Sony Alpha 1 II vs Sony Alpha DSLR-A290

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Alpha 1 II compared with Alpha DSLR-A290

	SonyAlpha 1 II	SonyAlpha DSLR-A290
Overview
Released
Released	December 2024	July 2010
Image and sensor
Camera type
Camera type	Mirrorless	DSLR
Sensor format
Sensor format	Full frame	APS-C
Sensor type
Sensor type	Stacked Exmor RS CMOS with integral memory	CCD
Sensor dimensions
Sensor dimensions	35.9 × 24 mm	23.5 × 15.7 mm
Effective resolution
Effective resolution	50.1 MP	14.2 MP
Largest image
Largest image	8640 × 5760	4592 × 3056
RAW recording
RAW recording	Yes	Yes
Standard ISO range
Standard ISO range	100–32000	100–3200
Sensor detail
Sensor detail	Approximately 50.5 million total pixels; Pixel Shift Multi Shooting uses four or 16 exposures combined in compatible computer software.	Approximately 14.9 million total pixels; RGB primary-colour filter; anti-static coating and image-sensor-shift dust reduction
Image formats
Image formats	JPEG, HEIF and Sony ARW 5.0 RAW.	JPEG, RAW and RAW+JPEG; Sony ARW 2.1; 3:2 and 16:9; sRGB and Adobe RGB
ISO detail
ISO detail	Standard ISO 100–32000 for stills and movies; stills expand to ISO 50–102400.	–
Image processor
Image processor	BIONZ XR and dedicated AI processing unit.	BIONZ (Sony launch announcement)
Lens and shooting
Lens mount
Lens mount	Sony E-mount	Sony A-mount
Stabilisation
Stabilisation	Sensor shift	Sensor shift
Maximum continuous burst
Maximum continuous burst	30 fps	2.5 fps
Autofocus
Autofocus	Up to 759 phase-detection points for stills and movies; sensitivity EV −4 to 20 in AF-S with an F2 lens at ISO 100. Automatic or selected recognition of people, animals, birds, insects, cars, trains and aircraft. Sony's current feature page specifies Real-time Recognition AF+ from firmware version 4.00; launch reviews describe earlier firmware.	Nine-point TTL phase detection with central cross sensor; EV 0–18 at ISO 100; single, automatic and continuous AF plus manual focus; Eye-start AF and flash AF illumination
Shutter
Shutter	–	Electronically controlled focal-plane shutter; 30 seconds to 1/4000 second and Bulb; flash sync 1/160 second
Burst detail
Burst detail	Up to 30 fps electronic Hi+ with AF/AE tracking under compatible-lens and maker conditions; uncompressed or lossless-compressed RAW up to 20 fps; mechanical Hi+ up to 10 fps. Pre-Capture retains up to one second before full shutter press, subject to camera temperature and shooting conditions. A custom button can temporarily change burst speed.	Maximum approximately 2.5 fps at full resolution using the optical viewfinder; maker specifies Fine JPEG until card fills, six RAW or three RAW+JPEG frames, depending on card and conditions
Stabilisation detail
Stabilisation detail	Five-axis sensor shift; centre 8.5 stops and periphery 7.0 stops under CIPA 2024 pitch/yaw/roll conditions with FE 50mm F1.2 GM and long-exposure noise reduction off. Active and Dynamic Active movie modes narrow the field of view and are unavailable in 8K or at frame rates of 120 fps or higher.	SteadyShot INSIDE sensor shift; approximately 2.5–3.5 shutter-speed steps depending on lens and shooting conditions
Flash
Flash	–	Pop-up flash, guide number 10 m at ISO 100; ADI and pre-flash TTL; Sony Alpha accessory shoe; wireless flash with compatible optional external flash
Exposure controls
Exposure controls	–	P/A/S/M and scene modes; 40-segment honeycomb SPC metering; ±2 EV in 0.3 EV steps; three-frame exposure bracketing at 0.3 or 0.7 EV; Dynamic Range Optimizer Off, Standard and Advanced
Video
Highest video resolution
