FilterCompute
Free
1.3for iPhone
Age Rating
FilterCompute 螢幕截圖
About FilterCompute
Given an exposure without a filter (fStop, ISO, exposure time) and a filter adjustment factor, this calculator will simplify finding a correct fStop, ISO and, exposure time that will provide a correct exposure with the filter. The calculator completely eliminates the guesswork out of calculating a correct exposure for a filter that is too dark to take a correct through-camera exposure.
The iPhone can be used as a light meter to take an exposure, eliminating the need to manually enter the exposure data.
If a graduated neutral density filter is needed to balance lighting (e.g., between sky and land), the iPhone can be used to find two exposures. The fStop difference is calculated automatically between the two exposures to assist in selecting the best filter to produce the intended image.
Exposure increments can be computed in 1.0, 1/3, or 1/4 fStop intervals. Exposure times can be entered as ratios (1/30), and in seconds (the default), minutes, hours, or days.
The iPhone can be used as a light meter to take an exposure, eliminating the need to manually enter the exposure data.
If a graduated neutral density filter is needed to balance lighting (e.g., between sky and land), the iPhone can be used to find two exposures. The fStop difference is calculated automatically between the two exposures to assist in selecting the best filter to produce the intended image.
Exposure increments can be computed in 1.0, 1/3, or 1/4 fStop intervals. Exposure times can be entered as ratios (1/30), and in seconds (the default), minutes, hours, or days.
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最新版本1.3更新日誌
Last updated on 2019年01月25日
歷史版本
Added picker controls for entering ISO, fStops, and exposure times. Added a 1/2 fStop increment for solver adjustments. Minor interface improvements.
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Version History
1.3
2019年01月26日
Added picker controls for entering ISO, fStops, and exposure times. Added a 1/2 fStop increment for solver adjustments. Minor interface improvements.
1.2
2018年12月05日
Updated interface. Efficiency enhancements.
1.1
2017年06月02日
Updated to current iOS. Minor formatting updates.
1.0
2014年05月20日
FilterCompute FAQ
點擊此處瞭解如何在受限國家或地區下載FilterCompute。
以下為FilterCompute的最低配置要求。
iPhone
FilterCompute支持English