story_teller Offline Upload & Sell: On
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pjny wrote:
Can someone please explain how to you:
lock the exposure once you find a good exposure when using TTL?
What does +/- on each head do when using TTL?(I think it does nothing, only Flash exp. compensation works)
How do I dial up/down different heads when trying to tweak a TTL exposure?
Is manual the only way to really use B1/B2 without blown out/underexposed images
Any tricks or tips would be welcome. I am getting wildly inconsistent results with B2. I just got B1.
This is for Nikon users. I believe Canon calls it Flash Exposure Lock and it works a bit differently.
Many Nikon cameras have a feature called FV Lock (Flash Value Lock). That's how you lock ttl exposure. Some photographers don't realize that the ttl metering is separate from normal camera metering and not locked when you use a half-press of the shutter release. The ttl metering only occurs using the pre-flash. That means that if you meter and focus on the face using a half-press and then recompose, ttl metering is still waiting for the pre-flash to get it's reading. Use FV Lock to meter on the face, the pre-flash will fire and the ttl value will be locked in. Then you can recompose the scene and shoot as you wish.
Whatever is in the center of the frame when the pre-flash fires will influence the ttl meter level and thus the flash power used. Nikon ttl is center-weighted so if you have ligher or highly reflective values in the center, you'll underexpose to some degree and visa versa.
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