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I couldn't find the ideal thread to share a snap of my latest toy - a rather unusual lens adapted to my trusty G5 so I thought I'd start a new thread for all the oddballs
ultra macro lens set up by Mike Kanssen, on Flickr
The lens was sold as a '0.7x to 4.5x c-mount microscope objective' but the connection to c-mount involved a 0.5x relay lens so it only gave half that magnification on my sensor (& vignette badly). I removed the relay lens & jury rigged a fitting using bits I had lying around (PK-T2 outer, to EF-PK adapter to EF-MFT helicoid) For most of the zoom travel I no longer get vignetting & magnification is improved but still not quite reaching the quoted range.
Full magnification gives about 3x with quite good working distance
full magnification in mm (unedited) by Mike Kanssen, on Flickr
Shortly before the minimum magnification setting it reaches infinity focus giving results similar to a 100mm f/9
infinity focus test - shipping by Mike Kanssen, on Flickr
ultra macro lens set up by Mike Kanssen, on Flickr
The lens was sold as a '0.7x to 4.5x c-mount microscope objective' but the connection to c-mount involved a 0.5x relay lens so it only gave half that magnification on my sensor (& vignette badly). I removed the relay lens & jury rigged a fitting using bits I had lying around (PK-T2 outer, to EF-PK adapter to EF-MFT helicoid) For most of the zoom travel I no longer get vignetting & magnification is improved but still not quite reaching the quoted range.
Full magnification gives about 3x with quite good working distance
full magnification in mm (unedited) by Mike Kanssen, on Flickr
Shortly before the minimum magnification setting it reaches infinity focus giving results similar to a 100mm f/9
infinity focus test - shipping by Mike Kanssen, on Flickr