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Color Temperature, Balancing for Different Light Sources

Digital Photo Academy and LivinginHD present a free monthly series of photography webinars on LivinginHD.com. Your host, John Bentham answers many questions live during the webinars. On January 11, 2011 DPA and LiHD presented a Webinar on Color Calibration co-hosted by Josh Fischer, the Sales and Education Manager at Datacolor, Spyder (datacolor.com). Josh demystified color calibration and tackled the technical questions specific to Spyder products. As John is keen to point out, Josh kept him out of trouble with regard to color calibration. Additional questions, answers and tips are posted here on digitalphotoacademy.com where you can also view the archived webinars. Photo by Russ Burden, DPA instructor Denver Color temperature in degrees Kelvin. The Kelvin scale measures color temperature in wavelength of light, much like Fahrenheit or Celsius measure temperature. We typically associate heat (warmth) with high temperatures. Thus the Kelvin scale is somewhat counter intuitive to F or C in that the higher the temperature in Kelvin the cooler the color appears. Photos by Russ Burden, DPA instructor Denver showing the effects different White Balance settings would produce. Your digital camera, either a Point and Shoot or DSLR has Color Correction (White Balance Settings) built into the camera’s processing system. By selecting the correct White Balance for the specific light source, you are on your way to getting better color balance in your photographs. Most cameras come from the manufacturer set to a default white balance of AWB (Auto White Balance). This does a pretty good job of rendering color in many situations. When you run into difficulties you will get better results if you take the camera off Auto White Balance and choose a specific white balance seeing for each shooting situation. The image above shows the White Balance menu on the display of a Panasonic GF1. By toggling the White Balance up or down the photographer can choose between a number of white balance options and pre-set WB filters. As outlined in the Light Source Color Temperature list below White Balance settings will vary depending on the manufacturer and specific model of your camera. Many of the settings are similar, if not identical but may have different names. A WB setting of Tungsten (named so because of the tungsten filament in the bulb itself), will in some cameras be referred to as Incandescent or Halogen. They are basically the same setting. Many cameras have multiple setting for Fluorescent bulbs as many different types of FL tubes are manufactured to produce many different color temperatures. Often cameras will have multiple settings for Fluorescent 1, Fluorescent 2 etc. You need to determine through trial and error which FL setting is best for the particular lights you are shooting under. Daylight is sometimes referred to as Sunlight or a Good Weather setting. The image below shows the various White Balance settings available on a Panasonic GF1. Notice the two settings White Set 1 and White Set 2. These are custom pre-set settings which enable you to record a custom corrected white balance to specific lighting conditions if the standard WB filters don’t give you a corrected color. The Color Temperature allows you to manually dial up or down the actual color temperature for a very accurate adjustment of color. Light Source: Color temperature in degrees Kelvin Cooler Colors (Blue) Skylight (blue sky)    12,000 - 20,000 Average summer shade    8000 Light summer shade    7100 Typical summer light (sun + sky)    6500 Daylight fluorescent  6300 Xenon short-arc    6400 Overcast sky    6000 Clear mercury lamp    5900 Sunlight (noon, summer, mid-latitudes)    5400 Design white fluorescent    5200 Daylight photoflood    4800 - 5000 Sunlight (early morning and late afternoon)    4300 Brite White Deluxe Mercury lamp    4000 Sunlight (1 hour after dawn)    3500 Cool white fluorescent  3400 Photoflood    3400 Professional tungsten photographic lights    3200 100-watt tungsten halogen    3000 Deluxe Warm White fluorescent    2950 100-watt incandescent    2870 40-watt incandescent    2500 High-pressure sodium light    2100 Sunlight (sunrise or sunset)    2000 Candle flame    1850 - 1900 Match flame    1700 Warmer Colors (Red) Color temperature in RAW format: For additional information see Russ Burden’s (DPA Denver) tip on color temperature when shooting in RAW format: http://www.digitalphotoacademy.com/Home/UserArticleCategories/UserArticles/details/params/object/6465/default.aspx Camera Charts: The chart below shows the camera menu Icons for Panasonic cameras. Other manufacturers Icon Charts are available for free download on DPA. These can be helpful in determining what specific icons represent on your specific camera. Download these here: http://www.digitalphotoacademy.com/Home/Articles/Details/params/object/4478/menu/99/default.aspx Webinar Submission Specs: All DPA students can submit photographs for inclusion in the Digital Photo Academy, LiHD Webinar, Online Photo Class Series. If you would like to submit your photographs for an upcoming webinar, read the following. Each webinar has a specific theme or topic. You can see the date and topic of the next webinar at LivinginHD.com, Tip of the Day, Online Photo Class. Note that webinars are edited and formatted days in advance, thus please submit your photos at least a week in advance of the webinar, late submissions can not be added. Photographs are chosen, and edited, for their applicability to the webinar theme, artistic and technical merit, and content length. If your photograph is NOT chosen, it will be archived and may appear in a more appropriate future webinar. Submit your photographs to info@digitalphotoacademy.com By submitting your photographs for consideration, you grant and authorize, The Digital Photo Academy, LivinginHD.com and Panasonic, the following rights: The right to use your photographs in the content and promotion of the webinar series, and for use on each company’s respective website. You further authorize your photographs may be archived online and/or in a database, and allow unrestricted internet availability of any webinars containing your photographs. You further authorize the use of your photographs in any future webinars. By voluntarily submitting your photographs for consideration you agree to the aforementioned without any legal claims, or claims for remuneration, whatsoever. You, as the photographer, retain the copyright © of any submitted photographs. The aforementioned companies will make best possible efforts to apply proper photo credit and acknowledgement with your photograph whenever possible and practical.


