Outdoor Ontario

Photography => Equipment and Technique => Topic started by: newfoundlander61 on August 19, 2011, 04:21:14 PM

Title: Single Shot HDR
Post by: newfoundlander61 on August 19, 2011, 04:21:14 PM
i guess you can call this a single shot HDR, played around a bit on my MacPro Laptop with IPHOTO/Preview/HDRtist to get this single shot result. This is my first attempt with this technique, it appears to be HDR like :)

(http://farm7.static.flickr.com/6074/6060117622_cf7f07e058_b.jpg)
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Post by: Michael Tam on August 20, 2011, 02:01:38 PM
HDR (High Dynamic Range) is all about exposure latitude in digital photography.  It has the most application in landscape photography where the differentials of EV between various components of the picture are much greater than what the camera sensor can record.  Whereas in the conventional method with the use of split neurtral density filter system to control the contrast gradient, in the post-processing route with the use of HDR software by blending of bracketed exposures into a single photograph.

I found this article most illuminating in understanding the use of HDR based on Ansel Adams' (the greatest landscape photograher) work in tonal exposure in the Digital Zone System:

http://www.outdoorphotographer.com/how- ... ystem.html (http://www.outdoorphotographer.com/how-to/shooting/the-digital-zone-system.html)

Good birding and photography.
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Post by: Moira on August 20, 2011, 06:16:36 PM
It gives the lettering a cool effect - almost embossed.  I like it.
Title: HDR reference
Post by: Michael Tam on August 23, 2011, 10:26:03 AM
For those who want to explore the depth of the HDR application to Landscape Photography, I came across this handbook which may be very informative:

http://www.hdrlabs.com/book/index.html (http://www.hdrlabs.com/book/index.html)

Good birding and photography.
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Post by: Michael Tam on September 08, 2011, 11:11:54 AM
HDR is an invaluable post-processing tool for landscape photography where the dynamic range exceeds that of the sensor capability.  There are many softwares available in the market to assist with this process.

The following article is very informative to learn the best use of the HDR post-processing tool:

http://www.outdoorphotographer.com/how- ... f-hdr.html (http://www.outdoorphotographer.com/how-to/photoshop-and-other-software/making-best-use-of-hdr.html)

Good birding and photography.
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Post by: denis on September 08, 2011, 06:58:02 PM
excellent advice and tips here,and i,m sure going to order the book.i,ve started dabbling in HDR myself,and i see the possibilities are endless. here,s one taken over the winter.the boardwalk at lyndy shores.taken at about 6.30-7.00 a.m.
processed in photomatix.
(http://farm6.static.flickr.com/5242/5307951599_6eff06e7c5_b.jpg)
3 exposures bracketed with 1 stop.sure is fun especially when birding slows down.
Title: HDR Tutorial
Post by: Michael Tam on September 09, 2011, 01:45:05 PM
For those landscape photographers who wish to indulge themselves with the HDR possibilities, this is the "ultimate" step by step Free Tutorial to help one through the process, except for the software that processes the photos, that is not free  :twisted:  :

http://www.stuckincustoms.com/hdr-tutorial (http://www.stuckincustoms.com/hdr-tutorial)

Good birding and photography.
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Post by: lovemypt on September 09, 2011, 03:01:32 PM
not to take away from Paul's picture but Denis's picture is awesome and would make a great blowup for the wall
Title:
Post by: Michael Tam on September 09, 2011, 03:52:12 PM
There are different HDR software in the market, with Photomatix being a popular choice amongst landscape photographers:

http://www.hdrsoft.com/index.html (http://www.hdrsoft.com/index.html)

The following website offers review of various software currently available:

http://hdrsoftware.com/hdr-software-reviews (http://hdrsoftware.com/hdr-software-reviews)

Good birding and photography.
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Post by: newfoundlander61 on September 09, 2011, 04:02:35 PM
Wow Denis, great shot. Perfect subject for HDR.
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Post by: denis on September 09, 2011, 07:47:36 PM
thanks for the comments guys.excellent tips and links,michael.paul: i,ve tried several software programs,and photomatix seems to work best for me anyhow.i,m dying to try nik,s version,soon i hope.i havent had any sucess,with single image HDR,as i found it cant pull out the full dynamic range without introducing all kinds of artifacts.i always have a sturdy tripod with me and,and a cable release to facilitate things.the thing for me to do now,is to take several images at 1 or 2 stops apart to combine to get the full dynamic range especially if the image has a lot of contast in it.
Title:
Post by: Michael Tam on September 10, 2011, 10:02:58 AM
As a proponent of the filter system, I adopt the shooting discipline from the film days, that is "do it right the first time".   It has been said that much of the contrast gradient issue can be corrected during post-processing with HDR software such as Photomatix, dependent on one's preference in the use of time in the field vs in front of the computer.  For myself, it is the field.

For example, during a one week photo workshop in Arizona & Utah, one could cover in excess of 48 GB of memory card, producing over 4,000 exposures.  Since it is all landscape photography with frequent contrast gradient issue, one could envision the strain on the cervical and lumbar region during the entire process in front of the monitor :)

This further article will assist in creating a filter system for Landscape & Nature Photography to augment the HDR post-processing:

http://singhray.blogspot.com/2010/03/es ... lling.html (http://singhray.blogspot.com/2010/03/essential-filters-for-controlling.html)

Good birding and photography.
Title:
Post by: denis on September 10, 2011, 08:35:34 PM
absolutely right on michael.i have a set of ND graduated filters in 1,2,and 3 stop,and filter holder,which i,m hoping to experiment with,if i can only stop birding for awhile. LOL
Title:
Post by: Michael Tam on September 13, 2011, 03:44:32 PM
For further understanding in the issue of a filter system, please read a thread with extensive discussion in this forum below:

http://outdoorontario.net/birds/phpBB/v ... 03&start=0 (http://outdoorontario.net/birds/phpBB/viewtopic.php?t=3803&start=0)

Good birding and photography.
Title: Re: Single Shot HDR
Post by: Michael Tam on November 18, 2011, 01:31:49 PM
To further understand the capturing of the darker tonality of shade area of an image through the HDR processing, the following article is very helpful to explore this issue:

http://www.outdoorphotographer.com/how- ... raphy.html (http://www.outdoorphotographer.com/how-to/photoshop-and-other-software/the-dark-secret-of-digital-photography.html)

Good birding and photography.
Title: Re: Single Shot HDR
Post by: BoboBird on November 23, 2011, 03:14:25 PM
I too have been playing about with this too.

