- #1
FocusedWolf
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Ok so this really has nothing to do with astronomy, besides the use of lens,... but it is a lens question so here goes :P (moderators may move this if their's a more appropriate place for it)
Information printed on the lens: "Carl Zeiss Tessar 2.0/3.7 2MP Autofocus".
This is from a Logitech webcam that my team might be using for our college senior project.
I'm trying to determine as much information as possible about this lens... because knowing the field of view for this lens at different distances is critical for our project. So anything and everything about "Tessar 2.0/3.7" i need to know.
from this webpage, i found a partial explanation of what those numbers sort of indicate: http://www.zeiss.com/C12567A8003B58B9/Contents-Frame/62CB515DD162CAA8C125731D004AC1B7
"They feature a Tessar 3.7 mm, f2.0 autofocus lens that has been optimized for a resolution of 2 megapixels, thus enabling outstanding detail rendition and clarity."
so, I'm guessing here:
3.7 mm lens diameter?
"f2.0" so focal length = 2.0 mm?
And if you can point me to some webpage that has formulas for calculating other useful information about lens' in general, then that would be most helpful :P
Information printed on the lens: "Carl Zeiss Tessar 2.0/3.7 2MP Autofocus".
This is from a Logitech webcam that my team might be using for our college senior project.
I'm trying to determine as much information as possible about this lens... because knowing the field of view for this lens at different distances is critical for our project. So anything and everything about "Tessar 2.0/3.7" i need to know.
from this webpage, i found a partial explanation of what those numbers sort of indicate: http://www.zeiss.com/C12567A8003B58B9/Contents-Frame/62CB515DD162CAA8C125731D004AC1B7
"They feature a Tessar 3.7 mm, f2.0 autofocus lens that has been optimized for a resolution of 2 megapixels, thus enabling outstanding detail rendition and clarity."
so, I'm guessing here:
3.7 mm lens diameter?
"f2.0" so focal length = 2.0 mm?
And if you can point me to some webpage that has formulas for calculating other useful information about lens' in general, then that would be most helpful :P
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