1 / 2xFocal Length - What about IS?

Started 8 months ago | Discussions thread
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Myer
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1 / 2xFocal Length - What about IS?
8 months ago

I believe the old standard used to be (or is) 1 / 2xfocal length.

Well, I have a 70-300L lens.

Does that mean that at 300mm I should shoot at a shutter speed of 1/600 sec or faster (excl BIF)?

I would assume yes. I'm getting older and less steady than I used to be so I'd try and shoot at a somewhat faster shutter speed of 1/1000 (faster for BIF) if I have enough light.

Then I started to think.

Where does IS fit into the picture? If this lens has the new generation of IS that supposedly gives up to 4 stops of IS (whatever that means), shouldn't I (considering I'm not as steady as I used to be) be able to get good results by shooting at between 1/320 and 1/500 or maybe even slower?

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