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The drop down focal length selection panel in LR3.Īnd here’s a ‘before’ (no profile) and ‘after’ (9mm profile) comparison of a profile being applied: Here’s how your Lightroom 3 options will look if you named your profiles correctly:
#Lightroom ptlens download#
Finally, the Adobe application allows you to submit the profile to Adobe’s user forum though for some bizarre reason the submitted profiles are only currently available for download to Photoshop CS5 users, not Lightroom 3 users. (There are also instructions for those poor, unfortunate Windows users who place little value on their time and have yet to get a life). Once done you place the profiles in the /Library/Application Support/Adobe/CameraRaw/LensProfiles/1.0 directory on your Mac where they will be available to all users of that Mac. I focused (!) on creating profiles at disparate focal lengths as it’s barrel distortion that is the most sensitive variable for my use and it varies significantly with focal length. For the criminally insane, you could generate multiple profiles for each focal length at varying apertures, (chromatic aberration varies with aperture) but I would rather be taking pictures. It doesn’t take but a few minutes to take the pictures (alignment, per Adobe, is not critical) and, on my nuclear powered Mac, Adobe Lens Profile Creator took some 2 minutes to generate each of the four profiles from the nine constituent pictures I took for each. As chromatic and barrel distortion in the Olympus 9-18mm lens vary with focal length, I did this at the four marked focal lengths – 9, 11, 14 and 18mm – a total of 36 pictures. You take nine pictures of the chart – I used RAW as that is all I use – convert them to DNG format by importing to LR3 then exporting in DNG format, and then you load the nine DNG images into Lens Profile Creator to create the lens profile for a specific focal length.
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The PDF instruction guide for Lens Profile Creator can be found here and the instructions for printing the calibration charts are here.Ĭreation of a lens profile is easy. Here is what Adobe says of their application:
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Panasonic lens’ distortions are corrected by the software in the G1/G2/G10/GH1/GF1 range of bodies. With the G1 it’s only necessary to do this for non-Panasonic MFT lenses like the Olympus 9-18mm ultra-wide zoom.
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The download includes not only the charts (you must print one so that you can photograph it) but also instructions for use of both the application and details of how to set up your camera and lighting. Well, it turns out that Adobe provides a free application named Lens Profile Creator which allows you to create your own lens profiles for just about any lens on any camera, film or digital, from iPhone to Leica S2 or scanning 4×5 back on a field camera. In my third column reviewing that outstanding optic, I stated:
They provide a fine tool to create your own lens profiles, for example when using non-Panasonic lenses on a G-digital body, like my newly acquired Olympus 9-18mm MFT. Adobe has not left Panasonic MFT camera users out in the cold when it comes to automation of corrections to remove distortion, chromatic aberration and vignetting in Lightroom 3.
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