Oh good to know! Thanks Vitaliy! I will attempt a cleaning tonight. Either way the product is a hit as far as I'm concerned! I shot some video of myself performing an acoustic set at a bar in my town as well as shot some photos of the opening band and will post them tomorrow hopefully!

Just received my FD -M4/3 RJ Lens Turbo and I was pretty impressed! The build quality is nothing to rave about but for $139.00 USD it does what it is supposed to!

My copy has a substantial amount of dust between the lenses unfortunately and when I contacted RJ, they suggested I pay to ship it back or take it apart and clean myself ( not great customer service )

As far as performance goes, the Lens Turbo goes above and beyond what I expected. The sharpness doesn't seem to drop off as much as I was told around the edges and the centre is tack sharp.

I have used it with both my 50mm f1.4 and 24mm f2.8 and they perform equally well when compared with and without adapter.

It is so nice to have the option to get closer to the true focal length of the lenses, but I have realized since getting it that I kind of liked the fact that a 50mm is closer t a 100mm lens at 1.4 on my GH3 it gives such an intimate feel on my videos that it may take some getting used to what a 50mm lens SHOULD look like!

I will be posting some tests with and without the lens as soon as I get some spare time.

Overall, I recommend buying the adapter to see what it can do for you.

Hopefully you get a copy that has no internal dust!

@Adam_Mercier that's exactly what i mean, keep Canon EF, Nikon F and Canon FD glass, mount all of them on FD->m43 adapter since both FD and F have higher flange distance.

Nonetheless, i don't quite see many adapters to use Canon EF glass or Nikon F glass on FD.

Unfortunately, FD does not adapt to eos without an additional optical element to compensate the flange distance so you can't mount FD glass on the eos RJ but the other way around may be possible...

@CFreak Many people choose to have EF mount lens for their set, even if they only have manual lenses. EF seems pretty future proof to me. Great (if not best) selection of glass and compatible with most pro cams or mirorless options. With manual lenses a dumb EF mount is great :) A meaningless sample test with the RJ booster, filmed with a G6 :

@pchristoph "These guys beat Metabones to the punch for creating the dumb EF mount we all wanted " out of curiosity, how do you change the iris / control exposure while using it?

Didn't tested tbh. On my Tokina, I'm at infinity when I have the indication on 3m though. But could also be my lens, was repaired once.

@Adam_Mercier The 35mm T1.5 performs well with the Lens Turbo, yet wide-open it's not too well. However, at f/2 it's as fast as w/o Lens Turbo and actually performing better (except for the far edges) :)

I want to get either samyang 24t1.5 or 35t1.5 down the line! Not cheap but so fast! Really fast with the booster!

The Tak 50 1.4 with the booster becomes a aprox 70mm lens

@Adam_Mercier Was that tunnel shot done with the Samyang 14mm?

@RKM

I used...

-Tokina 11-16mm f/2.8, Nikon G with EF Adapter -Olympus OM 50mm f/1.8 with EF Adapter -Canon FD 55mm f/1.2 converted to EF mount -various M42 Lenses with EF Adapter

...all on the EF-MFT Lens Turbo. And had not a single problem (even with Infinity on the Tokina) so far.

@gameb I want to get some christmas lights this evening, having a copy of the 40-2 at home. Might be interesting how that one can perform on MFT :)