2 Replies Latest reply on Nov 4, 2014 11:03 PM by elie-d

# I am shooting in raw and importing in raw to LR4, i have a crop sensor camera a canon 60D. i want to make a canvas print 16 by 20 but it tells me that the resolution is to low how do i boost up the resolution, or can i ??

Can i get the res up or do i need better glass for my crop-sensor camera? i did try 500 dpi but no go.  joezywhales@gmail.com

• ###### 1. Re: I am shooting in raw and importing in raw to LR4, i have a crop sensor camera a canon 60D. i want to make a canvas print 16 by 20 but it tells me that the resolution is to low how do i boost up the resolution, or can i ??

Hi,

It isn't the DPI but the dimensions as a 16x20 print on canvas needs a minimum of 3000x2400 pixels (150DPI) so, if your image is smaller, you will need to resize it.

it will give you an idea of what is needed

But, roughly, you can work it out using:

[print width in inches] * [ppi] = [width in pixels]      -( 16 x 150 = 2400)

[print height in inches] * [ppi] = [height in pixels]    -( 20 x 150 = 3000)

[EDIT] Forgot to mention:

You need to check with your print service provider as to their minimum requirements, for example SnapFish will do 1440x1800 as a 16x20 canvas print.

• ###### 2. Re: I am shooting in raw and importing in raw to LR4, i have a crop sensor camera a canon 60D. i want to make a canvas print 16 by 20 but it tells me that the resolution is to low how do i boost up the resolution, or can i ??

For a 16x20 print the first step is to crop the image to that shape (aspect ratio) which is 4:5. For a full sized 600D image that is 3456 x 4320 pixels. In other words, you crop off 864 pixels from the long side. That gives you a real ppi of 216 which for a canvas print should be more than enough and, as said above, you can crop much more from both sides, for aesthetic reasons, all the way down to 2400 x 3000. This is 40% of the original, but if you want to crop even more (to simulate a longer lens) you will have to resize it up in the Resize function on the Export page, which might entail somewhat of a loss of quality.