Fotodiox announces Excell + 1 – A budget priced Speedbooster competitor

By technical editor Matt Allard:

Nikon G to M4/3 Excell +1

Nikon G to M4/3 Excell +1

Fotodiox have just released the Excell +1. A budget priced focal length reducing adapter that allows you to mount Nikon or Canon FD lenses onto a Micro 4/3 camera (no EOS model as yet). Similar to the popular Metabones Speedbooster it also uses corrective optical glass built into the adapter itself. This increases the field of view and as a byproduct also makes the resulting image about one stop faster.

The adaptor also features aperture control – you can control exposure even with Nikon G lenses which don’t have a manual iris. It will be interesting to see just how good these adaptors are optically given the low price. 

Using the Excell +1 with the BMPCC’s Super16 sized sensor and a 50mm lens will give you a full frame equivalent of 103mm, instead of the usual 144mm.  On a M 4/3 sensor the same 50mm lens using the Excell +1 would be 70mm instead of 98mm.

The Canon FD version of the Excell +1 (not all FD lenses are compatible)

The Canon FD version of the Excell +1 (not all FD lenses are compatible)

Below is a chart describing how the EXcell +1 works with crop factors on certain cameras.  While the company is only offering the M4/3 and BMPCC actors currently it looks like they will have a larger range available shortly given the the cameras listed on the chart. 


As a launch offer Fotodiox is retailing the Excell +1 for $139.99 US instead of the usual $159.99 retail. In addition, if you order before July 22nd Fotodiox will throw in the Light Cannon Creative Adapter which is similar to the Excell +1 but give a soft focus effect.

The Light Cannon

The Light Cannon

Edit – In light of numerous negative comments online about image quality of the Excell +1 from early adopters, Fotodiox published another video which goes to great lengths to point out that the Excell +1 is not a direct competitor to the Speedbooster and is not going to give comparably sharp results at wide apertures above f2.8. I would advise anyone serious about buying the Excell +1 to watch this before clicking the ‘buy’ button.

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Posted on July 9th, 2014 by Matthew Allard | Category: Blackmagic design, Lenses, Panasonic AF100, Panasonic GH2, Panasonic GH3, Panasonic GH4 |

3 responses to "Fotodiox announces Excell + 1 – A budget priced Speedbooster competitor"

  1. Says:
    July 10th, 2014 at 9:54 pm

    Hi guys,

    did you do the test on the GH4 already?
    What is your impression? Thanks for advise.

    Best regards,

  2. focuspulling Says:
    July 11th, 2014 at 4:04 am

    The history of this product launch couldn’t be more hilarious. You’ll notice that “for a limited time,” they’re throwing in something that they now call a “soft focus” adapter. In reality, that was their first stab at making this exact same product, but the consumer outcry was so severe (and compelling) that they quickly removed it from the market, realizing they couldn’t get away with it. Unwilling to just take the loss and move along, they re-named it a “soft focus” adapter — which really means that its lenses used for focal reduction are so awful, they cause edge blurriness and vignetting (which is not actually what a soft focus adapter does).

    So yeah: not sure you wanna trust this overseas operation and their eager domestic-ish spokesman Bohus, as seen here in this classic jaw-dropper:

  3. Rev Says:
    July 13th, 2014 at 8:08 am

    Fotodiox fails again. Every test hitting the web right now has proved that this adapter is an optical mess. Blurry, inconsistent images, unusable wide open, and is an utter waste of money and time.

    This is a “3 strikes your out” scenario for me with Fotodiox… Again, they tricked customers into thinking this “Excell+1” is a “new” product and that it’s been “beta tested”, which it is completely and utterly false. There is no way anyone who knows how to use a camera actually tested these out.

    Bohus puts his name and reputation out there as the face of Fotodiox, and if I was him, I’d be completely ashamed of myself and of Fotodiox right now. This is the exact same scenario for many a while back when the previous adapter turned out to be unusable as well… Instead of getting rid of bad product, they are trying to cleverly re-sell the adapter as a “stylistic lens: Light Canon”… Do they really think that the indie filmmaking and photography market is that stupid? I think not.

    Skip out on this Fotodiox debacle, save yourself a bunch of hassle, pony up the dough for the Metabones Speedbooster, and leave Fotodiox to their shame.

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