So as part of a community orchestra I'm involved with, I've been lumped with getting some prints made in order to sell for fundraising.
We are the oldest youth orchestra in the country, Wooo to us, (it was our 70th birthday last week :P)
Anyway.. its embarrassing, but I haven't really printed much of my digital camera. So, in the name of science I took some shots over to office works (cheap automatic kodak printing place) to see what would happen.
I took these with me...
http://tromboadsclicked.files.wordpress.com/2012/08/chassing-no-buldge-small.jpg http://tromboadsclicked.files.wordpress.com/2012/06/imgp2995.jpg https://tromboadsclicked.files.wordpress.com/2012/05/workysimbw.jpg
They are 1600x1074 (2mp roughly) and I printed them at 12"x8" (cost $3.40 each) and 6x8" ($0.40c each)
And freeking hell they look great!!!! :S
It wasn't until i got home that i realised what i had done, in that I had printed them at around about 125ppi @ 12x8"
The first image was taken at 1600iso f1.8 of all things and I was interested in what the noise would look like. freeking looks fine!! The middle image was used to check colour and well, it wasn't as vivid nor bright as I expected from my pc monitor (suppose my monitor settings are a bit rich)
The last one was to see what the black areas in her jumper (they crappy gradients from jpeg compression ) would turn out like. at 6x4 you cant see them, at 12x8 surprise surprise they are there. But all in all, freek. I wonder just how big I can go with what I understood to be a "small" file resolution before I see some degradation.
Just for some fun, I printed the math for my own sake to understand just how useless Mega Pixels are in regard to physical print size..
2mp Image printed at;
300ppi = 5x3"
200ppi = 8x6"
125ppi = 12x8
100ppi = 16x10"
That really is a bit bonkers. These junk tiny files are sharp and clear enough to print at 125ppi... Looks like I was accidentally pretty close to the quality limit in what I did :P
Man if I knew I was printing at 125ppi... well I wouldn't have. 125ppi should look crap right?? "whimper" And that's only with 2mp!!
Ok so 10mp now..
10mp
300ppi= 12x8"
200ppi= 19.3x12.9"
125ppi= 30x20"
100ppi= 38.7x25.9"
I could print something with my K10d at 30" Bhahahaha
I would not have believed 125ppi would have looked any good until I accidentally printed them :P
Wait let me find a 36mp file to do the same math with..
36mp
300ppi= 20x16"
200ppi= 31x25"
125ppi= 50x40"
100ppi= 62x50"
That's just stupid!
Oh, to work out what your are doing, take the physical image size, ie 3000pixels and divide by the ppi to work out what the physical size will be.. Aka.. 3000pixels / 200ppi = 15" , 3000 / 300ppi = 10" etc etc etc Long story short you don't need a huge file to make big prints!
But yes. 12x8" looks pretty close to A4, and the fact that all you need is 2mp in order to do that. And really how often do you print photos at A4??
Mega Pixels are stupid.
And I'm now going to print heaps of crap off. Its fantastic to have them in the flesh naturally.. I just never believed there would be enough resolution in order to do it any anything greater then 4x5 honestly. I cant believe its taken me so long to do this.
Everyone!!! Go print stuff!!!! you have more resolution you ever need to print anything near enough 30x20" hahaha
Tromboads, a printing convert.
Last edited by tromboads; 09-15-2012 at 06:17 AM.