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HDR photography
Jan 22, 2018 15:39:58 #
rmalarz wrote:
I tend to agree with Ansel Adams, with respect to HDR, "those who bracket don't really know what they are doing".
--Bob
--Bob
To the contrary, film photography has a far greater dynamic range than digital camera censors are capable of achieving. Most digital cameras are only capable of capturing 6 f-stops of light without artificial light added. Digital photographers that know what they are doing are knowledgeable of this limitation and by bracketing we are able to capture detail in the whitest whites and the darkest blacks without flash. We are able to produce images without harsh flash shadows etc., the result is a photo exactly as your eye sees the view. Instead of artificially burning and dodging film, we are able to do the same thing with HDR and images on layers in Photoshop—yes we absolutely know more about photography than the rookie snapping a single picture.
Jan 22, 2018 15:45:30 #
lamiaceae wrote:
The Excel - Image video was interesting but does not explain how to actually do anything with the concept presented. The math was intriguing. Perhaps actual instructions can be found elsewhere!
You can find tutorials on Utube that will guide you in every facet of HDR photography and technique. Hope you have a good Gitzo or Right Stuff Tripod. It will become your best piece of equipment. Good Luck and have fun.
Jan 22, 2018 15:53:56 #
TheDman
Loc: USA
Brent Rowlett wrote:
Most digital cameras are only capable of capturing 6 f-stops of light without artificial light added.
???
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Jan 22, 2018 16:02:55 #
Brent Rowlett wrote:
To the contrary, film photography has a far greate... (show quote)
https://petapixel.com/2015/05/26/film-vs-digital-a-comparison-of-the-advantages-and-disadvantages/
Jan 23, 2018 17:57:39 #
rgrenaderphoto wrote:
3 exposures +- 2 stops. Set your Nikon for Contin... (show quote)
Unfortunately, with the "semi-pro-level" cameras from Nikon (D200/D300 series/D500/D800 series and the D700) you are only allowed 1 stop between exposures. So to get an HDR image that is based on normal exposure + or - 2EV, you must shoot five exposures. This (lack of a) feature has been a pain in my butt for many years.
Jan 23, 2018 18:01:45 #
Try reading Monochromatic HDR Photography by Harold Davis. He shoots almost everything in COLOR, processes the image, then converts to black & white before printing. He explains the concepts used and both how and why they work in very good (but understandable) detail. I have both used the HDR process and taught the basics in the classroom, but the books by Harold Davis taught me a lot and he had a lot more examples than I that I did.
The attached waterfall image was processed for detail in the shadows using the HDR process. Without HDR the rocks and trees at the botom left are essentially underexposed almost to black. Where the sunlight is visibly hitting the rocks and water are essentially unchanged from what my light meter recommended.
The HDR process allows you to successfully print a wider range of tones than your sensor can record in a single exposure.
The attached waterfall image was processed for detail in the shadows using the HDR process. Without HDR the rocks and trees at the botom left are essentially underexposed almost to black. Where the sunlight is visibly hitting the rocks and water are essentially unchanged from what my light meter recommended.
The HDR process allows you to successfully print a wider range of tones than your sensor can record in a single exposure.
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