Depth of field with 2x ?

[Tapeman]

When using a Canon 2x converter on my 70-200 2.8L and the lense is open to f2.8, the camera sees f5.6 because of the converter.

Is the DOF still the same as @ f2.8?

I know that minimum focusing distance does not change with the converter on the lense.

Has anyone checked this?

[EXA1a]

When using a Canon 2x converter on my 70-200 2.8L and the lense is open to f2.8, the camera sees f5.6 because of the converter.

Is the DOF still the same as @ f2.8?

I know that minimum focusing distance does not change with the converter on the lense.

Has anyone checked this?
Physical properties of the lens+extender combo are 140-400/5.6 and thus DOF is accordingly.
--Jens--

[PaulB]

Three things - and only these three things - affect DoF.
These are:
Focal length of lens
Aperture set on lens
Subject distance

Therefore Jens is correct.