Hello to you all,
I bought a Kienzle 6x9 enlarger on E bay recently. The enlarger has been modifie,d there is no rounded dome on top but a rectangular box with fan and 24 V halogen lamp. Being familiar with enlargers with an opal lamp, I can understand, that a halogen lamp is a better solution. The only problem is, that there is a yellowish flter in this lamp box. It canīt be removed. Before contacting Kienzle I would like to ask you all what the function of this filter is in a B&W enlarger. I have a lot of experience in B&w phtography but from a past age I think. My experience dates back from those baryt times. Despite this experience I havīnt the faintest idea of what this filter could be. The only guess I have is that it is part of af colour filter sytem. I appreciate what vcer help you could provide.