Dear Karin and Britt, That worked! The machine I really need to change is off site but I have an identical Mac here I use to run the Hasselblad. I tried it and although there was no file in there because we hadn't used it for measurement yet, once I pasted the file in there and restarted Photoshop it worked fine. Thanks so much. This list is fabulous! You just saved me heaps of work. :)Cheers,Geoff ----- Original Message ----- From: "SciArt-L Discussion List-for Natural Science Illustration-" To: Cc: Sent:Wed, 12 Mar 2014 19:18:56 -0400 Subject:Re: [SCIART] Swapping measurement scales in Photoshop extended I haven't customized my measurement settings so don't seem to have this file, but try here: User/Library/Preferences/Adobe Photoshop CS6 Settings/Measurement Scales.psp K On Mar 12, 2014, at 6:19 PM, Geoff Thompson wrote: Dear All, In my photographic imaging system all the Canon lenses are calibrated at each magnification setting of each lens. So I can insert a measurement scale in Photoshop Extended using image analysis. I was sent an updated file some time back but it turned out I had a different extension tube on my 1.4x teleconverter. So there were errors. I’ve just spent days checking and correcting where necessary every setting. I now need to change these settings on a Mac used with our portable system offsite. I believe I will have to do this manually, using the measurements I’ve recorded but this will take many hours. By contrast this is how I was instructed to change the file on a Windows system. "How to swap out an old measurement file in Photoshop CS3, 4, 5 or 6 Right click the new PS measurement file you have and select copy. Go into control panel Control PanelAppearance and Personalization Then select show hidden files. Then go here on the C drive C:UsersUserAppDataRoamingAdobeAdobe Photoshop CS6Adobe Photoshop CS6 Settings Remove your old measurement file (Save it first) and paste in the new one. The next time you use the measurements in PS you will have ALL the settings. I would strongly recommend that you copy the old file and save it somewhere safe in the event you wish to revert back or need it to verify a measurement on an older file. Path in Windows to place the PS measurement file. C:UsersUserAppDataRoamingAdobeAdobe Photoshop CS6Adobe Photoshop CS6 Settings" The file is called "Measurement Scales.psp". I checked with our IT guy who knows Macs (but is not a Photoshop expert) but he didn't think there was a way of quickly installing it on a Mac. I thought I would ask if any of you know of a way round this problem. Thanks, Geoff ________________________________________________ Need to leave or subscribe to the Sciart-L listserv? Follow the instructions at http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv [2] ________________________________________________ Need to leave or subscribe to the Sciart-L listserv? Follow the instructions at http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv [3] ------------------------- Email sent using Optus Webmail Links: ------ [1] mailto:[log in to unmask] [2] http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv [3] http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv Need to leave or subscribe to the Sciart-L listserv? Follow the instructions at http://www.gnsi.org/resources/reviews/gnsi-sciart-l-listserv