tag:blogger.com,1999:blog-17534827.post50931582068514431..comments2024-03-27T22:02:52.479-04:00Comments on Digital ProTalk: Friday: "Flash Power Demystified"David Ziserhttp://www.blogger.com/profile/02674227631785266632noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-17534827.post-46361032266056845432011-04-10T11:30:00.306-04:002011-04-10T11:30:00.306-04:00Love your book and videos. I appreciate the input...Love your book and videos. I appreciate the input from fellow viewers also. When I see your Quantum flash, I see it as a hard light source with lots of wasted - spilled light. Perhaps a barn door could better direct the light in this shot of rim lighting. Surely it would stop the lighting of the moon, stars and other things. Just an interesting comment. It would also make the 75 W/s output of the canon to be more utilized. Also I love the canon remote control flashes and the side port for a 6 or 8 battery pack which I have two six units. Upping the ISO on the 5D M2, barn doors, battery packs just make it possible for us to use the Canon (which I have 2) verse the great quantum flash and remotes. <br /><br />Have you ever used filters like the CP or ND to help with bluing your skies and allowing your shutter speed to drop back to 200 or so? I am interested in that question. Thankskaptnkhttp://kwmastersphoto.comnoreply@blogger.comtag:blogger.com,1999:blog-17534827.post-81615055597367169562011-03-03T05:56:31.187-05:002011-03-03T05:56:31.187-05:00David,
Your on-camera flash of choice is a Canon 5...David,<br />Your on-camera flash of choice is a Canon 580EX for fill flash.<br />Is there a reason why you don't use a Qflash Trio instead? You would have to carry a Qflash SC battery but you would get remote power adjustment of your remote T5DR.Rollin McCartyhttp://www.rollinmccarty.biznoreply@blogger.comtag:blogger.com,1999:blog-17534827.post-44349128049912469122010-10-09T08:27:02.742-04:002010-10-09T08:27:02.742-04:00A correction on your rating claim. The Canon 580EX...A correction on your rating claim. The Canon 580EX is not 50ws. It actually is 75ws (76 actually). It has a 1400uF capacitor and at a 330v charge voltage this comes out to 76ws.Rudyhttps://www.blogger.com/profile/09453137133860347945noreply@blogger.comtag:blogger.com,1999:blog-17534827.post-66925194441471828972010-10-09T04:23:53.504-04:002010-10-09T04:23:53.504-04:00David, I love you like a brother but your estimate...David, I love you like a brother but your estimates for the SB-800, SB-900 and Canon 580 EX II are just way off. :)<br /><br />Did you sincerely take all 3 of these flashes, set them to the same zoom settings, pop off several full flashes and see what the calibrated Sekonic light meter told you?<br /><br />This is exactly what I did. The 3 flashes above read 100% exactly the same meter readings under the same settings (50mm zoom, identical distance and full power output).<br /><br />Granted, if I set the zoom head of the SB-900 to 200mm, the meter read higher than the others, but thats not a higher W/s rating, thats just a greater zoom.<br /><br />Instead of believing some of the marketing BS manufacturers write, I invite you to do the same basic test I did... it is rather eye opening. :)Anonymoushttps://www.blogger.com/profile/11409802847837549963noreply@blogger.comtag:blogger.com,1999:blog-17534827.post-53729462192537192422010-10-02T19:24:37.224-04:002010-10-02T19:24:37.224-04:00see ya monday! can't wait to help you out too...see ya monday! can't wait to help you out too!Daniellehttps://www.blogger.com/profile/00273574703871276271noreply@blogger.comtag:blogger.com,1999:blog-17534827.post-89276273068655413222010-10-01T22:36:25.834-04:002010-10-01T22:36:25.834-04:00Hi David...you suggest shooting off-camera flash i...Hi David...you suggest shooting off-camera flash in Manual flash mode all the time. This certainly makes sense for more static scenes like the formals. But how do you deal with changing flash-to-subject distances and other exposure variables in more dynamic scenes like dancing on the dance floor with the flash in manual mode? Is it that you rely on your assistant to always maintain a fixed flash to the subject distance? If so, how would you do it without an assistant?mvrk2010https://www.blogger.com/profile/09781385106213211861noreply@blogger.com