B&W 52mm Close-up NL +4 Glass Lenses are the simplest and least expensive method of close-up photography. Have you ever wished that your lens could focus closer than it does? Imagine that you could put a magnifying glass in front of your camera's lens. With B&W Close-up lenses, you can dive into the world of macrophotography with a minimum of expense and with a maximum of confidence.

Close-up Strength for NL +4
The +4 diopter of this close-up lens is the right power for closer focusing with a 50mm lens (up to approx 1:3). With an 85mm (up to approx. 1:2.1) and 100mm (up to approx. 1:1.9) telephoto lenses, it is the highest power, and it should be used with the main lens stopped down to at least f/8.

These lenses can be used individually or in any combination to achieve ultra-close focus

The maximum magnification achieved with these attachments will depend on the focal length of your lens as well as the actual close focusing capability of that particular lens

A +1 close-up lens will allow you to focus your lens somewhat closer than it already does; a +2 close-up lens will allow you to focus closer than the +1; a +4 lens will allow you to focus even closer than a +2

A +1 combined with a +2 will equal a +3, while a +2 combined with a +4 will equal a +6, and so on