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Sony Alpha A100 Outdoor Crops

10 Megapixels10 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.Accepts Compact Flash memory.Accepts Compact Flash 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.

Outdoor Crops

Just below, the Sony Alpha A100 is compared to its closest competitor, the Pentax K10D. The top row presents the overall scene at ISO 100. Below that are 100% scale crops taken from full-resolution images at each ISO setting from its respective camera. These shots were taken at night using aperture priority, automatic white-balance and set ISO sensitivity.

The Sony Alpha A100 shows low noise levels below ISO 400. At ISO 400, noise become noticeable at 100% but has little effect on image details. ISO 800 and 1600 images from the A100 show increased noise and reduced details. This is where the performance of the Alpha A100 is below that of the average DSLR.

Although the A100 and K10D share the same sensor, image noise characteristics and sensitivity differ. The night crops below show that the K10D preserves more details at all ISO and shows a little less noise starting at ISO 400. In this setup, the measured exposures are the same but the A100 produced a slightly brighter image. This is because the sensitivity gain is higher on the Alpha. In other words, when it is set at ISO 100, the Sony Alpha A100 captures an image with a lightly higher sensitivity.

Sony Alpha A100 Pentax K10D

Entire scene

Entire scene

ISO 100 30s F8

ISO 100 30s F8

ISO 200 15s F8

ISO 200 15s F8

ISO 400 8s F8

ISO 400 8s F8

ISO 800 4s F8

ISO 800 4s F8

ISO 1600 2s F8

ISO 1600 2s F8

ISO Lo80 30s F8

ISO Hi200 15s F8
Sony Alpha A100
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By on 2007/03/31
3

Sony A100 Facts

SLR digital camera
10 Megapixels DSLRISO 80-1600
Sony A 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
Medium Viewfinder
Custom white-balance with 1 axis fine-tuning
Automatic Eye-Start sensorSpot-Metering
Built-in Dust ReductionHot-Shoe
3 FPS Drive, Unlimited ImagesLithium-Ion Battery
2.5" LCD 230K PixelsCompact Flash
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