Ys 01's in TTL

[cardog]

Anyone know why my YS 01's wont fire in ttl if they are pointed inward and toward each other?

 

[DazedAndConfuzed]

Is the fiber optics plug plugged all the way in?

 

[cardog]

Yes. They work fine unless they are pointed in at each other.......

 

[DazedAndConfuzed]

Maybe light leak into fiber optic sensor? Maybe mask out all the area around the port for the fiber optic connection on the strobe?

How about in manual?

 

[Rene1978]

Did you set the camera to "force flash"?

 

[cardog]

Never change the settings. Force flash always on and there is no where for light to leak from the Oly housing.......

 

[Lumin]

Any chance the built in focus lights tricks the on-board sensors to think there is enough light?

 

[cardog]

Any chance the built in focus lights tricks the on-board sensors to think there is enough light?

Focus lights are not on. I'm doing this in my kitchen at home. Both strobes fire in ttl when pointed straight out. When I point them in towards each other they just pop at full power.

 

[herbdb]

Could the TTL sensor on the strobes be picking up a very short flash from the opposite strobe and shutting the flash down before you can detect it.

This could happen so fast that it is not easily detectable, just as we can't detect any delay when a strobe fires because it was triggered by another strobe.

 

[cardog]

Could the TTL sensor on the strobes be picking up a very short flash from the opposite strobe and shutting the flash down before you can detect it.

This could happen so fast that it is not easily detectable, just as we can't detect any delay when a strobe fires because it was triggered by another strobe.

Possibly. You would think that they would fire simultaneously though......