EF-R2 Auto Focus Lens Adapter Mount with Customized Control Ring for Canon EF/EF-S Lens to Canon EOS R R5 R6 RP Camera

Perfect adaptor and silent as appose to the official Canon unit. Easily upgradable as well. The current firmware s 1.4 that works perfectly with a Canon R5 at 1.3

Bought as an alternative the the Canon adaptor not for cost reasons though that's another point in the favour of this adaptor but simply because unlike the genuine canon one it was available to order. Quick check of the firmware on receipt - all up to date and tried with number of different lenses from Canon and Sigma, all worked as expected.Small amount of vignetting at some extremes of the range on some lenses but easy to compensate for during framing. Sigma macro lens and mage stacking presented no issues at all.

Bought this adapter in order to use my EF lenses with my new Lumix camera. It was definitely a very good and cost-effective way of extending my arsenal to work on the new camera without having to buy all new lenses straight away.The build quality is really good - the adapter is solid, well made and seems like it's going to last a long time. The tolerances are _almost_ perfect. Both the lens and the adapter move a very, very tiny amount when in place, but this does not affect the usability of the lens.Very occasionally something happens and the lens stops being recognised. I am not sure if it's the combination of the camera & lens with the adapter, or whether this is the contacts on the adapter - but it's very easily sorted by unlocking and locking either the lens or the adapter. It's only happened a few times so far.All in all, this was a good choice and I would very much recommend it, in spite of those very minor points. You could spend much more money on an adapter that performs similar function and doesn't provide any more features or improvements. Both thumbs up.

The image was taken with a bog-standard EFS 17-85mm with the adapter on the EOS R exif included. AP @50mm 5.6 1/640 @1000 cloudy afternoon, basic point and shoot.

This adapter is okay-ish; does the job most of the times; but the connection between adapter and my camera doesn't feel secure enough. Even though it's cheaper I wouldn't risk my expensive camera and lenses by using this.. I would rather wait for official Canon ones.

good price

This adapter appears well made but once fitted, the connections between body, adapter, and lens are very loose. This didn't cause any issue with some of my smaller EF lenses but when fitted with 70-200 f2.8 or 100-400 mm lenses, an error message was frequently returned requiring the camera to be power cycled before it would work again.Canon need to get their act together and meet the demand for these adapters. I'd very happily pat the extra for a canon one if it was currently avilable.

As a straight EF-RF converter it worked great, solid build, only lacking weather sealing. Where this product failed was trying to update the firmware, I tried 3 different computers and about 6 different leads and no combination worked, so I couldn’t update the firmware to work with my R6. doing a lot of searching online it appears to be a known problem. Give it a few months and I’m sure they’ll be shipped with the latest firmware and it won’t be as much of an issue......unless there’s another update. Ended up going with the basic canon adaptor.

O material é bom mas o anel de ajuste bem sempre funciona. Precisei de tirar a bateria para o anel voltar a funcionar sempre que desligava a máquina (compatível com o adaptador - Canon RP)

I attached my EF sigma lenses to my Panasonic Lumix S5 using this adapter. I didn’t have to update the firmware as it already contained the info from my old lenses. It feels very tight and weather sealed.

Sehr stabiler Eindruck, Passform an sich in Ordnung; etwas lautes Klicken des Rings. Das eigentliche Problem ist aber, dass der Control Ring (Ergänzung 31.1.24: an meiner Eos R10) ohne Funktion bleibt. Keine Zuweisung von Funktion möglich, keine Reaktion auf Drehung (an der Kameraeinstellung liegt es nicht, da es mit dem Orignialadapter ohne Probleme funktioniert).Hätte gerne den Adapter behalten - insbesonder, da einige User offenbar keine Probleme feststellen und ein Firmware-Update versucht, aber nichts dazu gefunden. (Ergänzung 31.1.24: Da die R10 sehr neu ist, nehme ich an, es ließe sich mit einem Firmware-Update beheben, kann das aber nicht beurteilen.)Der Verkäufer hat die Retoure vorbildlich abgewickelt.

Si vous utilisez cet adaptateur sur un R7 qui possède un capteur APS-C, par exemple, aucun souci. Vous l'installez. Point final. Vous aurez quasiment la même focale qu'un capteur Plein Format avec en bonus, un Stop de plus. Votre objectif f2 deviendra un f1.4 et votre f1.8 un f1.2.Par contre, sur les Canon R, RP, R6, R6Mk2 et R5, par exemple, il faut que vous passiez en mode 4k Crop dans le menu. Sinon vous aurez le vignettage noir. Le même que vous obtenez si vous mettez un objectif EF-S (au lieu d'un EF) sur un capteur Full Frame.Donc l'utilisateur italien qui n'a pas compris ça avec son R6 s'est retrouvé avec ce fameux vignettage et il a pris des photos pour démontrer son "souci"...

Prodotto ben construito, buona qualità dei materiali.PRO: Buono l'attacco da tutte due le parti, affidabile. L'autofocus funziona abbastanza bene (ma non come le lenti proprietarie Lumix o Sigma L mount), in maniera soddisfacente per la parte fotografica. Ovviamente, non si può fotografare eventi sportivi, ma fotografia di paesaggio o messa in posa va benissimo. Funziona anche l'autofocus continuo in video, ma solo con le lenti Canon originali.CONTRO: Peccato che non sopporta così bene in autofocus le lenti Sigma con attacco EF o EF-S. Un po' meglio rispondono invece le lenti Tamron, per la mia pratica almeno.