Sony Alpha a7 III Black 2018
El sensor CMOS Exmor R de 24.2MP con procesador BIONZ X y el sistema de autoenfoque híbrido de 693 puntos con Eye AF permiten ráfagas de 10 fps y una captura de imagen nítida hasta ISO 204800. El bundle renovado incluye el versátil zoom Sony FE 24-105mm f/4 G OSS, que complementa la estabilización IBIS de 5 pasos y la construcción sellada del cuerpo, ofreciendo un kit listo para disparar. Perfecto para fotógrafos y videógrafos híbridos que se inician, con grabación UHD 4K30p, perfiles S-Log3 y HLG, y una batería de 610 disparos para largas sesiones.
Resumen
En 30 segundos
Una full-frame que en 2024 sigue siendo un cañón: batería infinita, enfoque que caza todo y un precio de derribo. Si no te importan los menús anticuados, cómprala sin miedo.
Ventajas y desventajas
Ventajas
- Batería eterna que te olvidas del cargador 98th
- Enfoque automático bestial y fiable 98th
- Estabilización en el cuerpo de 5 pasos 96th
- Sellado contra polvo y humedad como las grandes 96th
Desventajas
- Solo 24 MP y la competencia ya ofrece más resolución
- Menús algo laberínticos y anticuados
- Ráfaga correcta pero no para deportes extremos
- Pantalla inclinable, no totalmente articulada
Opinión de los propietarios
Lo que dicen los usuarios
Cómo cambió la opinión de los propietarios con el tiempo
ExclusivaSegún cuándo escribieron realmente sus opiniones los clientes, para ver si los elogios iniciales se mantuvieron.
- Q2 2026100/100
Buyers praised the A7 III as a great value full-frame camera with excellent image quality, strong low-light performance, reliable autofocus, and good battery life.
- Excellent image quality and vibrant colors
- Great value for a full-frame camera
- Reliable autofocus and good battery life
- Outdated menu system and non-articulating screen noted
- Q1 202690/100
Buyers are very satisfied, praising low light performance and user-friendliness for first-time camera owners.
- Excellent low light performance with high ISO and low noise.
- Great for first camera buyers; easy to love.
- Overall high satisfaction, rated 5 stars by 89%.
- Q4 2025100/100
Wedding photographer and hobbyist praise picture quality, handling, and performance. Camera exceeds expectations compared to older APSC model.
- Excellent image quality and resolution for professional and hobbyist use.
- Comfortable body design and good handling.
- Strong performance in ISO, focus, and overall functionality.
- Great value upgrade from older APSC camera systems.
- Q3 202594/100
Reviewers in Q3 2025 are thrilled with the Sony A7 III, praising its image quality, full-frame sensor, and value for money. The camera is seen as a great semi-pro choice, with one user noting its relevance.
- Excellent image and video quality, beating previous Sony models thanks to full-frame sensor.
- Great value for money; buyers satisfied with free gifts and support.
- High-speed burst mode perfect for action shots like fun runs; reliable auto-focus.
- Still a relevant, capable camera in 2025 but may not be the newest model.
- Q2 202588/100
Buyers praised the camera's amazing quality, fast autofocus, and 4K video, but one cited a bad screen display.
- Overall product satisfaction and recommendation for weddings and video
- Excellent autofocus, video quality, and shadow recovery in S-Log2
- Screen display inconsistent with EVF and final output, exposure difficult
- Old model with limited accessories, but superb photo quality and love for product
- Q1 202593/100
Buyers were highly satisfied, praising it as a great starter camera with excellent kit contents; one user noted non-flippy screen is limiting.
- Great starter camera for beginners mirrorless photography
- Kit includes useful accessories like cleaning kit
- Non-flippy screen restricts some shooting angles
- Excellent full frame hybrid for photo and video
- Q4 202492/100
Buyers in Q4 2024 praised the camera's low-light performance and ease of use for hobbyists. One reported a missing battery and poor customer service.
- Excellent low-light performance and dynamic range, especially for hobbyists.
- Great all-around hybrid camera for photo and video, reliable over time.
- Easy to use for beginners, with sharp lens and good autofocus.
- One buyer received kit with missing battery and could not contact support.
