101 | 72 |
DXO Color Depth score | 26.0 | 22.8 |
DXO Dynamic range score | 14.7 | 12.5 |
DXO Low light score | 4505 | 811 |
Other | ||
Battery life | 650 pictures | 1900 pictures |
Form of battery | Battery Pack | Battery Pack |
Battery model | D-LI90 | 4 x AA |
Self timer | Yes (2 or 10 secs) | Yes (2 or 12 sec) |
Time lapse feature | ||
Storage media | Dual SD/SDHC/SDXC slots | SD/SDHC card |
Storage slots | 2 | 1 |
Pricing at release | $5,024 | $600 |