Big picture extends measuring device

The utility model belongs to the technical field of the measuring technique and specifically relates to relate to big picture extends measuring device, the device has one and measures the camera lens, be equipped with the subregion in the place ahead of measuring the camera lens and extend measured module, this subregion extend measured module will measure frameing of camera lens distinguish cut into the polylith and whole or local shift to extend frame, the subregion extend in the measured module through the speculum will measure frameing of camera lens distinguish cut into the polylith and whole or local shift to extend frame, the speculum has the adjustability. The utility model discloses a to measure frameing of camera lens distinguish cut into the polylith and whole or local shift to extend frame, the article image of the foreign of frameing of measuring the camera lens is seized to the extensible, a plurality of regions once focus on seizes the image, need not to remove the article or measures the camera lens, reduces and removes the error, promotes measurement of efficiency, especially, be fit for longer, broad article surveying work, simple structure, investment cost is low, easy operation.