1 Short description: Enlargement lymph nodes. 2  ICD-9-CM 785.6 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 785.6 should only be used for claims with a date of service on or before September 30, 2015.
Freebase (0.00 / 0 votes) Rate this definition: Hyperfocal distance. In optics and photography, hyperfocal distance is a distance beyond which all objects can be brought into an acceptable focus.
Calculate the hyperfocal distance for the lens focal length and aperture. The picture below shows how to use DOFMaster to calculate the hyperfocal distance for a 50mm lens at f/16, using 0.025mm for the circle of confusion.