Bausch & Lomb Rapid Rectilinear lens... macro configuration
This is an 1891 vintage Bausch & Lomb 4x6 Rapid Rectilinear lens in a Unicum shutter, rigged for macro shooting using an internal lens cell from badly damaged 7x35mm binoculars mounted on the front. The RR lens has several empty 52mm filter rings flange-mounted to the back, and fitted to a modified T-mount adapter. This is on the front of a short bellows unit from a Spiratone Bellow-Dupliscope slide copier. Maximum extension from the camera lens mount to the front of the auxiliary lens on the RR is about 5 inches. The Rapid Rectilinear is incapable of producing macro images without an outrageous amount of extension, unless it's fitted with a supplemental lens, as shown here. I tested the set-up on my home-made "night shooting" macro bracket. The RR lens apertures run from f/8 to f/128. Best results were achieved at f/64, but the depth of field was exceedingly shallow. A "mini-mag" flashlight was pre-aimed at the focal point to provide enough illumination for focusing. The shutter of the RR lens was left open using the "T" setting, with the exposure made by the Nikon D60 body. Here's a test image taken with this setup:
www.flickr.com/photos/61377404@N08/27649238241/in/datepos...
DSC-1203
Bausch & Lomb Rapid Rectilinear lens... macro configuration
This is an 1891 vintage Bausch & Lomb 4x6 Rapid Rectilinear lens in a Unicum shutter, rigged for macro shooting using an internal lens cell from badly damaged 7x35mm binoculars mounted on the front. The RR lens has several empty 52mm filter rings flange-mounted to the back, and fitted to a modified T-mount adapter. This is on the front of a short bellows unit from a Spiratone Bellow-Dupliscope slide copier. Maximum extension from the camera lens mount to the front of the auxiliary lens on the RR is about 5 inches. The Rapid Rectilinear is incapable of producing macro images without an outrageous amount of extension, unless it's fitted with a supplemental lens, as shown here. I tested the set-up on my home-made "night shooting" macro bracket. The RR lens apertures run from f/8 to f/128. Best results were achieved at f/64, but the depth of field was exceedingly shallow. A "mini-mag" flashlight was pre-aimed at the focal point to provide enough illumination for focusing. The shutter of the RR lens was left open using the "T" setting, with the exposure made by the Nikon D60 body. Here's a test image taken with this setup:
www.flickr.com/photos/61377404@N08/27649238241/in/datepos...
DSC-1203