False color filter
The 'False color filter' automatically removes the moire effect which are a consequence of the Bayer interpolation which is carried out on the image data. As you can see from the samples below with the false color filter disabled moiré patterns are clearly visible, when enabled these are virtually invisible. The side effect is that colour saturation of non-artifact elements can be effected (see the colour of the yellow rope in the sample below. The false color filter also increases conversion time for RAW images (it's on by default).
|False color filter disabled||False color filter enabled (default)|
With one or more image selected you can save the images as either JPEG, 8-bit TIFF or 16-bit TIFF. These images can be saved with the same filename (suffixed with either _RJ, _RT8 or _RT16) or with new filenames based on a pattern and numeric sequence.
A little known (at least at first) secret about the D30's RAW files is that they contained a small JPEG file. The same is true of the D60's RAW files, except that these are notably larger, 2048 x 1360 to be exact. The new RAW Image Converter allows you to extract JPEG's from a single or selection of RAW files (.CRW). This function is VERY fast and enables you to in effect shoot 'RAW + JPEG' at the same time (although different resolutions). Extracting JPEG's from 40 images took just 4 seconds on my PC. Note that settings changes such as white balance, digital exposure compensation etc. do not apply to extracted JPEG's.
Sample JPEG's extracted from RAW files
Image file information (from file header)
The text below is an example of the information available in the bottom right hand pane of the main TWAIN / RAW converter window. As you can see it covers a wide range of exposure and camera setting information as well as a complete set of the custom function settings.
RAW Conversion Performance
The test machine used was a desktop PC with dual Athlon 1592 Mhz (1900+) CPU's 1 GB of RAM running Windows XP. Software used was Canon RAW Image Converter 2.0. A group five of RAW images were selected from the thumbnail window and then the 'Save File' option was used to convert images directly to the destination format. The conversion process was timed and divided by the number of images converted.
|Conversion||Settings||Time taken per image||Time for 5 images|
|RAW -> JPEG (4)||Normal, False Color Filter, No Rotate||22.8 sec||1 mins 54 sec|
|RAW -> JPEG (4)||Normal, No False Color Filter, No Rotate||19.6 sec||1 mins 38 sec|
|RAW -> JPEG (4)||Normal, False Color Filter, Rotate 90°||27.2 sec||2 mins 16 sec|
|RAW -> TIFF||Normal, False Color Filter, No Rotate||18.0 sec||1 mins 30 sec|
|RAW -> TIFF 16-bit||Normal, False Color Filter, No Rotate||19.6 sec||1 mins 38 sec|
After the vast speed improvements we saw with the EOS-1D I was a little disappointed to find the D60's RAW files take around 20 seconds a piece to convert. That said the improvements in the RAW Image Converter interface and the ability to extract JPEG's is very welcome and can make it easier to identify the image you want without converting everything.
RAW vs. JPEG resolution
Below you can see two 100% crops taken from images shot within seconds of each other. The first crop is from a Large/FINE JPEG, the second from a TIFF created from a RAW (.CRW) file using Canon RAW Image Converter. You can click on either image or the links below the image to download a TIFF version of the crops. As you can see there is no resolution gain between JPEG and RAW using Canon's standard software. I expect third party RAW conversion packages to appear later which may be able to produce little more resolution. Lens: 50 mm F1.4 @ F9.0
|Click here for TIFF version of crop||Click here for TIFF version of crop|
|It's good to be at home by Nightcrawler12|
from Best photo of the week...
|Tiny tree by Kaappo|
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