Hi Helen, I purchased my BF10 ITF filter replacement from Beloptik a few weeks ago, it shipped to UK inside 5 days. It takes around 5 mins to install if you take your time not to scratch anything. You just unscrew one small lens ring holding the original rusted glass in place, the rusty glass drops ...

An update. Firstly I still need some answers on the Etalon tuning pin which should improve tuning but at least this scope is now moving in the right direction. I fitted the replacement ITF which arrived yesterday that I'd ordered from Beloptik. It took less than 5 days to ship from Germany to the UK...

I agree about it looking like a retainer to an extent - it certainly would make sense if it was one. I've studied those pictures at high magnification and they gave me more questions than answers. Do you know if they are images from an SM60 as it would be from the factory? When removed from the glas...

Hi Merlin66, But my problem is the pin isn't firmly held by the collimation glass so the pin gets pushed through the hole in the collimation lens instead when the tuner is operated i.e pressed against the etalon. All my scope has inside is what you see in the pic - nothing else holding the pin in th...

Hi, I'm troubleshooting my Solarmax 60II which I purchased secondhand almost couple of years ago only just got chance to use it, however after a gloriously sunny day and only getting red in the face I simply couldn't tune it at all - having never used one of these before I assumed this was operator ...