Beyond the Zone System - Exposure/Development App - Oldest iphone - ipad it works

[Mustafa Umut Sarac]

Beyond the Zone System - Exposure/Development App - Oldest iphone - ipad it works ? I want to use it but on second hand cheapest oldest iphone or ipad.

 

[Paul Howell]

Here is a link to the folks who make the Iphone/pad app, they may be able to give you an answer.

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