Sony a550 vs Sony a300

This is a full comparison between the cameras Sony a550 and Sony a300. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Sony.

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

Both these cameras have the same sorts of sensor (called "Sony APS-C") which means that if you compare these cameras side by side the lenses will also have the same experienced focal length. Neither of the cameras has a Full frame sensor which means that you will get a "crop factor" where the camera's sensor size affect the focal length with a multiplier.

** 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)

Resolution

Sony a550 has a 14 MP (Megapixels) resolution while Sony a300 has 10 MP. If we break down this in more detail this is the data behind the numbers:

Sony a550 has a 40 % larger resolution than Sony a300. 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 Sony a300. Sony a550 has an ISO range that stretches from 200 to 12800 while Sony a300 has 100 to 3200.

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony a550
Lens compatibility chart for Sony a300

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 Sony a300 can shoot up to 3 pictures per seconds.

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

Though, neither Sony a550 or Sony a300 can shoot movies so if that is a functionality that you are really looking for you should look elsewhere.

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.

These two cameras weigh exactly the same so there is no difference there. Please see the details below.

Sony a550 vs Sony a300 Specs

Below you will find the complete and detailed technical specs for both Sony a550 and Sony a300, 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	Sony a300
Name	Sony a550	Sony a300
Manufacturer	Sony	Sony
Release Date and Price	Sony a550	Sony a300
Release Year	2009	2008
Release Date	2009-08-27	2008-01-30
MSRP	949 USD	799 USD
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Camera Type	Sony a550	Sony a300
Camera Type	DSLR	DSLR
Sensor	Sony a550	Sony a300
Sensor Size	APS-C (approx 23.5 x 15.6 mm)	APS-C (approx 23.5 x 15.6 mm)
Sensor Type	CMOS	CCD
Resolution	4592 x 3056 pixels	3872 x 2592 pixels
Megapixels	14 MP	10 MP
Image Processor	Bionz	Bionz
Image	Sony a550	Sony a300
ISO Range	200 - 12800	100 - 3200
White Balance Presets	6	6
Custom White Balance	Yes	Yes
Image Stabilization	Yes (Sensor-Shift)	Yes (Sensor-Shift)
Image Stabilization CIPA Rating	0 stops	0 stops
Uncompressed format	RAW	RAW
Optics & Focus	Sony a550	Sony a300
Autofocus Motor	Yes	Yes
Autofocus	Phase Detect Multi Area Selective Single Point Single Continuous Face Detection LiveView	Phase Detect Multi Area Center Selective Single Point Single Continuous LiveView
Focus Points	9	9
Lens Mount	Sony A See Compatible Lenses	Sony A 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	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
Screen & Viewfinder	Sony a550	Sony a300
Articulated LCD	Tilting	Tilting
Screen size	3”	2.7”
Screen dots	921600	230000
Touch screen	No	No
Screen type	N/A	N/A
Live view	Yes	Yes
Viewfinder Type	Optical (pentamirror)	Optical (pentamirror)
Viewfinder Coverage	95%	95%
Viewfinder Magnification	0.8× (0.53× 35mm equiv.)	0.74× (0.49× 35mm equiv.)
Viewfinder Resolution	N/A	N/A
Photography features	Sony a550	Sony a300
Frames per second	7 fps	3 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	No
Metering modes	Multi Center Weighted Spot	Multi Center Weighted Spot
Exposure Compensation	+/- 2 (at 1/3 EV steps)	+/- 2 (at 1/3 EV steps)
Videography features	Sony a550	Sony a300
Video recording	No	No
Video format	N/A	N/A
Video resolution	N/A	N/A
Built-in Microphone	No	No
Built-in Speakers	No	No
Storage	Sony a550	Sony a300
Memory Card	Memory Stick Pro Duo SD/SDHC	Compact Flash
Connectivity	Sony a550	Sony a300
HDMI Output	Yes	No
Microphone Port	No	No
Headphone Port	No	No
Wireless	No	No
Remote Control	Yes (Wired or Wireless (Optional))	Yes (Wired or wirelss (optional))
GPS	No	No
Body & Dimensions	Sony a550	Sony a300
Enviromentally sealed	No	No
Battery	Battery Pack	Battery Pack
Battery Details	Lithium-Ion NP-FM500H rechargeable battery & charger	NP-FM500H
Battery Life (CIPA)	480 shots	730 shots
Width	137 mm	131 mm
Height	104 mm	99 mm
Depth	84 mm	75 mm
Weight	632 gram	632 gram