How many Megapixels does the Olympus E-330 have?

The Olympus Evolt E-330 is equipped with a a Four Thirds sensor that offers an image resolution of 7.4 megapixels (MP), or 7.4 million pixels. With its native aspect ratio of 4:3, the sensor has 3 136 horizontal pixels and 2 352 vertical pixels.

A high megapixel count makes it possible to crop any captured image substantially or to make very large prints from the image file. On the downside, large megapixel files are slower to transfer and take up more storage space on the computer harddisk. Also, high-resolution imaging requires sharper, more expensive lenses than low-res picture taking.

How large can I print with 7.4 MP?

The maximum print size of the Olympus E-330 for good quality output (200 dots per inch) amounts to 15.7 x 11.8 inches or 39.8 x 29.9 cm, for very good quality (250 dpi) 12.5 x 9.4 inches or 31.9 x 23.9 cm, and for excellent quality (300 dpi) 10.5 x 7.8 inches or 26.6 x 19.9 cm. Few people actually print their images that large on a regular basis, but it is nice to have the option to make very large prints of exceptional shots. Also, as mentioned earlier, a key advantage of high-MP cameras is that it is possible to crop an image ex-post and thereby, for example, change the composition of the capture or zoom in on some detail.

Sensor specs and performance

The table below compares the sensor specs of the Olympus E-330 to those of several similar cameras. In addition to sensor class and megapixel count, DXO values are reported as indicators of the sensor's imaging quality (higher is better). Three aspects are covered: color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Olympus E-330	Four Thirds	7.4	3136	2352	none	20.8	10.4	73	52
2.		Canon XT	APS-C	8.0	3456	2304	none	21.8	10.8	637	60
3.		Leica Digilux 3	Four Thirds	7.4	3136	2352	none	21.0	10.6	127	53
4.		Nikon D80	APS-C	10.0	3872	2592	none	22.1	11.2	524	61
5.		Olympus E-300	Four Thirds	8.0	3264	2448	none	20.4	10.1	-40	48
6.		Olympus E-400	Four Thirds	10.0	3648	2736	none	21.0	10.6	127	53
7.		Olympus E-410	Four Thirds	10.0	3648	2736	none	21.1	10.0	494	51
8.		Olympus E-500	Four Thirds	8.0	3264	2448	none	20.7	10.3	45	51
9.		Olympus E-510	Four Thirds	10.0	3648	2736	none	21.2	10.0	442	52
10.		Panasonic L1	Four Thirds	7.4	3136	2352	none	20.8	10.4	80	52
11.		Panasonic L10	Four Thirds	10.0	3648	2736	none	21.3	10.8	429	55
Note: DXO values in italics represent estimates based on sensor size and age.

In the United States, the E-330 was initially launched in January 2006 at a price of $999.

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Camera to camera comparisons

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