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The new ZEISS ZF lenses went to test for resolving power recently. Attached to a Nikon F6, which was mounted on a Sachtler heavy duty tripod, we exposed our Eastman resolution test chart onto Kodak Imagelink HQ film. The best we had ever achieved before with any SLR lenses was 250 lp/mm.
The new Planar T* 1.4/85 ZF achieved that same resolution at f/5.6, and even down to f/2.
The new Planar T* 1,4/50 ZF went even further: It reached 320 lp/mm in the aperture range from f/5.6 to f/2.8, and 250 lp/mm at f/2.
The resolution test chart was placed in the center of the frame, and the negatives were inspected directly on a research microscope. No other process involving projection (through even the best enlarging lens) or digitizing (in today’s best currently available scanners) is capable of transferring such high resolution values.
What we are saying is this: Carl Zeiss lenses are capable of capturing enormous amounts of information, if required, and will not be the limiting factor in the imaging process. Knowing that the lens you are using is the strongest link in the chain always inspires confidence, and may be critically important in some cases. |
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February 2006
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