Angle of View to Z

S

SJ_Lee

Active member
Is there a source on the web that corresponds those pesky zoom numbers to Angle of View numbers?
 
Re: Angle of View to Z

I don't know, but I think they're linear, aren't they? I think Z50 corresponds to half the travel through the zoom range. If that's the case, you should be able to use a simple formula of focal length = 4.5mm + (40.5mm * (Z/100)). So Z99 would yield 99/100 * 40.5mm = 40.5mm, plus 4.5mm, yields 45mm. And Z50 would yield about 25mm.
 
Re: Angle of View to Z


I just figured that someone may have gotten the exact numbers from Panasonic.
 
Re: Angle of View to Z

Um, just checked my camera.

Are the 100 models 4.5 to 40? Since my 100A goes 45.

As for the linearity. It's definately not linear, as Z50 is 10 -- at least that's what it says on the dial.
 
Re: Angle of View to Z

[quote author=SJ_Lee link=board=Events;num=1081512474;start=0#3 date=04/10/04 at 22:17:33]Um, just checked my camera.

Are the 100 models 4.5 to 40?  Since my 100A goes 45.

As for the linearity.  It's definately not linear, as Z50 is 10 -- at least that's what it says on the dial.
[/quote]

No, the 100s go from 4.5 to 45. What makes you think they'd go to 40?
 
Re: Angle of View to Z

Ya, it was my mistake. I didn't read it properly.

However, I'm certain that it's not linear
 
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