Camera Labs

Good day! Do i really need image stabilizer on a lens with constant f/2.8, specially in low light or night situation?
Your comments would be appreciated, thank you!

Well, it's always handy if your hands are not that steady! But if you already have steady hands I do not really see a benefit with a wide-angle-zoom lens.
Telelenses are another story though.

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Ruben

Panasonic DMC-FZ18, Panasonic DMC-FZ28, Canon G5, Canon 350D, Canon 50D + BG-E2N
Tamron 17-50 2.8, Canon EF 70-200mm f/4L USM,
Canon 18-55 II plus lots of Minolta MD/M42 lenses and bodies

Exactly, it depends both on how stable your hands are and which lens we're talking about. In a 18mm lens, probably it's unnecessary, but if we're talking about, say, a 100mm, that's another thing.

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Gear: Canon SX20 IS, Canon Rebel T3i, Canon EF-S 18-55mm
Wishlist: Canon 50mm f/1.8 II, Canon EF-S 55-250mm f/4-5.6 IS II
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You may, or you may not. Depends on what you're shooting. Note that the rule of thumb for IS -- shutter speed faster than the reciprocal of focal length multiplied by crop factor -- does not mention aperture value. So even with my Voigtlander 17mm f0.95, for example, if I wanted to shoot handheld with a 1/8 shutter speed, I'd be better off using my E-PL5 (which has in-body IS) vs my GH2 (which does not).

Although, "in real life" I'd actually try to use a tripod - Mark