Highest video resolution	7680 × 4320 at 30 fps	–
Video detail
Video detail	Sony's current feature page lists internal 7680 × 4320 30p XAVC HS with 8.6K oversampling and 10-bit 4:2:2 support. Lower-resolution 4K up to 120p has approximately 10% crop; Full HD 240 fps is lower resolution. S-Log3, S-Cinetone and imported LUTs supported; external HDMI RAW is separate from internal recording.	No movie recording (WIRED); HDMI is for still-image playback
Screen and viewfinder
Viewfinder
Viewfinder	Electronic	Optical
Screen size
Screen size	3.2″	2.7″
Screen dots
Screen dots	2,095,104	230,400
Touchscreen
Touchscreen	Yes	–
Tilting screen
Tilting screen	Yes	No
Display detail
Display detail	Four-axis TFT LCD opens approximately 98° up, 40° down and 180° sideways, with 270° rotation when opened sideways.	Fixed Clear Photo LCD; dots count colour subpixels; no live view
Viewfinder detail
Viewfinder detail	0.64-inch Quad-XGA OLED with 9437184 dots and approximately 0.90× magnification with a 50 mm lens at infinity. Selectable 60/120/240 fps; standard magnification is unavailable at 240 fps.	Pentamirror optical viewfinder; approximately 95% coverage and 0.83× magnification with a 50 mm lens at infinity (Sony UK specifications). Shared original Asia specification sheet prints 0.74× across the model table; exact UK model table used
Connections and design
Wi-Fi
Wi-Fi	Yes	–
Bluetooth
Bluetooth	Yes	–
Battery life (maker's claim)
Battery life (maker's claim)	520 photographs	500 photographs
Body weight
Body weight	658 g	456 g (better)
Release detail
Release detail	Sony UK specifies availability in December 2024; no release day inferred. Exact technical figures use Sony Japan because the UK specification URLs were inaccessible during research.	Sony Spain's original announcement specifies availability in the first half of July 2010; month precision retained. Sony Europe's parallel announcement states summer 2010; DPReview also reports July shipping
Recording media
Recording media	Both slots accept CFexpress 2.0 Type A or UHS-I/UHS-II SD.	Separate Memory Stick PRO Duo/PRO-HG Duo/PRO-HG Duo HX and SD/SDHC card slots
Ports
Ports	USB Type-C at 10 Gbps, Multi/Micro USB, full-size HDMI, 2.5GBASE-T Ethernet, sync terminal, 3.5 mm microphone and headphone sockets and digital-audio Multi Interface Shoe.	USB 2.0 Hi-Speed and mini HDMI Type C; supports BRAVIA Sync and PhotoTV HD; optional infrared remote, without wired remote-release terminal
Wireless connections
Wireless connections	Wi-Fi IEEE 802.11a/b/g/n/ac at 2.4/5 GHz and Bluetooth 5.0.	–
Battery life detail
Battery life detail	NP-FZ100; Sony Japan CIPA approximately 520 photographs with LCD or 420 with viewfinder. PhotographyBlog's 530/400 figures are not used. USB Type-C Power Delivery charging and power supported.	NP-FH50; approximately 500 photographs under maker CIPA conditions
Dimensions
Dimensions	Approximately 136.1 × 96.9 × 82.9 mm (width × height × maximum depth); grip-to-monitor depth 72.8 mm.	Approximately 128.1 × 97.1 × 79.6 mm (width × height × depth, excluding protrusions)
Weight detail
Weight detail	Approximately 658 g body only or 743 g with battery and memory card, excluding lens. PhotographyBlog's inconsistent 617 g figure is not used.	Approximately 456 g without battery, memory card or accessories; approximately 508 g including battery and Memory Stick PRO Duo
In the box
In the box	One NP-FZ100 battery, BC-ZD1 dual-battery charger, cable protector, shoulder strap, body cap, accessory shoe cap and FDA-EP19/FDA-EP21 eyepiece cups, according to Sony Japan. USB Power Delivery AC adaptor and USB cable are not included.	–