Pentax 645Z vs Pentax K-3
Compare key differences and full specifications to find the camera that suits your photography.
Key differences
- Year: Pentax 645Z: 2014 ; Pentax K-3: 2013
- Weight: Pentax 645Z: 1550 g ; Pentax K-3: 800 g
- Sensor size: Pentax 645Z: 44 x 33 mm ; Pentax K-3: 23.5 x 15.6 mm
- Sensor resolution: Pentax 645Z: 8269 x 6217 ; Pentax K-3: 6064 x 4016
- Effective megapixels: Pentax 645Z: 51.4 ; Pentax K-3: 24.35
Best for
Larger prints and more cropping detail: Pentax 645Z (51.4).
| Specification | Pentax 645Z | Pentax K-3 |
|---|---|---|
| General | ||
| Brand | Pentax | Pentax |
| Model | 645Z | K-3 |
| Year | 2014 | 2013 |
| Body | ||
| Dimensions | 156 x 117 x 123 mm | 131.5 x 100 x 77.5 mm |
| Weight | 1550 g | 800 g |
| Sensor | ||
| Sensor type | CMOS | CMOS |
| Sensor size | 44 x 33 mm | 23.5 x 15.6 mm |
| Sensor resolution | 8269 x 6217 | 6064 x 4016 |
| Crop factor | 0.79 | 1.53 |
| Total megapixels | 52.99 | 24.71 |
| Effective megapixels | 51.4 | 24.35 |
| Image | ||
| Max. image resolution | 8256 x 6192 | 6016 x 4000 |
| ISO | Auto, 100-204800 | Auto, 100 - 51200 |
| Exposure & Shutter | ||
| Min. shutter speed | 30 sec | 30 sec |
| Max. shutter speed | 1/4000 sec | 1/8000 sec |
| Metering | Multi, Center-weighted, Spot | Multi, Center-weighted, Spot |
| Exposure compensation | ±5 EV (in 1/3 EV, 1/2 EV steps) | ±5 EV (in 1/3 EV, 1/2 EV steps) |
| Aperture priority | Yes | Yes |
| Shutter priority | Yes | Yes |
| White balance presets | 10.0 | 9.0 |
| Video | ||
| Max. video mode | 1920x1080 (60i/50i/30p/25p/24p) | — |
| Display & Viewfinder | ||
| Screen size | 3.2" | 3.2" |
| Screen resolution | 1,037,000 dots | 1,037,000 dots |
| Viewfinder | Optical (pentaprism) | Optical (pentaprism) |
| Storage & Connectivity | ||
| Storage types | SD/SDHC/SDXC | Dual SD/SDHC/SDXC |
| USB | USB 3.0 (5 GBit/sec) | USB 3.0 (5 GBit/sec) |
| Power | ||
| Battery | Rechargeable Lithium-ion Battery D-LI90 | Rechargeable Lithium-ion Battery D-LI90 |
| Lens & Focus | ||
| Digital zoom | — | No |