Tag: luminance

Focus on Fireworks

Posted on July 9, 2013 by Nick Roberts

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This year for the Fourth of July fireworks I tried a new technique that I read about in several various posts around the web. The basic premise is to use focus to create blur around a fireworks explosion. I set my focus at just short of infinity and then refocused after tripping the shutter. I used shutter speeds of 1 and 2 seconds at f5.6 and f8 to experiment with this technique.

Click on any image to enlarge it in another window.

Click on any image to enlarge it in another window.

Click on any image to enlarge it in another window.

Click on any image to enlarge it in another window.

Click on any image to enlarge it in another window.

Click on any image to enlarge it in another window.

Click on any image to enlarge it in another window.

I finished all the images in Aperture 3 and really cranked up the sharpening both in the RAW file and in the finished image. I also played around a lot with the Saturation, Luminance and Range sliders in the individual color channels to intensify the colors.

All in all I am better satisfied with these fireworks images than any I have attempted in the past. I think I’ll work on refining the technique the next time a fireworks opportunity presents itself.

Louisville’s Downtown Bridge Is Underway

Posted on July 2, 2013 by Nick Roberts

The first phase of construction on the Downtown Bridge is underway.

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This is another HDR image of Waterfront Park looking west toward the crane that will be part of the skyline for the next couple of years. I shot this from the ramp to the Big Four Bridge overlooking the Swing Garden. I shot a handheld bracket set of three frames +2, 0 and -2 EV. I was able to hand hold the shots because it was mid morning and the light was high which resulted in relatively short exposures.

I first took the three RAW frames into NIK Sharpener Pro and applied adaptive sharpening to all of them. I then opened them in NIK HDR Efex Pro 2 where I merged them and applied the Deep 2 preset which I tweaked a bit to reduce some of the luminance and saturation. I then returned the merged image to Aperture 3 for final adjustment, sharpening and added a small vignette. In Aperture 3 I also adjusted the exposure and contrast as well as tweaking the individual color channels in the green, yellow and blue areas.

Topaz Clarity vs Topaz Adjust

Posted on May 23, 2013 by Nick Roberts

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Today I decided to go back to an image I posted a few days ago that I had processed in Topaz Adjust. I have always liked the effect that Topaz Adjust has when applied to these sorts of rusted relics. I usually apply the Spicify preset and then tweak it to achieve the final result. The one thing that I have always struggled with when using that method was the extreme halos that arose when pushing contrast, saturation and definition to enhance the texture in the image.

Topaz Clarity is designed to allow enhancing texture, contrast and saturation while minimizing halos and similar artifacts. The image below shows haloing in the sky and around the edges of the tractor that are almost entirely gone in the Topaz Clarity processed image. From these two images it seems clear that they have accomplished their goal. I was able to open up the shadows and saturate the colors without getting the types of halos that the Topaz Adjust version below exhibits.

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From this experiment I can say Topaz Clarity lives up to it’s billing. I’m sure that as I become more familiar with the software I’ll be able to create images that reflect my vision for them while avoiding having to go into additional processing to deal with halos. I think Topaz Clarity is a valuable addition to my processing software and recommend it to anyone looking for a program that will give great control to contrast and color in single frame images.

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Topaz Clarity will retail for $49.99, but will be available at a special reduced price of $29.99 through May 31st with with this promo code: claritynew

Please use the Topaz link below when going to the Topaz Labs site.

http://www.topazlabs.com/705.html

I’m an affiliate of Topaz Labs and earn a small commission on any sales made through my referral link which helps me offset the cost of producing SpeedDemon2.

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Texture Tuesday

Posted on April 2, 2013 by Nick Roberts

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These images are detail shots of the massive nuts that are at the junction of the bridge spans. The nuts are at least 12 inches in diameter and when I first noticed them I wondered how big the wrench must have been that was used to tighten them. They are visible at the ends of each bridge span where it connects to the next span. They are down behind the curb; you can also see that the handrail looks different where it goes past them.

These images are single exposures that were first tone mapped in NIK HDR Efex Pro 2 them taken into Color Efex Pro 4 where I used the detail extractor preset to emphasize the texture on the surfaces. I then returned them to Aperture 3 where I adjusted vibrance, contrast and sharpening.

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This image went through the same post processing routine as the one above. These colors are all there it just takes opening your mind and eyes to see them when you are photographing them. I don’t change the colors in my images but I do enhance their luminance when I get them into my digital darkroom.

The next time you are up on the Big Four Bridge take a look at these connectors. If you bring your camera try to remember that there is more to shoot on the Big Four Bridge than sunsets and bridge architecture; look for images in the textures and juxtapositions of surfaces that are all around you.

Speeddemon2 Photography

Fine Art Photography

Tag: luminance

Focus on Fireworks

Louisville’s Downtown Bridge Is Underway

Texture Tuesday