The BR-2A enables you to mount a 52mm front thread lens (eg. Nikkor 50mm lens) in reverse on the Nikon SLR / DSLR or PB-6/5/4. Nikon BR-2A changes your lens into a macro lens with just a fraction of the cost that you need to spend on a macro lens.
Nikon BR-2A can be used with any lens having a 52mm filter thread, however if the lens is to be mounted directly to the camera via the BR-2A,the lens should have a focal length of between 20 and 58mm.
Lens used should have aperture ring in order to control the amount of light entering the lens. Nikon AF, AFD, Ai, Ais lenses are recommended. Nikon AFS G lenses without aperture ring are not recommended.
Magnification Ratio with different lenses
- Nikkor AF 20mm f2.8 : 3.4X
- Nikkor AF 24mm f2.8 : 2.5X
- Nikkor AF 28mm f2.8 : 2.0X
- Nikkor AF 35mm f2 : 1.4X
- Nikkor AF 50mm f1.4 : 1/1.1X
- Nikkor AF 50mm f1.8 : 1/2X
- Micro Nikkor AF 60mm f2.8 : 1/1.2X
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