What's all this about 1.333 and 1.25 aspect ratios? 4x6 is 1.5.

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David Fontaine wrote:
> What's all this about 1.333 and 1.25 aspect ratios? 4x6 is 1.5.

But 800/600 is 1.33333... so you have to change either the resolution or the
aspect you want to render at for it to print correctly.

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Lance.
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On Tue, 15 Feb 2000 18:09:35 -0600, "Bob Hughes"
<omn### [at] hotmailcom?subject=PoV-News:> wrote:

>Hope you realize that 1280x1024 is a 1.25:1 aspect ratio and set the camera to
>that instead of using the default 1.333:1.
>
>Bob
>
>"Mike Weber" <mik### [at] pyxiscom> wrote in message
>news:38a9d4d2@news.povray.org...
>| I took two of my renderings and re-rendered them at 1280x1024 and sent them
>| (including a bunch of images from my digital camera) to http://www.ofoto.com
>

I think you both might be forgetting something. If you want the render
to totally  fill a 4x6 print without cropping, you don't want a
1280x1024 image anyway. 4x6 prints have an aspect ratio of 1.5 You
probably want to create a rendering with a 1.5 aspect ratio in the
first place.

When I create images for my local photo lab to print as 4x6 prints on
photo paper, I create them as 1800x 1200 images. The lab is using a
Konica machine that is optimized for 300dpi input. I actually spoke to
a Konica rep personally get the 300 dpi recommendation, because the
local lab had no idea what to recommend. Other brands and models of
printers will have different requirements. It's always a good idea to
ask your lab what the best resolution is, and if they don't seem to
know, then do what I did. Call the people that manufactured their
equipment, and ask them.    :)

later,
Glen Berry

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Good to know, I hadn't thought of the 6" by 4" print size, I'm usually printing
my own stuff at home in landscape onto full page without thinking much about the
dimensions on the 8.5" by 11" paper; meaning I don't do anything but render at
typical screen aspect ratio and just print as large as will fit onto the page.

Bob

"Glen Berry" <7no### [at] ezwvcom> wrote in message
news:ADuuOOYvMbWryLFAoQPcu2g37gKJ@4ax.com...
| On Tue, 15 Feb 2000 18:09:35 -0600, "Bob Hughes"
| <omn### [at] hotmailcom?subject=PoV-News:> wrote:
|
| >Hope you realize that 1280x1024 is a 1.25:1 aspect ratio and set the camera
to
| >that instead of using the default 1.333:1.
| >
| >Bob
| >
| >"Mike Weber" <mik### [at] pyxiscom> wrote in message
| >news:38a9d4d2@news.povray.org...
| >| I took two of my renderings and re-rendered them at 1280x1024 and sent them
| >| (including a bunch of images from my digital camera) to
http://www.ofoto.com
| >
|
| I think you both might be forgetting something. If you want the render
| to totally  fill a 4x6 print without cropping, you don't want a
| 1280x1024 image anyway. 4x6 prints have an aspect ratio of 1.5 You
| probably want to create a rendering with a 1.5 aspect ratio in the
| first place.
|
| When I create images for my local photo lab to print as 4x6 prints on
| photo paper, I create them as 1800x 1200 images. The lab is using a
| Konica machine that is optimized for 300dpi input. I actually spoke to
| a Konica rep personally get the 300 dpi recommendation, because the
| local lab had no idea what to recommend. Other brands and models of
| printers will have different requirements. It's always a good idea to
| ask your lab what the best resolution is, and if they don't seem to
| know, then do what I did. Call the people that manufactured their
| equipment, and ask them.    :)
|
| later,
| Glen Berry

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Lance Birch wrote:

> David Fontaine wrote:
> > What's all this about 1.333 and 1.25 aspect ratios? 4x6 is 1.5.
>
> But 800/600 is 1.33333... so you have to change either the resolution or the
> aspect you want to render at for it to print correctly.

Yes, of course.
See, Nieminen Juha confused me with that talk about strecthing a 1.25 to a 1.333
and having it look right; if you rendered at 1.25 and wanted it printed at 1.5,
1.333 would never come into play anyway.

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___     ______________________________________________________
 | \     |_                 <dav### [at] faricynet> <ICQ 55354965>
 |_/avid |ontaine               http://www.faricy.net/~davidf/

"Sitting on a cornflake, waiting for the van to come" -Beatles

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David Fontaine <dav### [at] faricynet> wrote:
: See, Nieminen Juha confused me

  Cool! ;)

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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