Rodenstock 75mm f:4,5 Apo-Rodagon-D 2x

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Category: Photography-Medium-&-Large-Format-Accessories-Large-Format-Lens-Accessories, rodenstock

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Apo-Rodagon-D lenses are designed for the highest possible imaging quality for close-ups at just those scales around 1:1 where even the best enlarging lenses begin to show their weak spots. Thus their typical applications are transparency duplication, the preparation of internegatives and – together with the Modular-Focus helical mount (see my other auctions for one of these) – macro photography. Furthermore, as well as for photography, they can also be used as high resolving optical systems for premium scanners. The 6 element, apochromatically corrected
lenses feature high contrast and sharpness right up to the picture corners with practically no color fringes. Distortion is corrected almost to zero
and cannot be seen even in critical subjects with straight-lined structures. The optimum working aperture is between f/5.6 and f/8. This is worth mentioning because the effective aperture of a lens focused for a scale of about 1:1 is approximately two f-stops smaller than the nominal aperture and therefore stopping down to smaller apertures than nominal f/8 would result in visible blur because of diffraction.

Recommended scale range: 1.2x - 2.5x
Max Film Format: 6x7mm"


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