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 New YongNuo YN560II Flash Light for Canon Nikon Olympus Pentax $69.99 Time Remaining: 24d 19m Buy It Now for only: $69.99 Buy It Now | Add to watch list |
 Nikon Speedlight SB 29 Ring Light Macro Flash Complete W accessories $175.00 Time Remaining: 5h 54m Buy It Now for only: $225.00 Buy It Now | Bid now | Add to watch list |
 Batterr Powered TT520 Digital Camera Electronic Flash Speedlight $82.44 Time Remaining: 2h 46m Bid now | Add to watch list |
 YongNuo YN560II Flash Light for Canon 5D 7D 60D 50D 550D Nikon Olympus Pentax $59.99 Time Remaining: 25d 17h 12m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 Very Clean Nikon Speedlight SB 29 Ring Light Macro Flash with case and box NICE $199.99 Time Remaining: 1d 5h 16m Bid now | Add to watch list |
 Sigma MACRO EM 140 DG Ring Light Macro Flash for Nikon $199.00 Time Remaining: 1d 17h 10m Bid now | Add to watch list |
 YONGNUO YN 460 Flash Speedlite for Nikon D90 D80 D70s D60 D40 $39.99 Time Remaining: 4d 14h 57m Buy It Now for only: $39.99 Buy It Now | Add to watch list |
 48 LED Macro Ring Video Camera Light Flash Lamp $26.99 Time Remaining: 2h 13m Buy It Now for only: $29.69 Buy It Now | Bid now | Add to watch list |
 JY 670 Flash Strobe Macro Close Up Ring Nikon D800 D7000 D700 D3 D90 D200 D300 $96.99 Time Remaining: 15h 17m Bid now | Add to watch list |
 Yongnuo YN 460 Flash Speedlite for Nikon D90 D80 D70s D700 D300 D300s D200 D100 $38.99 Time Remaining: 9d 20h 43m Buy It Now for only: $38.99 Buy It Now | Add to watch list |
 JY 670 Flash Strobe Macro Close Up Ring Canon 60D 5D MARK II 50D 7D for MR 14EX $96.99 Time Remaining: 1d 3h 7m Bid now | Add to watch list |
 Sigma EM 140 EM140 DG Macro Ringlight Flash for Canon E TTL II NEW $379.00 Time Remaining: 17h 24m Bid now | Add to watch list |
 YongNuo YN 460II Flash Speedlite For 5D II 450D 550D 7D $42.99 Time Remaining: 15d 17h 26m Buy It Now for only: $42.99 Buy It Now | Add to watch list |
 Canon MR 14EX Ring Light Macro Flash $360.00 Time Remaining: 5d 14h 46m Buy It Now for only: $400.00 Buy It Now | Bid now | Add to watch list |
 OLYMPUS OM T28 T 28 TTL MACRO TWIN FLASH 1 NEW BOX $199.00 Time Remaining: 10h 30m Buy It Now for only: $229.00 Buy It Now | Bid now | Add to watch list |
 Speedlite Flash Unit YN 460 fr Olympus E 620 E 520 $38.86 Time Remaining: 6d 22h 36m Buy It Now for only: $38.86 Buy It Now | Add to watch list |
 Digital camera slave flash for Canon EOS 400D Rebel XTi $51.74 Time Remaining: 13h 30m Bid now | Add to watch list |
 JY 670 Flash Strobe Macro Close Up Ring Canon 60D 5D MARK II 50D 7D for MR 14EX $96.99 (1 Bid) Time Remaining: 15h 16m Bid now | Add to watch list |
 Aputure Amaran Halo AHL C60 60 LED Macro Ring Flash Light for Canon DLSR Cameras $36.99 Time Remaining: 9d 6h 3m Buy It Now for only: $36.99 Buy It Now | Add to watch list |
 Sigma MACRO EM 140 DG Ring Light Macro Flash for Canon $42.65 (7 Bids) Time Remaining: 4d 8h 16m Bid now | Add to watch list |
 Canon Speedlite 430EX Shoe Mount Flash W Box Warranty Card Used $31.00 (10 Bids) Time Remaining: 4d 14h 38m Bid now | Add to watch list |
 Meike MK FC100 LED Macro Ring Flash FC100 For Canon EOS Camera 550D 500D 450D $31.99 Time Remaining: 13d 14h 45m Buy It Now for only: $31.99 Buy It Now | Add to watch list |
 DEDICATED iTTL FLASH FOR NIKON D40 D60 D70 D80 D100 D90 $67.94 Time Remaining: 18h 47m Buy It Now for only: $74.74 Buy It Now | Bid now | Add to watch list |
 CANON 300TL SPEEDLITE FLASH FOR T90 IN EXCELLENT CONDITION $29.99 Time Remaining: 4d 13h 53m Bid now | Add to watch list |
 YN 460II YN 460 II Flash Speedlite for Nikon D70 D70s $46.88 Time Remaining: 14d 22h 46m Buy It Now for only: $46.88 Buy It Now | Add to watch list |
 SLAVE FLASH FOR NIKON D5000 D3000 D90 40 D40X D60 $51.74 Time Remaining: 15h 26m Bid now | Add to watch list |
