Nikon flash output and focus points

[DesmondD]

I was asked about this recently and did a blog with some tests proving that the flash output can change in certain situations when the focus point is moved :smile:

[Lani]

Hmmm, that is a significant difference. Might have a bit of a play myself.

[zollo]

i can vouch for this happening with Nikon, absolutely true. will post examples tomorrow

[DesmondD]

Hmmm, that is a significant difference. Might have a bit of a play myself.

i can vouch for this happening with Nikon, absolutely true. will post examples tomorrow

There will be a difference almost always with TTL-BL when the actual focus distance changes which is normal . This particular setting is an isolated incident with regard to the meter leaving the centre and moving to under-exposure simply because of a move in focus points .