nowaday .. there are plenty of photography application which can found at smart phone, ipad , iphone …etc .. e.g nd timer (use for long exposure), star chart (use for star tracking and shooting), star walk (use for star , sun, moon set time) , tide app (use to check tide status) … and most of us will prefer bigger screen but too bad I found iPAD just too big to carry around … so my solution is Lowerpro Field Station – Beltpack
use it to bring iPad, few filters with pouch 😀
contact me for stock availability