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Are there any Canon telephoto zoom lenses that have hard stop focus rings?

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ryan elder
Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Jan 28, 2019 at 8:59:23 pm

I bought the Canon 70-300mm zoom lens, and one big draw back for me, is that the focus ring is a fly-by-wire focus ring, where as I am use to the mechanical hard stop focus rings and prefer those.

I was thinking of selling them lens and getting a zoom lens that can zoom up to 300mm but with a hard stop ring, for hopefully around the same price.

I've been looking online but all the stories do not say if their telephoto zoom lenses are hard stops ones or not, in the specs, and they always leave that spec out. And the camera stores are not sure, as it is an unusual request for them.

Does anyone know if you can get any hard stop lenses that can zoom up to 300mm that can fit a Canon DSLR, that would be in a similar price range, around $600 hopefully?


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Jan 31, 2019 at 5:39:23 pm

Are you using this to shoot video? I bought a follow focus with hard stops. I set it up I can't go past infinity or beyond zero.

http://www.16x9inc.com/shop/movcam-mini-follow-focus-mf-1.html

Warren Eig
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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Jan 31, 2019 at 5:42:43 pm

Yep I want it to shoot video. I got a telephoto lens I wanted to shoot video with before, but I had trouble using a follow focus on it. Someone told me it's because it's a fly-by-wire focus ring, where as I need a hard stop focus ring, to pull focus, if that's the problem.


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 5, 2019 at 4:39:05 pm

Yes. That's why I bought a Follow Focus unit that has settable hard stops. You can set the stops anywhere you want. I always set to max and min focus-- Zero and infinity. The focus ring stops at those two points. It doesn't keep turning.

Warren Eig
O (424) 293-1164


email: info@babyboompictures.com
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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 5, 2019 at 5:47:11 pm

Okay thanks, but one of the problems I have with the fly-by-wire lens, is let's say on a follow focus I set point A and pont B, and I want to focus from one to the other.

On a fly-by-wire, once I set the points, all of a sudden Point B is not the same anymore, cause the fly-by-wire, does not work consistently cause of the electronics inside it. So even if the follow focus has hard stop, any points you make on it, will be consistent cause the fly-by-wire itself, is an electronically inconsistent ring system. How do you pull focus then?


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 5, 2019 at 6:04:24 pm

It is dead on accurate every single time. If you were in Los Angeles I could demo it for you.

Warren Eig
O (424) 293-1164


email: info@babyboompictures.com
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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 5, 2019 at 10:46:36 pm

Okay thanks. But I was told before that the problem I was having with accuracy, is the fly-by-wire lenses, and that fly by wire lenses will not work with follow focuses. So is that not true, and they do work with them?


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 5, 2019 at 11:04:55 pm

I use mine all the time.

Warren Eig
O (424) 293-1164


email: info@babyboompictures.com
website: http://www.BabyBoomPictures.com
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For Camera Accessories - Monitors and Batteries
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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 5, 2019 at 11:36:01 pm

Okay thanks. Maybe I'm doing it wrong then. When I make a mark on a follow focus with a grease pencil, and then want to hit that mark, the mark on the lens is not the same each time, because the electronic components in the fly-by-wire lenses, are changing the mark each time.

How does one pull focus on a follow focus if the electronic components in the lens, is changing the focus marks each time?


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 5, 2019 at 11:45:31 pm

They don’t change. You are doing something wrong. I do this all the time with hard stops. It never changes.

Warren Eig
O (424) 293-1164


email: info@babyboompictures.com
website: http://www.BabyBoomPictures.com
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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 6, 2019 at 12:13:41 am

Okay thanks, I was told it was because if using fly-by-wire lenses, instead of lenses with mechanical rings. But if I am doing something wrong, what could it most likely be?


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 6, 2019 at 5:37:39 pm

The problem is you have no hard stops (Physical stops so the lens can't turn). If you accidentally bump the focus ring or turn it, you are off.

Warren Eig
O (424) 293-1164


email: info@babyboompictures.com
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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 6, 2019 at 5:41:53 pm

Okay thanks, but a follow focus only has two hard stops right? One at end of the follow focus, and one at the other, right? What if in order to focus on an actor, you had focus to a point on the follow focus where there is no hard stop? What difference does having hard stops make, if actors are at points on the follow focus where there are not hard stops, at, what then?


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 6, 2019 at 5:50:18 pm

Because you never used a follow focus. You use the hard stops to set the limit of the entire focus range: Closest and furthest the lens will focus so it won't keep turning. (Canon EF lenses can turn forever)

Then the there is a white ring you can mark with a dry erase marker to mark your focus points. It is how we do it in Hollywood on big million dollar productions. They don't use the hard stops to mark the actors.

On a real cine lens, the lens can't turn past either extreme (close, far) Canon EF lenses have an infinite turning focus ring so you need to put a hard stop at both extreme points so it won't turn beyond either point.

Warren Eig
O (424) 293-1164


email: info@babyboompictures.com
website: http://www.BabyBoomPictures.com
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For Camera Accessories - Monitors and Batteries
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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 6, 2019 at 6:05:03 pm

Okay thanks, I've done that before, marking where the actors are to focus. But the problem is, is that the fly-by-wire lens is causing problems, when hitting the mark. When I hit the mark, the lens will choose to go from macro to infinity when I don't want it to.

I was watching this video on it, and he says that is what is happening with a fly-by-wire lens:







In the video he says that when you try to pull the focus, it goes from macro to infinity when you do not want it to cause it's a fly-by-wire focus ring on the lens. And since that is a problem with fly-by-wire rings, no follow focus with hard stops will correct that because the lens will still go from macro to infinity when you do not want it to, regardless, of whether or not the follow focus has hard stops or not it seems. So what I mean is, what do you about the lens going from macro to infinity, even with a follow focus?


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Warren Eig
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 6, 2019 at 6:09:22 pm

This is absolutely not true on Canon 5d MKIII there is no auto focus in video mode so the focus does not change until you change it. What camera are you using? does it have auto focus in video mode and do you have it turned on?

I've been doing this for years with my Canon EF lenses and it does not go to infinity automatically.

I'm signing off now. I've explained it to you. Try it or don't but it works.

Warren Eig
O (424) 293-1164


email: info@babyboompictures.com
website: http://www.BabyBoomPictures.com
Vimeo: https://vimeo.com/babyboompictures



For Camera Accessories - Monitors and Batteries
website: http://www.EigRig.com



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ryan elder
Re: Are there any Canon telephoto zoom lenses that have hard stop focus rings?
on Feb 6, 2019 at 6:28:22 pm

I was testing it out on the Canon T2i, but will use a better Canon camera for actually shooting the actual project I want. Basically the focus points I make on the follow focus are not the same. Point A, is no longer A, but a little past point A when I rack focus for example. I was told it was because it's a fly-by-wire lens, and fly-by-wires do not hold the exact same marks when you want to rack focus, if that's the problem, which it seems to be.


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