Sony a550 vs Nikon D5100
This is a full comparison between the cameras Sony a550 and Nikon D5100. We compare them by looking at the categories you see below.
Manufacturing
Sony a550 is manufacturered by Sony but Nikon D5100 is from Nikon. Both Sony and Nikon are well known brands though.
Sony a550 were released 2009 and Nikon D5100 was released 2011. That is a 2 years difference. In tech, this period can be of interest since technology is always improving, etc.Camera | Released |
Sony a550 | 2009 |
Nikon D5100 | 2011 |
Type of camera
Both these cameras are DSLR cameras. No difference there.
Sensors / crop factor
These cameras have different sensors. Sony a550 has a "Sony APS-C"-sensor while Nikon D5100 has a "Nikon DX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.
Camera | Focal length, 50mm f/1.8 ** |
Sony a550 | 75 mm Sony APS-C sensor Crop factor/focal length multiplier by * 1.5 |
Nikon D5100 | 75 mm Nikon DX sensor Crop factor/focal length multiplier by * 1.5 |
** Experienced focal length when using a lens such as a common "50mm f/1.8"
Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Sony)
Camera selection can affect the focal length (Nikon)
Resolution
Sony a550 has a 14 MP (Megapixels) resolution while Nikon D5100 has 16,2 MP. If we break down this in more detail this is the data behind the numbers:
Camera | Megapixels |
Sony a550 |
14 MP
14033152 pixels 4592 x 3056 |
Nikon D5100 |
16,2 MP
16084992 pixels 4928 x 3264 |
Nikon D5100 has a 15 % larger resolution than Sony a550. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.
ISO range
Sony a550 has a larger ISO-range than Nikon D5100. Sony a550 has an ISO range that stretches from 200 to 12800 while Nikon D5100 has 100 to 6400.
Camera | ISO Range |
Sony a550 | 200-12800 |
Nikon D5100 | 100-6400 |
Autofocus and lens compatibility
There is a big difference between these two cameras. Sony a550 has a built-in autofocus motor but Nikon D5100 does not. If you want to be able to use autofocus on Nikon D5100 there is a need for having an autofocus motor inside the lens. We really encourage you to look closely at our lens compatibility charts at the links below.
Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony a550
Lens compatibility chart for Nikon D5100
Pictures per second
Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a550 can shoot up to 7 pictures per seconds and Nikon D5100 can shoot up to 4 pictures per seconds.
Camera | FPS (Frames per second) |
Sony a550 | 7 |
Nikon D5100 | 4 |
Ability to record movies
It is becoming more and more popular to record movies with digital cameras.
It is only one of these two cameras that support recording movies and movie clips and that is Nikon D5100. Sadly, the Sony a550 does not support this.
Weight
The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.
Sony a550 weighs 632 gr (equal to 1.39 lb) which is 3% heavier than Nikon D5100 and its 611 gr (or 1.35 lb).
Camera | Weight |
Sony a550 | 632 gr 1.39 lb |
Nikon D5100 | 611 gr 1.35 lb |
Sony a550 vs Nikon D5100 Specs
Below you will find the complete and detailed technical specs for both Sony a550 and Nikon D5100, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.
