PIX 2015

Exposure calculator app problem

Started Aug 28, 2014 | Discussions thread
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Colin Franks
Senior MemberPosts: 1,143Gear list
Exposure calculator app problem
Aug 28, 2014

Is anyone familiar with this particular exposure calculator app?


I've been using it lately but all the images are underexposed.

Here's my procedure for a long exposure shot:

I'll compose my shot on the tripod.

Manual focus.

Put it in aperture priority mode (at f/16 for example) and see what the exposure time is (without ND filter).

Put on 10-stop ND, and viewfinder block.

Calculate using the app, setting the EV adjustment to +10 for the 10-stop filter.

Shoot in Bulb mode using a wired remote for the time calculated.

Another dark image!

I'm particularly confused by the two orange buttons at the bottom/left of the app screen. Are you supposed to adjust the bottom two values to match the top f-stop and ISO or what?

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