P3D Re: matched optics

[koganlee@xxxxxxxxxxxxx]

On 10/22/98 17:19:22 you wrote:
>
>The above comment and reply makes me wonder about something. 30 years ago,
>if you bought two cameras, same model and same lenses, there might be a
>problem with the optics being matched well enough for stereo. However, I
>think that these days, with the highly technical, complicated and automated
>production equipment, perhaps lenses are so well manufactured that they are
>matched well enough.
>
>Any comments?
>
>RM
>
>
>
>

About a year ago I bought two 120mm Apo-Symmar (normal configuration) 
Schneider view camera lenses. I asked them to match them for me at the 
factory. I don't know how many they tested, but the measured focal lengths 
were 123.6mm, so most likely they are not all exactly the same.

David Lee


------------------------------