An engineer friend of mine asked, "Why does Nikon use grease to lubricate?"

Started 6 months ago | Discussion thread
Robin Casady
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Re: An engineer friend of mine asked, "Why does Nikon use grease to lubricate?"
In reply to larrywilson, 6 months ago

larrywilson wrote:

There are many different types of Engineers, each has a specality such as a Civil Eng., Electrical Eng. or maybe a Mechanical Eng.. The fact remains that a camera should not be throwing oil unto the sensor requiring cleaning over and over. My d700 didn't, my d3s didn't and now my d4 isn't.

I don't think I put too much confidence into an analysis of a camera by the Army Corps of Engineers, nor by some guy driving a train.

Nobody here knows the details of the oil splatter in the D800 and D600. We don't know if it is really oil, silicone lubricant, or something else. We don't know where it is coming from, nor what engineering decisions resulted in the current design.

One thing we do know is that the estimated shutter life went from 150K on the D700 to 200K on the D800. If the cost of that increase is oil splatter for the first 2K shot, it might be well worth it.

Oh, and my D700 did have oil splatter in its early life.

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Robin Casady
http://www.robincasady.com/Photo/index.html

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