Specifications#
- Brand
- Sony
- Model
- Alpha 77
- Also known as
- SLT-A77V
- Camera type
- DSLR
- Lens mount
- Sony / Minolta A-mount
- Sensor size
- 23.5 × 15.6 mm (APS-C)
- Crop factor
- 1.53×
- Resolution
- 24.3 MP (6,050 × 4,016 px)
- ISO range
- 50 – 16,000
- Continuous shooting
- 12 fps
- Sensor
- Exmor APS HD CMOS sensor (23.5 X 15.6mm)
- Storage
- Memory Stick PRO Duo/Pro-HG Duo/PRO-HG HX Duo media - SD, SDHC and SDXC memory card
- Viewfinder
- TruFinder XGA OLED Electronic View Finder(2,359k dots)
- AF points / area
- Wide (auto, 19 points)/Zone/Spot/Local selectable
- 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
- Shutter
- Electronically-controlled, vertical-traverse, focal-plane shutter
- 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
- Battery
- InfoLITHIUM NP-FM500H
- Dimensions
- Width (mm) 142.6 Height (mm) 104.0 Depth (mm) 80.9
- Lens
- Interchangeable, Sony A-mount
- Drive
- 24.3megapixel at 12fps
Specifications merged from Wikipedia, Wikidata, Lensfun and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 1.53 to get the full-frame field of view. Angles are for a rectilinear lens focused at infinity.
| Lens on this camera | Full-frame equivalent | Horizontal | Vertical | Diagonal |
|---|---|---|---|---|
| 8 mm | 12 mm | 111.5° | 88.5° | 120.9° |
| 10 mm | 15 mm | 99.2° | 75.9° | 109.3° |
| 12 mm | 18 mm | 88.8° | 66.0° | 99.2° |
| 14 mm | 21 mm | 80.0° | 58.2° | 90.4° |
| 16 mm | 25 mm | 72.6° | 52.0° | 82.8° |
| 18 mm | 28 mm | 66.3° | 46.9° | 76.2° |
| 20 mm | 31 mm | 60.9° | 42.6° | 70.4° |
| 24 mm | 37 mm | 52.2° | 36.0° | 60.9° |
| 28 mm | 43 mm | 45.5° | 31.1° | 53.5° |
| 35 mm | 54 mm | 37.1° | 25.1° | 43.9° |
| 40 mm | 61 mm | 32.7° | 22.1° | 38.8° |
| 50 mm | 77 mm | 26.4° | 17.7° | 31.5° |
| 56 mm | 86 mm | 23.7° | 15.9° | 28.3° |
| 70 mm | 107 mm | 19.1° | 12.7° | 22.8° |
| 85 mm | 130 mm | 15.7° | 10.5° | 18.8° |
| 100 mm | 153 mm | 13.4° | 8.9° | 16.1° |
| 135 mm | 207 mm | 9.9° | 6.6° | 11.9° |
| 200 mm | 307 mm | 6.7° | 4.5° | 8.1° |
| 300 mm | 460 mm | 4.5° | 3.0° | 5.4° |
| 400 mm | 614 mm | 3.4° | 2.2° | 4.0° |
| 600 mm | 920 mm | 2.2° | 1.5° | 2.7° |
| 800 mm | 1227 mm | 1.7° | 1.1° | 2.0° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 19.6 µm (the 0.030 mm full-frame standard scaled by the crop factor). Detailed tables: 24 mm f/1.8, 24 mm f/2.8, 35 mm f/1.8, 35 mm f/2.8, 50 mm f/1.8, 50 mm f/2.8.
