problem with my canon 550D

hi guys!! im a newbie here. so i have problem with my canon 550D/Rebel T2i. when im
taking a picture using shutter speed below 1/250, the picture is okay. but when im taking using above/more than 1/250 (shutter speed), there have black shadow in the picture. i'll attach the picture to yours view. Please help me...thanks.

 

 shutter speed: 1/250

f:1.8

iso:200

 

 shutter speed: 1/320

f:1.8

iso:200

 

 shutter speed: 1/400

f:1.8

iso:200

 

 shutter speed: 1/500

f:1.8

iso:200

 

 shutter speed: 1/640

f:1.8

iso:200

 

 shutter speed: 1/800

f:1.8

iso:200

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Comments

alexei6
By alexei6 (Oct 3, 2012)

I think that the problem is the flash sync speed, If i not wrong the flash sync speed for the 550D is 1/200 or lower (1/100 ... 1/60 and son on ).... So when you take a shot whit a fastest speed (1/200 ....1/4000) The camera shutter is faster than the flash fill time, thas´s why your photos appears half iluminated

Further reading!!!!
http://en.wikipedia.org/wiki/Flash_synchronization

0 upvotes