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Sony Alpha 100 DSLR Camera

The Sony a100 is a 10MP APS-C DSLR camera — known for its 10MP APS-C Sensor and Sensor-Shift Stabilization. Check GearFocus for current availability, with buyer protection on every purchase.

Sony Alpha 100 DSLR Camera

Sony Alpha 100 DSLR Camera

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Overview — Sony a100

The Sony Alpha 100 is a 10MP APS-C DSLR built around Sony's Bionz image processor, delivering a maximum resolution of 3872x2592 pixels. It operates within an ISO range of 100 to 1600, covering a solid range for everyday shooting in varied lighting conditions. One of its standout features is sensor-shift in-body image stabilization, which works at the sensor level to help reduce camera shake without requiring stabilized lenses.

The autofocus system uses phase detection with 9 focus points, offering reliable subject acquisition for general photography. Shooting continuously is possible at up to 3 frames per second, making it capable for moderately paced action. The camera offers seven color profiles — Standard, Vivid, Portrait, Landscape, Evening, Night/Night Portrait, and Monochrome — giving photographers meaningful in-camera creative control.

On the back, a 2.5-inch TFT LCD with 230,000 dots handles image review and menu navigation, while an optical pentamirror viewfinder provides a direct optical shooting experience. Storage is handled via CompactFlash or Memory Stick cards. The body, constructed from a plastic and metal composite, measures 133 x 95 x 71 mm and weighs 638g.

The NP-FM55H Lithium-Ion battery is rated for up to 700 shots per charge under CIPA standards. A built-in pop-up flash with external flash support rounds out the feature set.

Key Features — Sony a100

10MP APS-C Sensor: Captures images at up to 3872x2592 pixels using a 1.5x crop factor sensor processed by Sony's Bionz engine.

Sensor-Shift Stabilization: In-body image stabilization operates at the sensor level, reducing camera shake with any compatible lens regardless of whether it has optical stabilization.

9-Point Phase Detection AF: Phase detection autofocus with 9 focus points provides reliable subject acquisition for everyday and general photography.

ISO 100–1600 Range: Native sensitivity range covers typical shooting conditions from bright daylight through moderately low-light environments.

3 fps Burst Shooting: Continuous shooting at up to 3 frames per second supports moderately paced action and candid sequences.

Seven Color Profiles: Includes Standard, Vivid, Portrait, Landscape, Evening, Night/Night Portrait, and Monochrome for in-camera creative control without post-processing.

Specifications — Sony a100

Sony a100 full specifications
SpecDetail
Use CasesTravel
TypeDSLR
SensorAPS-C
Resolution10MP
ProcessorBionz
ISO Range100 – 1600
AF SystemPhase Detection
AF Points9 points
Max Photo Resolution3872x2592
Burst Rate3 fps
Image StabilizationSensor-Shift (IBIS)
Display2.5 inches TFT LCD

Description — Sony a100

The Sony Alpha 100 is a 10MP APS-C DSLR powered by Sony's Bionz image processor, producing images at a maximum resolution of 3872x2592 pixels. Its sensor-shift in-body image stabilization works at the sensor level, helping to counteract camera shake across compatible lenses. The phase detection autofocus system covers 9 focus points, and the camera can shoot at up to 3 frames per second in burst mode.

Seven selectable color profiles — including Standard, Vivid, Portrait, Landscape, Evening, Night/Night Portrait, and Monochrome — offer meaningful in-camera image control. The ISO 100–1600 range handles typical shooting conditions. On the back, a 2.5-inch TFT LCD with 230,000 dots handles image review, supported by an optical pentamirror viewfinder.

Storage is flexible with support for both CompactFlash and Memory Stick cards. The NP-FM55H Lithium-Ion battery is CIPA-rated for up to 700 shots per charge. The body measures 133 x 95 x 71 mm, weighs 638g, and is built from a plastic and metal composite — with no weather sealing.

A built-in pop-up flash is included alongside external flash support.

Pros — Sony a100

  • ✓Sensor-shift in-body image stabilization (IBIS) benefits any compatible lens without needing optically stabilized glass
  • ✓Seven color profiles including Monochrome, Portrait, and Landscape offer meaningful in-camera creative flexibility
  • ✓Battery rated for up to 700 shots per charge (CIPA standard) — strong for a camera in this class

Cons — Sony a100

  • ✗ISO tops out at 1600, limiting performance in low-light situations compared to more modern bodies
  • ✗9-point phase detection autofocus system offers modest coverage across the frame
  • ✗No video capability — videoSpecs fields are all null with no supported frame rates

Videos — Sony a100

When Minolta Died and Sony Took Over - Sony A100 Review and History — snappiness

Frequently Asked Questions — Sony a100

Does the Sony Alpha 100 have image stabilization?+
Yes. The Alpha 100 uses sensor-shift in-body image stabilization (IBIS), meaning stabilization is applied at the sensor level rather than in the lens. The digital IS option is not active on this camera.
What memory cards does the Sony Alpha 100 support?+
The camera accepts two storage formats: CompactFlash (CF) and Memory Stick. Either type can be used for image storage.
Can the Sony Alpha 100 record video?+
No. The Alpha 100 has no video recording capability — all video specification fields, including resolution and frame rate, are absent from this camera's specs.
What is the native ISO range of the Sony Alpha 100?+
The Alpha 100 has an ISO range of 100 to 1600. This covers standard daylight and indoor shooting but does not extend to the higher ISO values found on more recent cameras.
What autofocus system does the Sony Alpha 100 use?+
The camera uses a phase detection autofocus system with 9 focus points. Eye tracking and subject tracking are not supported.
How heavy is the Sony Alpha 100 and what is it made of?+
The body weighs 638g and is constructed from a plastic and metal composite. Its dimensions are 133 x 95 x 71 mm, making it a moderately sized DSLR body.

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