Nikon Coolscan LS-4000 Mirror Cleaning Issue: (Before and After)

[Rorystreet91]

I cleaned the mirror of an LS-4000 with 99% isopropyl alcohol, and now highlights are blown out. What can be the issue? If I place the mirror the other way up, it should duplicate the image, like I did the first time but now it seems fine with the exeption of the highlights... (I cleaned both sides of the mirror.)

 

[John Wiegerink]

Why did you clean both sides of the mirror?

 

[brbo]

but now it seems fine with the exeption of the highlights...

Well, no, it’s not just highlights. The entire image has more exposure (as this is obviously a negative film, that means that film is getting less light at scanning which would track with less light bouncing arround with clean mirror).

You obviously have a problem in scanning software. Perform a calibration routine manually if your software doesn’t do it automatically.