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SUMMARY OF CUKRKNT KKSEARCHES RELATING To 



The camera can be extended to any required distance up to its 

 full length of 100 cm., as each carrier can be moved independently of 

 the other. The bellows, besides being very substantially made, has 

 additional wire supports, two in number, to prevent sagging when fully 



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extended ; the lower portion of the bellows is hinged to the focusing 

 screen, so that upon the withdrawal of two bolts which keep the upper 

 portion in position, it can be retracted in order to observe the image 

 from the front whilst the necessary adjustments are being made. Two 



