are 50x zoom "FAKE"..?

Started Mar 28, 2013 | Discussions thread
MarioV Veteran Member • Posts: 6,770
Re: are 50x zoom "FAKE"..?

Hossam Saad ElDin Abd Alhalim Farg wrote:

Very Thanks for everyone who is reply to my question about the focal length.
But a special thanks to " Michael Kaplan" about the right answer.
Michael explain that the distance between the sensor and the lens are important to clarify the subjects size, and not the capability of lens zoom.
Kodak start as 6.3mm and Canon start as 4.3mm
so the lens of canon are closest by:  6.3 - 4.3= 2mm
{{ 2mm }} are a {{ BIG }} Significant difference

I think I know what you're on about now.  You are probably mistaking "zoom" with magnification.

No, the 50x zoom is not 50x magnification.  Once you zoom in to 1:1 (hmm dunno where that is exactly, maybe 15mm ?)  then 215/15 = 14x magnification.

Just for example.  No exact measurements here.

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