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mountainman

What do these numbers mean?

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OK, now that I've been thinking about all of your input on the wide-angle lenses, I looked into some other kinds and am wondering this: what does the number by the lens mean? I see Diamond .3, Kenko .43, and Titanium .45 to name a few.

Can someone explain what the numbers mean?

Thanks.

:)
http://www.brandonandlaura.com

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the numbers are the amount of angle the lens sees. .65 is just slightly wide angle (great to shoot RW with) .5 is a medium wide angel (great all around that you want some distance with. .43 is considered to be Ultra wide angle and is nice with 5-6 feet distance at the max for good shots. The .3 is great for arms reach flying since its an extremely ultrawide...

What the numbers mean I forget but just note a Kenko .5 is not the same angle as a Promaster .5 and neither of those match a Sony .5...
Yesterday is history
And tomorrow is a mystery

Parachutemanuals.com

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Hello there,

The numbers are conversion factors, for example:

Your camera lens is a 50mm, if you attach one Diamond .3 you will have a 15mm (50*0.3=15).

If the lens have a conversion factor like .3 or .45 it will open you angle of view (wide angle), if the conversion factor is like 2 or 3 it will reduce or angle of view (zoom in).

I hope it helps you.

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