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Image size

Posted: Sun Aug 21, 2005 2:30 pm
by wagurto
What's the recommend image size, and DIPs to get a decent print quality for brochure presentation?
I need to print a 11x17 image to be used in presentation.
Do i have to render it with -hd option? how long do I need to render? I have no clues, this my first presentation and I really would like to impress with maxwell.
thanks

Posted: Sun Aug 21, 2005 2:43 pm
by aitraaz
Depends, of course....The larger the better, obvious - for image size up to approx. 2600 x 2000 you can render on ram (if you got 'enuff) otherwise higher res image require the -hd option, which tends to slow things down quite a bit...Go for the larger size if time permits (4000 x 3000), if not try a ps software like genuine fractals or something to scale up the image...Render time will depend on the scene and complexity, and above all, noise...So take a peek around the forum on how to reduce noise so you can cut down on render times...good luck! :wink:

Posted: Sun Aug 21, 2005 9:14 pm
by tom
Hi wagurto,

For print resolution, your image must be corresponding the real size at 300 dots per inch (DPI). If you mean 11 x 17 centimeters, you will need to convert this first to inches and then multiply with the resolution.

Like:
11 / 2,54 * 300 = 1300
17 / 2,54 * 300 = 2008
(***I assume your units are cm, if they are already inches; do not divide them by 2,54)

So your image should be rendered at 1300 x 2008 resolution.
Also do not forget to add bleed areas for you image if not yet added.
It's not necessary to render this size with -hd if you have enough RAM.
For most cases, rendering big images with -hd is a faster solution.

Best regards,
Tom

Posted: Mon Aug 22, 2005 1:00 pm
by def4d
i use photoshop to define the rez/size
CTRL+N and enter the dpi first, and then size in cm

For a 10x15 cm, the shop where i print use a Sony station that asks for 200dpi, but i use 300dpi for 40x30cm.

Hope it can help