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Pentax K20D Indoor Crops

15 Megapixels15 MegapixelsSingle Lens ReflexSingle Lens ReflexStabilization: Compensates for tiny involuntary movements of the camera.Stabilization: Compensates for tiny involuntary movements of the camera.Continuous DriveContinuous DriveManual Controls: Both fully-manual (M) and semi-automatic modes (T and V).Manual Controls: Both fully-manual (M) and semi-automatic modes (T and V).Custom White-Balance: Specifies exactly what should be white to the camera.Custom White-Balance: Specifies exactly what should be white to the camera.Action Photography: Shutter speeds of 1/1500 or more.Action Photography: Shutter speeds of 1/1500 or more.Night Photography: Reaches shutter-speeds longer than 4 seconds.Night Photography: Reaches shutter-speeds longer than 4 seconds.Hotshoe: Allows external flash units to be attached.Hotshoe: Allows external flash units to be attached.Spot MeteringSpot MeteringDepth-Of-Field Preview: Improve perception of DOF before shooting.Depth-Of-Field Preview: Improve perception of DOF before shooting.Weatherproof - Seals protect from dust, humidity and light splashing.Weatherproof - Seals protect from dust, humidity and light splashing.Accepts Secure Digital High Capacity (SDHC) and SD memory.Accepts Secure Digital High Capacity (SDHC) and SD memory.Neocamera detailed reviewNeocamera detailed reviewDiscontinued: No longer produced by the manufacturer. May still be in stock or found used.Discontinued: No longer produced by the manufacturer. May still be in stock or found used.

Indoor Crops

The Pentax K20D is compared to its predecessor, the K10D, below. All images below are 100% unmodified crops from their respective cameras. Both cameras were set on aperture-priority mode with fixed ISO and tungsten white-balance. Picture style is bright on both cameras. The remaining settings were left on automatic. Images were framed identically on both cameras which were mounted with the Pentax DA* 50-135mm lens set around 90mm. Note that despite the K20D having 44% more pixels, linear resolution is only 18% more, that is why the image on the left does not look that much bigger.

The most significant difference is that the K20D knows its white-balance much better than the K10D, which was one of the worst performers in that area. Still not perfect, but the K20D's white-balance is quite neutral. Colors are quite accurate with the K10D being spot-on and the K20D being slightly oversaturated. As mentioned in the review text, the K20D has one slightly over-saturated setting and one slightly undersaturated one. We chose the slightly over-saturated one here. Exposure is also very close but we can see that the K20D's tone curve is a bit steeper. Take a look at the yellow beads: the highlights are brighter on the K20D.

In terms of ISO performance, the comparison below show that both cameras have similar noise levels at all ISO levels. This is an excellent performance for the K20D which managed to keep the same noise levels despite an increase in resolution. Practically, this means that the K20D shows less noise for a given print or display size. In terms of image details, the K20D puts in an impressive performance. It seems that it has a lead of at least 2 stops over the K10D, despite not showing increased image noise.

The crops are only one version of the story because the Pentax K20D has customizable noise-reduction settings. The default is OFF, which is a bold move from Pentax and it clearly does the new sensor justice by leaving plenty of details. If we increase noise-reduction to Weakest, not much changes but beyond that the trade-off between noise and detail becomes apparent. So, with a few button pushes, we could have made the crops below show much less noise for the K20D but also significantly less detail. We left it as is, but it is the user's choice.

Pentax K20D Pentax K10D

ISO 100 - 4s F5.6

ISO 100 - 4s F5.6

ISO 200 - 1.5s F5.6

ISO 200 - 2s F5.6

ISO 400 - 1s F5.6

ISO 400 - 1s F5.6

ISO 800 - 1/2s F5.6

ISO 800 - 1/2s F5.6

ISO 1600 - 1/4s F5.6

ISO 1600 - 1/4s F5.6

ISO 3200 - 1/10s F5.6

ISO 6400 - 1/20s F5.6
Pentax K20D
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By on 2008/03/15
3

Pentax K20D Facts

SLR digital camera
15 Megapixels DSLRISO 100-6400
Pentax K Mount
1.5X FLM

Sensor-Size: 24 x 16mm

APS-C Sensor

Actual size when viewed at 100 DPI

Shutter 1/4000-30s
2-Axis Built-in StabilizationFull manual controls, including Manual Focus
95% Coverage
Large Viewfinder
Custom white-balance with 2 axis fine-tuning
WeatherproofSpot-Metering
Built-in Dust ReductionHot-Shoe & Sync-Port
3 FPS Drive, 38 ImagesLithium-Ion Battery
2.7" LCD 230K PixelsSecure Digital High Capacity
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