| Focal | Aperture | 50.0 cm | 1.00 m | 2.00 m | 3.00 m | 5.00 m | 10.0 m | Hyperfocal |
|---|---|---|---|---|---|---|---|---|
| 14 mm | f/1.8 | 8.8 cm | 36.6 cm | 1.63 m | 4.52 m | 45.2 m | ∞ | 5.58 m |
| 14 mm | f/2.8 | 13.8 cm | 59.6 cm | 3.21 m | 16.5 m | ∞ | ∞ | 3.59 m |
| 14 mm | f/4 | 20.2 cm | 93.1 cm | 8.53 m | ∞ | ∞ | ∞ | 2.52 m |
| 14 mm | f/8 | 45.7 cm | 4.14 m | ∞ | ∞ | ∞ | ∞ | 1.27 m |
| 28 mm | f/1.8 | 2.1 cm | 8.7 cm | 35.7 cm | 81.5 cm | 2.35 m | 11.2 m | 22.3 m |
| 28 mm | f/2.8 | 3.3 cm | 13.6 cm | 56.2 cm | 1.30 m | 3.95 m | 27.1 m | 14.3 m |
| 28 mm | f/4 | 4.7 cm | 19.6 cm | 81.9 cm | 1.95 m | 6.58 m | 2.0 km | 10.0 m |
| 28 mm | f/8 | 9.5 cm | 40.3 cm | 1.86 m | 5.49 m | 643 m | ∞ | 5.04 m |
| 48 mm | f/1.8 | 0.7 cm | 2.9 cm | 11.9 cm | 27.1 cm | 76.1 cm | 3.11 m | 65.5 m |
| 48 mm | f/2.8 | 1.1 cm | 4.5 cm | 18.6 cm | 42.3 cm | 1.19 m | 5.01 m | 42.1 m |
| 48 mm | f/4 | 1.5 cm | 6.5 cm | 26.6 cm | 60.8 cm | 1.73 m | 7.63 m | 29.5 m |
| 48 mm | f/8 | 3.1 cm | 13.0 cm | 54.0 cm | 1.25 m | 3.79 m | 24.9 m | 14.8 m |
| 78 mm | f/1.8 | 0.2 cm | 1.1 cm | 4.4 cm | 10.1 cm | 28.5 cm | 1.15 m | 173 m |
| 78 mm | f/2.8 | 0.4 cm | 1.7 cm | 6.9 cm | 15.8 cm | 44.4 cm | 1.80 m | 111 m |
| 78 mm | f/4 | 0.5 cm | 2.4 cm | 9.9 cm | 22.6 cm | 63.5 cm | 2.59 m | 77.8 m |
| 78 mm | f/8 | 1.1 cm | 4.7 cm | 19.8 cm | 45.3 cm | 1.29 m | 5.46 m | 39.0 m |
Equivalent aperture#
Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.
Diffraction & pixel pitch#
With 3.88 µm pixels, diffraction starts to soften pixel-level detail around f/5.8. For maximum sharpness keep landscapes between f/3.2 and f/6; stopping down further trades detail for depth of field.
| Aperture | Airy disk diameter | Spread over | At 100% view |
|---|---|---|---|
| f/2.8 | 3.8 µm | 1.0 px | sharp |
| f/4 | 5.4 µm | 1.4 px | sharp |
| f/5.6 | 7.5 µm | 1.9 px | sharp |
| f/8 | 10.7 µm | 2.8 px | slight softening |
| f/11 | 14.8 µm | 3.8 px | visibly soft |
| f/16 | 21.5 µm | 5.5 px | visibly soft |
| f/22 | 29.5 µm | 7.6 px | visibly soft |
Maximum print sizes#
At 24.3 MP the Sony Alpha 77 produces 6,050 × 4,016 pixel images. See the 24 megapixel guide or the print size calculator.
| Resolution | Typical use | Inches | Centimetres |
|---|---|---|---|
| 300 DPI | Photo-lab quality | 20.2 × 13.4 in | 51 × 34 cm |
| 240 DPI | Fine-art inkjet | 25.2 × 16.7 in | 64 × 43 cm |
| 200 DPI | Wall print | 30.2 × 20.1 in | 77 × 51 cm |
| 150 DPI | Poster, viewed from 1 m+ | 40.3 × 26.8 in | 102 × 68 cm |
Night-sky exposure limits#
Longest exposure before stars trail. The NPF rule accounts for pixel pitch and is stricter than the classic 500 rule — use it for pin-sharp stars on high-resolution sensors.
| Focal length | 500 rule | NPF f/1.8 | NPF f/2.8 | NPF f/4 |
|---|---|---|---|---|
| 9 mm (14 mm eq.) | 36.2 s | 19.9 s | 23.8 s | 28.5 s |
| 13 mm (20 mm eq.) | 25.1 s | 13.8 s | 16.5 s | 19.7 s |
| 16 mm (25 mm eq.) | 20.4 s | 11.2 s | 13.4 s | 16.0 s |
| 23 mm (35 mm eq.) | 14.2 s | 7.8 s | 9.3 s | 11.2 s |
| 33 mm (51 mm eq.) | 9.9 s | 5.4 s | 6.5 s | 7.8 s |
Handheld shutter speed guide#
The reciprocal rule uses the equivalent focal length. High-resolution sensors may need one stop faster than this for pixel-sharp results.
| Focal length | No stabilisation (1/equiv. focal) | With 3-stop IS | With 5-stop IBIS |
|---|---|---|---|
| 16 mm | 1/25 s | 0.3 s | 1.3 s |
| 33 mm | 1/50 s | 1/6 s | 0.6 s |
| 65 mm | 1/100 s | 1/13 s | 0.3 s |
| 130 mm | 1/200 s | 1/25 s | 1/6 s |
Lenses for the Sony Alpha 77#
Native Sony / Minolta A-mount lenses in our database (129 total). Also adaptable: T-mount (T2), M42 screw mount, Deckel (DKL), Tamron Adaptall, M39 / LTM (Leica thread).
