mdkk #195956
Forum Enthusiast
20x30 is no problem for the Rebel.
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20x30 print from Rebel!
- Thread starter mdkk #195956
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Where did you have that printed? Any tips? I need to print 2 pieces of an exhibition at 20x30.
Thanks!
-Kelvin
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http://kelvinz.deviantart.com/gallery/
Thanks!
-Kelvin
--
http://kelvinz.deviantart.com/gallery/
I'm not sure if it's the dry air or just all of the neon lights, but everyone I know comes back with great pictures. Gosh, I need to go back.
Taylor
Taylor
20x30 is no problem for the Rebel.
mdkk #195956
Forum Enthusiast
i used perfectposters.com which fairly good results.. i used the crop tool to set 20'x30' at 300 ppi (the crop tool works very well for this purpose)
mdkk #195956
Forum Enthusiast
i believe it was around 15-20
ioannis
Veteran Member
there have been posts about this from people that know much more than me on this subject but there is no way you can print 20x30 at 300 ppi from the drebel. I assume you mean dpi which is the printer resolution. Opening the TIFF file of approx 18 MB with photoshop 7 gives 96 ppi. This can be up-rezz'd using interpolation but the original file is ay 96 ppi. By definition on the drebel 1ppi gives a file of 2048x3072 inches. Divide this by 300 and you ll get a 4.533x6.827 inches. Here is a link with the ppi and the size each file can be printed. http://www.tssphoto.com/repro.html
Here is a link with some very interesting explations of printing big from the drebel
http://forums.dpreview.com/forums/read.asp?forum=1031&message=7092206
Here is my experience with printing big from the drebel
http://forums.dpreview.com/forums/read.asp?forum=1031&message=7751993
Yiannis
--
Dignity consists not in possessing honors, but in the consciousness that we deserve them. Aristotle
Here is a link with some very interesting explations of printing big from the drebel
http://forums.dpreview.com/forums/read.asp?forum=1031&message=7092206
Here is my experience with printing big from the drebel
http://forums.dpreview.com/forums/read.asp?forum=1031&message=7751993
Yiannis
--
Dignity consists not in possessing honors, but in the consciousness that we deserve them. Aristotle
Craig H211936
Forum Enthusiast
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umm, you can print a billboard if you really like, just depends how sharp or blurry you like your images. You can lower the dpi, you can pump up the pixels in the image... there's many ways of producing different sized enlargements.
I just picked up a panoramic print from my rebel that measures 1.5m x 0.5m and it looks pretty good from 5-6 feet away. Close inspection shows that the image is blurry (however, NOT pixelated) but you're not going to be looking at a print that big from a few inches away.
In summary, yes it is possible but the quality of the print (upon close inspection) suffers.
http://purplepawn.deviantart.com/gallery/
mdkk #195956
Forum Enthusiast
you can print at 300 ppi for a 20 x 30 inch print if you interpolate, which the crop function in photoshop does very well.. the print i made is pretty sharp even on close inspection.
Max Fun
Senior Member
I will need to make some larger prints for an exhibition as well... did you use PS 7 or CS? I've only got 7, so I'm just wondering if its interpolation is any worse than PS CS?
Cheers!
The Secret to Life is... Calcium!!
http://max-fun.fotopic.net
http://www.pbase.com/supperman
Cheers!
--
The Secret to Life is... Calcium!!
http://max-fun.fotopic.net
http://www.pbase.com/supperman
Greg Deschodt
Member
I have not noticed any difference so far... If you want to interpolate big time, it's probably better to use something like Altamira's Genuine fractals anyway (PS plug in)... I've had good results with that in the past ! Better than PS does natively.
Mjack1957
Leading Member
I do billboards (48 x 14) and banners... most of which are 6' x 4'. All shots are done with the Drebel. The output comes with no pixelation and looks great. So in summation, 20" x 30" should be a piece of cake.
By the way, the billboards and banners are tack sharp.
The ultimate measure of a man is not where he stands during times of comfort and convenience, but how he stands during time of controversy and challenge.
By the way, the billboards and banners are tack sharp.
