An accessory equipment of picture-taking for freshwater benthos and substrates

摘要

The present design relates to the sediment and benthic shooting aids in freshwater, its purpose is vulgar and writings of freshwater that can be taken easily sediment and benthos to conventional cameras instead of expensive underwater camera from the desalination of low water depth creature is to provide an image pickup auxiliary tool, is arranged so that the ruler in the upper surface is the handle portion is formed through each of the having an open predetermined size, the upper end of the wall facing as a box shape, can determine the size of the subject being shot along the inner front end that is provided; The wall is characterized in that the transparent chain.