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Pentax K-3 Samples

24 Megapixels24 MegapixelsSingle Lens ReflexSingle Lens ReflexHigh ISO: ISO 6400 or more is available at full-resolution.High ISO: ISO 6400 or more is available at full-resolution.Stabilization: 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 DriveFull 1080p HD Video: 1920 x 1080 resolution or more but less than 4K.Full 1080p HD Video: 1920 x 1080 resolution or more but less than 4K.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 Extended Capacity (SDXC), SDHC and SD memory.Accepts Secure Digital Extended Capacity (SDXC), 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.

APS-C vs Full-Frame

Current DSLRs are available in two sensor-sizes: APS-C or Full-Frame. The former has a smaller sensor which is 1.5X smaller diagonally compared to the latter which has the same sensor-size as 35mm film. Pentax makes APS-C DSLRs only, while Nikon and Canon make DSLRs with either size of sensor. Technically, Canon APS-C cameras have slightly smaller sensors, 1.6X smaller compared to full-frame.

Full-frame DSLRs are theoretically advantegeous since their larger sensors let them collect more light per area. Practically speaking, technology and sensor-design plays a huge role in sensor-performance. We compare the K-3 versus the Nikon D610
Nikon D610
to evaluate the real-life performance difference among state-of-the-art DSLRs.

Pentax K-3 Nikon D610

ISO 50

ISO 100

ISO 100

ISO 200

ISO 200

ISO 400

ISO 400

ISO 800

ISO 800

ISO 1600

ISO 1600

ISO 3200

ISO 3200

ISO 6400

ISO 6400

ISO 12800

ISO 12800

ISO 25600

ISO 25600

ISO 51200

The above 100% crops show that image-noise is nearly identical at low sensitivities. By ISO 1600 though, the full-frame advantage becomes clear. The difference widens towards the end of the range but never exceeds a full stop. This is an excellent performance for the K-3 which shows that it is equally usable for low-ISO but full-frame cameras are better for low-light hand-held photography.

Note that sharpness appears quite different. There are two reasons for that. The main is optics. The lens in use on the K-3 is an ultra-sharp prime while the D610 used a variable aperture zoom. This underlies the importance of quality lenses. The second reason is a different JPEG rendering engine. Pentax uses superior sharpening to produce crisper edges before introducing artifacts.

Pentax K-3
Buy from these sellers: Buy From Amazon.com
By Neocamera on 2013-11-27

Pentax K-3 Highlights


SLR digital camera

Sensor-Size: 24 x 16mm

APS-C Sensor

Actual size when viewed at 100 DPI

24 Megapixels DSLRISO 100-51200
Pentax K Mount
1.5X FLM
Shutter 1/8000-30s
3-Axis Built-in Stabilization, 3.5-Stop ImprovementFull manual controls, including Manual Focus
100% Coverage
Large Viewfinder
Custom white-balance with 2 axis fine-tuning
Auto Horizon Correction
2 Axis Digital Level
Spot-Metering
Weatherproof down to -10CHot-Shoe & Sync-Port
Built-in Dust ReductionStereo audio input
8.3 FPS Drive, 60 ImagesLithium-Ion Battery
1920x1080 @ 30 FPS Video RecordingSecure Digital Extended Capacity x 2
3.2" LCD 1 Megapixels
Buy from these sellers: Buy From Amazon.com

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