Copyright has been restricted in the Copyright Act for practical and societal reasons. The most significant restrictions regard reproduction for one's own use and the so-called right to quote.
A natural person may photograph a published photographic work or photograph, as long as this happens for private use, but a legal person may not. Private use is no longer the case if, for example, post cards are manufactured from the published photograph, or if it is published on an internet blog. This always requires permission from the author of the work. The author's permission is also required, when it is decided to produce a blow-up of any photographic work or photograph for a public space.
The right to quote means that quotations of a published work may be used in accordance with good practice and to the extent required by the specific purpose. The quotation must be accompanied by the name and author of the work being quoted, in accordance with good practice. The used quotation must have an appropriate connection to the work the quotation is being used in. Also a photograph can be quoted, if such a context exists.
Images of a published photographic works or photographs relating to a text may be included in a critical or scientific presentation and newspaper or journal, when reporting current affairs. A thesis, for example, is such a scientific presentation.
A photographic work and photograph, which belong to a collection or are displayed in public, or are offered for sale, may be photographed for a catalogue or other communication relating to an exhibition or sale.
The photographic work or photograph, which has been published, may be exhibited publicly in an educational context. It is therefore permissible in connection with college teaching, for example, to illustrate the subject being taught by presenting an image of a published photographic work or photograph. This provision does, however, not permit reproduction.