Max print size from a 12MP 5Dc

Hi guys,

I want to make a print size of 24"x36" from my 5Dc or 7D. When I go into Image Size in Photoshop, the 5Dc shows 14"x9" and 7D show 21"x14" from Jpeg files. So does it make a difference in IQ to resize the RAW file to output to that resolution before converting it jpeg? Thanks

ontopofm wrote in post #11469871
So does it make a difference in IQ to resize the RAW file to output to that resolution before converting it jpeg? Thanks

You don't need to resize the file, just alter the ppi figure to suit the size of the print. It may work out a bit under the 'ideal' of 300ppi but as the viewing distance will be greater, you can get away with less ppi.

If you take the 4368 x 2912 pixels of the 5DC and blow it up from 24x36mm to 24x36", that is a 25.4x magnification of the sensor image, resulting in 114.6 pixels per inch.

Some commercial printers insist on a file which provides 300 dpi, so you would need to resize the pixel count by at least 3x, to meet their minimum standards. Others would simply print what you provided and you then suffer the quality issues of insufficient pixel count.

To echo and elaborate a bit, you want to check with your print provider as to whether they prefer the image be sized and resampled to say 300 ppi, if they require a ppi figure in the Exif, or whether they have a good print resampling process and can accept your files "as is". Ones who have good resampling can often apply sharpening appropriat to the print size.

In other words, yes people get good prints from the 5DC as well as the 7D at that size. Viewed close, you would see greater fine detail in the higher resolution image, sure, but the 5DC image will, given a high quality original image and proper "output sharpening" deliver the goods. Whether you do the resizing/resampling for that size at a particular ppi or whether it is done at the lab is up to you and the lab.

I have 12x16 prints framed and hanging on my walls from 4 and 6MP cameras with which I am quite happy.

24 x 36 from a 5D should not be a problem. Of couse, the better the original, the better the final print. If you start with a razor sharp image, you should end up with a very good print.

Subject matter is important. If it's a landscape with lots of distant small detail, you may not be as pleased.

I have printed up to 30x40 from a 20D image so the 5D should be a breeze. I will echo the other sentiments here and speak to your lab on what they want.

If you are hell bent on enlarging the image download a trial version of Genuine Fractals. I have that as part of a plug in suite and it really does a fantastic job of enlarging images.

the lab only requires 250 ppi and ask for the file not be resized when sending in. But they do suggest the file to be viewed at 100% with the intended print size as this is a representation of how the file will print. I did resize the image and could not tell the difference at 100%. I'll give it a try but the print is expensive. Thanks fellows

https://photography-on-the.net …/showthread.php​?p=3740438

I have a 50" print from an ISO800 shot from a 5D classic. It looks awesome, even close up. Some people obsess over the numbers too much.

tim wrote in post #11480798
https://photography-on-the.net …/showthread.php​?p=3740438

I have a 50" print from an ISO800 shot from a 5D classic. It looks awesome, even close up. Some people obsess over the numbers too much.

A 3/4 length self portrait, Tim ?

Wilt wrote in post #11480887
A 3/4 length self portrait, Tim ?

No this is a wedding photo, but I also have an almost life sized cardboard cutout of myself, that image was taken with a 5D classic as well. It was a Christmas present for someone. The cutout's 5 foot tall as when I printed my full height I couldn't get a backing board wide enough.

I think the largest I have done from my 5d was 18x24, and it came out excellent. I would increase the ppi with whatever program you feel does the best job, then use some unsharp mask to suit your liking.

I've printed a couple of shots from my 1DmkII at 24x36 and am very happy with the results. 5Dc should be no problem provided the image is sharp and clean to begin with.