John Bentham′s Color Calibration Demonstration


John Bentham′s “Your Point and Shoot Camera” Free Demonstration


Shooting in Extreme Lighting Conditions, Bright Sun and Very Low Light ISO Expansion, ND (Neutral Density) and Polarizing Filters

Father Dan, a DPA student of both Hinda Schuman and Rick Wright in Philadelphia sent the following inquiry prior to shooting the annual Gettysburg Remembrance Parade. His concerns were shooting in very bright sunlight and shooting flags and candles at night. Father Dan also has some helpful advice for other students which I thought worth sharing. See his comments about attacking your subject and some of his photos below. John, I will visiting Gettysburg this weekend for the annual Remembrance Day Parade - from where I got the photo I call "flag boy" which you showed on the WEBinar and should have received a copy along with the Little Round Top B&W photo. I will probably stand in the same spot as last year. I hope to get some different angles and I want to "attack my subjects" more. Last year I stood back from the action but I know the best photos are when, like a tennis player who "rushes the net", the photographer needs to gets close to the subject. I suspect it will be a sunny day and I purchased a Number 4 ND filter. I am not sure if the number 4 ND is too dark? I do have a NC (Neutral Clear) filter which works well in most circumstances. At night, after the parade, the soldiers cemetery tombstones are lit with 3000 luminaries beside small 12 inch flags of their states and regiments.  My brother is after me to get the perfect shot. I am bringing a tripod and a cable shutter release. If you have any suggestions about how to get the shot I will appreciate a few words. A problem is that in the background there are many people walking about the grave-sites so leaving the shutter open may be good for the foreground but not the background. My best good light lens is a 50 mm F 1.8 lens. My other lens is F3.5. My camera is a full frame (35 mm) sensor. Thanks, Father Dan Photo by Father Dan McLaughlin, DPA student Philadelphia Johns reply, RE: Menu ISO Expansion Father Dan, Sounds like you have most of the issues thought out. I don’t know that youll need the ND filter. If it really is much too bright you could lower your ISO all the way. On your camera turn on ISO expansion (probably in custom settings), at the low setting it will go down to 100 ISO, instead of the factory default 200, and stop down the aperture to f11 - 16. You should be fine during the bright sun. Unless you are trying to limit depth of field in which case the ND will help, the problem being then its difficult to see through the camera. I usually use a Polarizing filter during the day instead of an ND, but the effect is similar. At night with ISO expansion turned on, you can go up to 25,600 ISO however at the cost of digital noise, a trade off. I would limit myself to 6400 max. If you begin to see the effects of Digital Noise at the higher ISO ratings you can turn to NIK Dfine noise reduction software in post production for a quick painless cure. The tripod is a good idea. If you stop the lens aperture down (f8-11) you can dial in such a long shutter speed, approx 30 sec – 2 min, (youll have to experiment here), you can make any moving people disappear altogether, could be an interesting effect. Photo by Father Dan McLaughlin, DPA student Philadelphia See more of Father Dans photos here: http://gallery.me.com/frdmcl#101038&bgcolor=black&view=grid Also check out the following night, tripod and exposure tips: http://www.digitalphotoacademy.com/Home/UserArticleCategories/UserArticles/details/params/object/18198/default.aspx http://www.digitalphotoacademy.com/Home/UserArticleCategories/UserArticles/details/params/object/13830/default.aspx http://www.digitalphotoacademy.com/Home/UserArticleCategories/UserArticles/details/params/object/13836/default.aspx http://www.digitalphotoacademy.com/Home/UserArticleCategories/UserArticles/details/params/object/15027/default.aspx http://www.digitalphotoacademy.com/Home/UserArticleCategories/UserArticles/details/params/object/18170/default.aspx http://www.digitalphotoacademy.com/Home/UserArticleCategories/UserArticles/details/params/object/18170/default.aspx


