This seems to be the actual manufacturer's sales page. Imagine, ten of these cost barely more than a single Metabones. And reviews like the video above suggest the Vitrox has better functionality. Metabones is in for a well deserved reckoning. From what I've seen their image quality doesn't compare with an original speedbooster let alone an Ultra... There's a reason Metabones has the market share it does, and it's not just a single feature - it's the combination of all of them in a single package. I'm curious about your testing methodology as the MTF curves make absolutely no sense at all, the mtf30 appears higher than the mtf10 for all adapters at the center and middle of field for some. Given that a 1. I use QuickMTF to analyze my ISO12233 images so perhaps I'm not using the software correctly. Regardless I'm not making any empirical conclusions, only comparative ones and given that the curves for the Metabones and Viltrox are quite similar I think it's safe to say the Viltrox is a quality product. And not the junk people automatically assumed it was for the price point. You're assuming the Viltrox to have sub-par quality to the Metabones before any comprehensive reviews have released from respected sources. Early adopters often pay many multiples of what later buyers pay. The later buyers regularly rewarded with not only a vastly cheaper product, but a more refined, objectively better product. I've found some oddities Sigma 50-100 mainly, lots of astigmatism and a possibility of ringy bokeh in some conditions when it comes to using a teleconverter to cancel out a telecompressor and have been waiting for a decently priced plain tube instead of caving in to GAS and getting a protrusive teleconverter. Not a flawless experience, though. The YN has terrible AF to begin with, though! On my GX85 it somewhat worked overriding the set aperture in aperture priority mode , on the E-M10 it seemed completely useless. Maybe I got some settings wrong. Not sure what is is used for. Unfortunately, AF was completely broken. The lens being focus-by-wire, MF was also not working. I will create a separate thread for this adapter + lens combo later! This would be an affordable offer for UWA zooms on MFT which is currently severly lacking! Optically, the adapter seems at least decent. Of course, I'll have to do many more tests to make any conclusion, but here are some SOOC pics with auto settings. Center looks good, but blur and coma in the corners. Keep in mind that the Yongnuo is not known as a great performer wide open, so any defects might as well be attributed to the lens, and not the adapter. Unfortunately, AF was completely broken. The lens being focus-by-wire, MF was also not working. I will create a separate thread for this adapter + lens combo later! This would be an affordable offer for UWA zooms on MFT which is currently severly lacking! Serendipidous post - I read through this thread earlier today wondering whether anyone had tried the 10-18, given that some seem to have had success with it on the metabones. It's too bad it doesn't work - it would make for a fairly attractive excuse to get the adapter. Hopefully there is an update at some point that adds support. Serendipidous post - I read through this thread earlier today wondering whether anyone had tried the 10-18, given that some seem to have had success with it on the metabones. It's too bad it doesn't work - it would make for a fairly attractive excuse to get the adapter. Hopefully there is an update at some point that adds support. Someone has to be the first to try! The 10-18mm was the only reason I got the EF-M2 in the first place, so I'll definitely try to get them to update the firmware! BTW, I'm not conclusive yet, but it seems that the glass back of the 10-18mm lens hits the glass of the adapter when zooming to the wide end... Any ideas how to add a manual stop to the lens?