Here are 3 done the other day. Just a teeny weeny bit of hdr to give the flower a neonish glow. All are 1 shot.

(https://lh3.googleusercontent.com/-TsfebD4gjug/Tr-buqS9hFI/AAAAAAAADpE/1dyVxxUmsIQ/s800/20111112_0773-0774-H-3.jpg)

(https://lh5.googleusercontent.com/-0Pxri9iSfJI/Tr-bv2PeWzI/AAAAAAAADpM/iyZSbIVWk24/s800/20111112_0792-0793-H-2.jpg)

(https://lh5.googleusercontent.com/-FUt3D0NGFMs/Tr-btJblo1I/AAAAAAAADo8/_nz24T7fAak/s800/20111112_0769.jpg)
Title: Use of HDR
Post by: Michael Tam on October 01, 2012, 05:08:44 PM
Remember reading an article published in December, 2010 about the "Best Use of HDR" by an experienced professional landscape and nature photographer, there appeared harsh receptions in general about the over-use aspect of this post-processing.  Please read to refresh your memory below:

http://www.outdoorphotographer.com/how- ... f-hdr.html (http://www.outdoorphotographer.com/how-to/photoshop-and-other-software/making-best-use-of-hdr.html)

So there is such practice in photography as "too much of a good thing".  Here is the epiphany by the same author about this realization.  One can see a humble mind allows us to move forward from lessons in life, even in photography:

http://www.outdoorphotographer.com/how- ... -tale.html (http://www.outdoorphotographer.com/how-to/shooting/digital-pitfalls-a-cautionary-tale.html)

One good news is that a basic HDR process is emerging as a built-in function in the newest DSLRs coming onto the market.

Good birding and photography.
Title: Re: Single Shot HDR
Post by: Brian Bailey on October 19, 2012, 11:24:59 PM
I have experimented with HDR a few times with mixed results.  I found a layer mask technique on the Luminous Landscape (http://www.luminous-landscape.com/tutorials/digital-blending.shtml) that is ridiculously simple and can be very effective. In this example, I got better results than HDR or a painted mask in a fraction of the time.
(https://lh3.googleusercontent.com/-9-Q7HCWzY5Q/TofY0KSPjUI/AAAAAAAACoM/jryBGkroI9s/s800/Looking%2520East.jpg)
I'm not going to pretend to understand exactly how it works, but it does. You just follow the steps (in Photoshop) and it gives you the ability to tweak the effect to your taste.

BB
Title: Re: Single Shot HDR
Post by: Michael Tam on October 20, 2012, 10:06:34 AM
In digital photography, post-processing replaces the complex darkroom techniques used in Ansel Adams famous landscape images.  As a result, various softwares were developed to address specific needs of post-processing.

To address the tonal dynamic range of an image, the traditional Photoshop layer masking is one of the routes available.  Assuming one does not own Photoshop CS-5, the more common and less expensive software application is undoubtedly Photomatix through the HDR route (http://www.hdrsoft.com/ (http://www.hdrsoft.com/)).  I came across this article that may be helpful to master this invaluable process:

http://www.outdoorphotographer.com/how- ... scape.html (http://www.outdoorphotographer.com/how-to/photoshop-and-other-software/hdr-for-the-landscape.html)

Good birding and photography.
Title: Re: Single Shot HDR
Post by: Michael Tam on October 26, 2012, 10:11:49 AM
For those who are familiar with Photoshop CS series software, this previously posted article described the workflow through a combination of Lightroom and Photoshop processing to address the dynamic range issue or exposure blending:

viewtopic.php?f=8&t=9715 (http://outdoorontario.net/birds/phpBB/viewtopic.php?f=8&t=9715)

Good birding and photography.
Title: Re: Single Shot HDR
Post by: Michael Tam on December 02, 2012, 04:07:57 PM
In the taming of the light, or otherwise known as dynamic range, the old trusted path in the use of graduated ND filters together with darkroom manipulation during film development was pioneered by the father of Landscape Photography, Ansel Adams.  The digital era evolved into a new path in the use of the HDR process through muilple bracketed exposures.

However, there is the judicious choice between the use of the filter path or the HDR path for a particular situation, as described in the following article:

http://www.outdoorphotographer.com/how- ... raphy.html (http://www.outdoorphotographer.com/how-to/shooting/full-dynamic-range-photography.html)

Good birding and photography.
Title: Re: Single Shot HDR
Post by: Michael Tam on December 28, 2012, 10:03:00 AM
From the perspective of the oldtimers during the film days with the mantra of "do it right the first time", the use of HDR is a slippery slope into unnatural reality if diligence is not exercised in its jurdicious usage.  The following article offers thoughts into this aspect of image making:

http://www.outdoorphotographer.com/colu ... t-art.html (http://www.outdoorphotographer.com/columns/photo-adventure/keeping-it-real-or-calling-it-art.html)

Good birding and photography.  Happy New Year.