FotodioxLens Mount Adapter Compatible with C-Mount CCTV / Cine Lens on Fuji X-Mount Cameras

Used today for the first time for macro photography. Works great. Easy to put on and take off.

I've actually owned two Pen F Fotodiox adapters, this one and one from literally 10 years ago for micro 4/3rds. Both have had the same issue which is that on the Pen F lens side the adapter sometimes doesn't really want to release. It's too grabby/tight to the lens and requires you align the lens correctly and pull it off vs it coming off when you release and turn. This sometimes has some metal/metal sound and is a bit disconcerting.However, it works well on the Fuji (camera) side and releases nicely.It is too tight with my 1st party Fujifilm back caps which also must be pulled off rather than nicely releasing when twisting.Another note which isn't super important but is kind of annoying: the lens doesn't actually mount perfectly upright and is slightly rotated on this mount. This makes it hard to index correctly to anamorphic adapters, etc. It isn't a concern with the Pen F bellows as they have the ability to rotate independently of the lens mount.

After a couple days of ownership, I put the adapter through its paces behind several lenses to determine the approximate exposure difference for each labeled setting. Hopefully, this will be useful for future potential customers.Aperture SettingsA quick note on my unscientific method: I tested four lenses including FX and DX, primes and zooms. Exposures were compared both with Lightroom and in-camera histograms and approximated as closely as possibly, to a third of a stop. Results may vary, as the adapter does exhibit some play at each setting and I doubt every copy will be exactly alike.Lens focal length: Setting 1 equivalent aperture, S2 Ap (difference in stops), S3 Ap (Δ in stops), S4 Ap (Δ in stops)16mm DX G: f2.8, f5 (-1 2/3), f14 (-3), max35mm DX G: f1.8, f3.5 (-2 2/3), f10 (-3), f25 (-2 2/3)50mm FX: f1.4, f3.5 (-2 2/3), f9 (-2 2/3), max70-300mm FX G @70mm: f4, f9 (-2 2/3), f25 (-3), max70-300mm FX G @300mm: f5.6, f11 (-2), f32 (-3), maxAs you can see, you can't simply assume that the four settings are equally distributed across the entire range of available apertures for each lens. In fact, I've found that, while in general, the exposure averaged typically to -2 2/3 stops per click, it was inconsistent at extreme focal lengths like ultra wide or long telephoto. While the physics of light and diameter are easy to calculate, this is not a precision instrument.I was pleased to find the widest setting does offer the widest possible aperture on all the lenses I tested from my f1.4 prime, to my telephoto. The narrowest setting often exceeded the maximum aperture available on my lenses and thus defaulted to that maximum figure.Build QualityI have several Fotodiox components including the static Nikon-Fuji adapter without the aperture ring. Their products feel solid and there's no play in the mount. I've never had trouble releasing a lens, as experienced with other brands. There doesn't seem to be any light leakage.My only qualm is the lack of certainty with each setting. The sound of each click is quite pleasant and communicates effectively. However, the tactile feedback lacks confidence, as there is a bit of spongy play at each notch, like a rubber band is all that keeps you in each groove. You can slightly rock the grip back and forth between settings and even ever-so-carefully force an intermediate setting, but it doesn't stay, and slowly slides towards one notch or the other which can wreak havoc on your exposure settings. It's probably best to stick to one of the four where the ring won't be tempted to move.SummaryAll in all, I'm pleased with the adapter. It allows me to use my "G" lenses without aperture rings. I wish there were more aperture settings than four and that they inspired a little more confidence. But it does cover my most used settings on most lenses: wide open, ~f4, ~f11. On a personal note, I'm also not a huge fan of the blue ring. I'd prefer black or silver to blend into the X-E1/Nikon combination.

A big part of why I got a Fujifilm camera for my digital photography was because I could use my mirrorless lenses on it but spent over a year unsure how to go about getting them to connect. When I found this it seemed too good to be true but rest assured after watching a video it all clicked (pun intended). I highly recommend this adaptor to bridge the gap

I got this set of extension tubes because of the low price. However, the old saying ("you get what you paid for") seemed to come true. The tubes arrived and I tried each on my camera, and then all together. The fit was very tight and I had trouble tightening the tubes to the point where they would lock. In fact, they were so tight, I felt like they might damage the base locking plate on the camera, or the locking plate at the back of the lens. Once on, I experienced the same trepidations when trying to remove the tubes.When examining the tubes out of the box, I noted that the 14mm tube had no markings on it to designate the size. Because of this I returned it through Amazon asking for a replacement set. When the replacement set arrived, I unboxed them and found the same problem. The 14mm tube had no markings on it to designate the size. Once again, I went through Amazon to request a replacement, but got the message that a replacement was not possible and that I could either have a refund, or contact the manufacturer and try to resolve the problem. I did not want to waste further time in dealing with this product which should have been properly labeled in the first place, and which I considered so tight on my camera that it might cause damage to either the camera or the lens mounting areas.So, I returned this cheap Fotodiox product and bought the JJC Auto Focus Macro Extension Tube Set which is more costly. I may not even use the auto focus feature of this extension tube set when doing macro photography, but this tube set fits properly onto my camera like one might expect of a well-made quality lens, the components are properly labeled, and I am (therefore) much happier with this purchase.

Das Objektiv steckt am Adapter fest und lässt sich nicht abnehmen.

The helicoid mechanism feels grindy, as if there's burs in the slide. The mechanism has a bit of play, wich makes the lens wobble slightly in it's extended position. There's lubricant leaking out all over the place, I get greasy hands from using it as intended, grease leaks+optics=not good. The throw of the ring is REALLY far, making it quite an effort to extend/retract.I had to de-bur the locking slot for it to even stay on the camera!At this price point (€95) I expected a little better...

Erfüllt alle meine Ansprüche um alte Objektive wieder zu verwenden. Preis Leistung perfekt. Kam über China und den USA zu mir. Das wußte ich vorher nicht. Liefrzeit 10 Tage.

passgenau, wertig einfach gut, da wackelt nix, habe ca 6 adapter von fotodiox alle sitzen perfekt und das wichtigsteder abstand zum sensor ist immer genau, infinity focus hat immer gestimmt, das hatte ich nicht bei den etwas preisgünstigeren kanidaten

Il prodotto è sostanzialmente benfatto, preciso nella meccanica e nell'assemblaggio. Le spiegazioni per l'utilizzo sono però poco chiare, se non si possiede una fotocamera fuji serie FX la baionetta del corpo macchina essendo micro non è raccordabile con anelli adattatori, perde il fuoco all'infinito e cambia il tiraggio. Bene invece la baionetta per le ottiche, accetta canon ed olympus OM.Amazon ottimo come sempre. Cordialità.