Posts tagged "High Dynamic Range Photography"

SUPER REALISTIC HDR PHOTOGRAPHY TIPS

Intel’s Mike Fard shares tips on how to use High Dynamic Range Photography to raise photos. He talks about equipment, software, workflow and the benefits of carrying a good laptop to emanate images that really constraint what he saw and felt when roving to places like Italy and San Francisco.

HDR TIME-LAPSE PHOTOGRAPHY

Beautiful time-lapse photography is formidable enough to achieve, but attempting it in HDR (high energetic range) photography adds another covering of complexity as was finished here successfully in France (Normandy & Britany). This equates to the photographer has to take bracketed photos at different bearing levels for each sold frame, and then post-process those bracketed sets into HDR in a way that the lighting stays unchanging so something called “flickering” does not start due to fast changes in lighting in in in in between the video frames. This new video has combined a lot of contention in in in in between photographers because it is such a formidable technique to master. Take a impulse and enjoy:

This video was combined by Tanguy Louvigny on Canon 400D and 60D digital SLR cameras along with a Sigma 10-20 mm lens. Louvigny palm made a 3 pivot suit control supply to control the delayed transformation of the camera. The HDR print sets were tone-mapped with Photomatix (see below). The post-processed print sets were edited into the video using Adobe Premiere & After Effects CS5. And we think Louvigny also privately stoical the song for this video using a Roland mc-808 Sampling Groovebox.

I was privately blown divided by the law suit supply he combined for this project. It’s coming is pretty intimidating to contend the least. It is formed on Tetrix Robotics (tetrixrobotics.com), interestingly enough tranquil by mindstorms section – a multiplication of LEGO (mindstorms.lego.com), and automatic in Robot C (robotc.net). Here it is on location:

Custom Rig for HDR Time-lapse Photography

HDR Time-lapse Motion Control Rig

Front of the HDR Timelapse Motion Rig

Setting Up the Rig to Capture a Sunset HDR Sequence

Questions Answered by the Photographer:

• Are you using a 3 joint shot or more?

3 shots sequences, 3 f-stops spacing on 60D, it’s enough to get enough energetic operation in most situations (well, more would be better but would need more time in in in in between moves).  The suit control has to stop in in in in between each pierce to give enough time for the bracketing process to finish, it’s law automatic to do so…

• Can you yield more sum and price report on your extraordinary suit rig?

A lot of time and bid Seriously it costed 1 Tetrix pack starter set + ressource set + Tetrix encoders + mindstorms set + some aluminium rods and 2 x 547b tripods to resolutely insert them (and a camera !) So all enclosed may be 2k € or so (those kits are way more costly in Europe than in the US !)

• Can you exhibit your Photomatix 4 settings to equivocate flicker? I find it tricky, infrequently it functions well with nearby to default settings, but many times flutter is too strong. Can you share?

Sure ! we have no undiluted resolution to equivocate flicker, but here are my (usual) settings in Photomatix:
Strength 70
Color sat 80
Luminosity 0
Microcontrast 1.0
White point vary, usualy around 0,800%
Black point rsther than low, 0.030% or so
Micro-smoothing 5.5 when too much noise
I try to minimize flutter when shooting, and use Msu deflicker to heal serious flutter in post, that’s it !

• How long on normal does it take to constraint a process on location?

Each take is about 1 1/2 hours genuine time dense in 10 seconds or so.

•  How long did it take you to emanate this extraordinary video?

 It’s a gathering of assorted shots, so let’s contend it took me a year!

•  Would you have any tips for us per nightfall and sunrises?

 No sold tip for sunsets solely bearing bracketing as it helps means good sky liughtness changes…i do not fire many sunrises, much more formidable to grasp in my opinion.

•  How long did it take to set up your law rig?

 Worked a month on the first derrick chronicle with lots of hearing and errors, but it wasn’t stout enough so i reworked it to make this 3 pivot slider (this was the easy part)!

•  Did you have to take 3 bracketed shots into in to Photomatix each time you were creation a support or was there a bulk process to you do it. Meaning, in sequence to emanate a second of video at twenty-four frames, did you have to move 3 bracketed photos into Photomatix twenty-four times in sequence to emanate one second?

 Yes thirty times for one second of video, but programmed with collection mode estimate in Photomatix

Photomatix HDR Processing Software:

Photomatix is the program of preference for most veteran HDR photographers. We were means to prepare a bonus to PictureCorrect readers on any chronicle of their software. For 15% off, recollect to use the Coupon Code “PICTURECORRECT” at checkout. The program can be acquired Here on the Photomatix Site

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HDR PHOTOGRAPHY WITH THE POINT AS WELL AS SHOOT CAMERA

If you are wanting to enhance your skills with a point and fire camera 0 is more appealing than High Dynamic Range Photography or HDR. It’s a blast!

OK! What is it? It involves mixing customarily 3 or more photos, of the same subject, taken at 3 different bearing values and then mixing them.

"Rome wasn' built in day, Nor was anything else..'" prisoner by Akshay Kumar (Click Image to See More From Akshay Kumar)

What’s so cold about this? Think about receiving a print inside of a barn, aiming your camera toward a window on a splendid balmy day.

You might collect up some item in your print from inside the building, but anything from outward the window will be way too splendid and indistinguishable. In detailed conditions this equates to that the item outward the window would be “blown out”.

