+ Reply to Thread
Page 1 of 4 123 ... LastLast
Results 1 to 10 of 31
  1. #1
    Senior Member
    tea2085's Avatar

    Would a photo that has

    Horizonal and vertical resolution 240dpi, and width 3648 height 2081 be good enough to blow up to an 18x20 metal print? I have a photo of my granddaughter that I would like to have done by Nations. Thanks, Paul


    › See More: Would a photo that has



  2. #2
    Senior Member
    Challenge Team
    cwgrizz's Avatar

    Re: Would a photo that has

    @tea2085
    I can't really answer that, but doesn't Nations have a chart of suggested sizes to resolutions chart? I think I have seen it there or on one of the photo processing sites.
    Walt

    D750; D7100; D5300;
    18-55mm f/3.5-5.6 G II VR; AF-S VR 70-300mm f/4.5-5.6 G IF-ED; Tokina 11-16mm f2.8 (IF) DX II; 200-500mm f5.6E ED VR; AF-S VR 24-120mm f/4G ED; TC14E II



  3. #3
    Senior Member
    Horoscope Fish's Avatar

    Re: Would a photo that has

    Quote Originally Posted by tea2085 View Post
    Horizonal and vertical resolution 240dpi, and width 3648 height 2081 be good enough to blow up to an 18x20 metal print? I have a photo of my granddaughter that I would like to have done by Nations. Thanks, Paul
    Those files should be fine; I've done 16x20's with similar size/res file with excellent results.
    Thanks/Like Lawrence Thanks/liked this post
     
    ~ Paul
    ....
    ....
    Primary Weaponolgy :: D750 (OLPF Removed), MB-D10; Sigma 50mm f/1.4 Art, Sigma 35mm f/1.4 Art, Tamron 70-200mm f/2.8 Di VC USD G2, Tamron 24-70mm f/2.8 Di VC USD,
    Nikon 85mm f/1.8G; Yongnuo 568EX, Nikon SB-700; Manfrotto X055PROB, 3-Legged Thing Airhed II... All Stuffed into a Manfrotto Pro Backpack 50
    ....
    ....
    ● ▬▬▬▬▬▬▬ ๑۩۩๑ ▬▬▬▬▬▬▬ ●

  4. #4
    Senior Member
    WayneF's Avatar

    Re: Would a photo that has

    The current 240 dpi is just a number stored in the file, which has no meaning yet. A new dpi number will be computed for the new paper dimensions.

    There are two difficulties. Your 3648x2081 pixel image is very nearly 16:9 wide screen format, but you want a 20x18 print, which is more nearly (almost) a square shape. So to fit the paper SHAPE, you have to crop off quite a bit of the ends of the image, to be 2312x2081, which is then the same SHAPE as the 20x18 paper. Then only 4.8 megapixels, and the 2312 pixels / 20 inches will print at only 115 dpi. Probably will be OK, but it will be best viewed from a slight distance in the room, not up real close. A 10x8 inch print would print at 2x or 230 dpi, which is photo quality. You might want to print both sizes.

    The image possibly may not allow that much cropping, not without cutting off a head or something. If you wanted to cut a mask for the frame, you can avoid cropping by printing on 20x18 paper, but call them with special instructions to fill the 20 inch dimension, and don't fill the 18 inch dimension (allow blank white edges, unprinted paper... print the full image area). This original shape will print 20x11.4 inches at 182 dpi. Then trim it and frame it with a mask cut to fit the image.
    Last edited by WayneF; 11-28-2015 at 09:45 PM.
    Thanks/Like Rick M Thanks/liked this post
    Best Answers cwgrizz voted best answer for this post
     
    Wayne

    Flash and Camera Fundamentals We Should Know

  5. #5
    Senior Member
    tea2085's Avatar

    Re: Would a photo that has

    I meant 16x20,Wayne, would that work? Thanks guys BTW have any of you ever ordered metal prints- are they nice? Paul

  6. #6
    Senior Member
    WayneF's Avatar

    Re: Would a photo that has

    Well, your 3648x2081 pixels are aspect ratio of 1.75:1 (the ratio of the two sides)

    20x16 is aspect ratio 20/16 = 1.25 :1, so the 20x16 degree of mismatch is slightly different, but they are still quite different shapes. The pixels still print 20x11.4 inches.


