PhotoCompute

Bug fixes.
Minor interface improvements.
Improved calculations using flash units.

All exposure capture functions now work correctly.
Pressing Save once now retains all new equipment information.
The app is more stable during iPhone task switching.
Miscellaneous bug fixes for flash entry fields.
Fill flash tabular output is improved.

Flash guide numbers may now be entered manually.
High speed flash sync may be turned on for each flash unit.
The fill flash algorithm was rewritten and now includes high speed sync flash capability.
Optimal fStop is now calculated more accurately.
Sliders may be tapped on either side of the control to move the slider up or down in smaller increments.
Calculations now update correctly if flash settings were changed in Equipment.
Built-in flash guide numbers are now stored correctly as meters.

Menu bar placement is now correct for the iPhone 6s Plus. Other minor bug fixes.

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Subject distance is now saved after the iPhone was turned off.
If the equations database has not been updated, the first equation listed will not be interpreted as "all equations", but will show the correct equation.
All settings, including focal length, will be restored if requested after exposure is unlocked.
All settings are now correctly saved between screens and app invocations.
If exposure was locked and a flash unit was active, changing the ISO did not always give the correct fStop. This has been fixed.
Settings are now restored in Calc+ when the help system is closed.
Misc. bug fixes and interface improvements.

An issue with the lambda (wavelength) setting being saved correctly has been fixed.
In Calc+ the blur sliders now operate more efficiently.
In Calc+ values are now highlighted in blue for increased readability.
In DOF+ the pupil ratio settings are now saved.
In DOF+ the button to set distance to hyperfocal(HF button) is hidden when distance is being calculated; the button is hidden now in all cases when HF is undefined.
In DOF+ a problem with pupil magnification being used correctly in calculations has been fixed.
Minor additional bug fixes.

Improved accuracy of calculations.
Better retention of settings.

The near focal distance algorithm has been adjusted to more accurately calculate near distances at different subject focal distances.
DOF+ settings are now correctly retained.
Added an HF button to enable the user to set the subject (focal) distance to the hyperfocal distance.
A custom circle of confusion value can now be manually entered in Equipment.
Emailing an equation now sends an attachment that preserves the original html formatting.

Fixed a rounding error that could cause a flash unit that has high sync speed capability to be incorrectly placed in high sync speed mode. (If this occurred, the exposure calculated would create an overexposure because an incorrect assignment to high speed sync would underestimate the flash intensity and .)

Improved two Solver functions: Filter exposure adjustment and the fStop calculator utilities.

Pupil ratios in DOF+ were not being retained when a new view was selected. This has been fixed.

Minor coding improvements.

The iPhone camera can now be used to obtain exposures in Calc+ and two solver functions: Fill flash and filter adjustment screens.
Editing a field is now cancelled by selecting another view or subview in Calc+.
Input field editing is now better restricted to appropriate keystrokes, depending on the quantity being entered.
Zoom flash labels are reversed to better reflect their meanings.
Equation listings in Calc+ could show some DOF+ equations, and vice versa. This has been resolved.
The on-camera flash distance now always shows the camera-subject distance in Calc+.
Exposure text box and slider in the Exposure view in Calc+ were not adequately responsive. This has been fixed.
Under some macro conditions the minimum and maximum distances could be reversed. This should no longer occur.
The Auto and Manual labels in the Zoom flash window in Calc+ are reversed, to better reflect their meanings.

Info fields are now being updated correctly.
Minor adjustments were made to initializations in solver functions so that output fields don't show invalid values.

The algorithms for computing focal parameters have been improved. More accurate results are obtained when combining an extension tube and teleconverter.
The equation dictionary has been improved, describing more accurately and completely how results are obtained.
A screen for assisting with filter exposure adjustment was added to the Solver. An exposure compensation factor can be entered along with an exposure taken without the filter, and the speed, fStop, and/or ISO can be adjusted to match the required filter factor.
Various improvements and minor bug fixes.

The focal length is now correctly restored after relaunch.
The circle of confusion is now specified when installing a camera body in the equipment database.
Hyperfocal distances are now computed using the estimated effective focal length (i.e., the focal length the lens is actually operating at) and not just the full rated focal length of the lens.
Blur diameter processing was improved. The Blur subview was slightly redesigned to accommodate better infinity distance processing. In particular, the front blur distance was redefined to operate from the camera position instead of relative to the subject.
More informative output is provided in Solver/Fill flash when none of the examined camera/flash combinations meet the criteria for a correct exposure.
A new exposure setting is now correctly saved after turning Lock Exposure off and changing the settings.
Many bug fixes and improvements in equation view formatting and processing.
Equation views can now be emailed. There is an option for processing all equation views at once.
Equation views can now process multiple equations. This will simplify the equation listing, allowing for more information on each page.

Fixed an issue that prevented manual flash power mode being correctly saved in the Equipment database.
Popup-calculator keys now have visual feedback when touched.
Improved flash calculations for high speed flash and macro exposures.
Added a high-speed sync flash factor to the Equipment database for flash units that improves the accuracy of calculations for high-speed flash exposures.
Exposure settings are now saved when Exposure Lock is turned on. When Exposure Lock is turned off, the user is prompted as to whether initial settings should be restored if they had changed from the original values.
Rewrote the solver fill flash function, which now provides a wide range of exposures for fill flash in both bright light and low light conditions.
Full numeric values are now stored in DOF+ instead of relying on values entered in text fields, which had created minor rounding errors.

Several improvements and bug fixes to Calc+ operation:
The new popup calculator design is improved.
Flash exposures are now correctly revised for new ISO settings.
Flash on/off settings are now retained.
Efficiency in saving field entries is improved.
Fixed an issue in which the last flash unit in a list couldn't be turned on.
Added more information on the flash unit list.
Additional error messages for out of range distance entries.

Fixed some issues with flash activation.
Fixed some formatting issues resulting from iOS7 conversion.
Added a full calculator and a guide number calculator to Solver.
Added a small, movable popup calculator to several screens.
Menu now shows automatically after exiting a function. Can now click on background to hide menu.

iOS 7 compatibility.
Minor bug fixes.
Fixed some calculations that were based on an infinite DOF.
Increased efficiencies of some iterative-solution algorithms.