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>>253275 >i dont think youve ever thought outside the box [ ] Nope. He's right, you have the dumb.
The reason for flash sync speed is that, for extra-fast shutter speeds, most SLRs don't actually open the shutter all the way. Like say that the flash sync speed is 1/200th. If you shoot at 1/400th, the shutter will only open halfway and will move across the frame at that same speed as it does for the 1/200th shots. 1/800th, same thing--half the shutter blade separation of 1/400th, but they'll move at the same speed as 1/200th.
The reason that you have a flash sync speed, therefore, is that with faster speeds, the shutter is only partially open when the flash goes off. So you'll get flash on some fraction of the frame, but the flash happens too quickly and won't get the parts of the frame that the shutter's open slit hasn't traveled over yet.
So how did this guy get 1/3200th flash sync? Because he's using a D50. The Nikon D50 and D70 don't use a physical shutter for the faster speeds, they just turn the sensor on and off really quickly. I assume they still use a shutter for the slower speeds, but I'm too lazy to look it up.
The reason for the "tape the contacts" thing is because the D50 and D70, although it's perfectly capable of syncing at ultrafast speeds, *won't* if it knows it has a flash attached because Nikon is run by bastard coated bastards with bastard filling who arbitrarily limit the capabilities of their low-end cameras because they want you to buy the higher-end ones. So the trick works with sync-only flashes (like the Vivitar 285HV and such) with no problem, but only works with Nikon-branded flashes if you cover up the dedicated Flash sync terminals so the camera doesn't realize it has a Nikon flash on it.
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