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Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
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F1.4 options is the Minolta Rokkor x any good?
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Posted: Tue Jun 21, 2011 10:49 pm
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Posted: Tue Jun 21, 2011 10:49 pm
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walter g wrote:
dnas wrote:
The build quality is better on the MC than the MD, but the MD is lighter and looks more modern and "clean".



Yes, But the MC lenses aren't multicoated and are more prone to flare.
I've also seen tests that show the MD versions are sharper, but I haven't
done the tests myself so I can't say for sure that's true.


This is not quite correct. For example, ALL of the later MC Rokkor lenses with the rubber focus grip, are multicoated, including the one in the picture above. This includes all of the "MC Rokkor -x" lenses imported into North America.

The multicoating of the MC Rokkor lenses evolved over time. I haven't checked for mulicoating, but I have a number of MC Rokkor -PF 58mm F1.4 lenses, which I could check..... I can then report which serial numbers have multicoating and which ones don't. The possible lack of multicoating on earlier MC Rokkor -PF 58mm F1.4 lenses may explain why the contrast is not as good as the later MC & MD Rokkor 50mm F1.4 lenses.
Whatever the case, I think the optical formula on the MC Rokkor -PF 58mm F1.4 lenses is superior, taking sharpness and lack of CA into account.


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Posted: Thu Jun 23, 2011 11:55 pm
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Posted: Thu Jun 23, 2011 11:55 pm
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Here are some tests I did:


Center:
Canon FD 50mm F1.4 SSC. Center at F1.4:


Minolta MD Rokkor 50mm F1.4 Center at F1.4


Minolta MC Rokkor 50mm F1.4 Center at F1.4


Minolta MC Rokkor 58mm F1.4 Center at F1.4




Corner:
Canon FD 50mm F1.4 SSC. Corner at F1.4:


Minolta MD Rokkor 50mm F1.4 Corner at F1.4


Minolta MC Rokkor 50mm F1.4 Corner at F1.4


Minolta MC Rokkor 58mm F1.4 Corner at F1.4
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