1. Home
  2. Gear
  3. Cameras
  4. Sony
  5. Sony Alpha 99 II

Sony Alpha 99 II

Sony · Sony Alpha · 1.00× crop

The Sony Alpha 99 II uses the Sony Alpha mount with a 1.00× crop factor (about 36.0 × 24.0 mm sensor), 42.4 megapixels, announced in 2016. Below: equivalent focal lengths, maximum shutter speeds for sharp stars, a hyperfocal distance chart, compatible lenses and how to check the shutter count.

Mount
Sony Alpha
Crop factor
1.00×
Sensor (approx.)
36.0 × 24.0 mm
Resolution
42.4 MP
pixel pitch ≈ 4.51 µm
Announced
2016
Circle of confusion
0.03 mm

Equivalent focal length & field of view

Lens focal lengthFull-frame equivalentDiagonal FOVHorizontal FOV
10 mm10 mm130.4°121.9°
12 mm12 mm122.0°112.6°
14 mm14 mm114.2°104.3°
16 mm16 mm107.0°96.7°
18 mm18 mm100.5°90.0°
20 mm20 mm94.5°84.0°
24 mm24 mm84.1°73.7°
28 mm28 mm75.4°65.5°
35 mm35 mm63.4°54.4°
50 mm50 mm46.8°39.6°
85 mm85 mm28.6°23.9°
135 mm135 mm18.2°15.2°
200 mm200 mm12.3°10.3°
300 mm300 mm8.2°6.9°
400 mm400 mm6.2°5.2°
600 mm600 mm4.1°3.4°

Multiply by the 1.00× crop factor for the full-frame equivalent field of view.

Milky Way exposure: NPF and 500 rule

Focal lengthNPF @ f/1.8NPF @ f/2.8Strict NPF @ f/2.8500 rule
10 mm19.8 s23.3 s12.6 s50.0 s
12 mm16.5 s19.4 s10.5 s41.7 s
14 mm14.2 s16.7 s9.0 s35.7 s
16 mm12.4 s14.6 s7.9 s31.2 s
18 mm11.0 s13.0 s7.0 s27.8 s
20 mm9.9 s11.7 s6.3 s25.0 s
24 mm8.3 s9.7 s5.3 s20.8 s
28 mm7.1 s8.3 s4.6 s17.9 s
35 mm5.7 s6.7 s3.7 s14.3 s
50 mm4.0 s4.7 s2.6 s10.0 s

NPF = (35 × f-number + 30 × pixel pitch) ÷ focal length, with a pixel pitch of 4.51 µm (from 42.4 MP). The strict version (Michaud's detailed NPF for the galactic core) gives pin-point stars at 100% view; the 500 rule is a loose rule of thumb that shows trailing on modern sensors.

Hyperfocal distance chart

Focal lengthf/2.8f/5.6f/8f/11f/16
14 mm2.3 m1.2 m0.8 m0.6 m0.4 m
16 mm3.1 m1.5 m1.1 m0.8 m0.5 m
18 mm3.9 m1.9 m1.4 m1.0 m0.7 m
20 mm4.8 m2.4 m1.7 m1.2 m0.9 m
24 mm6.9 m3.5 m2.4 m1.8 m1.2 m
28 mm9.4 m4.7 m3.3 m2.4 m1.7 m
35 mm15 m7.3 m5.1 m3.7 m2.6 m
50 mm30 m15 m10 m7.6 m5.3 m

Focus at the hyperfocal distance and everything from half that distance to infinity is acceptably sharp (circle of confusion 0.03 mm). Use the hyperfocal calculator for other settings.

Maximum print size

Print resolutionInchesCentimeters
150 ppi53.2 × 35.4 in135 × 90 cm
200 ppi39.9 × 26.6 in101 × 68 cm
240 ppi33.2 × 22.1 in84 × 56 cm
300 ppi26.6 × 17.7 in68 × 45 cm

300 ppi suits close viewing; 150–200 ppi is plenty for large prints viewed from a distance.

Compatible lenses (147 in our database)

