AGeoJO wrote:
Charles,
I know you have experimented with the app quite a bit. Maybe you can explain the following for me or us:
1.There are several fixed (dummy) settings in the app's menu. I assume that each setting will just initiate varying number of exposures. Is that correct?
2.The Custom Mode lets you select the number of exposures. But too many exposures may result in "fake" (for lack of a better word, right now) looking image, or something that doesn't occur naturally. Based on your experience, what do you think will be the number of exposures that strikes a nice balance, please?
Thanks,
Joshua
On 1), the app presets set the number of exposures but you can still choose from 'low', 'mid', or 'high'. The preset also sets the aperture/shutter speed based on available light. The Custom mode is the one you want. You control exposure (aperture/shutter speed) and also the exact number of exposure you want.
Regarding question 2), I have used 256 images without any issues. The resulting image won't look fake. The only issue is that the image will be practicably noiseless and therefore you may see some banding. There will be no noise to dither the transition zones and that may result in posterization. It's not a big issue but something to be aware of. Make sure to use the RAW output as with JPEG, this will be very obvious. (Well, the app only let's you choose RAW + JPEG, so later on, just throw away the JPEG files)
Another tip is to expose to the highlights. The resulting RAW from this app does not have the same latitude for the highlights are a regular RAW does. It's never an issue as in post, you can push the shadows several stops without any noticeable noise increase.