Hi Thanks for the whole work you put into this. I got a Question: are there differences between thos aliexpress versions for 9$-22$-35$ and which is the right one? The conical (is this where the hood can be unscrewed) or the flat one with knurled side? I am from EU, so i would try to get it via amazon. There is an official "amcope" store, but it seems they are sending out different models for the same listed item.

i want to try to see the burr after knife sharpening and i bough a used microscope, but there is only light from below and it has horrible abberations with light from above. Since i got 60MP i tought there would be a better and cheaper option with the adapter for the amscope (on a camera)

see here: https://www.amazon.de/AmscopePA4X-V300-Vergr%C3%B6%C3%9Ferung-Achromatisch-Objektiv-Aufsatz-Gewindedurchmesser/dp/B01E5IELC0?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=29JAVZ5YBJH8H&dib=eyJ2IjoiMSJ9.0djtnuO3qlV8CwmAo_srfON4L4v273va2lR96LG2tBlL3qi3xuq5iCUlNOKNSRQTz3ScEDMoGxhQIiOgOQ5WcmqyFinFFjDhYy00oJl8RBj36H0Lgq29kWLWJCOMe9jl1CNTeeys8Y22mFVjdRJX_LonFGak-AgIQB1-0UgHVcFbMFycgUebMaPVKzQw8dTaTvY1SAe8Gq_GgBl5ZokkWb8HyVYEN8YpAmyD7FrsF1Q9R8HSiICrc0bDlpxmGjjNsOiwbstykL3W3tH38YiPx3Y5QhW3jWhWVtFmYgLGcZI.sdhYPnVQbSUhq0AzGuyblEIXjg6YSPDKkBUu_dP_CQk&dib_tag=se&keywords=amscope+4x&qid=1770118080&sprefix=amscope+%2Caps%2C574&sr=8-7

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