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printing help

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JulesAmeel PRO 11:11pm, 19 November 2008
hey guys, i need your help,

Im going to print some pretty large pics, they're 18x12
Im going through Mpix and I was wondering a few things,
what resolution should the files be for something that big
and if people have had experience with these guys.
Also just any printing tips in general

Thanks!
MOD
maxcaven 10 years ago
I printed up a 10x30 from a crop shot with my d40. I used that blow up plugin. Other than that 300dpi is the only other thing I know you should have your images at.
admin
HBRstudios 10 years ago
Printed at Mpix, you can get away with 180 ppi (and even lower, if you push it a bit) -- tests we have done have shown no difference between 180ppi and higher resolutions.
noxious kettle [deleted] 10 years ago
240-300dpi-ish i think is the standard. i made a 17x22 from a 35mm negative scanned with a cheap scanner, so you don't need much. what i've done is in photoshop uncheck "resample image," enter in 72 as resolution or whatever it is. it will give you some really large dimensions, then i just enter in "18" in height or width (largest dimension of whatever image your working with), and it changes the dpi accordingly. there's probably better ways, but the prints look good.

alex
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JulesAmeel PRO 10 years ago
where should i go if i want a super high resolution print then? because isnt the difference from 180ppi and 300ppi visible to the naked eye,
MOD
Drew C 10 years ago
well, jules... the d200 OR d700 cant do a native 12x18 300dpi print. it simply doesnt have the resolution. so you'll have to up-rez it. which (in-reason) can be indistinguishable. there are several methods for up-rezing, but it seems that enlarging by 10% several times until you get the desired file size is a good way of doing it.

i've got a nice looking 20x30 from a d70 that i up-rezzed.

and yeah, 150 is skimping, 180 is good enough for me, and between 240 and 300. i certainly cant tell the dif.
MOD
JulesAmeel PRO 10 years ago
k cool, Then I might not have an issue cuz they're composite images so it's going to be 3 different pics filling up the frame, but can you go into detail about those resizing methods?
admin
Shawn Thompson - Lake Superior Photographer Posted 10 years ago. Edited by Shawn Thompson - Lake Superior Photographer (admin) 10 years ago
I wouldn't suggest upsizing them yourself. Printers spend thousands on RIP software that is made to do that for their equipment. Let the pros handle it.

I print 20x30's regularly and have from my 6mp, 10mp and 14mp DSLR's.

I believe my files are natively 240dpi and that is how I send them.
noxious kettle [deleted] Posted 10 years ago. Edited by noxious kettle (member) 10 years ago
i guess if they do something like that, possibly go for it. if they are like any other photo finishing place, most of the time the order is placed online, and printed straight from the computer. i'm sure they have a computer program that does all this, and it works fine. but if its anything like lab scans of negatives or prints, i'd rather do it myself.

www.photoshoptalent.com/photoshop-tutorials/upsizing-acti...

found this one on a whim also. this information will be pretty useful to me as well.

alex
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maxcaven 10 years ago
Wow, I had no idea about the 10 percent thing. That's nice to know.
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