[LargeFormat] Shutterless lens usage

[LNphoto]

On Monday, October 20, 2003, at 05:55  PM, Vincent Dobson wrote:

>
>
>
>
> ::>This is how they make photographs of busy downtown streets look
> :>empty. Make
> :>many many tiny exposures (1/250) over a period of hours onto the
> :>same sheet
> :>of film, accumulating perhaps the equivalent of a few seconds of 
> exposure
> :>(plus reciprocity.) The buildings and streets that are permanent
>
> Jim,
>
> How do hey keep from jarring the camera with so many re-cockings of the
> shutter.  Is there a special lens?
>
>

heavy camera.  Heavy tripod.   Lots of sandbags.  there are also "press 
type" shutters that are self cocking.  see skgrimes.com