Product |
Sony a550 |
Nikon D5100 |
Name | Sony a550 | Nikon D5100 |
Manufacturer | Sony | Nikon |
Release Date and Price |
Sony a550 |
Nikon D5100 |
Release Year | 2009 | 2011 |
Release Date | 2009-08-27 | 2011-04-05 |
MSRP | 949 USD | 359 USD |
Buy it today | ||
Camera Type |
Sony a550 |
Nikon D5100 |
Camera Type | DSLR | DSLR |
Sensor |
Sony a550 |
Nikon D5100 |
Sensor Size | APS-C (approx 23.5 x 15.6 mm) |
APS-C (approx 23.7 x 15.5 mm) Also known as "DX" |
Sensor Type | CMOS | CMOS |
Resolution | 4592 x 3056 pixels | 4928 x 3264 pixels |
Megapixels | 14 MP | 16,2 MP |
Image Processor | Bionz | EXPEED 2 |
Image |
Sony a550 |
Nikon D5100 |
ISO Range | 200 - 12800 | 100 - 6400 |
White Balance Presets | 6 | 12 |
Custom White Balance | Yes | Yes |
Image Stabilization |
Yes (Sensor-Shift) |
No |
Image Stabilization CIPA Rating | 0 stops | 0 stops |
Uncompressed format | RAW | RAW |
Optics & Focus |
Sony a550 |
Nikon D5100 |
Autofocus Motor | Yes | No |
Autofocus |
Phase Detect Multi Area Selective Single Point Single Continuous Face Detection LiveView |
Contract Detect (sensor) Phase Detect Multi Area Center Selective Single Point Tracking Single Continuous Face Detection LiveView |
Focus Points | 9 | 11 |
Lens Mount |
Sony A See Compatible Lenses |
Nikon F See Compatible Lenses |
Focal Length Multiplier |
APS-C Sensor (1.5x) 1.5x multiplier Example: 24 mm becomes 36 mm 50 mm becomes 75 mm 100 mm becomes 150 mm 200 mm becomes 300 mm |
DX / APS-C (1.5x) 1.5x multiplier Example: 24 mm becomes 36 mm 50 mm becomes 75 mm 100 mm becomes 150 mm 200 mm becomes 300 mm |
Screen & Viewfinder |
Sony a550 |
Nikon D5100 |
Articulated LCD | Tilting | Fully articulated |
Screen size | 3” | 3# |
Screen dots | 921600 | 921000 |
Touch screen | No | No |
Screen type | N/A | TFT LCD monitor |
Live view | Yes | Yes |
Viewfinder Type | Optical (pentamirror) | Optical (pentamirror) |
Viewfinder Coverage | 95% | 95% |
Viewfinder Magnification | 0.8× (0.53× 35mm equiv.) | 0.78× (0.52× 35mm equiv.) |
Viewfinder Resolution | N/A | N/A |
Photography features |
Sony a550 |
Nikon D5100 |
Frames per second | 7 fps | 4 fps |
Minimum Shutter Speed | 30 seconds | 30 seconds |
Maximum Shutter Speed | 1/4000 seconds | 1/4000 seconds |
Built-in Flash | Yes | Yes |
Built-in Flash Range | 12 meters | 12 meters |
External Flash | Yes | Yes |
Self-Timer | Yes | Yes |
Time-lapse | No | Yes |
Metering modes |
Multi Center Weighted Spot |
Multi Center Weighted Spot |
Exposure Compensation | +/- 2 (at 1/3 EV steps) | +/- 5 (at 1/3 EV, 1/2 EV steps) |
Videography features |
Sony a550 |
Nikon D5100 |
Video recording | No | Yes |
Video format | N/A |
MPEG4 |
Video resolution | N/A |
1280 x 720 1920 x 1080 |
Built-in Microphone | No | Yes |
Built-in Speakers | No | Yes |
Storage |
Sony a550 |
Nikon D5100 |
Memory Card |
Memory Stick Pro Duo SD/SDHC |
SD/SDHC |
Connectivity |
Sony a550 |
Nikon D5100 |
HDMI Output | Yes | Yes |
Microphone Port | No | Yes |
Headphone Port | No | No |
Wireless | No |
Yes Eye-Fi Connected |
Remote Control | Yes (Wired or Wireless (Optional)) |
Yes (Optional ML-L3)
|
GPS | No |
Yes Optional with GP-1 |
Body & Dimensions |
Sony a550 |
Nikon D5100 |
Enviromentally sealed | No | No |
Battery | Battery Pack | Battery Pack |
Battery Details |
Lithium-Ion NP-FM500H rechargeable battery & charger
|
Lithium-Ion EN-EL14 rechargeable battery & charger
|
Battery Life (CIPA) | 480 shots | N/A |
Width | 137 mm | 128 mm |
Height | 104 mm | 97 mm |
Depth | 84 mm | 79 mm |
Weight | 632 gram | 611 gram |