Olympus E-330 vs Pentax K20D
65 Imaging
40 Features
40 Overall
40
59 Imaging
53 Features
52 Overall
52
Olympus E-330 vs Pentax K20D Key Specs
(Full Review)
- 7MP - Four Thirds Sensor
- 2.5" Tilting Display
- ISO 100 - 400 (Push to 1600)
- No Video
- Micro Four Thirds Mount
- 616g - 140 x 87 x 72mm
- Introduced March 2006
- Also referred to as EVOLT E-330
- Succeeded the Olympus E-300
- Later Model is Olympus E-450
(Full Review)
- 15MP - APS-C Sensor
- 2.7" Fixed Screen
- ISO 100 - 3200 (Push to 6400)
- Sensor based Image Stabilization
- No Video
- Pentax KAF2 Mount
- 800g - 142 x 101 x 70mm
- Introduced June 2008
- Old Model is Pentax K10D
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Following is a complete analysis of the Olympus E-330 vs Pentax K20D, both Advanced DSLR digital cameras by companies Olympus and Pentax. There exists a large gap between the image resolutions of the E-330 (7MP) and K20D (15MP) and the E-330 (Four Thirds) and K20D (APS-C) offer different sensor sizing.
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe E-330 was brought out 3 years earlier than the K20D which is quite a serious difference as far as technology is concerned. Both of the cameras feature the same body design (Mid-size SLR).
Before we go right into a in depth comparison, here is a simple summary of how the E-330 matches up against the K20D with respect to portability, imaging, features and an overall score.
Photography Glossary Olympus E-330 vs Pentax K20D Gallery
Here is a preview of the gallery images for Olympus E-330 & Pentax K20D. The entire galleries are viewable at Olympus E-330 Gallery & Pentax K20D Gallery.
Reasons to pick Olympus E-330 over the Pentax K20D
| E-330 | K20D | |||
|---|---|---|---|---|
| Screen type | Tilting | Fixed | Tilting screen |
Reasons to pick Pentax K20D over the Olympus E-330
| K20D | E-330 | |||
|---|---|---|---|---|
| Introduced | June 2008 | March 2006 | More modern by 27 months | |
| Screen size | 2.7" | 2.5" | Bigger screen (+0.2") | |
| Screen resolution | 230k | 215k | Sharper screen (+15k dot) |
Common features in the Olympus E-330 and Pentax K20D
| E-330 | K20D | |||
|---|---|---|---|---|
| Manual focus | Very accurate focusing | |||
| Selfie screen | Neither offers selfie screen | |||
| Touch screen | Lack of Touch screen |
Olympus E-330 vs Pentax K20D Physical Comparison
When you are aiming to carry around your camera frequently, you will want to factor its weight and dimensions. The Olympus E-330 offers external dimensions of 140mm x 87mm x 72mm (5.5" x 3.4" x 2.8") accompanied by a weight of 616 grams (1.36 lbs) whilst the Pentax K20D has dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs).
Check the Olympus E-330 vs Pentax K20D in our brand new Camera & Lens Size Comparison Tool.
Do not forget, the weight of an ILC will differ based on the lens you are working with during that time. Underneath is a front view size comparison of the E-330 versus the K20D.

Using dimensions and weight, the portability score of the E-330 and K20D is 65 and 59 respectively.
Olympus E-330 vs Pentax K20D Sensor Comparison
Quite often, it is very hard to picture the gap between sensor sizes simply by reading specifications. The picture here should provide you a much better sense of the sensor dimensions in the E-330 and K20D.
To sum up, the 2 cameras come with different megapixels and different sensor sizes. The E-330 featuring a tinier sensor is going to make achieving shallow depth of field trickier and the Pentax K20D will deliver extra detail having its extra 8 Megapixels. Higher resolution will also make it easier to crop shots a good deal more aggressively. The more aged E-330 is going to be disadvantaged with regard to sensor technology.
Olympus E-330 vs Pentax K20D Screen and ViewFinder
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Olympus E-330 vs Pentax K20D Specifications
| Olympus E-330 | Pentax K20D | |
|---|---|---|
| General Information | ||
| Brand Name | Olympus | Pentax |
| Model | Olympus E-330 | Pentax K20D |
| Alternate name | EVOLT E-330 | - |
| Category | Advanced DSLR | Advanced DSLR |
| Introduced | 2006-03-18 | 2008-06-25 |
| Body design | Mid-size SLR | Mid-size SLR |
| Sensor Information | ||
| Sensor type | CMOS | CMOS |
| Sensor size | Four Thirds | APS-C |
| Sensor measurements | 17.3 x 13mm | 23.4 x 15.6mm |
| Sensor area | 224.9mm² | 365.0mm² |
| Sensor resolution | 7 megapixel | 15 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 4:3 | 3:2 |
| Max resolution | 3136 x 2352 | 4672 x 3104 |
| Max native ISO | 400 | 3200 |
| Max enhanced ISO | 1600 | 6400 |
| Lowest native ISO | 100 | 100 |
| RAW support | ||
| Autofocusing | ||
| Manual focus | ||
| Touch to focus | ||
| Continuous AF | ||
| Single AF | ||
| Tracking AF | ||
| Selective AF | ||
| AF center weighted | ||
| AF multi area | ||
| AF live view | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Number of focus points | 3 | 11 |
| Lens | ||
| Lens mount | Micro Four Thirds | Pentax KAF2 |
| Available lenses | 45 | 151 |
| Crop factor | 2.1 | 1.5 |
| Screen | ||
| Display type | Tilting | Fixed Type |
| Display size | 2.5 inch | 2.7 inch |
| Resolution of display | 215 thousand dot | 230 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch operation | ||
| Viewfinder Information | ||
| Viewfinder type | Optical (pentamirror) | Optical (pentaprism) |
| Viewfinder coverage | 95% | 95% |
| Viewfinder magnification | 0.47x | 0.64x |
| Features | ||
| Min shutter speed | 60s | 30s |
| Max shutter speed | 1/4000s | 1/4000s |
| Continuous shutter speed | 3.0fps | 3.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash range | - | 13.00 m (at ISO 100) |
| Flash options | Auto, Auto FP, Manual, Red-Eye | Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless |
| External flash | ||
| AE bracketing | ||
| White balance bracketing | ||
| Max flash sync | 1/180s | 1/180s |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Max video resolution | None | None |
| Microphone jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | None | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 1.0 (1.5 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 616 gr (1.36 lb) | 800 gr (1.76 lb) |
| Physical dimensions | 140 x 87 x 72mm (5.5" x 3.4" x 2.8") | 142 x 101 x 70mm (5.6" x 4.0" x 2.8") |
| DXO scores | ||
| DXO Overall score | not tested | 65 |
| DXO Color Depth score | not tested | 22.9 |
| DXO Dynamic range score | not tested | 11.1 |
| DXO Low light score | not tested | 639 |
| Other | ||
| Battery model | - | D-LI50 |
| Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
| Time lapse shooting | ||
| Type of storage | Compact Flash (Type I or II), xD Picture Card | SD/MMC/SDHC card |
| Storage slots | Single | Single |
| Retail pricing | $1,100 | $700 |