- Samyang 8mm f/3.5 Fish-Eye CS 8 mm
- Samyang 10mm f/2.8 ED AS NCS CS 10 mm
- Laowa 12mm f/2.8 Zero-D 12 mm
- Samyang 14mm f/2.8 AE ED AS IF UMC 14 mm
- Laowa 15mm F/4 Wide Angle Macro 15 mm
- Samyang 16mm f/2.0 ED AS UMC CS 16 mm
- Samyang 20mm f/1.8 ED AS UMC 20 mm
- Samyang 24mm f/1.4 ED AS IF UMC 24 mm
- Samyang T-S 24mm f/3.5 ED AS UMC 24 mm
- Laowa 60mm f/2.8 2X Ultra-Macro 60 mm
- Samyang 85mm f/1.4 IF UMC Aspherical 85 mm
- Samyang 135mm f/2 ED UMC 135 mm
- Sigma 4.5mm f/2.8 EX DC HSM circular fisheye 4.5 mm
- Sigma 8-16mm f/4.5-5.6 DC HSM 8–16 mm
- Sigma 10-20mm f/3.5 EX DC HSM 10–20 mm
- Sigma 10-20mm f/4-5.6 EX DC 10–20 mm
- Sigma 10mm f/2.8 EX DC Fisheye HSM 10 mm
- Tamron SP AF 10-24mm f/3.5-4.5 Di II LD Aspherical (IF) 10–24 mm
- Tamron SP AF 11-18mm f/4.5-5.6 Di-II LD Aspherical (IF) 11–18 mm
- Tokina AF 11-16mm f/2.8 AT-X Pro DX 11–16 mm
- Tokina AT-X 116 PRO DX II (11-16mm f/2.8) 11–16 mm
- Sigma 12-24mm F4.5-5.6 II DG HSM 12–24 mm
- Sigma 14mm f/2.8 EX 14 mm
- Sigma 14mm f/2.8 EX Aspherical HSM 14 mm
- Sigma 14mm f/3.5 EX 14 mm
- Sigma 15-30mm f/3.5-4.5 EX DG Aspherical 15–30 mm
- Sigma 15mm f/2.8 EX DG Diagonal Fisheye 15 mm
- Tamron SP 15-30mm f/2.8 Di VC USD 15–30 mm
- Sony AF DT 16-105mm f/3.5-5.6 16–105 mm
- Sony DT 16-50mm f/2.8 SSM 16–50 mm
- Sony Zeiss Vario-Sonnar T* 16-35mm f/2.8 ZA SSM II 16–35 mm
- Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro B016 16–300 mm
- Sigma 17-35mm F2.8-4 EX DG Aspherical HSM 17–35 mm
- Sigma 17-35mm f/2.8-4 EX DG 17–35 mm
- Sigma 17-50mm f/2.8 EX DC OS HSM 17–50 mm
- Sigma 17-70mm f/2.8-4 DC Macro OS HSM | Contemporary 013 17–70 mm
Similar cameras#
Other APS-C cameras from around the same time.
- Nikon D40 2006
- Pentax K110D 2006
- Nikon D60 2008
- Nikon D7000 2010
- Pentax K-5 2010
- Nikon D7100 2013
- Pentax K-3 2013
- Samsung Galaxy NX 2013
- Ricoh Pentax K-3 II 2015
- Nikon D5600 2016
- Ricoh Pentax KP 2017
- Nikon Z50 2019
Frequently asked questions#
What is the crop factor of the Sony Alpha 77?
The Sony Alpha 77 has a crop factor of 1.53× relative to 35 mm full frame (diagonal 28.2 mm vs 43.3 mm).
What size is the Sony Alpha 77 sensor?
23.5 × 15.6 mm (APS-C), an area of 367 mm² — 42% of full frame.
Is the Sony Alpha 77 full frame?
No — its sensor is APS-C, which is 2.4× smaller in area than full frame.
How many megapixels does the Sony Alpha 77 have?
24.3 megapixels (6,050 × 4,016 pixels), enough for a 20 × 13 inch print at 300 DPI.
What lens mount does the Sony Alpha 77 use?
The Sony Alpha 77 uses the Sony / Minolta A-mount (flange distance 44.50 mm).
How long can I expose the night sky with the Sony Alpha 77?
With a 13 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 17 s.
Sources & licences#
- Wikipedia: Sony Alpha 77 — CC BY-SA 4.0
- Wikidata Q1630030 — CC0
- Lensfun camera database — CC BY-SA 3.0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources