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Esteemed Contributor
Posts: 3,805
Registered: ‎06-11-2013

Re: Accidental Lens Release

There are good & bad habits (or omissions of good habits) that can cause this sort of problem.

 

I have noticed my lens had become unlocked more than once (though I always caught it and no lens ever came off completely thanks to the large amount of rotation needed after releasing the lock) and I was baffled as to how it happened because I have good camera handling technique when I'm shooting.  But the emphasis is on "when I'm shooting".  

 

It turned out the fault was indeed mine.  When I retrieve my camera from the bag, I had a habit of grabbing the lens barrel by my left hand - and I'd grip it as close to the camera body as possible.  This put my thumb right up against that button -- and then I'd pull the camera out.  Just occasionally I was pressing the button and the "lifting" action was giving the lens just enough rotation that when my thumb was no longer pressed up against the button the lens wouldn't relock.

 

The solution is that I'm now mindful of how I grip the camera when I pull it out of the bag.

 

I also use a Black Rapid strap.  The camera attaches via the tripod bolt on the bottom of the body.  Black Rapid puts a big black rubbery washer down there so that it hopefully wont twist.  But some users claim the bolt came come loose.  Upon learning this, I REGULARLY check that my bolt is snug (many times per day).  I have never once found mine coming loose, but I still check it.   It's a good habit that takes just a fraction of a second and saves thousands of dollars in expense.

 

Developing good habits doesn't really take much effort and it provides good benefits.

 

Besides photography, my other passion is astronomy.  I love science.  I love physics.  I love the scientific method.  I tend to think along those lines.  

 

So when someone says "this problem is caused by that defect", I tend to look at the data.  I just can't get around the problem that "that defect" was causing "this problem" then every camera that has "that defect" should have "this problem" -- or at least quite a substantial majority of them.  But that's not really the case.  Hardly anybody has this problem.  So if I employ critical thinking ... it is not rational to believe that the design is actually "the" problem (it could still contribute to it).  There must be something else going on.

 

On the flip side, we can look at the human element, human habits and how masses of humans tend to think.

 

I have a friend who used to sell phones (for a major telco carrier).  I would occasionally hear stories about the latest customer experience.  One day he was telling me about a customer who walked in with their flip-phone (many years ago) which was clearly in two entirely separate halves (they're not supposed to come apart).  Inspection of the device CLEARLY showed it was physically stressed well beyond the breaking point (the phone was ripped apart) - whether deliberate or accidental.  The customer's story "it just broke".   His question "did you accidentally sit on it while it was open?"  Customer:  "no, it just broke".  "Did it accidentally fall a great distance or get stepped on?"  Customer:  "No, I just opened it to use it and it fell apart."

 

This customer was clearly "lying through all six rows of their teeth".  This story isn't all that unusual for these service reps.  They get the customer-is-in-denial or the customer-is-blatently-lying experience all the time.  They also get honest customers too... so it's not all bad.  

 

But my point is, if that design defect was 100% responsible for the problem and nothing else contributes to the problem, then lenses should be falling off all the time.  But the issue does seem to be quite rare.  This points to other contributing factors.  

 

I do find it "interesting" (from a human sociology perspective) that threads like this one point to a product defect almost exclusively without owning up to any other contributing factor -- such as operator error.

 

Do you REALLY believe there's ZERO operator error involved here?  I mean... c'mon... not even a little tiny bit?

 

 

Tim Campbell
5D III, 5D IV, 60Da
Frequent Contributor
Posts: 39
Registered: ‎02-13-2013

Re: Accidental Lens Release


TCampbell wrote:

 

But my point is, if that design defect was 100% responsible for the problem and nothing else contributes to the problem, then lenses should be falling off all the time.  But the issue does seem to be quite rare.  This points to other contributing factors.  

 

Absolutely. In my case it has only occurred when using my black rapid strap. This has all already been discussed.

 

I do find it "interesting" (from a human sociology perspective) that threads like this one point to a product defect almost exclusively without owning up to any other contributing factor -- such as operator error.

 

I've never claimed that there was no other contributing factor other than the design of the lens release button. Simply that the lens release button design, I believe, is a contributing factor and that I'd like this to be considered in future designs.

 

Do you REALLY believe there's ZERO operator error involved here?  I mean... c'mon... not even a little tiny bit?

 

Nope. You are misrepresenting what I have been trying to say. I may not have been as clear as I should have, but I hope it's clear now.


 

Honored Contributor
Posts: 7,972
Registered: ‎08-13-2015

Re: Accidental Lens Release

I'm not sure which Black Rapid strap you have been using, but I think the RS Sport Extreme, or whatever it is called, has an optional gizmo that allows you to connect both the camera body and the lens to the strap, as a protection against accidental releases.

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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Frequent Contributor
Posts: 39
Registered: ‎02-13-2013

Re: Accidental Lens Release

[ Edited ]

Cheers mate. I'll look into it. I also like your idea of the holster too - so these should put my mind at ease a bit.

 

PS. I'm using the RS Sport (but not the Extreme).

Esteemed Contributor
Posts: 3,805
Registered: ‎06-11-2013

Re: Accidental Lens Release

Instead of using the Black Rapid bolt, I use an Arca-Swiss plate (actually I use the Arca-Swiss style plate made by Really Right Stuff which is countoured to match the bottom of my battery grip models).  Using that setup, there's pretty much no chance that the plate can twist and come loose.  

 

Meanwhile, on the Black Rapid strap, I use an AcraTech "Swift Clamp".  This provides the Arca-Swiss style clamp (with a locking lever) to clamp onto my mounting plate, but it provides the ring to snap onto the strap.  

 

Not only is it far more secure... it offers the main benefit of being able to un-clamp the camera from the strap and clamp it onto my tripod.  That was actually the main reason I bought it.  A "quick release plate" isn't very "quick" if you have to use a tool to remove it and replace it with the camera strap bolt... then remove the bolt and re-attach the QR plate to use a tripod.  

 

I think the AcraTech Swift-Clamp set me back $150, but it's very high quality and, in my opinion, well worth it for how much easier it is to move the camera around.

 

Tim Campbell
5D III, 5D IV, 60Da
Valued Contributor
Posts: 343
Registered: ‎01-31-2017

Re: Accidental Lens Release


@schmegg wrote:

@TCampbell wrote:

 

Do you REALLY believe there's ZERO operator error involved here?  I mean... c'mon... not even a little tiny bit?

 

Nope. You are misrepresenting what I have been trying to say. I may not have been as clear as I should have, but I hope it's clear now.

 


I haven't read through every single post on this topic, but even my T6 takes some effort to detach the lens, which is good. I am convinced that most of these "Canon must re-engineer the lens release!" posts are coming from users who either all thumbs when it comes to proper camera-handling technique or are easily distracted and not paying attention to what they're doing. So the best thing you can do is to take the camera to a good repair shop or send it in to Canon, in the off-chance that the spring needs replacement. In the meantime it wouldn't hurt to review some videos on proper camera handling technique. 

Occasional Contributor
Posts: 22
Registered: ‎12-15-2015

Re: Accidental Lens Release

After spending thousands on a camera I dont know too many people who will man handle their equipment. And if they do they will not only drop lenses they will drop and dammage all there camera equipment

 

The penalty for not having good camera holding technique has and always will be not perfect pictures, the penalty should never and has never been (until now) a lens may fall off

 

Cannon has made bigger, less protected and softer push lens release buttons in recent times and in and in the same recent times people who have never accidentally released a lens in their life before have now accidentally released a lens

 

 

Honored Contributor
Posts: 7,972
Registered: ‎08-13-2015

Re: Accidental Lens Release


@Ron2 wrote:

After spending thousands on a camera I dont know too many people who will man handle their equipment. And if they do they will not only drop lenses they will drop and dammage all there camera equipment

 

The penalty for not having good camera holding technique has and always will be not perfect pictures, the penalty should never and has never been (until now) a lens may fall off

 

Cannon has made bigger, less protected and softer push lens release buttons in recent times and in and in the same recent times people who have never accidentally released a lens in their life before have now accidentally released a lens

 

 


Since you seem to be fully aware of the "problem", then accidental lens release shouldn't be a problem for you.

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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Occasional Contributor
Posts: 22
Registered: ‎12-15-2015

Re: Accidental Lens Release

This is not about me or you, its bigger than that
Occasional Contributor
Posts: 22
Registered: ‎12-15-2015

Re: Accidental Lens Release

There is a design flaw which Canon need to address
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