- Q3 202491/100
Buyers praised the camera's ease of use, image quality, and value. Many upgraded from older models and were highly satisfied.
- Easy to use and intuitive interface, especially for those upgrading from older cameras.
- Excellent image quality and build quality, suitable for professional use like wedding photography.
- Great value for money compared to higher-end brands like Hasselblad.
- Auto-focus and low light performance exceeded expectations for some users.
- Q2 202495/100
Buyers overwhelmingly praised the camera as excellent, lightweight, versatile for photo/video, and easy to use, with a minor wish for a higher-end model.
- Users love the camera's quality, ease of use, and versatility for various purposes.
- Lightweight design and travel-friendliness are frequently highlighted.
- Availability of affordable third-party lenses is seen as a major advantage.
- One beginner wishes they could have bought the A1, implying a desire for higher-end features.
- Q1 202498/100
Buyers in Q1 2024 praised the camera for its speed, image quality, ease of use, and included accessories. One was a gift, another an upgrade from an older DSLR.
- Excellent image quality and clarity from the kit lens.
- Fast and reliable performance, suitable for professional use like weddings.
- Compact, lightweight, and intuitive design with effective stabilization.
- Comprehensive starter kit with quality accessories that satisfy buyers.
- Q4 2023100/100
Buyers in Q4 2023 loved the Sony A7 III, praising its crisp image quality, ease of use, and low-light performance. All reviews were 5-star, indicating high satisfaction.
- Crisp, clear, high-quality images
- Great for beginners and learning
- Performs well in low light and action
- Easy to use and portable size
- Q2 202374/100
Buyers praised the camera for being excellent for beginners, compact, and great in low light, but one reported a shutter failure after 132,676 actuations.
- Great for beginners and enjoyable to use.
- Compact, ergonomic, with good low-light performance.
- Brings joy and pleasure; stock lens yields good results.
- Shutter broke at 132,676 actuations, below expected life.
- Q1 202383/100
Buyers praise the camera's versatility, build quality, and performance for both video and photos, but some criticize the complex menu system and software.
- Great overall versatility and performance for both video and photos.
- Complex and boring menu system, software issues noted.
- Solid build quality and good weight of the camera body.
- Positive about camera capabilities but frustrated with software experience.
- Q4 2022100/100
Buyers praised the camera's image quality, light weight, and hybrid capability for video, noting it as a great value bundle for beginners and a reliable upgrade.
- Excellent image quality and lightweight design praised by multiple reviewers.
- Great value bundle for beginners, including essential accessories.
- Hybrid video capability (10-bit) ideal for wedding shooting and professional use.
- Affordable alternative to latest models with desired features like Eye AF.
- Q3 202293/100
Buyers loved the camera, praising its ease of use, photo quality, and features. Ideal for beginners and upgrades alike.
- Excellent photo and video quality, sharp focus.
- Easy to use, great for beginners.
- Lightweight with good features, a solid upgrade.
- Strong brand loyalty, buyers are Sony fans.
- Q2 202281/100
Buyers found the camera exciting and a great value, with excellent image quality and low-light performance, though some noted a menu system flaw and an HDMI port failure after warranty.
- Image quality and full-frame sensor praised, especially in low light.
- HDMI port stopped working one month after warranty; costly repair.
- Menus outdated compared to newer models, but overall feature set strong.
- Camera considered life-changing upgrade from starter models, great price.
- Q1 202295/100
Buyers in Q1 2022 praised the camera for its image quality, portability, and value as a starter or upgrade. The menu system was a minor frustration.
- Excellent image quality and dynamic range for photos and videos.
- Lightweight and portable, easy to carry and use one-handed.
- Package deals offer great value with all needed accessories.
- Menu system is clunky and not user-friendly.
- Q3 202148/100
Buyers praise the camera's all-around professional capabilities but report poor kit lens quality, price increases, defective accessories, battery issues, and a flashing red light problem after a few months.
- Versatile pro hybrid with excellent image quality, no overkill specs.
- Kit lens is trash, barely better than nothing.
- Price hiked $300 at purchase, not as great value as before.
- Defects: broken SD reader, flashing red light, short battery life.
- Q2 202167/100
Mixed feedback: one praised vendor and camera quality, another loved features and bundle, but one reported missing camera item.
