Archives For High Dynamic Range

Dawn Aug 27

Dawn on Appleton Ridge

 

Good morning from the Ridge here is Appleton, Maine. There was a beautiful sunrise this morning, so ran outside to shoot a photograph capturing the late summer season. Fall feels like it is just around the corner….

The sun was just a little too high in the sky for an open shot of the St George valley, plus I wanted to include the turning grass and wildflowers to better capture the feel of summer coming to an end. This was a great opportunity to use the dew covered grass as foreground. Not only does this help capture the mood, but on a practical note, cuts the brightness of the sun, while allowing me to see the textures of the vegetation.

To ensure a wide dynamic range (seeing details all the way from the shadows to highlights), I set the camera to continuous high, or burst rate, and shot five frames with one stop differences in exposure and then blended them with HDR Efex Pro.

I also chose to have a relatively large depth of field, bot not push this too far, as the out of focus elements would help add depth to the photograph.

Shot at 1/200th sec at f8   17mm lens on a Nikon D800

 

PS  I also grabbed a quick shot of my trusty camera assistant using the same technique

 

Trusty camera assistant- Rosie

Trusty camera assistant- Rosie

 

One of the great things about digital cameras is the ability to push the limits in terms of the images that you can capture. Not only can you change ISO and white balance as you move between locations but you can also easily combine images to stitch together panoramas or capture details that would not be possible with a single exposure. HDR (High Dynamic Range) has become a well known technique and is often used to retain details from the highlights to the shadows in a scene that exceeds the normal range that a camera could capture.

I just returned from shooting dawn in Camden Harbor in Maine. Although I was mostly shooting video with my D800, I grabbed a few still images just as the sun was rising. The straight image is pretty unremarkable due to the huge difference in the lighting between the still shaded harbor and the sky. But seeing potential of the scene, I shot a series for HDR.

Camden Harbor Sunrise Single

Camden Harbor- Single Exposure

I have a love of black & white images and find that combining HDR with a B&W conversion gives great results. But be warned, there is no instant gratification with this technique and just as it was back in the film days, the final result only appears once you start processing the images. There are also dangers involved if you get too carried away! More often than not, to my taste, HDR images appear over done, what is known as overcooked. Its a personal choice and you may love this look pulling out the detail, so apologies if you prefer the first version of this shot!

Camden Harbor Sunrise OC

HDR- Overcooked

 

I combined 5 exposures using HDR Efex Pro, part of the Nik Software Collection. One correctly exposures and two either side, each in one stop increments, over and under exposed. The software first combines the images taking out ghosting (where elements of the images may have moved e.g. a blowing flag), color aberrations etc… Then comes the dangerous part. Once you have saved the combined images, the HDR version appears but you can dial in different amounts of the effect including tonal compression, saturation, detail etc. To make it easy, HDR Efex Pro  shows you a selection of versions with different variations. If you are tempted to go extreme or just use a preset, you end up with something like the photo shown above. Again… you may love this version!

I first check the various recipes for the image that HDR Efex Pro suggests, select the one nearest to the look I want and then play with the settings to give some fine adjustments. This gave me this version with a less dramatic look, but a greatly enhanced dynamic range compared to the single image.

Camden Harbor Sunrise Color

HDR- Adjusted image

 

This adjusted image is much more pleasing and more like what the naked eye would see. Not content with this, I also did a black and white conversion. Normally I would do this through Nik’s Silver Efex but actually selected the B&W version directly through HDR Efex and was quite pleased with the results.

 

Camden Harbor Sunrise

Camden Harbor HDR Black & White

 

The final decisions come down to you. You can add more or less detail in the highlights and shadows, play with saturation or do the black and white conversion. If not over used, HDR can make for a spectacular image, so go out and give it a try.