What “Fully Serviced” Means for a Vintage Lens – and What to Check Before You Buy

Most Soviet and vintage lenses are 40–70 years old. The glass is usually fine, but the mechanics age: grease hardens, oil moves where it should not, and dust gets inside. That is why many lenses in our shop are marked [Fully Serviced]. Here is what that means and how to check any vintage lens yourself.

Why old lenses need a service

• Hardened grease. The original factory grease dries out over the decades. The focus ring becomes stiff or uneven, which is especially annoying for video.
• Oil on the aperture blades. Old grease can separate, and the oil slowly reaches the aperture blades. Oily blades stick and close slowly or not at all.
• Dust, haze and fungus. After decades in drawers and camera bags, lenses often collect dust, haze or even fungus on the glass.

What our full service includes

1. The lens is completely disassembled and the old hardened grease is removed.
2. It is lubricated with new, temperature-resistant grease (for example Castrol LMX Li-Komplexfett or Molykote 33 Medium). It does not melt if the lens is left in a car on a hot summer day and does not run onto the aperture blades.
3. The aperture blades are washed to remove the old grease.
4. All glass is cleaned of dust or mould (if any).
5. The lens is assembled according to the instructions, exactly as it is done at the factory.

The result is a lens with smooth focus from start to end, dry and snappy aperture blades and clean glass – ready to use, not a project.

Checklist: how to inspect a vintage lens

• Focus ring: turn it from minimum focus to infinity. It should move smoothly, with even resistance and no grinding.
• Aperture: open and close the diaphragm several times. The blades should be dry (no shiny oil) and move freely.
• Glass: shine a flashlight through the lens from the back. Look for haze (a milky layer), fungus (thin “spider web” lines) and dust. A few specks of dust are normal and do not affect photos; haze and fungus do.
• Scratches and cleaning marks: small marks on the front element rarely show in photos, but deep scratches can reduce contrast.
• Mount: check that the thread or bayonet is not damaged and the lens reaches infinity focus on your adapter.

Buying from us

Every lens in our shop is inspected and photographed in detail, and the description lists its real condition. If an item does not match the description or is damaged in transit, please contact us within 48 hours of delivery – see our returns policy for details. Have a question about a specific lens? Contact us.

See all serviced lenses in stock →