格式 |
JPEG |
TARGA |
公司 |
Joint Photographic Experts Group |
Truevision (now AVID) |
说明 |
差不多所有数码相机都会有把图像保存为JPEG的选项。JPEG格式支持每色8位(红,绿,蓝),文件大小也比较小。只要不使用重度压缩,图像质量不会受太大的影响。不过JPEG文件如果不断被修改,保存的话,很有可能会退化。若您计划以后修改照片图像,或不能接受图像失真,把它们保存为非JPEG的无损图像格式的话会比较好。话虽如此,JPEG大致上是最适合网络发布的格式。 |
TARGA File Format, is a raster graphics file format. It was the native format of Truevision Inc.'s TARGA and VISTA boards, which were the first graphic cards for IBM-compatible PCs to support Highcolor/truecolor display. |
优点 |
小的文件大小,非常受欢迎 |
Many games create screenshot files in TGA format. |
缺点 |
质量损失 |
为压缩,大的文件大小。过时。 |
相机 |
Equipped with Dual Pixel CMOS AF, the EOS 70D has taken Autofocus to the next level, giving wider shooting possibilities for users. More information at Canon EOS 70D official page
Megapixels | 20.20 | Aperture | F1.0 to F91 (depends on lens used) | Focal length (35mm equiv.) | 1.6x Multiplier | ISO | Auto, 100, 200, 400, 800, 1600, 3200, 6400, 12800 (25600 with boost) | Year | 2013 |
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元数据 |
处理XMP, EXIF 或 IPTC |
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