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Go Back   IceInSpace > Equipment > Mobile Astronomy Apps

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Old 25-06-2017, 08:57 PM
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Wavytone is offline
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iPhone/iPad - red screen mode

Not sure how many know this - I was shown it by a fellow IISer.

In iOS10 there is a setting to apply a colour filter system-wide - which prevents being blinded by the lock screen or if you accidentally quit Sky Safari:

Settings > General > Accessibility > Display Accommodation > Colour Filter...

Turn this ON (the default is OFF) and choose deep red.

In Sky Safari, set the display to monochrome otherwise blue text will be filtered out as black.

Happy days.
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Old 26-06-2017, 02:38 PM
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sil is offline
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great tip, now how to remind myself to use it?
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Old 26-06-2017, 02:46 PM
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Selure Caps Nieci

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Originally Posted by sil View Post
great tip, now how to remind myself to use it?
You can assign it to the accessibility shortcut (triple-click of the Home button). Settings > General > Accessibility > Accessibility Shortcut (right at the bottom).

If Colour Filters is the only accessibility feature you have enabled then the triple-click will toggle between red and normal. If you have multiple accessibility options enabled then you'll get a popup upon triple-clicking, letting you select which one to enable/disable.
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Old 28-06-2017, 05:41 PM
Hoges (John)
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Thanks for the tips, guys. Works a treat.
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Old 28-06-2017, 09:23 PM
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That's brilliant!

Very handy


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Old 28-06-2017, 10:02 PM
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JimsShed (Jim)
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Thanks Wavytone and Steffen. This is brilliant.
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Old 01-07-2017, 09:49 AM
PhilTas (Phil)
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Old 05-07-2017, 04:57 PM
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Not available on iPhone 5 with iOS 10.3.2. iPhone 5s minimum required. Also not available on iPad mini with iOS 9.3.5.
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Old 07-07-2017, 04:23 AM
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This indeed works very good, but backlight bleeding still lets some white light passing through, which lowers contrast. A red foil overlay increases contrast considerably, even in "red mode".
With a red foil it is really red and without it is more orangish in the dark.
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Old 11-07-2017, 09:55 PM
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This is true. At a really dark site its still too bright with the screen turned down to minimum, and I agree a red film could be desirable. Still... it is a very good start although buried rather deeply in menus.

Now if only Apple would do same in OSX...

Last edited by Wavytone; 11-07-2017 at 11:11 PM.
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