2007-10-12 02:24:27 · 5 answers · asked by Anonymous in Consumer Electronics ➔ Cameras
IS or VR in the camera body only helps by about 2-3 stops, though I've also read that 1 f-stop number you quoted. IS or VR in the lens helps by 3 to 4. I just know that I can handhold my Nikon 18-200mm VR at 1/4 second with excellent results.
Here's a quote for Popular Photography. Look carefully at the chart on the rightside of page #2..
"So far, lens-based IS has the lead, with one Nikon VR lens logging a 3- to 4-stop improvement (a few big tele zooms barely reached 2 stops). In contrast, the best result from a sensor-shift DSLR is 2 to 3 stops, with the average closer to 2 stops. "
http://www.popphoto.com/cameras/4615/image-stabilization-special-stop-the-shake-lab-report-page2.html
2007-10-12 12:00:45 · answer #1 · answered by George Y 7 · 1⤊ 0⤋
Tom Tom is correct.
You are wrong. A full (one) stop is f2 to f2.8 to f4 or 1/125 to 1/60 to 1/30 or 1/125 to 1/250 to 1/500 - at a constant ISO.
2007-10-12 10:43:39 · answer #2 · answered by EDWIN 7 · 0⤊ 0⤋
Thank you George. :-)
Most lens-based IS is good for at least 2-3 stops, but don't think of that as an f-stop improvement. Think of it as a shutter speed improvement. You are able to use a lower shutter speed, but the f-stops available to you will obviously be no different than they are without "IS."
2007-10-13 01:29:30 · answer #3 · answered by Picture Taker 7 · 0⤊ 0⤋
usually up to 3 stops
it depends on the camera
2007-10-12 09:53:52 · answer #4 · answered by Elvis 7 · 1⤊ 0⤋
how does IS have anything to do with stop?
2007-10-12 11:41:31 · answer #5 · answered by loser 3 · 0⤊ 2⤋