--
The ultimate measure of a man is not where he stands during times of comfort and convenience, but how he stands during time of controversy and challenge.
ioannis
Veteran Member
It seems I pressed the wrong numbers in my calculator as you correctly pointed out, it was early in the morning 
Now of course you can interpolate and there are many other programs and algorithms that printing labs have that do a better job than the bicubic interpolation of photoshop. do you really want your program to guess 3 times the pixels you already have ? Because that is what interpolation at 300 ppi of a 20x30 image from the drebel would do. When I said now way I just meant that I wouldnt want to not that is int theoretically or practically possible. I doubt that most bothered to read the last link where I explained my experience with printing an 18x27 (increased the pixel frequency to 133 ppi without resampling resulting in a 15.398 x 23.098 image and surrounded it with black color). Of course most would have read Rodney Gold's posts by now and yeah it does depend on the inspection distance - mine at my home wall is usually about 3 feet and if I know where to look at I can see some artifacts that most people miss. If anyone is interested in my printing experience which included some USM it is at http://forums.dpreview.com/forums/read.asp?forum=1031&message=7888912
Yiannis
--
EF-S 18-55mm f/3.5-5.6
EF 50mm f/1.4
Dignity consists not in possessing honors, but in the consciousness that we deserve them. Aristotle
Now of course you can interpolate and there are many other programs and algorithms that printing labs have that do a better job than the bicubic interpolation of photoshop. do you really want your program to guess 3 times the pixels you already have ? Because that is what interpolation at 300 ppi of a 20x30 image from the drebel would do. When I said now way I just meant that I wouldnt want to not that is int theoretically or practically possible. I doubt that most bothered to read the last link where I explained my experience with printing an 18x27 (increased the pixel frequency to 133 ppi without resampling resulting in a 15.398 x 23.098 image and surrounded it with black color). Of course most would have read Rodney Gold's posts by now and yeah it does depend on the inspection distance - mine at my home wall is usually about 3 feet and if I know where to look at I can see some artifacts that most people miss. If anyone is interested in my printing experience which included some USM it is at http://forums.dpreview.com/forums/read.asp?forum=1031&message=7888912 Yiannis
--
EF-S 18-55mm f/3.5-5.6
EF 50mm f/1.4
Dignity consists not in possessing honors, but in the consciousness that we deserve them. Aristotle
mdkk #195956
Forum Enthusiast
i think the next time i print 20 x 30, i'm going to stitch together an image then interpolate then print which i think is going to produce a fantastic super sharp image, although i think without stitching the image is quite good.
Neil Walker
Forum Enthusiast
that you're sitting here telling us that no way, you wouldn't want to do that, the result will suck etc. for theoretical reasons, when we've got a thread full of people saying that they actually have 20"x30" (and larger!) prints taken from the DReb hanging on their walls (I'm one of them) and they all look great.
You can post all the links you want and do math and explain in great detail all about resolution, upsizing and anything else, but if the physical evidence contradicts your conculsions then you have to conclude that either your logic was wrong or one of the assumptions you started from was wrong.
Either that or we're all lying about our prints
Mine, btw, is a 32" wide inkjet print of a crop . And it looks great.
N
http://www.pbase.com/nwalker/favorites
You can post all the links you want and do math and explain in great detail all about resolution, upsizing and anything else, but if the physical evidence contradicts your conculsions then you have to conclude that either your logic was wrong or one of the assumptions you started from was wrong.
Either that or we're all lying about our prints
Mine, btw, is a 32" wide inkjet print of a crop . And it looks great.N
--It seems I pressed the wrong numbers in my calculator as you
correctly pointed out, it was early in the morning
you can interpolate and there are many other programs and
algorithms that printing labs have that do a better job than the
bicubic interpolation of photoshop. do you really want your program
to guess 3 times the pixels you already have ? Because that is what
interpolation at 300 ppi of a 20x30 image from the drebel would do.
