<p>I know this is an old thread .I repair lenses and can say for definite that it,s neither fungus or a dust haze if one looks carefully with an led light at the rear element and look through the front without seeing the bulb of the led just the illumination inside .(ie holding the light to the side ) One will see the milky uniformed cloud which is uniformed not patchy as would a fungal infestation .Now the element that looks milky is actually two elements bonded as one (ie a douplet lens ) and over time the bonding starts to break down resulting in this uniformed haze .The problem seems to be temperature realted Ie sudden change from cold to heat as the lens gets older it unfortunatly becomes prone to debonding . Still works but obviously more prone to flare and soaks up the contrast. Hope this will help anyone interested .</p>
