Manfrotto RC4 Low Profile Rectangular Fast Join Adapter #3270/394

Not as Small as it Seems
So, after getting the RC2, I wanted something smaller (really more flat) that could mount easily on my Panosaurus panoramic head. I saw the RC4 and thought that would do the trick. From the pictures (I only looked at those on Amazon) it seemed to have similar dimensions as the RC2, but was low-profile with the locking mechanism in-line with the unit.But, this thing is huge compared to the RC2. Sure, its flat, low-profile, and a bit shorter than the RC2, but it is just about twice as wide and twice as long.Despite its size though, so far it seems to be working well. I’ve no problems with the mechanism. You push in the “button,” or “catch” and pull back the lever, while keeping a good grip on your precious hardware, to release the plate. I must admit, my hands are not small and pretty strong.Build quality is also excellent. It is a solid product and holds my Pentax K-x (with either 18-55mm or 50-300mm kit lenses attached) pretty well.So, right now, I’m using the RC2s to connect my Ball head and Pano head to the tripod and the RC4s to connect the camera to the heads. I may, when I save some cash, switch entirely to RC4.It’s a five-star product in my book even though it did not meet my expectations on size (that’s all my fault for not doing enough research).When I get an oppotunity I’ll take some pics of the two plates and post them.

Solid, secure and easy to use with different equipment
It’s hard to tell form the product view, but this clamp is essentially two pieces – one base station and one clamp. The clamp clamps into the base station. You can buy the base station separately. By having multiple base stations I can quickly move the camera to wherever I need it. For example, I ended up putting the master plate on the GH5, and then a few of the base plates on my tripod, my slider, my monopod, my cage and on a gorilla pod. This easy interchangeability and wide application makes it easy for me to get things done a bit faster as I am more often than not a one man crew.In terms of relaibility, I don’t ever feel the camera is in danger of coming loose. There is a reassuring clicking sound when the camera is in place properly and the clamp trigger snaps back, giving you a tactile and visual indicator that all is well. If you find that the clamp doesn’t work, it probably means you moved it into the locked position without putting your clamp in first.I like this clamp quite a bit and I feel that it’s well worth the money.

As advertised
Makes swapping gear easier, bubble levels are useful.

Fits flat on larger Plates and great adapter for the 323
I got the Manfrotto 393 to help solve a problem I had. Manfrotto makes the 323 Quick Release plate but they can not sit properly on Heavier flat Tripod/Mono Pod Plates. The 323 has secondary release to prevent accidental releases, which gives me a sense of security. To fix this problem Manfrotto 393 sits perfectly and flat onto large flat release plates. This larger cousin of the 323 does not have a secondary release but is super firm in place and the user really has to pull on the release arm. The 323 fits snug on the opposite side of the 393. Unlike the 323 the 393 has Manfrotto markings all over so you never have to doubt if this is a Manfrotto item. Large, well built item in combo makes for an great team.

精度が良いので使用していますが安心感があります。

Acquistata per usarla montata su una piastra micrometrica 454 sempre di Manfrotto. La parte inferiore della piastra è completamente piatta, e questo permette di posizionare la piastra sulla slitta come necessario- cosa non possibile ad esempio con l’adattatore 323 (RC2). Il bloccaggio della piastra è molto solido, lo svantaggio è che queste piastre sono ancora meno standard – ma almeno sono larghe ed offrono una solida base di appoggio. Comunque sono le stesse usate sulle teste a cremagliera Manfrotto 410 e 405.Le due livelle sono utili per una prima messa in bolla, ma non sono sufficienti per un setup preciso.Nota: questo adattatore è progettato per essere montato su una superficie piatta con vite standard da 1/4″ o 3/8″. Questo significa che non dovrebbero esserci problemi a montarlo su una piastra per fotocamere (a sgancio rapido o meno), o direttamente sulla crociera di un cavalletto a testa intercambiabile con vite standard.Per usarla invece per rimpiazzare la piastra montata su una testa, occorre accertarsi che sia possibile. L’accoppiamento fra testa e piastra non è standard, e ogni produttore è libero di adottare il design che preferisce. Perciò è possibile che ci siano fori e passi non standard, perni di allineamento/antirotazione sporgenti, ecc. ecc. Se l’accoppiamento non è adeguato, potreste rovinare la testa, la piastra, o peggio, potrebbe staccarsi con rovinose conseguenze.