Pentax 645Z vs Pentax S1
49 Imaging
80 Features
74 Overall
77
93 Imaging
37 Features
31 Overall
34
Pentax 645Z vs Pentax S1 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
- Launched April 2014
- Replaced the Pentax 645D
(Full Review)
- 14MP - 1/2.3" Sensor
- 2.7" Fixed Display
- ISO 80 - 6400
- Sensor-shift Image Stabilization
- 1280 x 720 video
- 28-140mm (F3.5-5.5) lens
- 157g - 114 x 58 x 28mm
- Announced March 2011
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In this article, we are contrasting the Pentax 645Z vs Pentax S1, former is a Pro DSLR while the other is a Small Sensor Compact and both are manufactured by Pentax. There is a large difference among the resolutions of the 645Z (51MP) and S1 (14MP) and the 645Z (Medium format) and S1 (1/2.3") possess different sensor sizing.
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe 645Z was manufactured 3 years after the S1 which is a fairly serious difference as far as camera tech is concerned. Each of these cameras offer different body type with the Pentax 645Z being a Large SLR camera and the Pentax S1 being a Compact camera.
Before going straight into a in depth comparison, below is a simple summation of how the 645Z matches up versus the S1 in regards to portability, imaging, features and an overall score.
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Following is a sample of the gallery pictures for Pentax 645Z & Pentax Optio S1. The entire galleries are viewable at Pentax 645Z Gallery & Pentax S1 Gallery.
Reasons to pick Pentax 645Z over the Pentax S1
| 645Z | S1 | |||
|---|---|---|---|---|
| Announced | April 2014 |  | March 2011 | More modern by 38 months |
| Display type | Tilting |  | Fixed | Tilting display |
| Display sizing | 3.2" |  | 2.7" | Larger display (+0.5") |
| Display resolution | 1037k |  | 230k | Sharper display (+807k dot) |
Reasons to pick Pentax S1 over the Pentax 645Z
| S1 | 645Z |
|---|
Common features in the Pentax 645Z and Pentax S1
| 645Z | S1 | |||
|---|---|---|---|---|
| Manual focus |  | Very exact focusing | ||
| Selfie screen |  | Neither has selfie screen | ||
| Touch friendly display |  | Neither has Touch friendly display |
Pentax 645Z vs Pentax S1 Physical Comparison
When you are looking to carry around your camera regularly, you will want to consider its weight and proportions. The Pentax 645Z has outer dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs) while the Pentax S1 has measurements of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") having a weight of 157 grams (0.35 lbs).
Compare the Pentax 645Z vs Pentax S1 in our brand new Camera & Lens Size Comparison Tool.
Remember, the weight of an ILC will differ dependant on the lens you have at that time. The following is the front view over all size comparison of the 645Z versus the S1.
Considering size and weight, the portability rating of the 645Z and S1 is 49 and 93 respectively.
Pentax 645Z vs Pentax S1 Sensor Comparison
Generally, it can be difficult to visualize the contrast in sensor sizes simply by seeing specs. The pic underneath may provide you a better sense of the sensor sizes in the 645Z and S1.
All in all, each of these cameras enjoy different megapixels and different sensor sizes. The 645Z due to its larger sensor is going to make achieving bokeh simpler and the Pentax 645Z will produce greater detail due to its extra 37 Megapixels. Greater resolution will enable you to crop pics far more aggressively. The more recent 645Z should have a benefit when it comes to sensor tech.
Pentax 645Z vs Pentax S1 Screen and ViewFinder
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Pentax 645Z vs Pentax S1 Specifications
| Pentax 645Z | Pentax Optio S1 | |
|---|---|---|
| General Information | ||
| Manufacturer | Pentax | Pentax |
| Model type | Pentax 645Z | Pentax Optio S1 |
| Class | Pro DSLR | Small Sensor Compact |
| Launched | 2014-04-15 | 2011-03-02 |
| Body design | Large SLR | Compact |
| Sensor Information | ||
| Chip | PRIME III | - |
| Sensor type | CMOS | CCD |
| Sensor size | Medium format | 1/2.3" |
| Sensor dimensions | 44 x 33mm | 6.17 x 4.55mm |
| Sensor surface area | 1,452.0mm² | 28.1mm² |
| Sensor resolution | 51MP | 14MP |
| Anti alias filter | ||
| Aspect ratio | 4:3 | 1:1, 4:3 and 16:9 |
| Peak resolution | 8256 x 6192 | 4288 x 3216 |
| Highest native ISO | 204800 | 6400 |
| Minimum native ISO | 100 | 80 |
| RAW files | ||
| Autofocusing | ||
| Focus manually | ||
| Touch to focus | ||
| Continuous autofocus | ||
| Single autofocus | ||
| Autofocus tracking | ||
| Selective autofocus | ||
| Autofocus center weighted | ||
| Autofocus multi area | ||
| Autofocus live view | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Total focus points | 27 | 9 |
| Lens | ||
| Lens mount type | Pentax 645AF2 | fixed lens |
| Lens zoom range | - | 28-140mm (5.0x) |
| Maximum aperture | - | f/3.5-5.5 |
| Macro focusing range | - | 1cm |
| Amount of lenses | 6 | - |
| Focal length multiplier | 0.8 | 5.8 |
| Screen | ||
| Range of display | Tilting | Fixed Type |
| Display diagonal | 3.2 inches | 2.7 inches |
| Resolution of display | 1,037 thousand dot | 230 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch function | ||
| Display technology | - | TFT color LCD with Anti-reflective coating |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | None |
| Viewfinder coverage | 98% | - |
| Viewfinder magnification | 0.85x | - |
| Features | ||
| Minimum shutter speed | 30 seconds | 4 seconds |
| Fastest shutter speed | 1/4000 seconds | 1/1500 seconds |
| Continuous shutter speed | 3.0fps | 1.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | Yes | - |
| Custom white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | no built-in flash | 3.90 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, Soft |
| External flash | ||
| AE bracketing | ||
| White balance bracketing | ||
| Fastest flash sync | 1/125 seconds | - |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) | 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 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 | ||
| Environmental seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 1550 grams (3.42 lb) | 157 grams (0.35 lb) |
| Dimensions | 156 x 117 x 123mm (6.1" x 4.6" x 4.8") | 114 x 58 x 28mm (4.5" x 2.3" x 1.1") |
| DXO scores | ||
| DXO Overall rating | 101 | not tested |
| DXO Color Depth rating | 26.0 | not tested |
| DXO Dynamic range rating | 14.7 | not tested |
| DXO Low light rating | 4505 | not tested |
| Other | ||
| Battery life | 650 pictures | 260 pictures |
| Battery format | Battery Pack | Battery Pack |
| Battery ID | D-LI90 | D-LI92 |
| Self timer | Yes (2 or 10 secs) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | Dual SD/SDHC/SDXC slots | SD/SDHC/SDXC, Internal |
| Storage slots | 2 | 1 |
| Pricing at release | $5,024 | $174 |