Category Archives: Unfinished

Understanding AF Detection at f/8 on DSLR Cameras

Misunderstanding 1: The inability to focus at small apertures is nothing to do with amount of light. You still have a lot of light with f/8 in sunny day, much more than at f/2.8 indoors. It is actually related to Phase Detection AF mechanism which operates much like range finder comparing images from different angles to determine it’s in-focus or not. Small lens aperture just blocks light paths from different angles, and as the result, makes AF sensor unable to work reliably or not at all.

Misunderstanding 2: Older Nikon cameras may not auto-focus reliably with a lens having a maximum aperture smaller than f/5.6. That may sound bad, if you assume that it means the camera will not auto-focus reliably when the aperture is closed down to f/5.6. That is not what Nikon is saying! Instead they are telling us that auto-focus may not work reliably on older Nikon cameras with a lens having a maximum aperture of f/5.6, with the emphasis on the word maximum.

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Jailbreak iPhone for Pokemon Go

Step 1. Jailbreak iPhone:

  1. Install iPhone/iPad windows Drive:
    1. Download iTunes 12.1 Setup
    2. Install it (to install driver)
  2. Use TaiG Jailbreak Tool to jailbreak iOS 8.1.3 – 8.4
    2. Remember to uncheck “install 3K Support”.

Step 2. Hide Your Jailbreak:

  1. Use xCon (search in Cyndia store)

Step 3. Download a Location Faking App:

  1. Free: Anywhere
  2. or (with fee) On the iPhone, the best Cydia app to fake your iPhone location is LocationFaker. Here’s a guide on how to install and use LocationFaker for iOS 7, iOS 8 and iOS 9.