 YongNuo YN560II Flash Light for Canon 40D 30D 5DII 1Ds 1D T3i T2i T1i Xsi XTi XT $59.99 Time Remaining: 26d 3h 16m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 Canon Speedlite 430EX Shoe Mount Flash $0.97 (1 Bid) Time Remaining: 5d 12h 52m Bid now | Add to watch list |
 OLYMPUS OM T28 T 28 TTL MACRO TWIN FLASH 1 $149.00 Time Remaining: 10h 30m Buy It Now for only: $169.00 Buy It Now | Bid now | Add to watch list |
 Yongnuo Speedlight YN 460 Flash Metal Mount Shoe for Canon 450D 400D 350D $40.55 Time Remaining: 13d 16h 15m Buy It Now for only: $40.55 Buy It Now | Add to watch list |
 Nikon Nikonos SB 105 Underwater Strobe Flash V IV NEW NOS $59.99 Time Remaining: 3d 13h 11m Bid now | Add to watch list |
 JY 670 Flash Strobe Macro Close Up Ring Canon 60D 5D MARK II 50D 7D for MR 14EX $96.99 Time Remaining: 3d 3h 3m Bid now | Add to watch list |
 Meike FC 100 Macro Ring Flash Light for Nikon D7000 D5100 D3100 D90 D300S D3000 $39.99 Time Remaining: 27d 23h 21m Buy It Now for only: $39.99 Buy It Now | Add to watch list |
 Slave Flash for Canon EOS 450D 1000D Rebel XS XT XSi $33.24 Time Remaining: 1d 15h 46m Buy It Now for only: $36.74 Buy It Now | Bid now | Add to watch list |
 FLASH Bounce Zoom Slave for Nikon D70 D50 $33.24 Time Remaining: 1d 4h 57m Bid now | Add to watch list |
 YongNuo YN560II Flash Light for Nikon D700 D300 D300s D200 D100 D3100 D3000 D60 $69.99 Time Remaining: 26d 3h 20m Buy It Now for only: $69.99 Buy It Now | Add to watch list |
 SLAVE FLASH F CANON EOS 450D 1000D REBEL XS XT XTI $17.57 Time Remaining: 1d 12h 30m Bid now | Add to watch list |
 Ettl dedicated flash for Canon 50D 40D 30D 20D 10D 5D $94.29 Time Remaining: 2d 12h 41m Bid now | Add to watch list |
 Meike FC 100 Ring Light Macro Flash for Nikon $33.00 Time Remaining: 24d 16h 27m Buy It Now for only: $33.00 Buy It Now | Add to watch list |
 OLYMPUS OM T8 T 8 TTL MACRO RING FLASH 2 NEW BOX $349.00 Time Remaining: 10h 31m Buy It Now for only: $389.00 Buy It Now | Bid now | Add to watch list |
 Nikon R1C1 Wireless Close Up Speedlight System Commander Kit 4803 NEW $759.97 Time Remaining: 15h 25m Bid now | Add to watch list |
 Flash or Video Ring Light FC 100 Meike Macro LED for Canon 5310 $45.95 Time Remaining: 6d 9h 13m Buy It Now for only: $45.95 Buy It Now | Add to watch list |
 Slave flash for Canon 450D 1000D Rebel XS XT XSi T1i $51.74 Time Remaining: 2d 14h 1m Bid now | Add to watch list |
 Slave flash for Canon EOS Rebel XT XTi 350D 300D 450D $51.74 Time Remaining: 2d 12h 41m Bid now | Add to watch list |
 LED Macro Ring Flash Light FC100 for Nikon camera D3 D7000 D90 D3100 D5100 D3200 $31.00 Time Remaining: 27d 15h 29m Buy It Now for only: $31.00 Buy It Now | Add to watch list |
 SLAVE FLASH FOR NIKON D40 D40X D70 D50 D60 D80 D90 $51.74 Time Remaining: 1d 15h 7m Bid now | Add to watch list |
 Macro 48pcs LED Ring Flash RF550D for Nikon Canon brand DSLR RF 550D $52.15 Time Remaining: 14h 13m Bid now | Add to watch list |
 Yongnuo YN 460 Flash Speedlite for Nikon D7000 D5100 D5000 D3100 D3000 $38.99 Time Remaining: 9d 20h 45m Buy It Now for only: $38.99 Buy It Now | Add to watch list |
 OLYMPUS OM T8 T 8 TTL MACRO RING FLASH 2 $299.00 Time Remaining: 10h 31m Buy It Now for only: $329.00 Buy It Now | Bid now | Add to watch list |
 i TTL dedicated flash for Nikon D300 D90 D5000 D80 D60 $74.09 Time Remaining: 2d 13h 30m Bid now | Add to watch list |
 Macro Ring Flash LED Light Canon Sony Nikon SIGMA LENS $27.97 Time Remaining: 14d 19h 56m Buy It Now for only: $27.97 Buy It Now | Add to watch list |
 OLYMPUS OM T10 T 10 TTL MACRO RING FLASH 1 NEW BOX $149.00 Time Remaining: 10h 30m Buy It Now for only: $169.00 Buy It Now | Bid now | Add to watch list |
