Photography, like the East, is a delicate matter: the final result depends not only on what exactly and from what angle you photograph, but also on the time when you take the picture: for a camera, morning and midday lighting are perceived completely differently and create different mood in the photo. It turns out that you need to somehow determine the most favorable time for shooting – and this task is perfectly handled by the application for iPhone with the complex name The Photographer's Ephemeris.
The application works on the principle of determining the lunar and solar phases. In TPE, you can see the time and azimuth of the rising and setting of the Moon and the Sun on a selected day at a specific location – locations can be saved in the Locations section.
You can also see the main phases of the Moon and Sun during the day.
By moving the slider at the bottom of the screen, find out at what angle to the Earth the stars will be at a certain time. Thus, you can choose the time when the lighting will be the most profitable. In addition, by adding a second (gray) pin to the map and switching the mode to Distance, you can find out the distance between the two marked points, as well as the elevation difference and azimuth. Calculations are only possible with an Internet connection.
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You can search for optimal lighting not only on the timeline, but also in a separate Visual Search tab. Here you need to select the desired azimuth and voila: a list of dates and times appears when the desired position of the Sun or Moon will be fixed in the selected place.
The Shadows tab allows you to calculate the length of the shadow under the selected conditions: for this, it is enough to indicate the height of the object.
Additionally, you can report the height of the second object, as well as mark at what height each of them will be. You can also enable horizon accounting.
You can export in various ways. For example, save as an image to the Camera Roll, export to The Photographer’s Transit, the second well-known application of the same developer, send by e-mail, add to the calendar, print or send via AirDrop. In the latter case, you will receive a file in KML format – it is used in programs Google Planet Earth and Maps Google. You can open such a file on macOS using the applications Google Earth, Merkaartor, Blender with the plugin Google Earth Importer or Keyhole PRO.
The application stands out among its kind, first of all, for its excellent data visualization: the phases of the Sun and Moon are in most applications for tourism, but they are usually not implemented so clearly.
In addition, the application uses its own algorithm, which correctly calculates, for example, the start and end times of the Polar Night – many navigators cannot cope with this task. Of the minuses, it is worth noting, perhaps, the not always intuitive interface of the program and the fact that without the Internet your search capabilities will be limited only to that part of the map that you viewed when you were connected to the network.