DGWeiss
Well-known member
We all know of the 1/(F.L.-in-mm) rule-of-thumb establishing the lowest handheld speed. This, however, is really an angular vibration rule stated specifically with regard to full-frame sensors.
If you wanted to use this rule on your 1.6 sensor camera with a 50 mm lens mounted, you'd have to consider you lens to be the equivalent of 80 mm for purposes of the rule, which would therefore tell you to stay above 1/80 sec.
Accordingly, consider the minimum useful focal length lens to equip with image stabilization, in the full-frame world. (Choose whatever F.L. you like.) Now, by the same rationale, in the 1.6 sensor world, the equivalent F.L. is about 0.6 times as much.
I think it would make sense for Canon to consider propagating I.S. down one focal-length step in their lens lineup, assuming that they believe that they're going to be selling 1.3,1.5,1.6 sensor cameras for a long time.
If you wanted to use this rule on your 1.6 sensor camera with a 50 mm lens mounted, you'd have to consider you lens to be the equivalent of 80 mm for purposes of the rule, which would therefore tell you to stay above 1/80 sec.
Accordingly, consider the minimum useful focal length lens to equip with image stabilization, in the full-frame world. (Choose whatever F.L. you like.) Now, by the same rationale, in the 1.6 sensor world, the equivalent F.L. is about 0.6 times as much.
I think it would make sense for Canon to consider propagating I.S. down one focal-length step in their lens lineup, assuming that they believe that they're going to be selling 1.3,1.5,1.6 sensor cameras for a long time.
