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Old 04-21-09, 09:28 AM   #1
mustang1
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Panasonic Lumix G1 / GH1 lens size

With this new Micro Four Thirds camera, when they talk about lens size being 14-45mm (or whatever), are they saying that's the actual size or have they converted those numbers to 35mm SLR equivalents?
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Old 04-21-09, 12:50 PM   #2
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That's the actual effective focal length, not 35mm equivalent.

The Micro 4/3 standard has a diagonal dimension on the sensor of about half that of 35mm or full frame. This makes it effectively a 2x crop sensor size. It uses a 4:3 aspect ratio like P&S's instead of the 3:2 aspect ratio like SLR's, so the edge dimensions will be slightly different, but not enough to worry about.

With the 2x crop factor, a 14-45 would equate to a 28-90 in 35mm equivalent.
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Old 04-21-09, 07:19 PM   #3
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Worth the cost? A quality camera and movie cam all in one package? It's launched japan this Friday.
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Old 04-21-09, 10:56 PM   #4
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Well, it's an interesting package for sure...very compact for having the benefit of interchangeable lenses. I tend to think of movie mode in an SLR generally as a bonus rather than a basis for picking one camera over another.

I was just reading a press release about the GH1, and I'd be slightly concerned about ability to explicitly control settings being compromised in favor of whiz-bang auto-features, but overall I think the 4/3 standard is a nicely positioned to provide more options for those who want a nice camera without the size of a true SLR.
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