I experimented with using the EF600/4L IS with the new EF2 II and EF1.4
tc's on the moon out of curiosity. Conditions were ideal with no wind to
speak of.
I was not pleased with the results . . . all images were too soft.
So, I am surprised that you had such success. Arthur Morris also states he
uses ganged converters on the faster IS lenses so you are in good company.
I will have to try again.
> From: Ray Amos <[EMAIL PROTECTED]>
> I use my 500 f/4 IS lens 20% of the time
> with both the 1.4x and 2x on my D30 which gives me an effective 2,240mm
> f/11 lens. I have never turned the IS feature "off". It cannot hurt
> anything and it can help anywhere from a little bit to a whole lot. I
> have used this combination with a 1v (1,400mm) on an Eagle in Florida
> with 20 mph winds. With IS, over half were sharp.
- --
Terry Danks
Nova Scotia, Canada
Wildlife & Nature Photography
http://www3.ns.sympatico.ca/danksta/home.htm
------------------------
Don't forget that the object, i.e. the moon, will move considerably during
exposure, magnified by the extremely long lens. Other than the electronic
image stabilisers in video cameras the IS system only corrects for
movements
of the lens. I'd suggest trying the combo on a stationary object.
Kai
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