Photoshop :: CS6 Shift-Circle With Aspect Ratio Correction
May 21, 2012
In PhotoShop CS 4 & 5.5, with a NTSC D1, 720x 486 document, a Pixel Aspect Ratio of D1.DV NTSC (0.91), and ellipse options set to unconstrained, with Aspect Ratio Correction Turned on, to draw a perfect Circle, you could hold Shift-option-cmd and you'd get a perfect Circle.
In PhotoShop CS6, the circle is stretched to the top and bottom when I do a shift-Drag to draw a circle in a non-square Pixel document with Aspect Ratio Correction turned off.
So, at this point, In a Non-Square Pixel document, There's no way to draw a perfect circle. What's changed between 5.5 and 6?? Is there a Preference somewhere that I've missed?
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Jan 8, 2013
I opened a picture from a friends Canon EOS 5D Mark II camera and got this warning: Pixel aspect ratio correction is for preview purposes only. Turn it off for maximum image quality.
My questions: is this maximum quality of the warning referring for printing or just for viewing the file on screen and secondly what could have caused it in the first place. My friend has never seen this dialog box on his Photoshop at home and does not know of any camera setting that would have caused this.
Photoshop CS6 on Windows 7 64 bits
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Oct 29, 2007
When I bring them into photoshop I get the pop up that says "Pixel aspect ratio correction is for preview purposes only. Turn it off for maximum image quality."
I know how to to turn that off. BUT, is there a way to change my settings to turn OFF the pixel aspect ratio so it won't come up anymore?
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Sep 17, 2006
I have just started to get a prompt when I open some images I have downloaded from the stock exchange website.
"pixel aspect ratio correction is for preview purposes only. turn it off for maximum image quality"
I have never had this problem before and now it is doing it on some pics and some it isnt.
It is doing it on pics that I have worked on from my digital camera when it never did it the first time I worked on it.
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Dec 10, 2005
a setting enabled it so the "pixel aspect ratio correction" setting is turned on and I can't seem to turn it off. It basically scales the image when I open it up. I can turn it off so each image that I open in photoshop is reset back to normal, but I can't figure out how to take off the setting completely so it doesn't scale it at all.
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Apr 4, 2008
Some option in Photoshop is resizing the .tif files I'm trying to load, due to their enormity in size. Whenever I load the file it displays a window saying, "Pixel aspect ratio correction is for preview purposes only. Turn it off for maximum range quality."
how do I turn it off?
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Mar 4, 2008
DVD menu where I went File > New > NTSC DV Wide to create the document, as per the video house's instructions. Now everytime I open ANY file, old or new, a warning pops up to let me know Pixel Aspect Ration Correction is on and to turn it off if I don't want it. This means dozens of times per day, I have to go View > Pixel Aspect Ration Correction just to turn it off.
I can't figure out how to turn this crap off permanently. Why the hell would it default to ON just because I used it once?
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Mar 19, 2012
I created an illustration in Painter 8 and I would like to bring that image into Photoshop. I saved the Painter file as a jpeg, but when I try to open it in Photoshop, I get the message, "pixel aspect correction is for preview purposes only. turn it off for maximum image quality." The image comes up as a sliver of color, totally unrecognizable. So, I go to View > Pixel Aspect Ratio Correction and uncheck and the image is corrected. It looks fine now.
I have an existing psd file that I've been working on for a while which is my working portfolio. I tried to take my newly corrected image and drag it (or copy it) into my portfolio file. At this point, I get the same error message. But this time, there is no option to turn off "Pixel Aspect Ratio Correction" because it's greyed out.
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May 19, 2009
Using PS CS4 WinXP Pro SP3 platformI would like to create a faux panoramic photo from a traditional photo. I know that the panoramic aspect ratio is 2:1 or greater. My image was taken in the standard 3:2 aspect ratio. I have plenty of dead image area both above and below.
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Sep 26, 2012
I am using ps cs5... I have to work pixel by pixel thts why i have to work in grid. I am assuming as ur using CS5....
ctrl+o(open any picture file )>
than go to VIEW>SHOW>GRID
zoom pic until it stops zooming..
than go to VIEW>PIXEL ASPECT RATIO>COUSTOM ASPECT RATIO>give a FACTOR of 0.75(it'll shrink the pic.)
take pencil tool(chose any colour) and try wo work in a single pixel...... it never take 1 pixel ...i have to work in a single pixel.
any hack / scripting / proper way/ to let me work in a single pixel.
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Aug 25, 2012
In CS4: For Canon, currently 4:3, how can I change aspect ratio to whatever in order to get 5 x 7 images?
