Hi Guys
My reply is a little off topic ( this product touches the lens / elements )
I bought a cleaning kit last year from Photonic Cleaning Technologies in the States, they dropped the price by about ( from memory ) 40% in response to the fires last year.
I does take a stiff upper lip to paint on a solution ( onto to a C11 Edge ) but one application removed every thing from the glass that shouldn't be there. no runny liquids on the telescope no drama it just worked.
It obviously isn't a no contact option but I'm a very happy user.
Ed - another on. 8-)
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