I need to get an enlarging lens for my 4x5 negs. Is there really a difference between the different brands? Nikon is so much cheaper than Schneider and Rodenstock. Is there a quality difference in 6 group vs. 4 group designs? What about age? I am thinking of buying an older 135mm Schneider Componar. It has a mounting flange with 4 screw holes so I don't even know if I can mount this on my Omega D5-XL enlarger. But it's clean and at a reasonable price. Any advice is appreciated. Thanks,
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