- Camera quality praised for excellent features and superb instrument.
- Vendor performance lauded for early, perfect delivery.
- Included bundle considered a great addition.
- One buyer received only accessories, camera was missing.
Basado en 143 opiniones de clientes con fecha, agrupadas por trimestre natural. El análisis por periodo está en inglés.
Las pruebas
Rendimiento
Lo que más nos sorprendió al revisar nuestras pruebas fue la batería. Está en el percentil 96 y en el mundo real aguanta más de 600 disparos sin pestañear, algo bestial en full-frame. El enfoque automático con 693 puntos y detección ocular es otro puntazo: caza caras y ojos como un perro de presa, incluso con poca luz. Eso sí, la ráfaga de 10 fps está bien pero no es líder, y el sensor de 24 MP es simplemente correcto, sin alardes. Para producto o recortes drásticos se queda justo, pero para el 90% de situaciones es más que suficiente.
Especificaciones
Especificaciones completas
Sensor
| Type | CMOS |
| Size | full-frame |
| Megapixels | 24.2 MP |
| ISO Range | 100 |
| Processor | BIONZ X |
Autofocus
| AF Points | 693 |
| AF Type | Phase Detection: 693Contrast Detection: 425 |
| Eye AF | Yes |
| Animal AF | Yes |
| Subject Detection | Yes |
Shooting
| Burst (Mechanical) | 10 |
| Burst (Electronic) | 10 |
| Max Shutter | 1/8000 |
| Electronic Shutter | Yes |
Video
| Max Resolution | 4K |
| 4K FPS | 30 |
| 1080p FPS | 120 |
| 10-bit | No |
| Log Profile | Yes |
| RAW Video | Yes |
| Codec | H.264, H.265 |
Display & EVF
| Screen Size | 3" |
| Touchscreen | Yes |
| Articulating | Yes |
| EVF Resolution | 2.36 M dots |
Build
| Weather Sealed | Yes |
| Weight | 0.7 kg / 1.4 lbs |
| Battery Life | 710 |
Connectivity
| Wi-Fi | Yes |
| Bluetooth | Yes |
| USB | USB-C |
| HDMI | Micro-HDMI |
| Hot Shoe | Yes |
Frente a la competencia
La competencia se ha puesto seria. La Fujifilm X-H2S entra en el top 5 con una ráfaga de 40 fps y vídeo 4K 120p que dejan a la a7 III en evidencia si el deporte o el vídeo son lo tuyo. La Sony a7R V es otra liga en resolución con sus 61 MP, ideal para producto o recortes brutales, pero cuesta el doble o más. La Nikon Z9 es una bestia profesional absoluta, aunque su precio y tamaño la sacan de la conversación para el aficionado. La Panasonic Lumix S5 II es quizá la amenaza más directa: full-frame, estabilización excelente y vídeo 6K por un precio cercano. Aun así, la a7 III sigue defendiéndose por batería y enfoque, y por menos de 1200 dólares ninguna de estas le tose en relación calidad-precio.
