Thank you for your comments.
Waldo, my cellSens and Autoquant ran out, now I have Hyugens for 30 days.
I am using the Nikon UV-2B cube, you can find the info on the following link:
http://www.microscopyu.com/articles/flu ... index.html
Ultraviolet Excitation Filter Block UV-2B Specifications:
Excitation Filter Wavelengths: 330-380 nanometers (bandpass, 355 CWL)
Dichromatic Mirror Cut-on Wavelength: 400 nanometers (longpass, LP)
Barrier Filter Wavelengths: 435 nanometer cut-on (longpass, LP)
I hope to have soon the funds to order the filters with the wavelenght that you gave me.
Rogelio