A Few Practical Needs in the Field of Projection

Arthur H. Gray

Some of the present day major problems of the projectionist and the needs for improvement in certain phases of projection practice are not new problems or new needs. That they are not new, however, should make them of no less concern to us, so long as they continue to exist, than should new developments of no greater import.

Print ISSN
Published
1927-09
Content type
Original Research
DOI
10.5594/J13149