Pentax 645D vs Ricoh G900
50 Imaging
76 Features
52 Overall
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89 Imaging
47 Features
46 Overall
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Pentax 645D vs Ricoh G900 Key Specs
(Full Review)
- 40MP - Medium format Sensor
- 3" Fixed Display
- ISO 200 - 1600
- No Anti-Alias Filter
- No Video
- Pentax 645AF2 Mount
- 1480g - 156 x 117 x 119mm
- Launched March 2010
- Newer Model is Pentax 645Z
(Full Review)
- 20MP - 1/2.3" Sensor
- 3" Fixed Display
- ISO 125 - 6400
- Digital Image Stabilization
- 3840 x 2160 video
- 28-140mm (F3.5-5.5) lens
- 247g - 118 x 66 x 33mm
- Revealed February 2018
Pentax 645D vs Ricoh G900 Overview
Let's look a little more in depth at the Pentax 645D vs Ricoh G900, former is a Pro DSLR while the other is a Waterproof by manufacturers Pentax and Ricoh. There is a substantial difference among the image resolutions of the 645D (40MP) and G900 (20MP) and the 645D (Medium format) and G900 (1/2.3") come with different sensor sizing.
Europe Approves Revolutionary AI LegislationThe 645D was brought out 9 years prior to the G900 which is a fairly big difference as far as camera tech is concerned. Both cameras offer different body type with the Pentax 645D being a Large SLR camera and the Ricoh G900 being a Compact camera.
Before we go straight into a in-depth comparison, below is a concise synopsis of how the 645D grades against the G900 in the way of portability, imaging, features and an overall mark.
Pentax 645D vs Ricoh G900 Gallery
The following is a sample of the gallery pictures for Pentax 645D & Ricoh G900. The entire galleries are available at Pentax 645D Gallery & Ricoh G900 Gallery.
Reasons to pick Pentax 645D over the Ricoh G900
645D | G900 |
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Reasons to pick Ricoh G900 over the Pentax 645D
G900 | 645D | |||
---|---|---|---|---|
Revealed | February 2018 | March 2010 | Newer by 96 months | |
Display resolution | 1040k | 921k | Sharper display (+119k dot) |
Common features in the Pentax 645D and Ricoh G900
645D | G900 | |||
---|---|---|---|---|
Manually focus | More exact focusing | |||
Display type | Fixed | Fixed | Fixed display | |
Display sizing | 3" | 3" | Equivalent display measurement | |
Selfie screen | Lacking selfie screen | |||
Touch friendly display | Neither has Touch friendly display |
Pentax 645D vs Ricoh G900 Physical Comparison
In case you're going to travel with your camera regularly, you will have to think about its weight and dimensions. The Pentax 645D has outside measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs) while the Ricoh G900 has dimensions of 118mm x 66mm x 33mm (4.6" x 2.6" x 1.3") accompanied by a weight of 247 grams (0.54 lbs).
See the Pentax 645D vs Ricoh G900 in our brand new Camera & Lens Size Comparison Tool.Always remember, the weight of an ILC will differ depending on the lens you are working with at that moment. Underneath is the front view dimensions comparison of the 645D against the G900.
Taking into account size and weight, the portability grade of the 645D and G900 is 50 and 89 respectively.
Pentax 645D vs Ricoh G900 Sensor Comparison
In many cases, it is difficult to visualize the contrast in sensor dimensions merely by going through specs. The pic here will help provide you a better sense of the sensor measurements in the 645D and G900.
All in all, both of the cameras offer different megapixel count and different sensor dimensions. The 645D due to its larger sensor is going to make achieving shallow DOF easier and the Pentax 645D will show greater detail having its extra 20MP. Greater resolution will also allow you to crop photos a little more aggressively. The more aged 645D will be behind in sensor tech.