Buying a Laptop VS Desktop; Laptops in the Field; Image Back-Up

With any Laptop the considerations are size, weight, speed, memory and cost. A smaller screen and slower processor with less RAM will significantly reduce the cost but then it’s difficult to use as a primary computer. A small computer screen is really only useful as a carry around reference on location type of computer. Unfortunately one computer, much like any one camera, does not do everything. You need to weigh cost and size against portability etc.


Chromotherapy

I recently came across an intriguing word I never encountered - chromotherapy. It dates back to ancient European and Asian culture and uses color to heal. It’s still used today in alternative medicine. In that color is such an integral part of photography, the word piqued my curiosity. © Russ Burden Already knowing that specific colors convey specific psychological feelings and evoke certain moods, it made me think more deeply about the relationship. While I’m not convinced that looking at a given color will rid myself of a headache, there are givens when it comes to the psychology of color and how it impacts the way a viewer perceives an image. Therefore it’s beneficial that you, as a photographer, learn its psychological impact to help convey a mood in a photograph. Orange: Fun / Energy - Orange tends to stimulate activity and one’s appetite. It also connotes a feeling of change - think fall color. If its hue leans more toward the red side, it creates excitement. If it leans more toward the yellow, it’s more tranquil.


DPA Webinars, Lighting Against a White Background, How to clean it up with NIK

Digital Photo Academy and LivinginHD present a free monthly series of photography webinars on LivinginHD.com. Your host, John Bentham answers many questions live during the webinars. Additional questions, answers and tips are posted here on digitalphotoacademy.com where you can also view the archived webinars. Photo by John Bentham, DPA instructor, New York Top Image – Original Bottom Image – NIK Processed Looking for a quick, painless and fast way to add some punch to your portraits? Who isn’t? The samples on this page started out as portraits shot against a white background. Shot with relatively simple lighting, one or two flash heads off camera to produce directional light. The trouble with shooting against white is there is often a bit of background flare to contend with. Flare is light that bounces back off the background to come back into the lens. The result can be washed out and muted colors in your subject. To avoid this photographers often struggle with the lighting to achieve just the right balance between light on the subject, not too much to produce flare, and yet still maintain a clean white background. Easier said than done. Sometimes there isn’t enough time on a shoot, depending on the subject and situation to tweak it just right. This is where NIK Viveza 2 Software comes in. Photo by John Digilio, DPA student, New York Left Image – Original Right Image – NIK Processed In a simple fix you simply open the image in Photoshop (or Lightroom) and click Viveza 2 Plug-In. Once the program opens you adjust a few sliders to make a Global adjustment, adding some Structure, Contrast, Saturation. Boom ... You’re done, what could be easier and the results look great. Photo by John Bentham, DPA instructor, New York Left Image – Original Right Image – NIK Processed


