It is now possible to export high resolution images from the 3D View. To do so:

1. Have the 3D View open.
2. Click 3D View | Tools | Export Image.
3. In the Export image dialog, choose from the available image formats (eg. TIF, PNG, JPG).
4. Check the Show options dialog box.
5. Choose a filename and location, and click Save.
6. In the Export Options dialog, choose your preferred export image options for the chosen filetype .(eg. resolution and color format).
7. Click OK and the 3D View image is exported.

Updated April 2020