Leica 90mm f2 APO Summicron-M DAG Overhual 3866603
This Leica 90mm f2 APO-Summicron-M Asph Lens (Black), #3866603, is in fair condition with heavy handling wear. I rate it cosmetically a (7+). The focus ring is smooth, but it makes some slight noise. The aperture ring is smooth and the aperture functions properly. The glass is clean and clear with no haze, marks, or fungus. There are a few faint specks of dust inside, but they do not affect image quality. This lens includes front & rear caps. Please refer to the photos for details.
What Our Experts Think
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Professional DAG overhaul restores the 90mm f/2 APO-Summicron-M to peak performance.
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Complete cleaning, lubrication, and calibration of optics and mechanical components.
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Ensures reliable focusing, aperture operation, and overall longevity.
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Ideal for collectors and professional photographers seeking top performance from a classic lens.
Q&A
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Q: What does the DAG overhaul include?
A: Full cleaning, lubrication, calibration, and adjustment of all lens mechanisms.
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Q: Will it affect the originality?
A: No, original parts are preserved to maintain full Leica integrity.
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Q: How long does the overhaul take?
A: Typically several weeks, depending on lens condition.
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Q: Is this suitable for professional photography?
A: Yes, restores professional-grade performance to the lens.
Maintenance Tips
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Store in a dry, cool environment to protect optics and mechanics.
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Clean lens surfaces gently with a microfiber cloth.
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Avoid exposure to moisture and extreme temperatures.
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Handle carefully to protect aperture and focusing mechanisms.
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Schedule periodic professional maintenance to maintain peak performance
Damage 
Loss 
Theft 
