Special facilities exist in PTLens for converting fisheye images to rectilinear images. Fisheye images are distinguished by immense amounts of barrel distortion. The change is difficult to see in the small image shown below, but is obvious in an 8"x10" print. PTLens enlarges or shrinks individual color channels to compensate for this effect. CA is often most severe near the corners of an image and decreases in effect towards the center. The following image has a severe case of chromatic aberration CA. You can compensate for vignetting, and lighten the edges and corners, using the controls in the Vignetting tab. Vignetting, or a slight darkening of the edges and corners of an image, can occur with some wide-angle lenses. Choose the radio buttons below to correct barrel distortion, perspective distortion, and view the final image. This caused vertical features to converge near the top and is an example of perspective distortion.Īlso notice that the horizontal features, that are actually straight, appear to be curved in the image. The camera was tilted up to include the facade. Installation instructions are included in the dmg ReadMe file and may also be found online.Barrel and Perspective Distortion The following image, a photograph of the Standard Insurance Center, was taken with a wide-angle lens. Further instructions are included in the ReadMe file. In the new directory double-click on the install. The latest release includes support for Corel PaintShop Pro. Apex ap-0: grinta, alettoni come a le mans e dimensioni The latest release includes support for Apple Photos.
If your anti-virus software reports a virus in PTLens please read this.
The manual contains detailed information for all features. For faster action press the Shift key while scrolling. In PTLens click on a text box associated with a slider and rotate your mouse wheel. You submit the images and I'll do the calibration for free. Calibrations for cameras and lenses are based on images submitted by users.
If PTLens indicates your camera or lens is not in the database first download and install again. Version numbers do not change when new cameras and lenses are added to the database.
The Model drop-down list may indicate format, Choose Raw for Raw images that have received no correction. The license is valid for both the plug-in and standalone application, on all your computers Mac or PCand remains valid for all future releases.
Purchase a license to convert the trial version to fully functional software. Once this is done you may restore Gatekeeper's setting.The download includes a trial version of PTLens that is valid for 10 images. For plug-ins open the application using the plug-in, open an image, and invoke PTLens. For the standalone program or external editor double-click on the program. Now you may run PTLens once so it is accepted by Gatekeeper.
For older versions of OS X click on the lock (1) and choose the Anywhere (2) radio button. For OS X 10.9 (Mavericks) or later choose the Open Anyway button after encountering an error indicating the software is from an unidentified developer. To disable Gatekeeper open Finder, choose Applications > System Preferences, and click on Security and Privacy. Choose OK to dismiss the dialog then immediately disable Gatekeeper. For example, if you plan to use the standalone program and a plug-in you must disable Gatekeeper, run both applications, and then you can restore Gatekeeper to its previous setting.įirst try opening PTLens so you get an error message indicating the software is from an "unidentified developer". This must be done for each version of PTLens that you use. With OS X 10.7 (Lion) and later it is necessary to disable Gatekeeper before you run PTLens the first time.