Sony Alpha 77

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Sony α77
SLT-A77V + SAL-1650
Type	Digital single-lens translucent camera
Sensor	Exmor™ APS HD CMOS sensor (23.5 X 15.6mm)
Maximum resolution	Approx. 24.3 megapixels
Lens	Interchangeable, Sony A-mount
Flash	Built-in, Pop-up Auto,Auto, Fill-flash, Slow Sync., Rear Sync., Hi-speed sync., Red-eye reduction (on/off selectable for Autoflash and fill-flash mode), Wireless, Off, ADI flash / Pre-flash TTL / Manual flash
Shutter speed range	1/8000 to 30 seconds, bulb
Exposure metering	Advanced 1200-zone evaluative metering, Multi-segment, Center-weighted, Spot
Exposure modes	Portrait, Landscape, Macro, Sports action, Sunset, Night portrait, Night View, Handheld Twilight, (A)Aperture Priority, (P)Program Mode, (S)Shutter Priority, (M)Manual mode
Focus areas	Wide (auto,19 points)/Zone/Spot/Local selectable
Focus modes	Predictive control(AF-A, AF-C), Focus Lock, Eye-start AF, Manual-Focus
Continuous shooting	24.3megapixel at 12fps
Viewfinder	TruFinder XGA OLED Electronic View Finder(2,359k dots)
Flash bracketing	0.3/0.5/0.7/2.0/3.0EV steps, 3/5 frames(2.0/3.0EV : only 3 frames) selectable
Custom WB	Auto,Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm White, Cool White, Day White, Daylight) , Flash, Setting the color temperature, Color Filter, Custom
Rear LCD monitor	3.0” TFT Xtra Fine LCD (921,600 pixels) w/TruBlack technology
Storage	Memory Stick PRO Duo/Pro-HG Duo/PRO-HG HX Duo media - SD, SDHC and SDXC memory card
Battery	InfoLITHIUM NP-FM500H
Weight	Approx. 1 lb 7 oz (653g) (excl battery, lens & media) Approx. 1 lb 9.8 oz (732g) (w/battery & media)
Optional battery packs	Sony SLT-A77 VG-C77AM Vertical battery grip
Made in	Thailand

Announced by Sony on August 24, 2011 the Sony Alpha 77 is the flagship for Sony's midrange Alpha SLT camera line.

The successor to the Sony A700, it is equipped with a 24.3 MP APS-C HD CMOS sensor and boasts a 12-fps burst-shooting mode.

The camera is fitted with Sony's patented “translucent mirror” technology.^[1]

Model variants

Model variants of the Alpha 77 camera body:

SLT-A77V with GPS.
SLT-A77 without GPS (depending on country).

Depending on country/market, the Alpha 77 camera is also available in different kits:

SLT-A77VQ (A77V+ 16-50mm lens).
SLT-A77VK (A77V+ 18-55mm lens).

Features

Image features

24.3 megapixel Exmor APS-C HD CMOS sensor.
Updated BIONZ Image Processor.
2nd generation Translucent Mirror Technology.
Multi-frame Noise Reduction.

Autofocus and metering

19-point autofocus sensors with 11 cross type sensors.
TTL phase-detection AF.
Object tracking AF.
AF Micro Adjust.
1200 Zone exposure metering.

ISO

ISO 100 - 16,000 (25,600 with multi-image combination. Expands down to ISO 50).
Auto ISO with customizable lower and upper limits.

Shutter

12fps burst mode at full 24.3 megapixel resolution.
1/8000 - 30sec (and Bulb) is the shutter speed range.
Shutter rated for 150,000 actuations.

Ergonomics and functions

TruFinder XGA OLED Electronic Viewfinder with 2359K dots resolution with full 100% frame coverage.
TruBlack XtraFine LCD screen (3"/ 7,5 cm) with 921.6K dots resolution with pull-out three-hinge tilt/swivel functionality.
Live View with full-time Phase Detection AF.
Top panel LCD with illumination.
Built-in dark red auto-focus illuminator.
Dual anti-dust sensor cleaning system.
SteadyShot INSIDE, in-body image stabilization system.
D-Range Optimiser (5 levels and Auto).
Stereo microphone and external mic socket.
A magnesium alloy body with weather sealing.
Built in GPS (SLT-A77V model only).
UHS-I compatible.^[2]
3D Sweep Panorama.

Video

Full HD Movies at 60p, 60i, or 24p all at full HD 1080p resolution.
AVCHD / MP4 recording formats.
MPEG-4 AVC / H.264 video compressions.
Dolby Digital (AC-3) / MPEG-4 AAC-LC audio recording formats.

Firmware updates

On 5 February 2013, Sony released^[3] a new firmware V1.07, with the following enhancement:

Added support for Sony Alpha Lenses (with automatic compensation compliancy): SAL100M28, SAL50M28, SAL85F28, SAL18200, SAL20F28, SAL28F28.

Performance

In the DxOMark Overall Sensor Score test, which is based on all characteristics of a camera sensor, the APS-C (23.5x15.6mm sensor size) Sony Alpha 77 scored 78 points, only one point less than the full-format (36x24mm sensor size) DSLRs Sony Alpha 900 and Canon EOS 5D Mark II.^[4]

Reception

Overall the reception for the Sony SLT-A77 since its release has been mixed to positive.

