Which is the correct sentence?

[Tan Elaine]

1. Do you know who the inventor of the camera is?

2. Do you know who is the inventor of the camera?

Which is the correct sentence? I think it is the first one.

Thanks.

[5jj]

Of the two, I prefer the first, though both are possible.

I'd probably say: Do you know who the inventor of the camera was?
or: Do you know who invented the camera?