| Spec | Sony Alpha a7 III | Fujifilm X-H2 | Panasonic Lumix G G9 II | OM System OM-1 Mark II | Nikon Z Z6 III | Canon EOS R5 Mark II |
|---|---|---|---|---|---|---|
| Type | mirrorless | mirrorless | mirrorless | mirrorless | mirrorless | mirrorless |
| Sensor | 24.2MP full-frame | 40.2MP aps-c | 25.2MP micro-four-thirds | 20.4MP micro-four-thirds | 24.5MP full-frame | 45MP full-frame |
| AF Points | 693 | 425 | 779 | 1053 | 299 | 1053 |
| Burst FPS | 10 | 15 | 75 | 120 | 20 | 30 |
| Video | 4K @30fps | 8K @60fps | 4K @120fps | 4K @60fps | 6K @120fps | 8K @120fps |
| IBIS | true | true | true | true | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 650 | 579 | 575 | 511 | 670 | 588 |
| Compare | Compare | Compare | Compare | Compare |
| Producto | AF | EVF | Build | Burst | Video | Sensor | Battery | Display | User Sentiment | Valoración social | Affordability | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sony Alpha a7 III | 96.1 | 83.9 | 95.7 | 77.7 | 75.3 | 57.9 | 98.3 | 77.1 | 49.6 | 98.1 | 19.5 | 89.1 |
| Fujifilm X-H2 Compare | 92.4 | 96.9 | 94.6 | 82.4 | 95.4 | 98.9 | 97.8 | 87.6 | 82.5 | 89.6 | 23.8 | 95.9 |
| Panasonic Lumix G G9 II Compare | 98 | 91.8 | 94.5 | 96.2 | 97.6 | 63.8 | 91.9 | 87.6 | 94.4 | 89.6 | 21.9 | 89.1 |
| OM System OM-1 Mark II Compare | 98.8 | 99.8 | 91.5 | 99.6 | 85.1 | 51.6 | 96 | 87.6 | 82.5 | 89.6 | 17.5 | 99.6 |
| Nikon Z Z6 III Compare | 89.9 | 96.9 | 96.6 | 94.9 | 96.6 | 61.6 | 91.5 | 87.6 | 65.1 | 98.1 | 20.9 | 89.1 |
| Canon EOS R5 Mark II Compare | 98.8 | 96 | 94.8 | 90.5 | 98.8 | 70.1 | 90.5 | 99.6 | 33.7 | 89.6 | 9.1 | 89.1 |
Precio
Relación calidad-precio
El rango de precios es amplio, desde 1125 hasta 2198 dólares según el vendedor. Si la pillas en el extremo bajo, como en B&H con el kit básico, la relación calidad-precio es ridícula. Por menos de 1200 te llevas una full-frame con un enfoque y una batería que humillan a muchas cámaras más caras. Si pagas más de 1700, mejor mira opciones más modernas.
Amazon 43 ofertas Desde 1105 US$
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Best Buy 14 ofertas Desde 1400 US$
Sony 2 ofertas Desde 1400 US$
Price History
Leer más
Resumen
La Sony a7 III es esa cámara que se niega a jubilarse. Con casi seis años a sus espaldas, sigue siendo una de las mejores full-frame para empezar en serio. Su combinación de enfoque automático ultrarrápido, una batería que parece no acabarse nunca y un precio que ahora ronda los 1100 dólares en ofertas la convierten en un chollo. No es la más nueva ni la que tiene más megapíxeles, pero para un fotógrafo híbrido o alguien que da el salto desde APS-C, es un caballo de batalla que lo da casi todo bien.
Preguntas frecuentes
Q: ¿La Sony a7 III sigue siendo buena opción en 2024?
Sin duda. Por menos de 1200 dólares usada o en oferta, tienes una full-frame con un enfoque top y una batería que deja en ridículo a muchas actuales. Si no necesitas 4K 60p sin recorte o 40 MP, es una compra genial.
Q: ¿Sirve para grabar vídeo profesional?
Sí, graba 4K 30p con muy buena calidad y perfiles de color para editar. Pero si necesitas 4K 60p sin recorte o 10 bits internos, mejor mira la Panasonic GH7 o las Sony más nuevas.
Q: ¿El visor electrónico es suficiente?
Tiene 2.36 millones de puntos, lo normal en su día. No es el más nítido ahora, pero se ve bien para encuadrar y revisar enfoque. Si vienes de una réflex básica, te parecerá bueno.
Para quién no es adecuado
Si tu prioridad es la fotografía de producto en estudio o necesitas recortes muy agresivos, los 24 MP se te van a quedar cortos. Tampoco es la cámara ideal si solo trabajas vídeo avanzado con 4K 60p constante. En esos casos, ve a por la Sony a7R V o la Panasonic GH7 directamente.
Veredicto
Si buscas tu primera full-frame o una segunda cámara todoterreno sin arruinarte, la Sony a7 III es una apuesta segurísima. Su batería y enfoque siguen en la élite, y el precio actual la pone en bandeja. No te va a fallar en una boda, un viaje o una sesión de retrato. Las hay más modernas, pero pocas tan equilibradas por este dinero.
Puntuaciones por uso
- General86
- Video84.5
- Travel82.1
- Youtube87.2
- Beginner84.2
- Vlogging71.8
- Streaming73.3
- Photography83.7
- Wedding Events86.5
- Sports Wildlife83.2
- Product Photography80.3