As per your suggestion, I tested again and it works now.
It was my own problem b/c I used Tv function with 1/640 speed and ISO100. ISO was too low to show with the high shutter speed. All pictures were black. After I changed ISO to 1600, all pictures showed up.
It is very interesting playing with SLR. I like it. Thanks for your expertise!
It was my own problem b/c I used Tv function with 1/640 speed and ISO100. ISO was too low to show with the high shutter speed. All pictures were black. After I changed ISO to 1600, all pictures showed up.
It is very interesting playing with SLR. I like it. Thanks for your expertise!