Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Long Exposure Calculator (Camera:How to do star trail photography.) 螢幕截圖

iPad

Long Exposure Calculator (Camera:How to do star trail photography.) 海報

iPhone

About Long Exposure Calculator (Camera:How to do star trail photography.)

1:This application is a long time exposure calculator which is useful for both beginners and professionals.
2:Learn how to do simple long exposure, like star trail photography.
(Preparation / Focus / Long Time Exposure)

If it is short-time (1 to 30 seconds) exposure, it is not necessary to calculate. Because,the optimal exposure is acquired by the photograph is taken several times.

On the other hand,stellar orbital photography,night photography,etc. have the necessity of taking a photograph for 30 minutes or more when you take a photo of long time exposure.

This application can calculate the required exposure time by inputting a standard value (F-value,ISO-value, and the number of seconds), and a preset value (F-value,ISO-value).

Like I said before, this application was made for the practical function of long time exposure photography that everyone can use if they have the right equipment.

Please take advantage of this application and enjoy great a long time exposure photography.

■2016.02
F-value bug fix.

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■World Review

Great! ⋆⋆⋆⋆⋆
Very useful application! I only miss a timer and the time with a nd-filter but hey, it's free and great made!

great ⋆⋆⋆⋆⋆
and usefull app ! very simple to calculate the needed exposure time .