Sony Alpha 850

Sony α850
Overview

Type	Single-lens reflex
Lens
Lens	Sony mount; compatible with Minolta A-type bayonet mount. Sony α lens and Konica Minolta α/Maxxum/Dynax lens^{[note 1]}
Sensor/Medium
Sensor	35.8 mm × 23.9 mm Exmor CMOS sensor
Maximum resolution	24.6 megapixels
Storage	Memory Stick: Memory Stick Duo, Memory Stick PRO Duo, Memory Stick PRO-HG Duo Compact Flash Type I, Type II (Microdrive), UDMA (Mode 5) compliant
Focusing
Focus	Manual, and AF Modes : Single-shot AF, Automatic AF, Continuous AF, (AF/MF selectable)
Focus modes	dual-cross 9 point AF w/10 assist points, center AF w/2.8 sensor
Focus areas	Wide (Auto, up to 9 areas), Spot, Local (9 local areas selectable) ^[1]
Exposure/Metering
Exposure modes	Mode: Auto, Program Auto (P, with program shift), Aperture priority (A), Shutter priority (S), Manual (M)
Exposure metering	Type: TTL metering Cell: 40-segment honeycomb-pattern SPC Range: 0 EV to 20 EV (+2 EV to +20 EV with spot metering) (at ISO 100 equivalent with F1.4 lens) Mode: Multi segment, Spot, Centre weighted
Shutter
Frame rate	3
Shutter	Electronically-controlled, vertical-traverse, focal-plane type
Shutter speed range	1/8000 sec. – 30 sec., bulb, 1/250 sec. (SteadyShot off), 1/200 sec. (SteadyShot on), maximum burst of 3 frames per second.
Viewfinder
Viewfinder	Fixed eye-level system with optical glass type pentaprism, approximately 98%
General
Rear LCD monitor	3.0", 921k pixels, 100% coverage
AV Port(s)	HDMI
Data Port(s)	USB 2.0
Body composition or special features	Magnesium Alloy body weather & dust resistant uses rubber seals
Weight	850g (bare body)
Made in	Japan

The α850 (DSLR-A850) was Sony's second full-frame digital SLR, introduced on 27 August 2009. Similar to the DSLR-A900, the camera featured the same 24.6-megapixel full-frame CMOS sensor used in the a900. On 8 June 2011, Sony pre-announced the camera's end of production in July/August 2011.

The camera was almost exactly the same as the DSLR-A900, but the viewfinder coverage was dropped to 98% with 0.74× magnification and the burst rate was reduced to 3 frames per second.

Notes

↑ Sony's DT series lenses are not recommended for use with 35mm full-frame sensors due to their differing image circle size, which may affect light metering accuracy in certain shooting situations.

References

↑ "DSLR-A850 | Sony α850 DSLR Camera Body". Sonystyle. Retrieved 29 January 2011.

Reviews

Review by Digital Photography Review

External links

Wikimedia Commons has media related to Sony DSLR-A850 and Taken with Sony DSLR-A850.

Sony press release

Minolta/Konica Minolta/Sony DSLR and SLT A-mount timeline

	Sensor	2004		2005				2006				2007				2008				2009				2010				2011				2012				2013				2014				2015				2016
		3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4
Professional	Full frame																		α900																α99																α99 II
																							α850
High-end	APS-C	DG-7D												α700																α77											α77 II
Midrange																														α65																		α68
Upper-entry																										α55							α57
										α100												α550				α580												α58
						DG-5D																α500				α560
																								α450
Entry-level																										α33				α35				α37
																α350					α380				α390
																α300					α330
																α200					α230				α290
Early models	Minolta 7000 with SB-70/SB-70S (1986) · Minolta 9000 with SB-90/SB-90S (1986) (Still video SLRs) Minolta MS-C1100 (1992) · Minolta RD-175 (1995)

Single-lens translucent (SLT) camera
5-axis in-body image stabilization (bold)
HD video capable (Video AF)
Dual phase-detection AF (italic)

Full-frame DSLR cameras

Pentax

MZ-D (Prototype, 2000)
K-1 (2016)

Contax

N Digital (2002)

Kodak

DCS Pro 14n (2002)
DCS Pro SLR/n (2004)
DCS Pro SLR/c (2004)

Canon

Flagship	1Ds (2002) 1Ds Mark II (2004) 1Ds Mark III (2007) 1D X (2012) 1D C (2012) 1D X Mark II (2016)

High-end	5D (2005) 5D Mark II (2008) 5D Mark III (2012) 5DS/5DS R (2015) 5D Mark IV (2016)

Entry-level	6D (2012)

Nikon

Flagship	D3 (2007) D3X (2008) D3S (2009) D4 (2012) D4S (2014) D5 (2016)

High-end	D700 (2008) D800 (2012) D800E (2012) Df (2013) D810 (2014) D750 (2014) D810A (2015)

Entry-level	D600 (2012) D610 (2013)

Sony

Flagship	α 900 (2008) α 99 (2012)

High-end	α 850 (2009)

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