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Vars,
Don't know where you heard that story, but the blue front element of the PST has no energy rejection coatings.. it's just a AR coated doublet.
I've had a few PST's over the last couple of years and have experienced first hand the early problems with the "gold" objective as well as having great views and a lot of fun with the current PST's.
I'd be interested in hearing more....
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