Printing in Capture One 6

NNN634307094341307853

• 2011年03月02日 10:24

I don´t understand, how Capture one 6 prints an image.

1. Import the image
2. Use the crop-tool...so, which resolution has the image at this point???
3. Go to the "printing", again the question: how do I alter the resolution of the image? For example, I need 360 dpi (Epson Stylus Color 3800), size of the image should be 190mm x 277mm. I don´t know, how to do that.

Wolfgang

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  Paul Steunebrink

  • 2011年03月02日 12:04

  Maybe I can sheld some light on this (or maybe not).
  
  The amount of pixels of an image versus the resolution of an image (amount of pixels or dots per distance like inch or cm) are two distinct items that should not be mixed. Both can be referred to when one speaks of the 'size' of an image, hence the confusion.
  
  When you crop an image, it affects the amount of pixels of that image, that is the absolute amount of pixels. It does not affect the resolution. Next, you can define a particular resolution on output in Capture One, 300 dpi for example. Now you can do the math: a particular amount of pixels (example: 3000 px long edge), and a particular resolution (300 dots per inch) will result in an image of 10 inch physical size. In Capture One you can choose to define the physical size, the resolution of the amount of pixels on output. One influences the other.
  
  Now, let's go printing. The output is now a print, not a file. Again, cropping affects the amount of pixels of your source only. Next, the printer driver renders (=calculates) the image before feeding it to the print device. Some printer drivers display selectable resolution values in the print dialog of Capture One, some not. The latter group often allow to set it in the Print Settings dialog (details of the print driver) directly or through the print quality settings, like Epson does.
  
  The bottom line is not to bother to much about resolution but select print quality instead. The magic is done in the background and you have only that amount of control that the printer driver settings allow you to have.

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  NNN634307094341307853

  • 2011年03月02日 13:42

  Thank you very much Paul, this helps a lot.
  
  So, the absolute size of an image in the crop-tool is based on the resolution in the output? Is that correct?
  For Example:
  5000 px short edge size -> 720dpi in output -> crop-tool: 5x 7 inch -> final image: 6,944 inch short edge size -> correct?
  
  Conclusion: dot = px ?
  
  Regards
  Wolfgang

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  Paul Steunebrink

  • 2011年03月02日 15:22

  The crop tool does not have any affect on (absolute) size, the crop however does. The crop tool is not 5 x 7 inch, it is 5 x 7 aspect ratio. Based on the pixels of the (raw) file, the size of the crop and output settings, it results in a particular amount of pixels.
  
  For a clear discussion it is best to make a distinction between file output and printer output. Printer output works through a different math, I assume (and I may not be correct because Capture One printing is new to me too). What I tried to explain in my previous post but was not specific about, is that the printer driver renders a particular amount of pixels (=dots) up or down to the print resolution (of 720 dpi for example) you select to match a particular print mode or print quality setting.
  
  To clarify this with your example of an image with a short edge of 5000 px and 720 dpi print resolution, you would end up with a print of 6,9 inch short edge size. However, when you print it larger, the driver will calculate the required pixels. This is not different from how the process goes when printing from Photoshop. This happens in the background and is beyond our control, as far as I understand the matter.
  
  I am open for better explanations (as always).

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