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Will buy from Amscope again.

I bought this objective for my Prior Scientific StereoMaster 3 microscope in hopes that it fits, since Amscope SE400 is just its clone. It fits perfectly and all I had to do is slightly readjust one of the lenses by tightening three retaining screws. Without that 2 miniute adjustment the two images didn't align. Now the image is crystsl clear. If you have a Prior StereoMaster 3 and can't find original objectives for it anywhere, this is the objective you want.

Good quick shippigg ny

Working with AmScope was good as always.

Awesome products fast shipping and very helpful customer service