LensFocal lengthMax apertureMount
Sony AF DT 16-105mm f/3.5-5.616–105 mmf/3.5Sony Alpha
Sony DT 16-50mm f/2.8 SSM16–50 mmf/2.8Sony Alpha
Sony Zeiss Vario-Sonnar T* 16-35mm f/2.8 ZA SSM II16–35 mmf/2.8Sony Alpha
Sony DT 18-55mm f/3.5-5.6 SAM18–55 mmf/3.5Sony Alpha
Sony Minolta/Sony AF DT 18-70mm f/3.5-5.6 (D)18–70 mmf/3.5Sony Alpha
Sony DT 18-135mm f/3.5-5.6 SAM18–135 mmf/3.5Sony Alpha
Sony AF DT 18-250mm f/3.5-6.318–250 mmf/3.5Sony Alpha
Sony Zeiss Vario-Sonnar T* 24-70mm f/2.8 ZA SSM II24–70 mmf/2.8Sony Alpha
Sony Carl Zeiss Distagon T* 24mm F2 ZA SSM (SAL24F20Z)24 mmf/2Sony Alpha
Sony 28-75mm F2.8 SAM28–75 mmf/2.8Sony Alpha
Sony AF DT 30mm f/2.8 SAM Macro30 mmf/2.8Sony Alpha
Sony DT 35mm f/1.8 SAM35 mmf/1.8Sony Alpha
Sony 35mm f/1.4 G35 mmf/1.4Sony Alpha
Sony 50mm f/1.450 mmf/1.4Sony Alpha
Sony DT 50mm f/1.8 SAM50 mmf/1.8Sony Alpha
Sony Zeiss Planar T* 50mm f/1.4 ZA SSM50 mmf/1.4Sony Alpha
Sony AF DT 55-200mm f/4-5.6 SAM55–200 mmf/4Sony Alpha
Sony DT 55-300mm f/4.5-5.6 SAM55–300 mmf/4.5Sony Alpha
Sony 70-300mm f/4.5-5.6 G SSM II70–300 mmf/4.5Sony Alpha
Sony 85mm F2.8 SAM (SAL85F28)85 mmf/2.8Sony Alpha
Sony AF 100mm F2.8 Macro100 mmf/100Sony Alpha
Sony Carl Zeiss Sonnar T* 135mm F1.8 ZA (SAL135F18Z)135 mmf/1.8Sony Alpha
Sony AF 500mm F8 Reflex500 mmf/500Sony Alpha
Sigma 4.5mm f/2.8 EX DC HSM circular fisheye4 mmf/2.8Canon EF, Nikon F AF
Samyang 8mm f/3.5 Fish-Eye CS8 mmf/3.5Pentax KAF, Canon EF
Sigma 8-16mm f/4.5-5.6 DC HSM8–16 mmf/4.5Sigma SA, Canon EF
Samyang 10mm f/2.8 ED AS NCS CS10 mmf/2.8Canon EF, Canon EF-M
Sigma 10-20mm f/4-5.6 EX DC10–20 mmf/4Nikon F AF, Sigma SA
Sigma 10-20mm f/3.5 EX DC HSM10–20 mmf/3.5Nikon F AF, Sigma SA
Sigma 10mm f/2.8 EX DC Fisheye HSM10 mmf/2.8Sigma SA, Nikon F AF
Tamron SP AF 10-24mm f/3.5-4.5 Di II LD Aspherical (IF)10–24 mmf/10Canon EF, Nikon F AF
Tamron SP AF 11-18mm f/4.5-5.6 Di-II LD Aspherical (IF)11–18 mmf/11Canon EF, Nikon F AF
Tokina AF 11-16mm f/2.8 AT-X Pro DX11–16 mmf/2.8Canon EF, Nikon F AF
Tokina AT-X 116 PRO DX II (11-16mm f/2.8)11–16 mmf/2.8Canon EF, Nikon F AF
Venus Laowa 12mm f/2.8 Zero-D12 mmf/2.8Canon EF, Nikon F
Sigma 12-24mm F4.5-5.6 II DG HSM12–24 mmf/4.5Nikon F AF, Canon EF
Sigma 14mm f/2.8 EX14 mmf/2.8Sigma SA, Canon EF
Sigma 14mm f/3.5 EX14 mmf/3.5Sigma SA, Canon EF
Samyang 14mm f/2.8 AE ED AS IF UMC14 mmf/2.8Pentax KAF, Canon EF
Sigma 14mm f/2.8 EX Aspherical HSM14 mmf/2.8Canon EF, Nikon F

Native and adapter-free compatible lenses from the Lensfun database. Third-party and adapted lenses may also work.

How to check the Sony Alpha 99 II shutter count

Most Sony Alpha bodies record the count in MakerNotes. Use `exiftool -ShutterCount -ShutterCount2 image.arw` on an unedited file.

ExifTool tag: ShutterCount / ShutterCount2. Always test an original, unedited file straight from the card.

Where to buy

Compare new and used prices at these retailers:

B&H PhotoAmazonKEH (used)MPB (used)

Other Sony Alpha cameras

FAQ

What is the crop factor of the Sony Alpha 99 II?
1.00×. A 24 mm lens frames like a 24 mm lens on full frame.
What shutter speed should I use for the Milky Way with the Sony Alpha 99 II?
With a 10 mm lens at f/2.8, about 23 seconds keeps stars sharp (NPF rule).
How do I check the shutter count on the Sony Alpha 99 II?
Most Sony Alpha bodies record the count in MakerNotes. Use `exiftool -ShutterCount -ShutterCount2 image.arw` on an unedited file.
Which lenses fit the Sony Alpha 99 II?
Lenses for the Sony Alpha mount and compatible mounts (Minolta AF, Tamron Adaptall) — 147 are listed above.