When you are in this make up your eyes regulate to details, not only what’s inside, but also to sum outward the structure. Simply, a camera cannot miscarry all these sum at the same time with one normal exposure. This is where HDR Photography comes in!

So, If you can take one bearing (normal exposure), a second bearing (over exposure), and a third that is (underexposed) and then mix them you will have all the sum that the eye can perceive. Does this make sense?

Then using a special module program, all 3 exposures are then processed together, and a accomplished HDR print will outcome with smashing item and tinge peculiarity that could not be accomplished with just one normal exposure. You’ll be impressed!

With a elementary point and fire camera and as long as it has an Exposure Value (EV) scale you are in luck. Check your primer on how to move up the meter.

On most P&S cameras, your scale will have prove a 0 environment (0) and to the right of this, the overexposed side, will review +1 and +2. The underexposed side of the (0) will review -1 and -2.

Also, if you use a P&S camera you contingency use a tripod to fire HDR. It’s almost unfit to palm reason a camera, shift settings and ideally line up the shot again but some sort of distortion. The camera contingency be hold solid as a rock!

Turn off all the involuntary stuff, e.g.; involuntary flash. Make sure to take the first shot at an EV environment of 0. Go to your EV meter, but relocating the camera and dial in +2. Press “OK’ on the menu. Take the shot.

"Juz' Anotha' Deserted Street.." prisoner by Akshay Kumar (Click Image to See More From Akshay Kumar)

Once again go back to the EV meter, but relocating the camera and dial in -2. Press “OK’ on the menu and take the shot. Remember to lapse your EV scale back to 0 when finished.

You now have a print taken with 3 different bearing values and are ready to be processed to modify them to HDR. There are copiousness of giveaway hearing HDR module programs for you to try. It’s value questioning to find out which one is for you and to see if High Dynamic Range Photography is “your crater of tea”.

About the Author:
Thom Richards is an pledge photography who loves Oregon and all the smashing print ops it offers! Please stick on me at http://oregon-photography.blogspot.com/.

HDR Software Coupon for PictureCorrect Readers:

Photomatix is the module of preference for most veteran HDR photographers. Photomatix was good enough to yield a bonus to PictureCorrect readers on any chronicle of their software. For 15% off, recollect to use the Coupon Code “PICTURECORRECT” at checkout. The module can be acquired Here on the Photomatix Site

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SELECTIVE BLENDING IN HDR PHOTOGRAPHY

A character of photography that is flourishing fast in recognition is HDR Photography. To be defined, HDR (High Dynamic Range) photography is photography that captures a wider and more healthy operation of colors and intensities. This allows for photos to crop up as the tellurian eye essentially sees them rsther than than only permitting a part of a photograph’s coloring to crop up true. For example, for the print shown below, if taken but using HDR you could possibly have the structure be well unprotected and have the sky distant too bright, or the sky well unprotected and structure be silhouetted. With HDR you would be means to have both well unprotected as you healthy see it.

Completed HDR Photo After Selective Blending

A renouned way of formulating an HDR print is to combine mixed photos of incompatible exposures together, so this educational will cover that process in display how the print on tip of was created.

Step 1. Bracketing your shot

Bracketing is a beneficial apparatus to use for almost any sort of photography, but is necessary in HDR photography. Bracketing is receiving several photos of varying exposures of the same theme in sequence to emanate a correct bearing for each component in the shot. Bracketing is good to use in almost any conditions and character of photography, just so you have as many options to select from when you’re editing. Some cameras have a built in bracketing feature, but if not, it is easy to manually joint as well. For this image, there are really only 2 categorical elements, the sky and the building. First, one print was taken to get a correct bearing of the sky:

Slight Under-Exposed Image

This was taken with a faster shiver speed in sequence for the skies healthy colors to show. The sky looks good in this photo, but as pronounced earlier, the structure is utterly silhouetted. Keeping the camera in the expect same on all sides (tripods are rarely recommended) a second print was taken to get a correct bearing of the building:

Slightly Over-Exposed Image

This print was taken with a slower shiver speed in sequence for the structure to be well lit. Now the structure looks much better and our sky is blown out. The subsequent step will be merging these two photos together to get the best of both.

Step 2. Merging the Photos

The merging of your photos can be finished in a module like Photoshop, which is what we will use in this tutorial. First off, both photos are brought into Photoshop.

Merging Bracketed Images in Photoshop

Then the print with the bearing for the structure is changed over on tip of the print with the bearing for the sky.

Arranging Layers in Photoshop

Here is where the merging of the photos essentially takes place. In the tip photo, the sky is what is blown out and over exposed, so the sky will be private from this photo. Once the overblow sky is removed, the scrupulously unprotected sky in the covering subsequent will be revealed. To do this, the tip covering is selected, then the captivating lasso apparatus is comparison and the finish sky is selected.

Selecting and Isolating the Sky

Then this preference is deleted by simply dire the undo key.

Deleting the Sky from the Top Layer

Then with some one more modifying in Lightroom, the print was complete.

Completed HDR Photo After Selective Blending

HDR photography is a good way to grasp a healthy seeking print of a environment that might not concede for it with customary methods. Some HDR photographs are combined by merging a dozen otherwise unprotected photos, nonetheless these photos lend towards to look a bit unreal. To grasp a healthy look using HDR, use mediation in how many photos you mix together and leave room for healthy shadows.

About the Author:
Nicholas Moeggenberg is a photographer from Cincinnati, OH and runs the photography contest – May the Best Photo Win.

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