Luminous Landscape Forum

Raw & Post Processing, Printing => Digital Image Processing => Topic started by: PeterAit on November 08, 2013, 08:03:48 am

Title: HDR Expose 3 question
Post by: PeterAit on November 08, 2013, 08:03:48 am

When I load images into Expose 3 for HDR processing, I am asked to select the key image. What is this?  The manual does not explain. I assume it's the "properly" exposed image, is that right?

Title: Re: HDR Expose 3 question
Post by: Bart_van_der_Wolf on November 08, 2013, 09:09:28 am

Quote from: PeterAit on November 08, 2013, 08:03:48 am

When I load images into Expose 3 for HDR processing, I am asked to select the key image. What is this?  The manual does not explain. I assume it's the "properly" exposed image, is that right?

Hi Peter,

It's mostly used for ghost removal, to dictate which the main exposure to consider is.
See here (http://www.youtube.com/watch?v=ehZspJjPkQE) for a demonstration.

That link also explains why one would usually select a key-frame that is exposed correctly or slightly underexposed.

Cheers,
Bart