Pentax E85 vs Sony RX100
95 Imaging
35 Features
10 Overall
25


91 Imaging
50 Features
68 Overall
57
Pentax E85 vs Sony RX100 Key Specs
(Full Review)
- 12MP - 1/2.3" Sensor
- 2.7" Fixed Display
- ISO 80 - 3200
- 640 x 480 video
- 32-96mm (F2.9-5.2) lens
- 145g - 93 x 58 x 24mm
- Revealed September 2009
(Full Review)
- 20MP - 1" Sensor
- 3" Fixed Screen
- ISO 100 - 25600
- Optical Image Stabilization
- 1920 x 1080 video
- 28-100mm (F1.8-4.9) lens
- 240g - 102 x 58 x 36mm
- Revealed August 2012
- Successor is Sony RX100 II

Pentax E85 vs Sony RX100 Overview
Let's look a bit more closely at the Pentax E85 vs Sony RX100, former is a Small Sensor Compact while the latter is a Large Sensor Compact by manufacturers Pentax and Sony. There is a sizable difference between the resolutions of the E85 (12MP) and RX100 (20MP) and the E85 (1/2.3") and RX100 (1") use different sensor measurements.

The E85 was revealed 3 years prior to the RX100 which is quite a significant difference as far as tech is concerned. Both the cameras come with different body type with the Pentax E85 being a Compact camera and the Sony RX100 being a Large Sensor Compact camera.
Before diving in to a in-depth comparison, below is a concise synopsis of how the E85 matches up versus the RX100 for portability, imaging, features and an overall score.

Pentax E85 vs Sony RX100 Gallery
The following is a preview of the gallery images for Pentax Optio E85 & Sony Cyber-shot DSC-RX100. The full galleries are available at Pentax E85 Gallery & Sony RX100 Gallery.
Reasons to pick Pentax E85 over the Sony RX100
E85 | RX100 |
---|
Reasons to pick Sony RX100 over the Pentax E85
RX100 | E85 | |||
---|---|---|---|---|
Revealed | August 2012 | ![]() | September 2009 | More modern by 35 months |
Manually focus | ![]() | More accurate focus | ||
Screen dimension | 3" | ![]() | 2.7" | Bigger screen (+0.3") |
Screen resolution | 1229k | ![]() | 230k | Crisper screen (+999k dot) |
Common features in the Pentax E85 and Sony RX100
E85 | RX100 | |||
---|---|---|---|---|
Screen type | Fixed | ![]() | Fixed | Fixed screen |
Selfie screen | ![]() | Missing selfie screen | ||
Touch screen | ![]() | Missing Touch screen |
Pentax E85 vs Sony RX100 Physical Comparison
When you are intending to carry around your camera frequently, you should think about its weight and proportions. The Pentax E85 offers outer dimensions of 93mm x 58mm x 24mm (3.7" x 2.3" x 0.9") with a weight of 145 grams (0.32 lbs) while the Sony RX100 has measurements of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") and a weight of 240 grams (0.53 lbs).
Check the Pentax E85 vs Sony RX100 in our brand new Camera plus Lens Size Comparison Tool.
Do not forget, the weight of an ILC will differ dependant on the lens you use at that moment. Underneath is the front view measurements comparison of the E85 vs the RX100.

Using size and weight, the portability rating of the E85 and RX100 is 95 and 91 respectively.

Pentax E85 vs Sony RX100 Sensor Comparison
In many cases, its difficult to imagine the difference between sensor sizes merely by looking at technical specs. The picture below might provide you a far better sense of the sensor dimensions in the E85 and RX100.
As you can tell, both of these cameras posses different resolutions and different sensor sizes. The E85 having a tinier sensor is going to make shooting shallow DOF trickier and the Sony RX100 will give extra detail because of its extra 8MP. Higher resolution will also allow you to crop pictures somewhat more aggressively. The more aged E85 is going to be behind when it comes to sensor tech.

