Which 28-75mm VC lenses wear to brass?

[Kiyatkin]

Basically what I am asking is which lenses are brass painted with enamel. I know Ultron 35mm is like that. as is the Nokton 50mm 1.5. Any others?

[chrishayton]

In my experience all the 28's, 75mm 2.5, 35mm 1.2. The 50mm f2.5 should do too as I believe that its painted too.