segon

Got the new camera today.

There is only one camera store in Bermuda. And they don't have many items in stock. But the staff is very helpful and professional.
I talked to them this morning. They are going to replace my defective D800 with a brand new one on Monday. Great!

Nikon service requested all RAW images that I took since I got the camera back. Other than that no questions were asked.

After almost 2 months I got my D800 back. Made 40 shots at f22 to make sure the problem was resolved. It was not. The first oil drop happened on shot 17. The second one on 28th and the third one (the biggest one) at the last shot.
I guess I am stuck with a defective camera. Nikon Service cleaned up the sensor but did not fix the issue.
What do I do now? I am going to talk to the store that sold me the camera. But I doubt they will exchange it.

Yes, I did. I hope it's nothing serious!

Anyone got any views on the Sigma 105's performance underwater?

I used Sigma 105mm macro for about a year. It was a bit slow to focus underwater with my D90. But I got used to it and actually I loved the lens. It's been a year since I switched to Nikon 105mm micro VR. After my first dive with Nikon 105mm I sold the Sigma lens. There was no way back. Nikon is simply better.