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Visa and Invitation Letters

Apply now for your Visa! 

If you need a travel visa, begin the visa application process now! You need to allow a minimum of 6 weeks processing time. Advance travel planning and early visa application are important, since visa applications are subject to a greater degree of scrutiny than in the past. See links below for more information about Visa and passport requirements for travel to Australia.

Online Visa Applications are mandatory for all Australian visitors. Up-to-date immigration information regarding short business visas (including conferences), can be found at:

Letters of Invitation

FOR CONFERENCE CHAIRS, TECHNICAL COMMITTEE MEMBERS, and AUTHORS: Individuals requiring letters of invitation to obtain travel visas must be listed on a paper or in the programme to receive an invitation letter. If you are listed in the conference programme, and are in need of an Official Invitation Letter from SPIE for visa application purposes, please submit the completed Invitation Letter Form and send it to


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