Manual Flash Calculator (Free)

Manual Flash Calculator (Free Edition) provides a handy utility for accurately determining flash-subject distance. It's quick and easy to use for tricky lighting situations and backgrounds, where TTL auto-flash can often struggle.

This app is ad-free, and requires no special device permissions or network connectivity.

Key Features:

• Aperture range F/1.2 to F/22

• ISO range ISO50 to ISO6400

• Flash output ratios to 1/256 power

• Flash exposure compensation to 5 EV

• Zoom support for unlimited guide settings

• Power increments in 1/3, 1/2 or Full stops

• Macro closeup distances (in and cm)

Set the guide number/zoom coverage, power-ratio limit, power adjustment interval, and guide number units for your flash. (You can find this information from the guide number table in your flash user manual).

If you own more than one flash unit, please consider supporting this project by upgrading to Manual Flash Calculator Professional. It supports saving an unlimited number of flash configurations. And it costs less than the price of a cup of coffee!

手动闪光计算器（免费版）提供了一个方便的实用程序，可以准确地确定闪光对象距离。它可以快速轻松地用于棘手的照明环境和背景，其中TTL自动闪光通常很难。

此应用程序是无广告的，无需特殊设备权限或网络连接。

主要特点：

＆公牛;孔径范围F / 1.2至F / 22

＆公牛; ISO范围ISO50至ISO6400

＆公牛;闪光输出比率为1/256功率

＆公牛;闪光曝光补偿至5 EV

＆公牛;缩放支持无限制的指南设置

＆公牛;功率增量为1 / 3,1 / 2或全停

＆公牛;宏特写距离（in和cm）

设置闪光灯的指南编号/变焦范围，功率比限制，功率调整间隔和指南编号单位。 （您可以在Flash用户手册中的指南编号表中找到此信息）。

如果您拥有多个闪存单元，请考虑通过升级到Manual Flash Calculator Professional来支持该项目。它支持保存无限数量的闪存配置。它的成本低于一杯咖啡的价格！