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How big will a Canon 30D file print?

Forums > General Photography discussion > How big will a Canon 30D file print?

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    rxheard
    20 Jul 2010 - 10:04 PM
    0

    Hi,

    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?

    Thanks
    Rob

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    20 Jul 2010 - 10:04 PM

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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?

    Jester.

    Anthony
    11
    5641 forum posts Scotland17 Constructive Critique Points
    20 Jul 2010 - 10:08 PM
    0

    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.

    Anthony

    rxheard
    20 Jul 2010 - 10:36 PM
    0

    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.

    Rob

    Hergestridge
    20 Jul 2010 - 10:37 PM
    0

    180cm by 80cm thats nearly 6foot by 3foot,I doubt it

    Kev

    Anthony
    11
    5641 forum posts Scotland17 Constructive Critique Points
    20 Jul 2010 - 10:41 PM
    0

    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.

    Anthony

    60"x31½" according to the conversion thing on my mobile.

    MeanGreeny
    20 Jul 2010 - 10:53 PM
    0

    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.

    stevenb
    stevenb (e2 Member)
    9
    230 forum postsstevenb vcard England6 Constructive Critique Points
    20 Jul 2010 - 11:06 PM
    0

    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

    Bill

    MeanGreeny
    20 Jul 2010 - 11:24 PM
    0


    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

    rxheard
    20 Jul 2010 - 11:26 PM
    0

    Thanks.

    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.

    Rob

    AnthonyM
    20 Jul 2010 - 11:57 PM
    0

    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.

    stevenb
    stevenb (e2 Member)
    9
    230 forum postsstevenb vcard England6 Constructive Critique Points
    21 Jul 2010 - 12:36 AM
    0

    Hi Rob

    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.


    Bill

    Last Modified By stevenb at 21 Jul 2010 - 12:39 AM
    Just Jas
    21 Jul 2010 - 1:07 PM
    0

    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.

    rxheard
    24 Jul 2010 - 3:31 PM
    0

    thanks Bill and Just Jas, think I will follow up on both pieces of advice. Rob

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