E3 horizontal line problem. Please help.

[shengliang1981]

I was trying to shoot some lighting last week and found that some of the pics appears to have some weird horizontal lines as shown in the 2 pics below. They were shot in bulb mode.

Does anyone has this similar problem or know what is the cause? Could this be a sign of the shutter failing or is it normal? Please help.

[phan_vinh_nguyen]

Can be explained that there is lightning strike when the curtain is opening/closing. Because the duration of one flash is very fast, it leave fix the sharp image of the curtain on the sensor, hence causes the horizontal line. I think this is normal.

[shengliang1981]

Originally Posted by phan_vinh_nguyen Can be explained that there is lightning strike when the curtain is opening/closing. Because the duration of one flash is very fast, it leave fix the sharp image of the curtain on the sensor, hence causes the horizontal line. I think this is normal.

I think you are right. Thanks.

[shaoken]

It may due to the shutter speed.

Sorry to derail a little.
Can I ask what is bulb mode?

Thanks.

[shengliang1981]

Originally Posted by shaoken It may due to the shutter speed. Sorry to derail a little. Can I ask what is bulb mode? Thanks.

Bulb mode is where the shutter remains open while the shutter button is being pressed until it is released.