Digital Photography Review awarded the Sony SLT-A77 an overall score of 81% and a silver award, praising its innovative and detailed EVF viewfinder and its fast 12fps shooting mode but criticizing its JPEG quality and noise level especially at high ISO.^[5]

Photography Blog gave the Sony SLT-A77 a 5 out of 5 stars praising its innovative EVF display, the inclusion of full 1080p video, built-in GPS, 12fps burst mode, dual control dials, top-panel LCD, a 3-way rear screen and myriad of creative effects such as HDR, Dynamic Range Optimization, creative styles, picture effects and the innovative sweep panorama mode.^[6]

References

↑ "Sony SLT-A77 Camera Review". PhotographyTalk. Retrieved August 22, 2012.
↑ http://www.transcend-info.com/Learning/?LC=2&Func1No=3&Func2No=211&Func3No=136 . Retrieved September 16, 2013.
↑ Sony : SLT-A77V updates | Download updates for SLT A77V | SLTA77V
↑ www.dxomark.com Retrieved 28 September 2013.
↑ Sony SLT-A77 In-depth Review: Digital Photography Review
↑ Sony A77 Review | PhotographyBLOG

External links

Wikimedia Commons has media related to Sony SLT-A77.

Official Sony site

back of the Alpha 77

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

	Sensor	2004		2005				2006				2007				2008				2009				2010				2011				2012				2013				2014
		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
High-end	Full frame																		α900																					HV
																							α850												α99
Advanced	APS-C	DG-7D												α700																α77
Midrange																														α65
																										α55							α57
						DG-5D			α100													α550				α580										α58
																						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
HD video capable (Video AF)
Dual phase-detection AF (italic)

DSLR, SLT and MILC cameras with HD video (uncompressed – 4K resolution) mode (comparison)

Canon
EOS

High-end	5D Mark II (2008) 7D (2009) 1D Mark IV (2009) 1D X (2012) 5D Mark III^H (2012) 1D C (2012) 6D^HGW (2012)

Mid-range	500D (2009) 60D (2010) 550D (2010) 600D (2011) 650D^H (2012) EOS M (2012) 700D^H (2013) 70D^HW (2013) EOS M2 (2013)

Entry-level	1100D (2011) 100D (2013)

Nikon
D / 1 series

High-end	D300S^Tg (2009) D3S^Tg (2009) D800/D800E^THg (2012) D4^THg (2012) D600^THg (2012) D610^THg (2013)

Mid-range	D90^g (2008) D5000^Tg (2009) D7000^Tg (2010) D5100^THg (2011) 1 V1^TSFg (2011) 1 V2^TSFg (2012) D5200^THg (2012) D7100^THg (2013) D5300^THGW (2013)

Entry-level	D3100^g (2010) 1 J1^TSFg (2011) D3200^g (2012) 1 J2^TSFPg (2012) 1 S1^TSFPg (2013) 1 J3^TSFPg (2013) 1 AW1^TSFPg (2013) D3300^Pg (2014)

Olympus
Micro 4/3

Mid-range	E-M5 (2012) E-P5 (2013) E-M1 (2013)

Entry-level	E-PL1 (2010) E-P1 (2010) E-P2 (2010) E-PL2 (2011) E-PL3 (2011) E-P3 (2011) E-PM1 (2011) E-PL5 (2012) E-PM2 (2012)

Panasonic
Lumix

Mid-range	GH1 (2009) GH2 (2010) GH3^THW (2012) GM1^THW (2013) GH4^THW (2014)

Entry-level	GF1 (2009) G10 (2010) G2 (2010) GF2 (2010) G3 (2011) GX1 (2011) GF3 (2011) GF5 (2012) G5 (2012)

Pentax
K / Q series

Mid-range	K-7^TH (2009) K-5^THg (2010) K-30^THg (2012) K-5 II/K-5 IIs^THg (2012) K-50^THg (2013) K-3^THg (2013)

Entry-level	K-x^H (2009) K-r^THg (2010) Q^T (2011) K-01^THg (2012) Q10^T (2012) K-500^THg (2013) Q7^T (2013)

Samsung
NX series

Mid-range	NX5^Pg (2010) NX10^Pg (2010) NX11^Pg (2010) NX20^PgW (2012) Galaxy NX^PgW (2013)

Entry-level	NX100^Pg (2010) NX200^Pg (2011) NX1000^PgW (2012) NX210^PgW (2012) NX300^PgW (2013) NX1100^PgW (2013) NX2000^PgW (2013)

Sony
Alpha

High-end	α99V^HPG/α99^HP (2012) α7/α7R^HPWg (2013)

Mid-range	α580^HP (2010) α560^HP (2010) α55V^HPG/α55^HP (2010) α77V^HPG/α77^HP (2011) NEX-7^HP (2011) NEX-6^HPW (2011) α65V^HPG/α65^HP (2011) α57^HP (2012) α58^HP (2013)

Entry-level	NEX-3/NEX-3C^HP (2010) NEX-5/NEX-5C^HP (2010) α33^HP (2010) α35^HP (2011) NEX-5N^HP (2011) NEX-C3^HP (2011) NEX-F3^HP (2012) α37^HP (2012) NEX-5R^HPW (2012) NEX-5T^HPW (2013) α3000 (2013) α5000 (2014)

Leica M
Fujifilm X

High-end	Leica M (2012)

Mid-range	Fujifilm X-Pro1 (2012) Fujifilm X-E1 (2012) Fujifilm X-E2 (2013)

Entry-level	Fujifilm X-M1 (2013) Fujifilm X-A1 (2013)

Timelapse^T — Slow motion^S — Fast fps^F — HDR^H — Panorama^P — GPS^G(opt.)^g — WiFi^W

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