I agree that a haze can be produced when the polisher is run too fast and the plate heats up. You should buy an orbital polisher with variable speed adjustment, such as the Bosch model 3725DEVS. This model is available at toolsforless.com for less than $120. www.toolsforless.com…Polisher. The polisher should be set it at the lowest possible opperating speed.When polishing dry with powdered rouge you may get some haze after prolonged polishing. This haze will be removed when the plate is subsequently polished with lampblack.Daguerreotype plates thus polished react more rapidly to iodine fumes producing a thicker coating. It may be necessary to reduce the fuming time in order to bring the contrast back up to the desired level. You may also find that RO polished plates are up to twice as sensitive to light.Try reducing the exposure time to prevent haze from forming in the shadow areas of the image.