Canon Aluminum vs. Titanium Mount

[Brian Merlen]

Anyone ever figure out the max weight allowed on the AL mount??? I am trying to figure out if I need rails or not for my still glass...

[Mark Toia]

Ive used both... The alloy version i wouldn't be putting a 300mm 2.8 on it (like you can with a titanium) without support or constantly holding of the lens.

Other than that. It's exactly the same as the Titanium.

[KETCH ROSSi]

As Mark said, PLUS, even so I have used the Ti version, of it, and now sold it, I have just purchased the Al one as I will use small Primes and Zooms with it in my travels, but the reason to choose one to the other is not only the Strength of the mount and capacity to support Heavier lenses, but also the fact that Ti is just so much stronger of a metal and it will not change in its structure under BIG temperature changes as AL does, even so mind you we are talking Microns we are not talking that your lens now does no longer fit, but just the same at times it could be a difference that could effect focus, so if you go form Africa to Alaska often then choose the Ti even if you only use lighter lenses as I am doing now.

[Erich Ocean]

I've got a like-new Ti Canon mount for sale if anyone's interested (I no longer need it.)

[ericyoung]

I have a Scarlet with both an Aluminum Canon mount and the Ti PL mount.
I've noticed that there is quite a bit of flex in the AL mount when focusing on more substantial manual lenses. In my case it's a set of modified Contax Zeiss, however I would assume its the same with current Zeiss, older Leica's etc. For tight shots, the flex is enough to cause movement in the beginning of the focus, even when moving the focus ring by hand.

My question is how much stiffer and more substantial is the Ti Mount? Anyone compared both. My Ti Pl is a beast, but a different beast all together given the size and scale of the mounts on the lenses themselves.

Are you sure it's not image shift within the lens, rather than lens mount flex?

[Brian Merlen]

Is there an official weight you can't go past without supports (for both the TI and the AL)? I am just wondering because I am in the process of assembling a package I hope to cosign to a rental house and also use for my own projects and clients when its available. I just want to make sure I have all bases covered, Thanks much appreciated

[Johnny Friday]

MOUNT or LENS ? OR Image Shift or Lens Mount?

I believe many of the still lenses exhibit many of these characteristics...We are shooting 3d on the Atom rig with OptiTek Nikon mounts. Just the other day we noticed a similar situation...when adjusting focus you see the image SHIFT. in this case i blame it on the elements inside the lens housing moving around.

...How i determined it is not the mount is by taking my fingers and putting side to side pressure on the end of the lens and seeing if there is any movement and how much. Then adjusting iris and focus wheels and then evaluating WHERE the movement is coming from. In this case for us....it was the Nikon Still lens and the focus wheel that caused all of our movement. Therefore brining me to the conclusion that the glass elements must be moving slightly....End result---not so great for 3d work...and therefore a BIG need to find matched quality constructed lenses where the elements don't shift.
...basically control the things we can and the rest is just up to the universe.

[Maik Müller Menendez]

Hehe, i never doubted the AL-mount will hold a 70-200, because i've seen cheap cams like Rebels holding this lens without a problem. You know, that whole body is cheaper than our AL-mount. ;)

It was one of the first lenses i've tried on my Scarlet after unboxing, and i never had any problems.

[Mark Toia]

Hehe, i never doubted the AL-mount will hold a 70-200, because i've seen cheap cams like Rebels holding this lens without a problem. You know, that whole body is cheaper than our AL-mount. ;)

It was one of the first lenses i've tried on my Scarlet after unboxing, and i never had any problems.

Greatest lens ever made by canon !