Reasons not to like 70-200 f4 IS (trade for 100-400)

Started Feb 6, 2008 | Discussions thread
1Balance Contributing Member • Posts: 899
Re: IS ineffective at what shutter speed?

Generally, 1/FL for handheld non-IS shooting. So for the 400, 1/400 FF or 1/640 on crop. Of course experience, a steady hand & the morning's coffee consumption can sway that either way. If you're going slower than 1/250, you'll likely need a mono/tripod

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Lyin' Pete used to do this all by touch...

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