    Making up other numbers for example, but the problem is much like you have a 6x10 image but you want to print it on 6x5 paper. They are simply not the same shape, a long and thin image, but paper that is more nearly square. You can either crop it to be the paper shape, or you can print the full image to not fill all of the paper.
    Last edited by WayneF; 11-28-2015 at 10:48 PM.

  7. #7
    Senior Member
    tea2085's Avatar

    Re: Would a photo that has

    I went to Nations site as grzz suggested. I,m now thinking 16x24 which would give me an aspect ratio of 8x12 and includes the tiny hands (most of the other aspect ratios cut half of each hand). It will cost me a little more but IT'S CHRISTMAS! How does that sound Wayne? I'm terrible with numbers. Thanks to all the guys for the fine help. Paul

  8. #8
    Senior Member
    WayneF's Avatar

    Re: Would a photo that has

    I have not seen your picture, so no clue what crop works for it. See Image Resize - Cropping, Resampling, Scaling for a chart of common aspect ratios. The problem is that you said your image was 3648x2081, which is 1.75:1. That is very near 16:9, which camcorders shoot, and is the bottom entry in that chart, an image that is long and thin compared to more regular images.
    8x12 is called 2:3, which is 1.5:1, and is what DSLR and 35mm film cameras shoot. This is a longer image than say 16:20, which is 5:4, or 1.25:1.
    Compact cameras shoot 5:4, which is also 1.25:1, which is somewhat more square.

    The problem is the image has to fit the papers shape. Different size papers are different shapes. It is a common feature in many photo editors to be able to declare a crop shape like 4:5 or 2:3, and then any crop box you can draw will be that shape.

    If the image subject is tall and thin, and just won't fit regular paper sizes, I'd suggest printing it for the Full image, but with unused white space on the paper. Like 20x11.4 printed on 20x16 paper. Print shops can do that, if you make it clear what you want, and if they can be bothered to turn off the automation to do it..
    Then you (or a framing shop) can cut a 1:75:1 hole in a 16x20 white matt, and put it in a 16x20 frame, with your 1:75 picture behind it. The printed image should not be 20 inches though, it should be at least a couple inches less than the frame, in order to have the white matt all around it. Should look fine and natural. This is what framing shops do.
    Last edited by WayneF; 11-29-2015 at 12:24 AM.

  9. #9
    Staff
    Super Mod
    Don Kuykendall's Avatar

    Re: Would a photo that has

    What software are you using for post processing? Most of them will let you set the crop size as in 16x20 or whatever. Not saying crop it but it will at least show you what would get cropped. You can never tell, you might like the crop. Also depending on the post processing software you can upsize the photo a little bit and gain a little bit of breathing room.

    In lightroom read this How to Resize Photos in Lightroom

    In Photoshop read this https://forums.adobe.com/thread/1351683

    Many people suggest this Upsizing an Image with Minimal Quality Loss | PhotoLesa.com

    These might help
    Last edited by Don Kuykendall; 11-29-2015 at 12:25 AM.
    Thanks/Like singlerosa, Whiskeyman Thanks/liked this post
     

    ================================================== ============================
    D750***D7100***24-120 f/4 ***70-300***Tamron 150-600***Tokina 16-28 f2.8***50mm f/1.8***Photoshop/Lightroom CC

  10. #10
    Senior Member
    tea2085's Avatar

    Re: Would a photo that has

    I did go to Lightroom crop and custom set the aspect ratio to 16x24 and after looking at it I saved and it seems the perfect ratio. BUT, now I have another problem- as I uploaded my photo to nations, I received a message that the pic was poor resolution and may have poor prints. The file info said it was 3648x2081 in size with a horizontal and vertical resolution @240/240. What am I missing? Paul





Quick Reply Quick Reply

If you are already a member, please login above before posting.

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •