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Pentax K-7 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.Automatic Level: Corrects for some degree of tilt to keep the horizon level.Automatic Level: Corrects for some degree of tilt to keep the horizon level.Continuous DriveContinuous Drive720p HD Video: 1280 x 720 resolution or more but less than 1920 x 1080.720p HD Video: 1280 x 720 resolution or more but less than 1920 x 1080.Manual 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 K-7 is compared to its predecessor, the K20D, below. All images below are 100% unmodified crops from their respective cameras. Both cameras were set on aperture-priority mode with fixed ISO. 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 35mm F2.8 Macro Limited lens.

The most significant difference is that the K-7 knows its white-balance much better than the K20D, which leaves too much yellow. The K-7 is still not perfect in this regard, as it removed too much yellow, at least with white-balance correction set to strong in the custom-settings menu. Exposure is identical up to ISO 1600, when the K20D chooses slightly faster shutter-speeds, suggesting differences in actual ISO sensitivities.

In terms of ISO performance, the K-7 shows a slight advantage over the K20D, between 1/4 and 1/2 a stop. Noise is less chromatic with the K-7 than with the K20D. Note both cameras were set to no high-ISO noise reduction which is the default on the K20D but not on the K-7, which defaults to medium for ISO 1600 and up. This may explain why comparisons between these two cameras do not always yield the same conclusion. Here the goal was to compare the least processed output of each camera, since noise-reduction can be applied in software at a later stage.

Pentax K-7 Pentax K20D

ISO 100 - 2s F8

ISO 100 - 2s F8

ISO 200 - 1s F8

ISO 200 - 1s F8

ISO 400 - 1/2s F8

ISO 400 - 1/2s F8

ISO 800 - 1/4s F8

ISO 800 - 1/4s F8

ISO 1600 - 1/8s F8

ISO 1600 - 1/8s F8

ISO 3200 - 1/15s F8

ISO 3200 - 1/20s F8

ISO 6400 - 1/30s F8

ISO 6400 - 1/45s F8
Pentax K-7
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By on 2009/07/27
3

Pentax K-7 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 1/8000-30s
3-Axis Built-in Stabilization, 4-Stop ImprovementFull manual controls, including Manual Focus
100% Coverage
Large Viewfinder
Custom white-balance with 2 axis fine-tuning
Auto Horizon Correction
1 Axis Digital Level
Spot-Metering
Weatherproof down to -10CHot-Shoe & Sync-Port
Built-in Dust ReductionStereo audio input
5.2 FPS Drive, 40 ImagesLithium-Ion Battery
1536x1024 @ 30 FPS Video RecordingSecure Digital High Capacity
3" LCD 920K Pixels
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