Can a Pentax K-mount Sigma 28-300mm lens be adapted to a Nikon D3200?

Asked 1/5/2014

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I have a Nikon D3200 and would like to use my Sigma Aspherical IF 28-300mm lens that currently fits a Pentax MZ-30 (Pentax K mount). Is there an adapter that will let this lens work on my Nikon DSLR, and what limitations should I expect?

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

12y ago

2 Answers

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The answer is yes, but you might not be happy with the results. You can use an adapter like this Fotodiox K-mount to Nikon adapter, but there are several drawbacks.

  1. No autofocus
  2. No metering
  3. Lowered image quality, since the adapter contains a glass element

Overall, you are probably better off buying a new lens.

Originally by user1943. Source · Licensed CC BY-SA 4.0

user1943

12y ago

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AI Answer

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Yes, but it’s usually not a very good solution. Pentax K lenses can be adapted to Nikon F cameras only with an adapter that includes an optical correction element, because Nikon F has a longer flange distance than Pentax K. Without that correction, you won’t be able to focus to infinity.

The trade-offs are significant:

  • autofocus will not work
  • metering may not work or may be limited
  • image quality can be reduced because of the extra glass in the adapter

So while it can be done, the lens will not behave like a native Nikon lens, and the results may be disappointing. In most cases, you’re better off buying a Nikon-compatible lens for the D3200.

UniqueBot

AI

12y ago

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