Pentax 645D vs Ricoh G900 Screen and ViewFinder
Photography Type Scores
Portrait Comparison
Street Comparison
Sports Comparison
Travel Comparison
Landscape Comparison
Vlogging Comparison
Pentax 645D vs Ricoh G900 Specifications
Pentax 645D | Ricoh G900 | |
---|---|---|
General Information | ||
Brand | Pentax | Ricoh |
Model type | Pentax 645D | Ricoh G900 |
Type | Pro DSLR | Waterproof |
Launched | 2010-03-10 | 2018-02-21 |
Body design | Large SLR | Compact |
Sensor Information | ||
Chip | Prime II | - |
Sensor type | CCD | BSI-CMOS |
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 | 40MP | 20MP |
Anti alias filter | ||
Aspect ratio | 4:3 | 1:1, 4:3 and 3:2 |
Full resolution | 7264 x 5440 | 5184 x 3888 |
Max native ISO | 1600 | 6400 |
Lowest native ISO | 200 | 125 |
RAW pictures | ||
Lowest boosted ISO | 100 | - |
Autofocusing | ||
Focus manually | ||
Touch focus | ||
AF continuous | ||
AF single | ||
Tracking AF | ||
AF selectice | ||
AF center weighted | ||
Multi area AF | ||
Live view AF | ||
Face detect AF | ||
Contract detect AF | ||
Phase detect AF | ||
Total focus points | 11 | 9 |
Lens | ||
Lens mount type | Pentax 645AF2 | fixed lens |
Lens zoom range | - | 28-140mm (5.0x) |
Highest aperture | - | f/3.5-5.5 |
Macro focusing range | - | 1cm |
Amount of lenses | 6 | - |
Crop factor | 0.8 | 5.8 |
Screen | ||
Range of display | Fixed Type | Fixed Type |
Display sizing | 3 inches | 3 inches |
Resolution of display | 921k dot | 1,040k dot |
Selfie friendly | ||
Liveview | ||
Touch friendly | ||
Display technology | TFT Color LCD with wide-viewing angle and with AR coating | - |
Viewfinder Information | ||
Viewfinder | Optical (pentaprism) | None |
Viewfinder coverage | 98 percent | - |
Viewfinder magnification | 0.85x | - |
Features | ||
Slowest shutter speed | 30 seconds | 4 seconds |
Maximum shutter speed | 1/4000 seconds | 1/4000 seconds |
Continuous shooting speed | 1.0fps | - |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | - |
Custom WB | ||
Image stabilization | ||
Built-in flash | ||
Flash distance | no built-in flash | 5.50 m (with Auto ISO) |
Flash settings | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain | Flash on, flash off |
Hot shoe | ||
Auto exposure bracketing | ||
WB bracketing | ||
Maximum flash sync | 1/125 seconds | - |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Video resolutions | - | 3840x2160 |
Max video resolution | None | 3840x2160 |
Video format | - | MPEG-4, H.264 |
Mic jack | ||
Headphone jack | ||
Connectivity | ||
Wireless | None | Supports FlashAir SD cards |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | DB-110 lithium-ion battery & USB charger |
GPS | None | Built-in |
Physical | ||
Environment seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 1480 gr (3.26 lb) | 247 gr (0.54 lb) |
Dimensions | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") | 118 x 66 x 33mm (4.6" x 2.6" x 1.3") |
DXO scores | ||
DXO All around rating | 82 | not tested |
DXO Color Depth rating | 24.6 | not tested |
DXO Dynamic range rating | 12.6 | not tested |
DXO Low light rating | 1262 | not tested |
Other | ||
Battery life | 800 images | 340 images |
Battery form | Battery Pack | Battery Pack |
Battery ID | D-LI90 | - |
Self timer | Yes (2 or 10 sec) | Yes |
Time lapse shooting | ||
Type of storage | SD/SDHC | Internal + SD/SDHC/SDXC card |
Storage slots | Dual | One |
Price at launch | $4,000 | $752 |