Pentax E85 vs Sony RX100 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax E85 vs Sony RX100 Specifications
Pentax Optio E85 | Sony Cyber-shot DSC-RX100 | |
---|---|---|
General Information | ||
Company | Pentax | Sony |
Model type | Pentax Optio E85 | Sony Cyber-shot DSC-RX100 |
Category | Small Sensor Compact | Large Sensor Compact |
Revealed | 2009-09-17 | 2012-08-28 |
Body design | Compact | Large Sensor Compact |
Sensor Information | ||
Sensor type | CCD | CMOS |
Sensor size | 1/2.3" | 1" |
Sensor dimensions | 6.17 x 4.55mm | 13.2 x 8.8mm |
Sensor area | 28.1mm² | 116.2mm² |
Sensor resolution | 12 megapixel | 20 megapixel |
Anti alias filter | ||
Aspect ratio | 4:3 and 16:9 | 1:1, 4:3, 3:2 and 16:9 |
Full resolution | 4000 x 3000 | 5472 x 3648 |
Max native ISO | 3200 | 25600 |
Lowest native ISO | 80 | 100 |
RAW images | ||
Autofocusing | ||
Focus manually | ||
AF touch | ||
Continuous AF | ||
Single AF | ||
AF tracking | ||
Selective AF | ||
AF center weighted | ||
AF multi area | ||
AF live view | ||
Face detect AF | ||
Contract detect AF | ||
Phase detect AF | ||
Total focus points | - | 25 |
Lens | ||
Lens mount type | fixed lens | fixed lens |
Lens zoom range | 32-96mm (3.0x) | 28-100mm (3.6x) |
Largest aperture | f/2.9-5.2 | f/1.8-4.9 |
Macro focusing distance | 10cm | 5cm |
Focal length multiplier | 5.8 | 2.7 |
Screen | ||
Display type | Fixed Type | Fixed Type |
Display sizing | 2.7" | 3" |
Resolution of display | 230 thousand dot | 1,229 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch functionality | ||
Display technology | - | WhiteMagic TFT LCD |
Viewfinder Information | ||
Viewfinder | None | None |
Features | ||
Lowest shutter speed | 2 secs | 30 secs |
Highest shutter speed | 1/2000 secs | 1/2000 secs |
Continuous shooting speed | 1.0 frames/s | 10.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | - | Yes |
Set WB | ||
Image stabilization | ||
Integrated flash | ||
Flash distance | 3.00 m | - |
Flash options | - | Auto, On, Off, Slow Sync |
Hot shoe | ||
Auto exposure bracketing | ||
White balance bracketing | ||
Highest flash sync | - | 1/2000 secs |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Video resolutions | 640 x 480 (30 fps), 320 x 240 (30 fps) | 1920 x 1080 (60 fps), 1440 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) |
Max video resolution | 640x480 | 1920x1080 |
Video file format | Motion JPEG | MPEG-4, AVCHD |
Mic jack | ||
Headphone jack | ||
Connectivity | ||
Wireless | None | Eye-Fi Connected |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | None | None |
Physical | ||
Environmental seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 145g (0.32 pounds) | 240g (0.53 pounds) |
Dimensions | 93 x 58 x 24mm (3.7" x 2.3" x 0.9") | 102 x 58 x 36mm (4.0" x 2.3" x 1.4") |
DXO scores | ||
DXO All around rating | not tested | 66 |
DXO Color Depth rating | not tested | 22.6 |
DXO Dynamic range rating | not tested | 12.4 |
DXO Low light rating | not tested | 390 |
Other | ||
Battery life | - | 330 pictures |
Style of battery | - | Battery Pack |
Battery ID | D-LI95 | NP-BX1 |
Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec, Portrait 1/2) |
Time lapse recording | With downloadable app | |
Type of storage | SD/SDHC, Internal | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
Storage slots | 1 | 1 |
Cost at launch | $0 | $448 |