 LED Macro Ring Flash Light FC100 for Canon EOS 600D 60D $31.00 Time Remaining: 14d 15h 16m Buy It Now for only: $31.00 Buy It Now | Add to watch list |
 2 Vintage Hasselblad Ring Flashes W 63 Hasselblad adapters $50.00 Time Remaining: 3d 16h 32m Bid now | Add to watch list |
 Dedicated iTTL flash for Nikon D40 D50 D80 D200 D70s $74.09 Time Remaining: 2d 14h 1m Bid now | Add to watch list |
 LED Macro Ring Flash FC100 For Canon 40D 30D 20D 10D $23.33 Time Remaining: 24d 19h 7m Buy It Now for only: $23.33 Buy It Now | Add to watch list |
 FLASH ITTL + SLAVE + DIFFUSER + LCD PROTECTOR + MICROFIBER FOR NIKON D60 $139.14 Time Remaining: 2d 12h 41m Bid now | Add to watch list |
 Vivitar Digital Macro Ring Flash DR5000 for Sony A77 A65 A55 A33 A580 A550 A390 $59.99 Time Remaining: 16h 33m Bid now | Add to watch list |
 Godox Speedlite Macro Flash Ring Light for Canon Nikon Sony Olympus Panasonic $49.99 Time Remaining: 18d 19h 30m Buy It Now for only: $49.99 Buy It Now | Add to watch list |
 SUNPAK 622 Super Pro System Bundle $150.00 (1 Bid) Time Remaining: 4d 13h 12m Bid now | Add to watch list |
 SLAVE FLASH FOR NIKON D40 D70 D50 D60 D80 D90 + GIFT $56.34 Time Remaining: 2d 12h 41m Bid now | Add to watch list |
 Macro Ring Flash LED Light for Canon Nikon Sigma Lens $26.58 Time Remaining: 14d 19h 45m Buy It Now for only: $26.58 Buy It Now | Add to watch list |
 Slave Flash for NIKON D3000 D5000 D80 D90 + FREE GIFT $56.34 Time Remaining: 2d 14h 1m Bid now | Add to watch list |
 Lomography Ringflash Circle Flash Mount multi color set Diana Holga Fisheye Lomo $49.99 Time Remaining: 15h 17m Bid now | Add to watch list |
 YN460 Flash Speedlite for Canon 1D 5D 5DII 50D 40D 30D $38.86 Time Remaining: 6d 22h 36m Buy It Now for only: $38.86 Buy It Now | Add to watch list |
 YONGNUO YN560 DSLR Camera Speedlite Flash Light for Nikon Canon Pentax Olympus $58.88 Time Remaining: 14h 43m Bid now | Add to watch list |
 UNITRON RL 80 RING LIGHT FLASH VARIABLE RINGFLASH $40.00 Time Remaining: 2d 8h 32m Bid now | Add to watch list |
 VILTROX JY 680 flash for Canon 60D 550D 600D 300D 350D 5D 1D 1000D 20D 30D 40D $98.29 Time Remaining: 26d 6h 22m Buy It Now for only: $98.29 Buy It Now | Add to watch list |
 LOMO LOMOGRAPHY RING FLASH RINGFLASH FISHEYE LC A HOLGA DIANA F+ CAMERA $62.47 Time Remaining: 14h 20m Buy It Now for only: $69.99 Buy It Now | Bid now | Add to watch list |
 e TTL Macro Ring Flash for Canon 5D 30D 40D 50D 60D EOS 1D EOS 1D X $129.00 Time Remaining: 4d 15h 34m Bid now | Add to watch list |
 VILTROX JY 680 flash 58 Index powered zoomo for Canon nikon Panasonic Olympus $98.69 Time Remaining: 26d 5h Buy It Now for only: $98.69 Buy It Now | Add to watch list |
 Digital slave flash for Panasonic DMC G1 FZ28 FZ20 FZ18 $51.74 Time Remaining: 2d 12h 41m Bid now | Add to watch list |
 i TTL Macro Ring FLash for Nikon D3 D3X D7000 D5000 D3000 D300s $129.00 Time Remaining: 4d 15h 34m Bid now | Add to watch list |
 Yongnuo YN 460 Flash Speedlite for Canon 1D 1Ds 5D 5DII 7D 50D 40D 30D 20D 10D $38.99 Time Remaining: 11d 18h 56m Buy It Now for only: $38.99 Buy It Now | Add to watch list |
 DEDICATED ITTL MACRO RING FLASH FOR CANON T3I 600D T2I 550D T1i 500D XSi XS 7D $84.00 Time Remaining: 4d 14h Buy It Now for only: $94.00 Buy It Now | Bid now | Add to watch list |
More Great Information on Flash Ring:
Photography 101: External vs Built-in Flash by Jennifer Clarkson
External flashes, or accessory flashes, have several benefits over built-in, pop-up flashes seen on most cameras today. Power, the ability to change light source location relative to the lens, and additional features all make external flashes worth considering for the avid hobbyist.
Bulb Power
