All Forum Comments
Comment by Pentaxophile posted on DPI woes, how do I sort this please? at 13/12/2013 - 11:24
. . . Not that the dpi actually affects much.
Comment by Pentaxophile posted on DPI woes, how do I sort this please? at 13/12/2013 - 11:07
Lol.
What is the image dimensions? For example in the example below, it's 4928 x 3264 - that is the original image size and will be plenty for a really large print (irrespective of the essentially meaningless 'dpi' figure - lol)
Comment by Pentaxophile posted on DPI woes, how do I sort this please? at 13/12/2013 - 11:06
Comment by Pentaxophile posted on DPI woes, how do I sort this please? at 11/12/2013 - 21:02
Comment by Pentaxophile posted on DPI woes, how do I sort this please? at 11/12/2013 - 20:41
You want to give your printers the original size images, which should be 4928 pixels on the longest side assuming you haven't cropped them. Find out which bit of software is resizing your images and change the settings, or find better software.
Photoshop CS2 is available free online.
Comment by Pentaxophile posted on DPI woes, how do I sort this please? at 11/12/2013 - 19:10
I only have Pentax batteries i will feel very smug indeed.
Comment by Pentaxophile posted on Hilarious..... at 10/12/2013 - 15:22
It's very nice getting that shallow dof 'pop' and also the 'original' field of view these lenses were designed for.
It has to be said though - using mirrorless is not as satisfying and natural to me as picking up my K30, crop sensor notwithstanding! As much as I like tinkering with manual glass, I also like AF, and the ability to use modern zooms.
I might feel differently with the A7 as it has a good EVF, but somehow I find it hard to imagine spending that amount of cash on a camera for manily using with manual lenses, and which doesn't have an OVF.
Comment by Pentaxophile posted on Moving to full frame at 10/12/2013 - 07:55
Comment by Pentaxophile posted on Moving to full frame at 10/12/2013 - 06:31
The thing about extreme weather is that, secretly, we love it!
I think it makes life an adventure.
Comment by Pentaxophile posted on Another pointless thread at 06/12/2013 - 13:38
If the JPG file was 156kB then it probably was a tiny image!
Sounds like your editing software has produced an emailable image rather than a printable image
Pixel dimensions is the criteria for printing.
Regarding DPI (or perhaps more accurately PPI) there are two ways it is used:
1) Where the print company tells you what DPI your image is. For this, they have calculated the DPI value with the formula: pixels ÷ width-in-inches.
For example, if you have given them a full K-30 image (4928 pixels wide) and you want it printed 10 inches wide, then the DPI = 4928 ÷ 10 = 492 DPI
In this scenario they are giving you an indicator of how detailed the printed image will look. You'll need at least 300DPI for a high quality print (so a K-30 image at 4928 can be printed up to 16 inches across - 4928 ÷ 300 = 16.4")
They will ignore the embedded EXIF value for DPI (i.e. what was set in Photoshop and only use the pixel dimensions)
2) Where the DPI figure is embedded in the EXIF information of the JPG.
This is largely ignored
But if you are doing publishing this value is taken into account when placing an image into DTP pages. For example, InDesign will automatically scale the imported image based on the DPI embedded value and the pixel dimensions. The width will start off as width-in-inches = pixels ÷ DPI-value-in-EXIF
Of course, it can be scaled from there. But setting a 'correct' DPI is helpful not to annoy the publisher (Imaging them placing a 4928 pixel image that was indicated at 72dpi - they'd end up with a 68 inch wide image that they would have to rescale! It gets really, really irritating when you have tens of images to place on a prepress document :roll
But again, for Louise's issue - this is scenario 1.
Matt