Flat lens panel for De Vere 500 series enlargers, including the 504, 507, 5108, 508H, and 515. These lens boards are blank, with a pilot hole. The blank lensboards can be bored out to any required size. You can have it customized locally or we can do it in our machine shop for a service fee, contact us for your requirements. For lens mount information for specific enlargers, please refer to our DeVere Enlarger Guide website.