[MF3D.FORUM:417] Re: fl/30

[Tloc54452@xxxxxxx]

In a message dated 2000/04/06 00:06:03, bglick@xxxxxxxx writes:

>     Thank you for helping out.... so you are saying, in the example you
>cited, 78mm/150mm, or approx. 1/2, * 2.7 or 1.35, right?  So if I use this
>figure (1.35)  in place of 2.7 deviation in John B's formula, you feel
>it will provide the best 3d base, right?

>      What this actually does, vs. using the same 2.7 at all times is,
>in the case of the 150mm lens, it cuts the base in half.  It kinda of makes
>sense, but I don't have enough experience to know for sure...

I think what David was saying is what Mannle says - keep the deviation
to no more than 2.7 mm.  So if you double the focal length of the camera
lenses, you'll have to cut the stereobase in half or double the distance
to the nearest object.  Nicht wahr?

John B