to maintain a high dynamic range), it is also often used as a creative tool (enhancing textures and adding custom styling by using nonlinear tone map compression). It goes without saying that without HDRI we would see blown out highlights and clipped/banded shadows for both the above images.Īlthough HDRI can be used to for realism (i.e.
To correctly merge the overall shots without adding motion blur, thus keeping the distant tower and treeline intact. To remove ghosting in the wire between the three shots, without losing detail in the wire, and without blurring the grass texture around the wire. The challenge here for the HDR software is The camera is hand held, and there is a breeze on the barbed wire. ‘High autumn sun 02’ was again shot directly at the sun, using three exposures 0.7EV apart. In this shot the big cloud has the sun directly behind it, and appeared a bright white. To maintain realistic colour to the road and walls (which would otherwise tend towards bright blue). To give some detail back to the road in the near ground (as it is out of focus close to the lens). To ensure that the direct sun does not white out the sky. The challenge here for HDRI software is threefold The sun is to the upper right in clear air, and is actually too bright to look at. ‘High autumn sun 01’ was shot with the camera on the ground using three exposures 0.7EV apart. The images below are shot to test particular important features of HDRI, as noted in the descriptions high autumn sun 01 In fact, you probably only really want to know how good the just-released Nik HDR EFEX Pro is vs existing solutions, and want some insight regarding whether it is worth changing over to it. The review is aimed at existing HDRI users, and I have kept it to brief bullet points under the assumption that you know the issues in HDRI, and standard HDR photography work flow. I present the results of my trial below (as well as a few other test shots) as a flash review consisting of brief pro/con bullet points. I then reconstructed the shots as tone-mapped images using three different applications Last week, I drove around the Peak district (UK) whilst taking a large number of shots directly into the autumn sun. 
Those suns make a perfect subject for evaluating a number of HDRI (High Dynamic Range Imaging) applications. Review updated and conclusions significantly revised 6Nov 2010 original review was overly critical of Nik EFEX, but the issue was almost certainly due to my own camera work!Īutumn is the time of low, cold bright suns.
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