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1. Re: Increasing document size or resolution first?
MTSTUNER Apr 13, 2011 10:10 PM (in response to margieannejulie)You won't be able to increase the height to 14
and to a resolution of 300 without checking the resample image box.
MTSTUNER
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2. Re: Increasing document size or resolution first?
c.pfaffenbichler Apr 14, 2011 2:10 AM (in response to margieannejulie)Of course I uncheck resample image, then which one do I change first, resolution or height, and why?
If you don’t resample it is irrelevant anyway.
Why do you need to increase resolution?
Do you process your images with Camera RAW? If so you could set them to 300ppi right away.
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3. Re: Increasing document size or resolution first?
margieannejulie Apr 14, 2011 10:58 AM (in response to c.pfaffenbichler)Having to make a print of that size, the people who will display the pictures requested a resolution of 300 dpi. If I change it in raw, I still have to resample when I open it in PS?
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4. Re: Increasing document size or resolution first?
jveigel Apr 14, 2011 5:15 PM (in response to margieannejulie)Yeah I don't think it matters which one you change first, if you're not resampling. But from what it sounds like you're doing you want to uncheck resample then change the document size. Then recheck resample and then change the DPI so it up reses it. Cause I mean you could change the DPI without resampling it, but thats just going to be the setting it thinks it's at and not really 300dpi, which I would think could cause issues later on. I guess I'm not an expert on this particular function but it seems like that should help.
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5. Re: Increasing document size or resolution first?
c.pfaffenbichler Apr 14, 2011 11:58 PM (in response to margieannejulie)If I change it in raw, I still have to resample when I open it in PS?
If you are determined to deliver them at 14inches with 300ppi you will still have to upsample, but you can put the resolution out of your mind when you start with 300ppi.
I think the Camera RAW default resolution is 240ppi, but one can change that resolution and the setting should stick if I’m not mistaken.
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6. Re: Increasing document size or resolution first?
MTSTUNER Apr 15, 2011 1:08 AM (in response to margieannejulie)Also if your working on a camera raw file, you can upsize in the camera
raw dialog, which may produce better results than resampling in photoshop.
Click on the workflow options at the bottom of the camera raw dialog and set
the resolution and pick a bigger size, Then in photoshop check the size using
the image size dialog.
MTSTUNER
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7. Re: Increasing document size or resolution first?
margieannejulie Apr 15, 2011 2:14 PM (in response to MTSTUNER)Thanks everybody, just one more questions while I am here, my 5d MarkII is only giving me 8 bits in raw, of which I am surprised.
If I change it to 16 bits in raw, will it be a real 16 bits, or just typed in, and would it be worth it, considering that I am making prints, I mean,
would it be useful, like showing?
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8. Re: Increasing document size or resolution first?
margieannejulie Apr 15, 2011 2:16 PM (in response to c.pfaffenbichler)Excuse my bad english but what do you mean by you can put the resolution out of your mind when you start with 300?
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9. Re: Increasing document size or resolution first?
MTSTUNER Apr 15, 2011 4:16 PM (in response to margieannejulie)I don't think camera raw files have a set bits/channel as far as the setting in
adobe camera raw. Setting for 8 bits or 16 bits really depends on what you'll do with the
photo after camera raw. If you output to 16 bits/channel in
the camera raw dialog, you retain more data than 8 bits/channel, which may
give better results when doing other things to the photo in photoshop and one
can always change to 8 bits/channel in photoshop proper.
Generally it's best to do as much processing in 16 bits/channel with camera raw files
and then switch the bit depth according to the output needs. I know that macs are able
to send 16 bits\channel data to the printer, but few home type printers are actually able
to use the extra data.
As far as being a true 16 bits/channel file, probably not, since most affordable slr
digital cameras output in the 12 to 14 bits/channel range, but still using 16 bits/channel
retains the most data possible.
MTSTUNER
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10. Re: Increasing document size or resolution first?
margieannejulie Apr 17, 2011 11:49 AM (in response to MTSTUNER)That actually makes a lot of sense, thanks again
Anne
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11. Re: Increasing document size or resolution first?
M Blackburn Apr 23, 2011 12:22 PM (in response to MTSTUNER)I am trying to understand a bit about Camera Raw. I Hope you can answer a few questions for me bearing in mind that I am not referring to Raw files, but just JPEGs opened in Camera Raw.
> upsize in camera raw may produce better results than resampling in photoshop
I can see how upsizing in Camera Raw may produce better results than Photoshop because Camera Raw limits its resizing to specific sizes based on camera formats. But does Camera Raw do a better job than Photoshop when the same image is changed to the same pixel dimensions?
A corollary to this is that if none of the available sizes in Camera Raw are what you need in the final output, would it not always be better to resample in Photoshop?
I thought changes in Camera Raw were generally non destructive, but is that the case for image size? Subsequent opening of files that have had their image size changed will show more size options, but will also show the new size as actual (i.e. the size without either a plus or minus sign). I also find that if the size is increased the original size can become unavailable later. This seems to indicate that changing the size resamples destructively each time.
But I notice that images do not always open to the “actual” size. My point and shoot camera is 7.1 MP, and Camera Raw opens the images as 3.1 MP (–). It seems unlikely that changing the size to 7.1 MP (which is not indicated by either + or –) resamples the image, especially in view of the fact that the image opens in Photoshop reflecting the pixel dimensions that correspond to the 7.1 MP size.
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12. Re: Increasing document size or resolution first?
Scott Falkner Apr 23, 2011 2:31 PM (in response to jveigel)I will asume the height is 16 inches and you want that reduced to 14 inches. If you set Resample to none, then change the height to 14 inches your resolution will increase to 274 ppi. This should be acceptable. Whenever I hear people say they require 300 ppi I know I am talking to CSRs or salespeople who are just reading a sheet of paper they only pretend to understand. for high resolution printing 274 ppi will be acceptable. You will not increase the quality of your output by resampling to 300 ppi.






