Very well done, minor usability quibbles

As a long-time user of DOFMaster on the Palm and recent switch to iPhone, I downloaded Simple DoF Calculator based on the high reviews. Simple DoF Calculator makes data entry fast and simple because all data entry is done on one 3-slider wheel. DOF calculations are identical between the two (as they should be). Couldnt imagine a simpler and more straightforward way to design this app. It does exactly what it should and is attractive and very easy to use.

Two minor quibbles:

1) The focus (distance) and focal length (lens) choices should run in consistent geometric progressions just like real cameras. Its odd to see choices of 90, 95, 100, then 101, 102, 103, ... for focal length, and a 1 mm precision at 100 mm is not really useful and makes it harder to find the right setting. Instead, have every choice be, for example, 5% or 20% bigger than the last one depending on whether fast spin mode is selected. Similar for f/stop.

2) Even though it is likely rarely needed (maybe never), it would be nice to have the focus setting go beyond 100 feet.

mk9s about Simple DoF Calculator