Designed in two models — a Nikon F version and a Canon FD glass version — the Excell +1 lets you slap your ‘old’ glass on your MFT body and gives you an extra stop of light for about a third of the price of the competition.
Priced at only $160, the Excell +1 sets you back a whole lot less than the popular Metabones alternatives, which range from $400–600. And what’s more, for the next 4 days, you’ll be able to pick up the Excell +1 for only $140 if you buy it from Fotodiox themselves.
At less than half the price of the other options out there, the one obvious question on everyone’s mind has to do with the quality. If the world of speedboosters follows the age-old wisdom that “you get what you pay for,” the extra cash might be worth it.
Then again, look at the heated competition between Sigma’s 50mm f/1.4 ART lens and ZEISS 55mm f/1.4 OTUS… great things can definitely come in more affordable packages.
As for how various lenses will stack up and convert with the Excell +1, Fotodiox has provided the chart below for you to use as a little cheat-sheet.
(via SLR Lounge)