Mirrorless with adapter vs mirrored camera mounts and 24-70 & 150-600 EF lenses

I know there is an adapter but... Will the mirrorless camera body lens mount be okay ( not bend or deform) with somewhat heavy lenses ? This is compared compared to larger maybe tougher traditional mirrored camera bodies?

The mounts are built just as strong as ever. Even the mounts for the little SL1/2/3 series can handle lenses like that. If you aren't supporting the heavier lenses with your left hand, you aren't holding your gear properly anyways.

I personally have never bent a Canon lens mount. I'm also new to owning and carrying somewhat heavier lenses. I really enjoy my Tamron 24-70 and Tamron 150-600 lenses even if they are a tiny bit heavier than my older 1990's eos lenses. A camera rental website said they occasionally sell a camera body after a customer rents a large telephoto lens. Is using camera lens combo upside using a tripod collar ring and screwed in peak design camera strap mount attached to the tripod collar okay? I still support the lens body using my palm of hand as extra safety precaution and to take weight off the lens collar and my neck. lol. I think I will someday get a big think tank zoom bag.

vision35 wrote in post #19123751
I know there is an adapter but... Will the mirrorless camera body lens mount be okay ( not bend or deform) with somewhat heavy lenses ? This is compared compared to larger maybe tougher traditional mirrored camera bodies?

Why would there be a difference? The mount itself (that steel ring) hasn't changed in diameter or thickness. It's still screwed into a magnesium frame. Are the screw lengths different? Or is the number of screws different?

Where do you get the idea that the DSLR magnesium is any more resistant to the screws being stripped out than the mirrorless magnesium?

vision35 wrote in post #19124083
I personally have never bent a Canon lens mount. I'm also new to owning and carrying somewhat heavier lenses. I really enjoy my Tamron 24-70 and Tamron 150-600 lenses even if they are a tiny bit heavier than my older 1990's eos lenses. A camera rental website said they occasionally sell a camera body after a customer rents a large telephoto lens. Is using camera lens combo upside using a tripod collar ring and screwed in peak design camera strap mount attached to the tripod collar okay? I still support the lens body using my palm of hand as extra safety precaution and to take weight off the lens collar and my neck. lol. I think I will someday get a big think tank zoom bag.

To give you some peace, I have hung the same lenses on my Rebel SL2 that I had on my bigger bodies, which means the 150-600, etc have all been on my baby rebel body with no issues.

If that body can take it, then anything larger will be just fine. If you think about it, the weak point may actually be on the lens mount itself with just 3 screws that keeps that mount ring attached to the lens.

TeamSpeed wrote in post #19124961
To give you some peace, I have hung the same lenses on my Rebel SL2 that I had on my bigger bodies, which means the 150-600, etc have all been on my baby rebel body with no issues.

If that body can take it, then anything larger will be just fine. If you think about it, the weak point may actually be on the lens mount itself with just 3 screws that keeps that mount ring attached to the lens.

I've seen lens bodies ripped from their mounts.

I've used the 100-400V2 & Sigma 150-600C on my M50 with the Canon adapter, and had no problems. When walking around, I am carrying the Sigma by the tripod foot. When shooting hand held, I am supporting it with my left hand.

ct1co2 wrote in post #19124987
I've used the 100-400V2 & Sigma 150-600C on my M50 with the Canon adapter, and had no problems. When walking around, I am carrying the Sigma by the tripod foot. When shooting hand held, I am supporting it with my left hand.

I do as well, and forgot to mention that. That little M50 is like a tick on a dog with those lenses, it is so tiny and just along for the ride. I rarely hold the entire system by the camera though, so perhaps this is't that relevant to the question, but am not sure.