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closeup\n\nIt wasn't literally the first Polaroid picture.Thathad been taken months before in the lab.Butit was the \"official\"first,the one that made thefront pages.  \nThirty years ago,this February 21st,aphotographer from a Boston daily focused onDr.Edwin Land with a bulky camera.Theplace was the Hotel Pennsylvania,now theStatler Hilton,in New York City and Dr.Landwas demonstrating his latest invention for theOptical Society of America.  \nCLOSE-UP is published by PolaroidCorporation,Cambridge,Massachusetts.Subscriptions are available at no cost.Correspondence should be addressed to:Editor,CLOSE-UP,546 Technology Square,Cambridge,Massachusetts 02139.Permis-sion to reprint articles may be obtained bywriting the editor.Change of address:pleasesend both old and new address to ensurereceiving magazine regularly  \n60 seconds after the shutter clicked,Dr.Landpeeled two pieces of paper apart andshowed his audience a finished 8×10 photo-graph of himself.After years of research anddevelopmentDrLand's epoch making con-tribution to photographic technology hadmade its bow.A year after that the firstPolaroid camera,the Model95,bulky bytoday's standards but instant nevertheless,went on sale in a Boston department store.  \nOther Polaroid milestones have been flashingby ever since:pack film,instant positive/negative film,Polacolorfilm,the SX-70 Cam-era series which,camera and film combined,amounted to a system of interconnectedrevolutions and breakthroughs in the art.  \nThirty years into the instant photography eraand Polaroid is still trailblazing.This issue,first of our 30th anniversary year,tells youabout some of the newest milestones.  \n# Professional visual aidsusing the Polaroid MP-4Land Camera\n\nby Hal Denstman  \nPhotographers,artists,scientists and educa-tors have grown to rely heavily on Polaroidprojection films and slide-making equipmentas effective visual tools.The flexibility.rapidimaging capabilities and overall quality ofPolaroid's light-sensitive materials allow highquality images to be produced on the spot,atmodest cost,and without the extensivephotographic facilities required for wetprocess photography.  \nBut there's far more!Beyond the obviousbenefits offered by Polaroid self-developingtransparency materials,such as Type 46-Lcontinuous-tone and Type 146-Lhigh-con-trast films,lies an exciting area wherePolaroid materials and equipment can beintegrated with conventional color films andprojection formats.Many of the time-consum-ing mechanical manipulations associatedwith a-v production are possible in real timewith Polaroid equipment and materials,withonly minor alterations in methodology,a will-ingness to experiment,and a healthy respectfor the capabilities of the MP-4 multipurposecamera.  \nThe MP-4 has far reaching applications inmany areas of photography,including pho-tomacrographyphotomicrography,and thereproduction of flat art as well as in the pro-duction of high quality visual aids.With inge-nuity and a few useful accessories,the MP-4can become a dynamic production system,using conventional color transparency filmsas well as instant-imaging products for beau-tiful presentations.  \nMP-4's modular design is of enormous value.In the area of magnification control,for exam-ple,an important aspect of close-up photog-raphy and precise multiple-image slide-making,equipment stability is amajor con-sideration.The MP-4's macro extensions aresturdy,positive locking,and easy to install.With an array of lenses ranging from 17 to135mm,the user can bridge the gapbetween normal reductions and extrememagnification,in seconds.Creativity andsubject presentation are not encumbered bymechanics.  \nHal Denstman,technical editor ofIndus-trial Photography and previous contributorto Close-Up,is director of visual services,Lockheed Electronics Company.  \nFig.1  \nFig.2  \nOrigina prints for visual aids  \nPolaroid prints make excellent \"flat art\"orig","cbCainxiemuEF9Zt","https://ap.wps.com/l/cbCainxiemuEF9Zt","pdf",4000877,17,"English","# Message from the Editor\n# closeup\n# Professional visual aids using the Polaroid MP-4 Land Camera\n## Origina prints for visual aids\n## Multiple image masking","[{\"question\":\"What historical moment does the editor describe in the opening message?\",\"answer\":\"The editor recalls an early Polaroid image that became the “official” first picture for front pages, taken after an earlier lab photograph.\"},{\"question\":\"Why is the Polaroid MP-4 considered useful for producing visual aids?\",\"answer\":\"Its rapid imaging capabilities, overall image quality, and flexible integration with conventional color films and projection formats support on-the-spot high-quality results.\"},{\"question\":\"How does the MP-4’s modular design help with close-up work?\",\"answer\":\"Its magnification control and sturdy macro extensions, along with a lens range from 17 to 135mm, enable stable, precise multiple-image slide making and extreme magnification quickly.\"}]","closeup - Editorial Message - CLOSE-UP | PDF",43]