D5600 Lens Compatibility Issues

ExpensiveHobby

My sister-in-law recently purchased a D5600 (body only) to replace her D5100. She has the kit 18-55 from the 5100 and an older Sigma DG Macro 70-300 f/4-5.6 Unfortunately, the Sigma will not auto-focus on her new D5600.

She took the body and lens to the local shop she bought the body from, but the sales person only tested a different D5600 and had the same problem. The Sigma works fine on the older D5100 and the 18-55 works on both cameras. I remember reading that other firmware "upgrades" have caused lens and battery issues in the past. There do not seem to be any other reports online of these issues. In fact, everything I have read indicates there should be no difference in the list of lenses which will AF between these two bodies.

Does anyone know of other issues with third party lenses no longer auto-focus with the D5600? Should she contact Sigma in this case?

NSXTypeR

You definitely should contact Sigma. Nikon doesn't play nicely with 3rd party lens makers, and I can see this being an issue with older Sigma lenses and newer Nikon camera bodies.

Unfortunately, unless Sigma puts out a newer 70-300, I don't see this problem being resolved any other way, especially if it's not new enough to be compatible with the Sigma dock.

On the other hand, if there's manual focus, you might be able to still shoot the lens in all manual mode.

ExpensiveHobby

The lens can be manually focused, but two children will not agree to sit still long enough for that.

I'm just surprised I have not seen any word of these issues elsewhere.

PB_PM

It's not uncommon for third party lenses to need a firmware update. For the older models, that don't come from the Art or Contempary line from Sigma, that means sending the lens off to Sigma.