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gheller Offline Buy and Sell: On p.1 #1 · Flash Sync (Canon loses to Nikon) OK, not a Canon bash thread by any stretch (I have the 5D, 1D2 + 4 L's) WHY, oh WHY can't my $4000 1D2 or $3000 5D sync at 1/4000 to my AB heads Actually, my friend's D70 can sync up to 1/8000. And don't tell me to reduce power of the AB or some trick that will barely let light in. The D70 does it easily with the PC cord. Am I missing something? Thanks! Here is a shot @ 1/4000 Edited on Jul 03, 2008 at 05:59 AM Jul 03, 2008 at 05:59 AM

Ariel Bravy Offline Buy and Sell: On p.1 #2 · Flash Sync (Canon loses to Nikon) Why? Electronic shutters as opposed to mechanical ones. CCD-based sensors instead of CMOS-based sensors. http://strobist.blogspot.com/2008/01/control-your-world-with-ultra-high-sync.html Jul 03, 2008 at 06:10 AM

gheller Offline Buy and Sell: On p.1 #3 · Flash Sync (Canon loses to Nikon) Yeah, I knew this, but I really like doing high-speed and day-to-night. It is just so frustrating that I cannot do this with my Canons! Thanks for the link, very informative. greg Jul 03, 2008 at 06:17 AM

dmldl123 Offline Image Upload: Off p.1 #4 · Flash Sync (Canon loses to Nikon) cool pic Jul 03, 2008 at 06:31 AM

Ian.Dobinson Offline Image Upload: Off p.1 #5 · Flash Sync (Canon loses to Nikon) Ariel Bravy wrote: Why? Electronic shutters as opposed to mechanical ones. CCD-based sensors instead of CMOS-based sensors. http://strobist.blogspot.com/2008/01/control-your-world-with-ultra-high-sync.html quite an interesting read. looks like the old 1D will work on the canon side. Jul 03, 2008 at 06:49 AM

EOSMIKE Offline [ X ] p.1 #6 · Flash Sync (Canon loses to Nikon) For that exact reason, I always throw an NSync LP onto the turntable hen I shoot with flash! ( NSync's music, ironically and thankfully, makes up only about 1/8000th of my collection) Edited on Jul 03, 2008 at 06:58 AM Jul 03, 2008 at 06:57 AM

Ariel Bravy Offline Buy and Sell: On p.1 #7 · Flash Sync (Canon loses to Nikon) Ian.Dobinson wrote: looks like the old 1D will work on the canon side. Yes and no. Just did a test with my 1D and 580ex in the hotshoe with the TTL pins taped with gaffer tape.. ISO 200, f4, syncs all the way up to 1/2500 reliably. 1/3200, sometimes looks normal, sometimes dark by about a stop 1/4000, black frame The flash power could be set at anything on manual and work fine. ISO 200, f4 was giving me a flash power of 1/128, the weakest setting on my 580ex. Once I cranked it up to 1/4000 or faster, all the way up to 1/16000, it took ISO 3200 and a full flash pop to get a proper exposure. However, the entire scene was magenta. Here's a shot I took about a year and a half back showing this effect. ISO 200, f2.8, 1/16000. (The flash was closer to the subject in this image than the ones I just shot so I could get away with a lower ISO.) Once you cross the critical threshold of 1/4000, you need a flash pop that's a full 11 stops brighter to get the proper exposure, or 2000 times as much light. So to sum it all down to something useful, the 1D syncs reliably with a neutered flash at up to 1/2500. Edited on Jul 03, 2008 at 08:43 AM Jul 03, 2008 at 08:40 AM

hfillmore Offline Image Upload: On p.1 #8 · Flash Sync (Canon loses to Nikon) Ariel........... Mind telling me exactly which are the TTL pins that you taped? I'd like to try taping them on some of my cameras to see what I can come up with. Are they actually all of the pins other than the largest round one? Thanks, Harvey Jul 03, 2008 at 10:23 AM

EOSMIKE Offline [ X ] p.1 #9 · Flash Sync (Canon loses to Nikon) You can also use a complete dark room (except a safe light, perhaps). Open the shutter for say, 15 seconds! (or even less if you can complete the act -- i.e. spilling waterfall of milk -- within a shorter time frame). Absolutely nothing will record until you pop the flash (or flashes) which as you say, could be as short a duration as 1/4000 of a second, or even less. Anyone got such a sample image? Edited on Jul 03, 2008 at 03:17 PM Jul 03, 2008 at 03:13 PM

Ariel Bravy Offline Buy and Sell: On p.1 #10 · Flash Sync (Canon loses to Nikon) Harvey, correct. Jul 03, 2008 at 05:37 PM

UFO™ Offline Buy and Sell: On p.1 #11 · Flash Sync (Canon loses to Nikon) EOSMIKE wrote: You can also use a complete dark room (except a safe light, perhaps). Open the shutter for say, 15 seconds! (or even less if you can complete the act -- i.e. spilling waterfall of milk -- within a shorter time frame). Absolutely nothing will record until you pop the flash (or flashes) which as you say, could be as short a duration as 1/4000 of a second, or even less. Anyone got such a sample image? Ask and you shall receive Shot using a couple of old Vivitar flashes set to their fastest duration using a jumper with a sound trigger. Same concept below but the trigger was an optical "gate" that the drop passed through before hitting the glass. Edited on Jul 03, 2008 at 10:18 PM Jul 03, 2008 at 10:15 PM

EOSMIKE Offline [ X ] p.1 #12 · Flash Sync (Canon loses to Nikon) sweet! Jul 03, 2008 at 11:32 PM

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