John Bentham′s Lighting with a Still Life Demonstration


Marketing your Images, Websites, Business Cards and Postcards

Digital Photo Academy and LivinginHD present a free monthly series of photography webinars on LivinginHD.com. Your host, John Bentham answers many questions live during the webinars. Additional questions, answers and tips are posted here on digitalphotoacademy.com where you can also view the archived webinars. Thinking about selling your prints on-line? Today there are many resources to enable and facilitate this. One option is to launch your own web site and market prints directly from your own self managed web venue. A potential way to earn extra money from something you enjoy and already do. New York DPA student Brett Whysel has done exactly this and makes additional income from selling his beautiful Black and White bridge prints to collectors while also donating a portion of proceeds to charity. Visit: http://whysel.smugmug.com/ Photo by Bart Baldwin, DPA Instructor, Charlotte, NC The great Nascar images above by DPA instructor Bart Baldwin, based in Charlotte, NC are stunning images of great popularity that generate vast interest that could easily be marketed to race fans, automotive companies, auto shops, magazines and calendar printers. With a little help from post production software as seen in the before and after images provided by Bart the dynamic feel of being at the track, in the pits really comes forth. People who love race cars want to get this close to the cars, if fans can’t get a pit pass it’s up to the photographer to get them closer. Marketing your images to postcard, greeting card companies and outlets: There are a number of sites that cater to photographers and illustrators, or fine artists that provide a forum or outlet for independent artists to sell their work as reproductions on-line. I am a member of Fine Art America but I don’t sell prints through them. I joined up to promote some events, galley shows and a Tribeca Arts Festival I was exhibiting in. I don’t think its a bad idea for making money. It may be a bad idea for being taken seriously as an artist in some circles, primarily the art gallery market. If your prints or drawing were available on one of these site it could undermine your credibility in the Art Gallery market. But if you′re not really in that market (IE with gallery representation) maybe it doesn′t matter. And in some cases photographers have been “discovered” on Flickr and similar sites. Who knows, the mass market and greeting card thing worked for William Wegman. He started out as an fine art photographer in the 1970s, now he’s a very successful photographer primarily thought good marketing and vast merchandising (cards calendars etc). If you don’t recognize the name William Wegman, you will surely recognize his ubiquitous images of lanky, svelte weimaraner hound dogs in comical very-people-like poses and situations. Photo by Bart Baldwin, DPA Instructor, Charlotte, NC As with any venture, where people are licensing your images I would caution you check the fine print with regard to copyright and reproduction rights etc. Make sure you as the photographer own and retain the copyright and reproduction rights. Just as important in the event you cancel your membership, confirm the site or organization can NOT continue to sell your images, or continue to use your images to promote their site etc. Make sure people can NOT download large res files without payment because nefarious or perhaps uninformed web surfers will just go ahead and print the images for themselves, or use them in ads, websites etc. It’s a good idea to watermark your images if possible to prevent this. I don’t watermark the photos on my site, www.johnbentham.com and I’ve only encountered a few minor web usage infractions over the years, which is not to say more haven’t occurred. I’m just blissfully ignorant of them. Many people are not aware they need to pay, or even ask permission to re-post your photos once an image appears on the web, many people assume if something is online it resides in public domain. Photo by Rick Gerrity, DPA Instructor, New Jersey A wonderfully nostalgic and striking photo above of a classic 1960 Cadillac Crown Royal hearse, shot on location as part of a DPA advanced workshop by New Jersey DPA instructor Rick Gerrity is also a shot that could appeal to the auto and car collector market, the outlets for which are innumerable. Rick has captured a distinctly unique angle of a unique vehicle, essentially nailing the trick to a lot of good photography. With a little touch up in Photoshop and some dynamic and intense effects added using NIK Viveza 2 software the shot leaps off the screen ... or greeting card, or calendar, or poster, or web site ... well you get the idea. Photo Hosting and Print Sales Web Sites: These are primarily for photography but if you are an artist or illustrator you could just as easily upload digital files of drawings. You post your photos online, people buy prints online, the site prints and sends the prints (fulfillment), you receive a percentage of the money. Some of these sites have a monthly fee, some are free. Flickr also has a deal going with Getty Images, one of the largest photo syndication agencies, that allows Getty to approach Flickr photographers for independent licensing of images for stock sales brokered by Getty. Photo Hosting Sites: Flickr: www.flickr.com Imagekind: www.imagekind.com Fineartamerica : www.fineartamerica.com Smugmug.com : www.smugmug.com Artchain : www.artchain.com Artistsregister : www.artistsregister.com Digibug : www.digibug.com Zenfolio: www.zenfolio.com Collages : www.Collages.net Foliolink : www.foliolink.com Bigfolio : www.bigfolio.com Creativemotiondesign : www.creativemotiondesign.com


Family Group Portraits

Family portraits are important keepsakes for many reasons. They provide a baseline from which to measure the growth of your kids, they provide memories as you get older, and the event of having them made provides bonding. © Russ Burden To create a professional look, be sure to pay strict attention to what you have the subjects wear. Be sure to create a theme regarding the color and style of the clothing. If everyone is wearing something totally different, the look is not cohesive. On the other hand, if there′s a theme, the look is harmonious. Have some fun with the poses you create. Instead of lining everyone up on the same plane, place your subjects in a way that′s not chaotic yet allows them to have some fun. The end result will be images with great smiles. © Russ Burden Be sure to light the subjects uniformly. This may mean finding open shade, using a reflector to fill in harsh shadows or using a flash to accomplish the same as the reflector. If any of the subjects have bright hotspots of light, move the group so that each person is evenly lit.


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