Rob - Thanks for your help and explanations
Quote:
Originally Posted by robski
I assume this printer came with software to print from and included a printer profile for this printer. Also are you using Canon Ink ?
(Yes, the Canon came with software for printing and I always set it up for highest quality print and Photo Pro paper - I use Canon Ink at all times. The colour cartridge is a single multi colour affair - Number 24)
I have much the same problem with Africian Violets. What I did find help was to use flash as I could set the camera to a known light source and included part of a gray card to check colour balance and exposure.
Let me start off by stating I have very little pratical knowledge of printing photos and no knowledge of this printer. My day job is on the technical side of pre-press systems in the print (press) industry. For my sins I have to get my head around the technical issues of colour management.
So before you rush out to buy a new printer it maybe worth trying to understand some of the problems.
(Not at the moment thinking about changing printers but wonder if a canon multi tank printer would be both cheaper in use and produce better "blues")
The human eye can see a certain range of colours. The camera can record another range of colours. The phoshors on the CRT can display yet another range of colours and the CMYK pigments of the printer also has it's own range of colours.
Where these ranges overlap, colours are generally faithfully reproduced. It is the areas outside of this boundry that cause the problems. Colour managment is about preventing these colours (clipping) or scaling (re-mapping) colours to fit into the boundary.
I have taken your recent posting and veiwed in PS to show gamut warning ( these are the colour that won't print correctly in CMYK). The attached shows grey where the colour is out of range.
Also attached are diagrams showing the Adobe rgb and srgb colours spaces which your camera or image editing software maybe applying.
The larger area within the loop is the range of colours the human vision system can see. The area in the triangle is the range of colours within that colour space.
The srgb is intended for CRT monitor display of images and Adobergb is intended for Printing with CMYK inks. ( C = Cyan, M = Magenta, Y = Yellow & K = Black )
You can see that there is not a hugh range of blues in either colour space.
The Adobergb has a much wider range of greens and a slightly better range of blues.
(So does this mean in layman terms that all CMYK printers are always going to have difficulty in printing correct vivid blues?)
As an aside some of the more expensive printers use 6 inks to give a wider range of colours. You would need to ask an expert if this helps with the Blues.
It would be interesting to see if you get the same problem when printed by a photo lab.
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(Never sent a photo for lab processing but might give it a whirl - any recommendations?)
Cheers
Stuart