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May 21, 2008
Photoshop CS2-
Why do I have to adjust pixel aspect ratio when opening a tiff file?
This didn't happen in photoshop 7.
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Jul 11, 2007
I just joined and I'm a complete newbie at Photoshop, though I'm fairly interested in it.
I was wondering if it's possible to change the aspect ratio of a 5:4 (1600x1200) image to 16:10 (1680x1050) without stretching the image or contorting it.
I've tried resizing, but all that does is screw up the image and/or make it look all crappy.
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Sep 23, 2006
i've got about 200 photographs i'll need to crop manually, and the finished files need to be in a 3x4 aspect ratio.
how would i make a resizable selection box that maintains this aspect ratio that i can use over and over again?
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Feb 26, 2008
Since installing Photoshop CS2, whenever I open a file (.tiff), PS selects the incorrect aspect ratio (a custom ratio of 0.5, when in fact the file is meant to have an aspect ratio of 1.0).
1. Is the aspect ratio stored in the file as an attribute, or does Photoshop guess the ratio from some other attribute?
2. Can I force PS to open all files with an aspect ratio of 1.0?
In older versions of Photoshop the files opened correctly. When I open the .tiff in a text editor, I can't find any attribute named 'aspect ratio' or somesuch.
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Nov 7, 2008
I'm running Photoshop CS2 (9) on XP pro. I have a bunch of tiffs made from scans of 36" x 48" documents. They all are coming in with a strange distortion. A box pops up: "Pixel aspect ration correction is for preview purposes only. Turn it off for maximum image quality." I know how to turn it off, but I cannot afford the time to save 144 huge files. Can this default be reset? To reset this default to "square", I have tried everything short of deleting pixel aspect ratios. I never want anything but "square". What will it hurt to delete pixel aspect ratios?
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Jan 15, 2004
New digi-camcorder records at 16:9 (I have a w/s TV. I need to incorporate many stills. All stills edited using p'shop 6. With TV aspect ratio set to 16:9 movies are great, stills are ssttrreettcchheedd. I need to change the aspect ratio of my stills by a constant factor so they are 'squeezed' when viewed at 4:3 (ie on my computer monitor) but expanded to the correct ratio on the TV.
I use a digi still camera for pics (and no, it doesn't have a 16:9 option and no, I can't afford one that does).
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Mar 8, 2007
how to select aspect ratio to crop in CS2.
I can only crop using size but not ratio like in ACR.
In Element I have no problem.
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Mar 19, 2009
I'm using Photoshop since the Photoshop CS versions. However I'm quite unpleased to see the following since I installed Photoshop CS4 from my university (it's a legal version).
I can't seem to draw simple circle. (Yes, I pressed in the Shift button to draw perfect cirlces and squares) I get the following:
This is not a circle and my grid lines aren't even like squares they're more like rectangles. Now some details about my monitor. It is a 15,4 (if I'm correct) widescreen laptop, at the resolution of 1024 x 768. I didn't have this kind of problems with the CS3 version (which is also legal).
So I though let's check the pixel aspect ratio, however normally I set it on "square" and this problem will be fixed. Now if I set it on square I get something like that image I posted. So I tried removing the pixel aspect ratio correction, but it didn't help, because it is disabled on square.
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Feb 6, 2009
CS2 and happy with it. Newly installed HP 22" widescreen. Getting to grips with Pix Aspect ratio for first time I have found out how to set a ppi value that produces accurate "print size" previews. However, I edit down from hundreds of sport pictures regularly and want to see an accurate ratio display - it affects the dynamic of the picture IMVHO.
There isn't time to go dragging sub menus around. I'm quite happy with less display space or to use the spare for menus but am finding Win Vista has ideas of its own about what's best for me. Upsum - I want all photos to display with accurate proportions (final use - print). Any advice on screen /photoshop set-up to achieve this would be welcome.
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May 3, 2013
I recently opened a video in PS CS4. Ever since then I get 'pixel aspect ratio' warning and some of the images I create in PS are distorted on screen or when I tile the window and move a layer form one to the other. I can't figure out how to disable or keep this from happening.
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Aug 10, 2013
How do you turn off the pixel aspect ratio in CS6
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Sep 19, 2013
I have some questions related to the use of Photoshop for the preparation of images for projectors and presentations.
I've noticed lately that most presentations I seem to attend are presented with images in widescreen format (16:9). I have found some higher resolution projectors available in widescreen format but have some questions.
