I just updated to High Sierra on my 2011 iMac. In the applications folder the Aperture app is now greyed out with a white circle and line through it. It will not open. I believe it was the latest version. It said to download the latest version but when I go to my App Store (Canada) it says it's not available for my country.
In June 2014, Apple announced that development of Aperture has been discontinued. Since then, Apple has released six major macOS upgrades. For technical reasons, macOS Mojave is the last version of macOS to run Aperture. Starting with macOS Catalina, Aperture is no longer compatible with macOS.
To continue working with your Aperture photo libraries, you must migrate them to another photo app. You can migrate them to the Photos app, which is included with macOS Yosemite or later, or migrate them to Adobe Lightroom Classic or another app. You should do this before upgrading to macOS Catalina.
The aperture would be F11 if the focal length would be 600 mm. And this is what it means with it being equivalent to 600/11. OS X High Sierra aka macOS 10.13 will. The thickness of the aperture and high reflectivity of the materials enable them to withstand and quickly dissipate increased irradiation from high-energy lasers. Densities as high as 100MW/cm 2 (130MW/cm 2 for molybdenum and Tungsten substrates) have been used without damage to the apertures.
- Wall texture Clavigerinella-type (high porosity, reticulated) Parasubbotina eoclava Test low trochospiral, 4-4½ chambers in final whorl. Chamber size increases rapidly, and the last 1 or 2 chambers are often radially extended. Aperture small, interiomarginal umbilical-extraumbilical with a broad, flaring lip.
- This telescope utilizes a large aperture with exceptional field correction in a compact package, making it ideal for photographers looking for a large aperture, high quality astrograph. The Maksutov-Newtonian optical tube boasts a shorter focal length than comparable Maksutovs due to the Newtonian design, producing a fast f/5.3 focal ratio.
Migrate your library to Photos
If you're using macOS Mojave or earlier
Follow these steps if you're using macOS Mojave or earlier:
- Open Aperture.
- Choose Aperture > Preferences, click the Previews tab, then change the Photo Preview setting to Don't Limit. Close the preferences window.
- From the list of projects in the Library inspector, select all of your projects. For example, click the first project listed, then press and hold the Shift key while clicking the last project.
- Click the Browser layout button in the toolbar, so that all photos are shown as thumbnails.
- Choose Edit > Select All to select all of your photos.
- Press and hold the Option key, then choose Photos > Generate Previews.
- Aperture now generates full-size previews for every photo in your library. To follow its progress, choose Window > Show Activity from the menu bar. Quit Aperture when processing is complete.
- Open the Photos app, then choose your Aperture library when prompted, as pictured above. If you aren't prompted to choose a library, press and hold the Option key while opening Photos. If your Aperture library isn’t listed, click Other Library, then locate and choose your library.
When Photos shows the photos from your Aperture library, migration is complete.
If you're using macOS Catalina
Starting with macOS Catalina, Aperture is no longer compatible with macOS. If you upgraded to macOS Catalina before migrating your library to Photos, follow these steps:
- Install the latest macOS Catalina updates. Your Mac must be using macOS Catalina 10.15.1 or later.
- If you migrated your library to Photos after installing macOS Catalina 10.15 but before updating to macOS Catalina 10.15.1, complete these steps before continuing:
- Select your Aperture library in the Finder. By default, it's named Aperture Library and is in the Pictures folder of your home folder.
- Choose File > Get Info. An Info window for your Aperture library opens.
- In the Name & Extension section of the Info window, replace .migratedphotolibrary at the end of the file name with .aplibrary. Then close the window.
- Open the Photos app, then choose your Aperture library when prompted, as pictured above. If you aren't prompted to choose a library, press and hold the Option key while opening Photos. If your Aperture library isn’t listed, click Other Library, then locate and choose your library.
When Photos shows the photos from your Aperture library, migration is complete.
Migrate your library to Adobe Lightroom Classic
Adobe Lightroom Classic version 5.7 and later includes a built-in tool for migrating Aperture libraries to Lightroom catalogs.
If you’ve upgraded to macOS Catalina, learn about compatibility with Lightroom Classic.
When an Aperture library is migrated to Lightroom, your library's organization, metadata, and image adjustments are preserved, with some exceptions:
- RAW files are migrated, but Aperture's non-destructive adjustment layer does not. Lightroom’s migrator tool includes an option to export and migrate Aperture’s full-size JPEG previews for edited images. If you want to preserve your Aperture edits in another format, export the edited images from Aperture first, then reimport them into Lightroom after migrating your library.
- Projects, folders, and albums are migrated to Lightroom collections and collection sets.
- Faces, color labels, and stacks are migrated as keywords.
- Rejected images are migrated to a collection.
- Slideshows are migrated as collections.
- Smart Albums and custom metadata fields aren't migrated.
- Album organization is alphabetical, so manual sidebar organization might not be preserved.
- Custom metadata fields aren't migrated.
Export your Aperture library
Aperture High Sierra Compatibility
You can also export the contents of your Aperture library to back it up or to import into another app.