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Colour space

Great news! The DiMAGE 7i's colour space is very closely matched to sRGB. This means there is now no need to run DiMAGE 7i images through the Minolta DiMAGE Viewer to get correct colour on sRGB devices. Testing this by running some 7i images through Minolta DiMAGE Viewer we noted only a very subtle difference in the lightness of shadows, no major difference in colour. You will be able to see this subtle difference by rolling your mouse over the image below.

Download: Original (450 KB) / Re-saved as sRGB (425 KB)


JPEG/TIFF/RAW Image Size & Quality


Standard Test Scene

The DiMAGE 7i offers a wide variety of resolution and image format options. You can choose from JPEG (three compression levels) or TIFF at 2560 x 1920 (full native resolution), 1600 x 1200, 1280 x 960 or 640 x 480. As well as RAW format which is fixed at 2560 x 1920.

To give an impression of what some of the combinations of image size and quality produce the table below is a cross reference of some of them:

  • 2560 x 1920 RAW
  • 2560 x 1920 TIFF
  • 2560 x 1920 JPEG FINE
  • 2560 x 1920 JPEG STANDARD
  • 2560 x 1920 JPEG ECONOMY
  • 1600 x 1200 JPEG FINE
  • 1280 x 960 JPEG FINE
  • 640 x 480 JPEG FINE

Images below are cropped 240 x 100 area of the image magnified 200% (nearest neighbour).


 
2560 x 1920
RAW
Minolta RAW (.MRW - not available for download) as a 2,036 KB JPEG
TIFF
14,457 KB (Not available for download)
JPEG
FINE

2,351 KB
JPEG
STD.

1,189 KB
JPEG
ECON.

795 KB
 

 
1600 x 1200
JPEG
FINE

1,010 KB
 

 
1280 x 960
JPEG
FINE

694 KB
 

 
640 x 480
JPEG
FINE

275 KB

There is very little visible difference between the JPEG FINE and TIFF (Super-Fine) images. From what we can see here TIFF isn't worth the additional storage overhead. RAW offers a different option, it allows you to select parameters such as white balance, contrast, sharpening etc. during post-processing on a computer. The disadvantage of RAW is the storage overhead and inability to open the file in anything but Minolta's DiMAGE Viewer.

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