In case I create my slides with a size of 1920 x 1080, do I need to adjust anything in Photoshop for this ? Using basic mathematics I would imagine that no adjustments would be necessary. After all 1920 x 1080 amounts to a perfect relationship of 16:9. Is this correct ? Should I expect that images projected by a projector with this aspect ratio will contain square pixels and no adjustments are necessary in Photoshop ?
Is there any situation where a pixel is project as a rectangle instead of a square and adjustments to accomodate this need to be made in Photoshop ?
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May 6, 2013
Since I have upgraded to CS6 I've noticed that when transforming an object it does not maintain the aspect ratio even when I am holding shift while transforming. I have to each time check the link button (maintain aspect ratio)
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Jun 18, 2004
When cropping a photo, is there any way to maintain the aspect ratio? I seem to end up with odd sizes that are hard to print.
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Oct 28, 2008
I have run into an aspect ratio (i.e., 1.25 vs. 1.33) issue for my images (using PhotoShop and/or Microsoft PhotoEditor):
I've created documentation for nearly ten years for an older type company using a CRT monitor. The monitor allowed me to use all resolutions when working with images without any screen degradation. Generally I used a resolution of 800 by 600 but would change, if necessary, due to the project. At this point, I've been given a new LCD monitor and am at the mercy of its native resolution (i.e., 1280 by 1024) even at a higher DPI. In other words, if I work with images and text other than its native resolution (i.e., highest resolution), their appearance is distorted and/or blurred. Since my documentation is image and/or graphics intensive, this is an issue for me to consider.
The first issue regarding this change came about this week. I was asked to revise a section of a manual I created awhile ago. Thus, I found myself saving images in a screen resolution of 1280 by 1024. The original document saved images in a screen resolution of 800 by 600. I feel I can get away with things if its only a few images. However, if I have to revise complete sections; I just don't think things look consistent. For one thing, I'm now using ClearType Font on the LCD monitor vs. the old CRT.
I would like to see if there is a way to somehow change an image saved in 1280 by 1024 screen resolution to 800 by 600 (with similar quality when revising documentation). If not, I think I'll inquire about using two monitors at my desk - using the CRT for revised documentation and LCD for new projects. Agree/Disagree with this scenario?
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Oct 5, 2004
When I crop them I have set the crop tool to 4x3 thinking that's the aspect ratio of my screens at least. IN crop tool am I specifying an aspect ratio or the units my image is in in PS CS [pixel or inches or cm- Inches in my case]?
Also, it just occured to me, what happons to the image if the user has set thier resolution to something other than 4x3 ratio, e.g. 800x720 ?
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Apr 19, 2006
I am working on an graphic email that is going to be sent out to different companies. Ok to my problem:
I got the image size down enough to be a decent email size. Problem is that I am working at 300dpi in order for the small text on the prints to be legible. Ok now I am using 8x10 inches as size but at 300 dpi is way bigger in pixels so when I insert it into the email the images is huge.
Ok what I am trying to do is:
I want the view size to remain at about 8x10 but I want the dpi to remain at 300 for printing quality
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Jan 6, 2006
I want to crop a picture to fit my new 24" 16:10 monitor. The res is 1920x1200. I don't want the picture to be stretched in any way, but I'll accept decreasing the resolution to fit my 1920x1200. So my question is, can I force the crop selection to turn 16:10?
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May 16, 2013
My Photoshop Elements 11 has worked perfectly until today. When I open a blank file and go to change the aspect ratio, the box quickly "greys out" and doesn't allow me to edit the sizes.
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Jul 23, 2013
I came across something very weird and would like to know how to correct it. There are a series of scanned Japanese manga that are JPG files, but for some reason have non-standard pixel aspect ratios stored.
I can open it in Photoshop, uncheck "pixel aspect ratio correction" in the view menu, and it looks like it should. However, what I am curious is how to permanently change this data in the JPG without losing quality.
A friend of mine came up with a fix - open it in a hex editor and change the first 20 bytes to "FF D8 FF E0 00 10 4A 46 49 46 00 01 01 48 01 48 01 2C 00 00". But any way to do this intelligently so I can batch-process the entire bunch of images. There's a whole series of them that all have improper PAR data.
Here's a link to the file in question:
[URL].....
Note that the proper display is to set it to square pixels. And if I recall correctly, that's the default for JPG - which means whoever made this image encoded some custom ones in it, and I want to remove them.
For what it's worth, I can open it in Photoshop, uncheck "pixel aspect ratio correction", then save it as PNG and the PNG file will be fine. But that results in larger files, and again it's not very ideal for a large group of images.
Does Photoshop has the ability to batch-process JPEGs, just to REMOVE the PAR data (or reset it to square), rather than re-encode or re-save the image as another format?
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