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I've had an enquiry wanting to know cost of a print 180cmx80cm. I use a Canon 30D which has an 8mp sensor - so would I be able to enlarge the file to produce a print of this size to a client acceptable standard?
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To answer your question, I'm afraid I have no idea but it leads me to ask; where would you get this print, erm, printed?
you should be fine. I have printed 30 inch by 20 inch images from my old Canon 300D without any problem, and they looked fabulous.
Thanks Anthony - but how big is the sensor on the 300D? We're talking about a print of 72" here.
Jester - ermm, don't know yet, will need to ask around.
180cm by 80cm thats nearly 6foot by 3foot,I doubt it
oops, sorry, my maths let me down a bit here. The 300d was 6 mp, I miscalculated the size your thinking of having done. Sorry.
60"x31½" according to the conversion thing on my mobile.
As long as you view the 180cm x 80cm print from the appropriate distance i.e. several yards away, it should look pretty much the same as a 6" x 4" print up close.
Open the image in Photoshop
Click on the Image tab & from the drop down select Image Size
When the box opens change the resolution to 300 dpi
300 dpi is the normal resolution for a top quailty print.
Now look in this image sizing box for the size dimension providing you haven't changed this this is the recommend size for printing
Hope this helps
Quote: 300 dpi is the normal resolution for a top quailty print.
Thats might be true for a Canon printer but the native print resolution for most Epsons is 240 dpi
Bill. The question is how big can it be taken by enlarging the file beyond the "recommended" out of the camera size. I'm just not sure there is enough in the file megapixel size to print a 6ft image without major loss of quality. Naturally I don't want to discover this is the situation after the event.
There is no single simple answer.
How far away will your client be standing? For example, billboards are incredibly poor resolution, but you do not stand next to them.
If you print over 20 inches, are you still intending for people to stand less than arm's length away? Probably not.
So 300dpi resolution is not necessarily as critical.
There is more to printing than direct pixel per dpi correlation.
On a 8 million pixel camera I think you may struggle to get a 6 ft image but I honestly don't know.
Last year I went to Focus on Imaging and took a Canon 40D , 10 million pixel camera , I got one of the pinter companies to print it up to A2 size . It came out ok and still very sharp.
why don't you ring them and ask for advice re sizing.
Print off a crop of your picture at A4 size at the magnification you would need for your 180cm print and see what it looks like i.e. at a same size slice of the full sized image.
thanks Bill and Just Jas, think I will follow up on both pieces of advice. Rob
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