The LCM-12MP Macro series are designed for high resolution applications where a short working distance is required. Please note these lenses can focus closeby but can't focus on infinity! The 12MP lens is designed for cameras with a 1.1" sensor or smaller, to create sharp images. The LCM-12MP Macro series has multiple focal lengths to assure the right working distance can be met for each application. The iris and focus are adjustable and can be fixed by a screw.
The following tables shows for the 25MM, 35MM, 50MM and 75MM focal length lens the field of view, when making use of a close-up ring. For different close up rings it shows the field of view for the minimum working distance (WD) and the maximum working distance (WD) of this lens in combination with the close-up ring. Check out the tables to decide which focal length and close-up ring combination is the best for your application.