RE: Scouting cotton with EIR

[Clive Warren <Clive.Warren@xxxxxxxxxxxxxx>]

At 10:35 am +0200 20/6/00, Otto Giesenfeld wrote:

>--On den 19 juni 2000, 17:48 -0400 Sarah Morgan <sarah_morgan@xxxxxxxx>
>wrote:
>
>> Barry,
>> I am currently doing my thesis on taking small plot photographs from
>> approx 10 feet high using EIR film and comparing them to aerial photos of
>> the entire research field.  I am photographing forages with various
>> Nitrogen rates and have had a hard time working out the logistitcs of
>> small plot photography.  Getting high enough isn't the problem but
>> focusing the picture at the desired height has provided opportunity for
>> much invention.  I am currently working with a 10 foot ladder and a
>> monopod clamped to the top extended out over the plot area.  I am still
>> having trouble with the angles and focusing logistics and my first set of
>> photos primarily involved me leaning over the the plot with someone
>> steadying the ladder.  If you come up with any better ideas please
>> contact me as I will do the same.
>>
>
>What about securing the camera to one end of a long pole, and mounting a
>spirit level at some place near the other end. As long as the spirit level
>was levelled, the camera would always point in a direction that was off
>from vertical by the same amount (for example zero degrees). Focusing is of
>course no problem when the distance is known. But the camera would have to
>allow some kind of electronic release mechanism.
>
>Otto Giesenfeld


There is a commercially available solution for this type of photography
which consists of a counterweighted pole and long electrical cable for
electronic shutter release.

Have seen photos of the setup and it looks workable.  Have no idea of the
manufacturer or current availability but maybe a quick web search will turn
something up for you.


All the best,

             Clive   http://www.cocam.co.uk
                     Photographic Services, Filters and Equipment, Infrared FAQ


*
****
*******
******************************************************
*  To remove yourself from this list, send:          *
*         UNSUBSCRIBE INFRARED                       *
*       to                                           *
*         MAJORDOMO@xxxxx                            *
*----------------------------------------------------*
*   For the IR-FAQ, IR-Gallery and heaps of links:   *
*  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
******************************************************