Regardless of what you are doing, whether you are just finishing a vital task either at work or at home, it is advisable to wear the most comfortable safety glasses, especially if your tasks involve liquids or materials that fly around. This is why the best safety glasses are always part of the most important personal protective equipment that a worker should invest in. Once you have done this, just post the URL where we can pick up the file.Before starting any type of work where you compromise your safety, it is crucial to put a high priority on offering protection to your eyes. One of the services that doesn't require the recipient to sign up just to retrieve the file would be best. These files may be too large to post here in the forum, so, in that case, please use one of the on-line free file transfer services like Dropbox,, etc. (b) a copy of the Photoshop file (ie, the *.psd file) Immediately after you have converted the raw file, but before you do anything to it in Photoshop. (a) a copy of the raw file that you started with, ie, EXACTLY as it came out of the camera and, Specifically, can you give more detail than your statement, '.once they appear in Photoshop, they don't look good at all.'? In what way don't they look good? Have the colors changed? The brightness or contrast? The resolution or sharpness? Is the image distorted in some way? Etc.etc. We will be glad to try to help you, but we need a lot more information. These 'geometric' distortions can be corrected using other tools in PS, NOT the lens distortion correction tools. These have absolutely nothing to do with the use of a lens. These latter distortions will turn rectangles into trapezoids, circles into rounded tear-drop shapes, etc. Note, all of the above pertains to just lens distortion, not the geometric distortions that arise when the plane of the subject is not perpendicular to the optical axis and/or is not centered on the optical axis. The problem is that doing this just stacks one distortion on top of the other, so unless this is being done for purely artistic effect (eg, exaggerating existing barrel distortion to make a lens act more like a fisheye), one should never specify the wrong lens. That being said, there are other distortion correction tools besides the one in ACR, and it's easy to force some of these to apply the wrong distortion correction - you simply specify the wrong lens. In fact, if you are referring to the lens distortion correction tool that is in ACR, you will notice that the program reads the EXIF data in your image, and if it determines that you have already edited the image (eg, cropped it), the lens distortion correction tool will be grayed out, so there is no easy way to, for example, apply a Mayima lens correction to an cropped version of the image taken by the same lens, and certainly not to an image taken using a completely different lens, like your Canon glass. If you need to crop the image you ALWAYS do it after the lens distortion correction has taken place. In other words, it counteracts the original distortion (eg, barrel) by introducing a different distortion (eg, pincushion) that is the mathematical 'opposite' (aka, inverse transformation) of the original.ДЇor this process to work properly, (a) you must use the preset for that particular lens and (b) the correction *must* be applied to the entire frame, not a cropped portion of the frame. The purpose of the lens distortion tool is to move pixels around slightly to turn the barrel shape back into a rectangle. For example, if you use a lens that exhibits barrel distortion to take a perfectly centered and squared up photo of a rectangle, the image recorded by the camera will come out looking a bit like a barrel. Hi Hanne - The purpose of the lens distortion correction tool is to correct for the distortion introduced by a particular lens, be it barrel distortion, pin cushion distortion, or more complex distortions such as 'mustache' distortion.

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