Patent ID: 7623781

Claim:
An image shooting apparatus, comprising: a bi-splitting device for splitting incident light into two split light portions, which bi-splitting device can be located at a position other than a position where a focal position of a main lens on which light from an object to be image-captured is incident coincides with a focal position of a relay lens which guides the split light portions; a tri-splitting device for splitting the incident light into three split light portions, which tri-splitting device can be located at a position other than the position where the focal position of the main lens on which light from the object to be image-captured is incident coincides with the focal position of the relay lens which guides the split light portions; the bi-splitting and tri-splitting devices being configured such that all of the incident light that is split into two split light portions by the bi-splitting device is split into three split light portions by the tri-splitting device; and an exchange device for exchanging between the bi-splitting device and the tri-splitting device.