Vade Mecum claims that Brasso metal cleaner spread on the lens will sometimes remove haze.
Polishes will remove the front coating.
If not etched (what follows is not a product plug), then First Contact™ (polymer) Cleaning Solution by PhotonicsCleaning works well. It's a brush-on viscous polymer that removes surface contaminants after drying then peeled off. No contaminant rubbing involved. Keep away from edges because the liquid polymer will be drawn-in. Good luck.
Thanks all for all the advice. I took the front element off and verified that yes indeed the haze is on the inside, so I am waiting to hear back from John Van Stelton about having Focal Point Lens Repair take it apart and clean it and polish it a bit. I had them de cement and then re coat and then re cement the front element of an 80mm planar off a 2.8F Rolleiflex and they did a good job. I think this repair should be much less complicated. It is quite a valuable lens in good condition so it is probably a good investment.
Dennis
the only *really* valuable version of the 135 planar is the latest T* version in all black. The earlier versions, though desirable and certainly valuable, are not nearly as expensive. Just an FYI before you invest more than a few hundred in it (as it may not make that much difference in final price/value).
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