First, let's discuss power. Simply put, external flashes have much more power than built-in flashes. Think of how many times it took you to learn that your built-in flash's light fell short of the intended subject and lit only the near objects in your scene. The ability to throw light farther is measured by a flash's guide number, which used to be the only way to calculate exposure. Specifically, the correct aperture (for ISO 100) equals the guide number divided by the number of feet of the flash from the subject.
Metering with Flash
Modern external flashes allow exposure to be metered with TTL (through-the-lens) flash metering, which allows the unit to regulate the amount of light output in auto-exposure modes. The flash actually cuts off light when enough has been dispensed on the subject. Flash exposure compensation allows further fine-tuning whereby adjustments can be made to allow more or less light than the TTL metering suggests. Thus, today's external flashes only have a guide number for flash power comparisons. The guide number on a typical pop-up flash is fairly low - perhaps 40 - whereas the guide number on an external flash easily has a guide number upwards of 100 or 200. For comparison purposes, you need to understand that a guide number of 80 is four times (two stops) more powerful than 40.
Flash Proximity to Subject
External flash also allows you to distance the flash light source from the lens. This becomes very important for macro photography where pop-up flashes can actually cause shadows of the lens, based on its proximity to the large barrel. It is also more likely to cause red-eye in portrait shots, and means you cannot conveniently counteract another light source since the built-in flash is not moveable. With infrared or radio slaves, motion detectors or photo cell sensors, multiple flashes can be triggered remotely in sync, no matter how far away from the camera they are.
Fill Flash
Most accessory flashes have the ability to shoot at less than 100% power, so as to enable fill-flash in appropriate situations. Built-in flashes must be manually covered with a diffuse fabric in order to be successful at providing fill-light (e.g. brightening a flower, or combining fill-flash with slow shutter speed for fast-moving wildlife). Variable power in external flashes makes fine-tuning aperture or flash proximity to subject very easily. Some external flashes have infrared sensors that sense the distance to the subject automatically, thus synchronizing the camera to suggest a correct aperture and shutter speed.
Flash Heads
When it comes to physically setting up an external flash, most come with swivel and bounce heads, to allow more realistic and softer lighting effects by bouncing light from a white card or reflector above or to the side of the subject. These are things that a pop-up flash cannot do.
Zoom heads on external flashes allow for coverage adjustment when the flash is used in conjunction with a wide-angle or telephoto lens. The path of light covered by the flash will be modified to suit the angle of coverage by the lens. Ring flashes are a particular type of external flash that forms a ring around the barrel of the lens - they are best suited to macro or portrait photography where large lenses can get in the way of pop-up flashes and cause a shadow.
Dedicated Flashes
Dedicated flashes are external flashes built specifically to work with a particular camera's features and settings. Third party flash manufacturers such as Sigma design dedicated flashes for each of the major camera brands.
Jennifer Clarkson is a Canadian photographer living in Ottawa. She is compiling a series of Photography Tips on her website to promote the education of amateur photographers.
For more Photography Tips, or to view her Photo Gallery, please visit www.jclarksonphotography.com.
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Article Source: http://www.earticlesonline.com/Article/Photography-101--External-vs-Built-in-Flash/47999