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01-28-2020, 03:19 PM   #1
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Sigma (Bigma) 50-500 Lens service needed


I was recently on a photo trip to Bosque in New Mexico to shoot the cranes. While there, I had a lot of trouble with the auto-focus of my Sigma 50-500. The lens / camera struggled to lock-on to focus throughout the week. When I returned home and looked through my photos on a larger monitor, I discovered that many, if not most of my shots with the long lens were not focused properly. The lens does not focus smoothly, whether auto or manually turning the focus ring. I am assuming that it needs cleaned and serviced. Who do you recommend I contact to get this lens checked out?

Thank you,

01-28-2020, 03:37 PM   #2
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Service & Support | Sigma Corporation of America

Sigma lists six options including Sigma itself. The Camera Repair Japan website returns a 403 error...
01-28-2020, 04:27 PM   #3
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If not under warranty

you might consider contacting a craftsman here in Topeka Kansas
119 NE US Highway 24 STE B, Topeka, KS 66608, US

(785) 233-0231

Free Estimates

Classic and Vintage Camera Repair, Digital Camera Repair, Lens Repair,

also Repairing -- Camcorders and all eras of Photographic Equipment and Vintage Audio Visual Equipment

Customer Counter Hours
Mon 12:30 pm – 06:00 pm

Tue 12:30 pm – 06:00 pm

Wed 12:30 pm – 06:00 pm

Thu 12:30 pm – 06:00 pm

Fri 12:30 pm – 06:00 pm

Sat Closed

Sun Closed

he helped me out when my D FA 150-450mm fell apart
01-29-2020, 12:06 AM   #4

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Location: New York
Posts: 4,565
I can recommend Sigma's service center (Ronkonkoma NY, contact info can be found in the prior link provided by boriscleto). My experience with them went perfectly. Most importantly, they fixed the lens correctly, but they also got the little things right such as promptly replying to messages.

Note that my case was covered under warranty so I can't comment on their pricing, and it's only a single data point.


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