Question about Sigma EM-140 for Nikon TTL Ring Light Flash

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Nikon D600 not recognizing the Sigma EM-140

I bought a Nikon D600 to upgrade from an old D100. The D600 does not recognise the Sigma Ring flash , if I turn the camera on first and then the flash. However if I turn the flash on first and then the camera it does recognise it . I never had that issue with the D100 . I dont understand why I am having the recognition issue with the D600 . Could you please offer possible explanation ??

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cammedic
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SOURCE: dust inside my sigma lens

Zoom lenses are kind of like a tire pump. They will draw air in (and out) when zoomed. The longer the throw of the zoom, the more air moved. You can try Sigma, they may cover it, but...

A small amount of dust should have no effect on the quality of your images, but I would be concerned about it being transferred to your camera's image sensor over time. ( I assume you are using the lens on a digital body )

Posted on Oct 02, 2008

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SOURCE: sigma 170-500 f5.6 not focuing at 500mm

I sent my 135-400 to these guys about 18 months ago- speedy service, and quite good rates :)

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Posted on Mar 09, 2009

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SOURCE: my nikon d60 does not recognize my sigma 105mm lens

Hi I had a similar problem with a 50mm prime and I fixed it by locking the aperture ring on the lens in place.

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SOURCE: broken zoom ring on sigma telephoto lens

HI I need to no what fit the lens is

Posted on Aug 08, 2009

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SOURCE: I have been using a Sigma DG 70x300 lens on my Nikon D-60

This lens has a motor fitted to it to work on a D60 have you moved the A/M switch to M if not the lens is faulty and will need repair

Posted on Jan 01, 2010

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