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Received today my Andonstar A1 500x digital microscope and I'm currently testing it. There are quite a few reviews on YouTube about this microscope and most of them are positive. The reasonable sturdy metal stand is also well received. The only problem with the stand is the amount of play between the inner- & outer-tube (red arrow). On YouTube there is somebody with a solution; he machines with a lathe a whole new inner-tube with much smaller tolerances and solves the problem that way. However, on top of the outer-tube sits a screw-cap with an O-ring inside. I replaced the O-ring with a same OD but slightly thicker out of my Draper O-ring Assortment (bought once by Lidl for £5 or so) and pressed & screwed the well greased (silicon grease) cap back on. Not play whatsoever anymore ....... Another modification I like to do, as @nickelsilver suggested, is to make light on the base plate to illuminate the object from underneath (as well). For this I was thinking on a smd-led panel underneath a white transparent plastic sheet, perhaps feeding the smd's from the USB, or separately if a 12V 48smd panel is chosen. Perhaps I go even more fancy by cutting a big round hole in the base-plate and make the transparent plastic flush with the base-plate ....... Hmmm ..... that would be nice In my case, the microscope is connected to a Macbook Pro. With OSX a program called "Photo-booth" can be used, but that isn't ideal. I found an OSX program called "Digital Viewer", which has the basis functions and seems to perform better than "Photo-booth". Here the link to "Digital Viewer" (OSX & Windows): https://plugable.com/products/usb2-micro-200x/#drivers You can next to just looking at an object, take pictures and shoot a film; Anyway, here is my first little test-film. For file-size reasons I had to cut it down to 10sec and save it at medium quality. I've no idea what the magnification is, but you don't need a strong microscope; perhaps 200x is fine too ..... A bit more fiddling with the focus, with the light etc, and I think for the price, it's going to be just fine My Movie 1.mp4

I think I found the answer you're looking for the reason why there are two numbers 086ST0115 | VALVE PUSHER VALVE PUSHER REF :086ST0115 000 MATERIAL :STEEL 002 WATER-RESISTANCE :60 bar The article 086ST0115 is not available, it was replaced by 086STZ000610 VALVE HELIUM STEEL

The Omega reference number has changed but not the Bestfit number that corresponds to Omega case ref. 168.1650, and I think in this instance, it is OK. I don't agree with the whole "restricted parts" ideology, but Omega deals with a huge amount of non-authorized retailers, as well as parts funneling, so maybe this is part of their strategy. Or maybe they just revised the factory number on an unchanged part to justify marking the price up! I would suggest you contact the seller just to make sure a return (if necessary) is an option after purchase. J

Vintage Hamilton I recently got . I like the larger size of this watch . I don't know the model name yet , But I'll search . It came on a vintage expandable Spiedel watchband so I ordered this Green leather band . Very Handsome watch in person....

http://www.obsoletewatchandclockparts.com/ This guy is called John Senior and I get some parts off him, including mainsprings. He may not have that T end listed, but drop him an email. He's helped me out in the past. That's a lot of money for a spring from Oz, but the lack of them drives the price up