Gosford Micrographics has earned a first class reputation for its high standards in producing 16mm microfilm, 35 mm microfilm,105mm microfilm or microfiche and aperture cards from 20+ years of experience within the Australian marketplace. We all know microfilm is a tried and proven method for the preservation of documents, DAs, Minutes, plans and drawings from A5 size documents to A0 drawings, as it has already passed the test of time.
All documents up to A3 size are microfilmed on high-resolution planetary cameras, with a 16mm roll of microfilm containing up to 3000 frames. The advantages of our clients microfilming with planetary cameras provides for more cost-effective conversion of film to electronic images should it be required later.
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Engineering drawings, drainage plans, maps and architectural plans up to A0 size are microfilmed onto to 35mm roll film. With plans and drawings the 35mm roll film can then be either inserted into microfilm jackets or mounted onto microfilm aperture cards where, each drawing can be individually indexed. The microfilm jackets (originals) can be duplicated onto diazo microfiche for every day use and distribution to other offices.
Newspapers, Council Rate and Valuation books, old Minutes, Hansard, Manuscripts, and many large bound documents are microfilmed onto 35mm roll film. The 35mm film (original) is then duplicated onto either vesicular (positive or negative) or silver halide film that is used for every day use and distributed to other offices.
The 35mm film has a superior reproduction quality when it is being converted to electronic images over both 16mm and 105mm for handwriting and photographs.
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The process of creating aperture cards is same as for 35mm roll film - preparation of the documents, filming onto 35mm roll film (dependent on the size of the document depends what camera and table is utilised), processing the film and checking the film. The indexing information is typed onto the card in the sequence the film was taken. The frame that matches the title on the card, is cut from the roll of film and inserted into the slot in the aperture card. The frame is quality checked to esnure it matches the card title.
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Normal usage for 105mm film (step and repeat microfiche) is for technical manuals, operation handbooks, troubleshooting flow diagrams, loose council minutes, etc. The images are arranged permanently in a grid pattern. The 105mm film usually has a coloured header that contains identification information (title). Step and Repeat microfiche can hold up to 300 frames.
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Microfiche Jackets are 4"x6" plastic sleeves designed to hold either 16mm and/or 35mm film. This allows the grouping of related data in a single logical record. Council Minutes, HR files and Council Building & Development Applications use these microfiche jackets to facilitate filing and easy retrieval of related documents. There are duplicated microfiche jackets that have a purplish/bluish tint to them for everyday use.
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| Film Type |
16 mm
|
35 mm
|
105 mm
|
| Silver Halide |
X
|
X
|
|
| Vesicular |
X
|
X
|
|
| Diazo |
X
|
X
|
X
|
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