When I said now way I just meant that I wouldnt want to not that is
int theoretically or practically possible. I doubt that most
bothered to read the last link where I explained my experience with
printing an 18x27 (increased the pixel frequency to 133 ppi without
resampling resulting in a 15.398 x 23.098 image and surrounded it
with black color). Of course most would have read Rodney Gold's
posts by now and yeah it does depend on the inspection distance -
mine at my home wall is usually about 3 feet and if I know where to
look at I can see some artifacts that most people miss. If anyone
is interested in my printing experience which included some USM it
is at
http://forums.dpreview.com/forums/read.asp?forum=1031&message=7888912
Yiannis
--
EF-S 18-55mm f/3.5-5.6
EF 50mm f/1.4
Dignity consists not in possessing honors, but in the consciousness
that we deserve them. Aristotle
http://www.pbase.com/nwalker/favorites
I have a large format printer at home, and i print the images, what do you guys do for increasing the resolution, ive heard of the fractals, where to get it?
btw, when downloading images using the canon fileviewer, theres a spot where it says dpi is like 96, does increasing this do anything?
sabih
btw, when downloading images using the canon fileviewer, theres a spot where it says dpi is like 96, does increasing this do anything?
sabih
ioannis
Veteran Member
I dont really get where the animosity comes from, I never said that any prints at 20x30 would suck, I quoted Rodney Gold's great post about printing large and I also wrote my experience of printing at 133 ppi image. I also thought I explained what I meant by saying "no way you can print a 20x30 at 300ppi".. I meant that is obviously possible and if people like their prints that is great but it means that more than 2/3 of their pixels are interpolated. If they like their prints it is great, this misunderstanding just comes from my very late night assumption that it was more likely that someone meant 300 dpi printer printouts rather than an up-rezz'd 300 ppi 20x30 printout.
--
Yiannis
--
EF-S 18-55mm f/3.5-5.6
EF 50mm f/1.4
Dignity consists not in possessing honors, but in the consciousness that we deserve them. Aristotle
--
Yiannis
--
EF-S 18-55mm f/3.5-5.6
EF 50mm f/1.4
Dignity consists not in possessing honors, but in the consciousness that we deserve them. Aristotle
You can post all the links you want and do math and explain in
great detail all about resolution, upsizing and anything else, but
if the physical evidence contradicts your conculsions then you have
to conclude that either your logic was wrong or one of the
assumptions you started from was wrong.
Either that or we're all lying about our prints
32" wide inkjet print of a crop . And it looks great.
N
--It seems I pressed the wrong numbers in my calculator as you
correctly pointed out, it was early in the morning
you can interpolate and there are many other programs and
algorithms that printing labs have that do a better job than the
bicubic interpolation of photoshop. do you really want your program
to guess 3 times the pixels you already have ? Because that is what
interpolation at 300 ppi of a 20x30 image from the drebel would do.
When I said now way I just meant that I wouldnt want to not that is
int theoretically or practically possible. I doubt that most
bothered to read the last link where I explained my experience with
printing an 18x27 (increased the pixel frequency to 133 ppi without
resampling resulting in a 15.398 x 23.098 image and surrounded it
with black color). Of course most would have read Rodney Gold's
posts by now and yeah it does depend on the inspection distance -
mine at my home wall is usually about 3 feet and if I know where to
look at I can see some artifacts that most people miss. If anyone
is interested in my printing experience which included some USM it
is at
http://forums.dpreview.com/forums/read.asp?forum=1031&message=7888912
Yiannis
--
EF-S 18-55mm f/3.5-5.6
EF 50mm f/1.4
Dignity consists not in possessing honors, but in the consciousness
that we deserve them. Aristotle
http://www.pbase.com/nwalker/favorites
Bob Tate
Well-known member
I have an Epson 7600, a 300D, and pxl SmartScale from Extensis. Wow, what a combination. Biggest I have printed is 24 X 36 as that is as big as the width the printer will print. Results are amazing. Several people have not believed prints came from a 6MP camera and/or a inkjet printer. I tried some of the other interpolation software and am really happy with SmartScale. They have a 30 day demo. Try it out, good stuff.
Bob
Bob
20x30 is no problem for the Rebel.
mdkk #195956
Forum Enthusiast
no, i've never tried those programs, but i've heard they are pretty good.
20x30 is no problem for the Rebel.
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