QD connector failure

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MatthewK said:
Here's the link to the foot: https://www.hejnarphotostore.com/product-p/nfr-008..htm

I'm going to inquire to see if he can't make a slot at the rear of the foot, as shown here in my high tech sketch:
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Last year I went looking for a plate with dual QD for that lens for a trip.

No one had any models with dual QD. I asked him if he could make one. I already 2 others from him, and gave him a drawing with some measurements. I’m not a machinist!

That’s the exact model I have! Seems he’s carrying them regularly now which is good.

Let me know please how you make out. Was going to email him, but now that I know you’re doing it I don’t want to duplicate efforts.

I like that he went with a screw in design vs quick release/slide out. He checks out the forums at times to see what people are griping about- smart!
 
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Chris probably could, but that foot already has a QD socket at the rear, so there's not much meat left to add a slot and retain strength near that QD socket. Maybe he could make you a custom foot with the rear slot while omitting the QD socket ? IDK
 
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Mr. Hejnar (Chris) replied to my query about adding a loop area to the rear of the foot, and it’s like Michael said: there’s not enough real estate left to fit it, he’d need to remove the QD socket in order to do it. I also inquired as to the material of his QD sockets, which he reports are aluminum and are cut from the block (so no inserts). Steel inserts are used on some products, but most do not have the space for them.

Chris also mentioned wear of QD, and states that he’s yet to receive any reports of it failing (on his products at least, I’m assuming). His overall message was that if you regularly check for functionality and condition of the QD socket/insert, you shouldn’t have anything to worry about.
 
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MatthewK said:
Mr. Hejnar (Chris) replied to my query about adding a loop area to the rear of the foot, and it’s like Michael said: there’s not enough real estate left to fit it, he’d need to remove the QD socket in order to do it. I also inquired as to the material of his QD sockets, which he reports are aluminum and are cut from the block (so no inserts). Steel inserts are used on some products, but most do not have the space for them.

Chris also mentioned wear of QD, and states that he’s yet to receive any reports of it failing (on his products at least, I’m assuming). His overall message was that if you regularly check for functionality and condition of the QD socket/insert, you shouldn’t have anything to worry about.
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Who's Michael? :)
 
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Blufftonian said:
I believe maxxus46 means a “nyloc”, which is a nut that has a nylon insert that locks the nut in place…

View attachment 111126

I might consider removing most of the excess of the threaded end and putting an acorn nut on there, with some medium strength Loctite. You don’t really need a washer as the metal plate acts as one. My only concern would be that I often carry big lenses by the foot and that excess thread could do a number on my knuckles. 😳
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Correct, I meant a Nyloc nut :) and yes loctite will accomplish the same thing. Only reason to use a washer is to avoid marring the surface of the foot, if you care .
 
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Henjar also says stainless inserts aren't needed for QD attachment points. He feels hard anodizing provides sufficent protection.

Years ago at Edwards AFB we used various types of QD lifting attachments for Titan rocket motor fixtures. Never had a problem with them.
 
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xxx said:
Henjar also says stainless inserts aren't needed for QD attachment points. He feels hard anodizing provides sufficent protection.

Years ago at Edwards AFB we used various types of QD lifting attachments for Titan rocket motor fixtures. Never had a problem with them.
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Makes me wonder why there were no issues for rockets, yet for cameras there’s issues 🤣
 
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Wrogu said:
I guess you ratę chinese manufacturing too low. They do stuff proportional to costs. If you pay premium you get premium quality. On the other hand if you buy as cheap as posssible ... They have interesting solutions 🤣 their 20tb ssd for 10usd are a nice example.
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Chinese have great manufactoring capabilities and can make great things. Just ask Rolex, Louis V. , etc. etc. They are also masters at stealing others technology and flooding markets with low-priced knock-offs built with their infamous "tofu-dreg" construction methods. Their quality control mostly is unknown. Remember a few years ago all the panic from the Chicom-made fake Mil-Spec fasteners entering the aerospace supply chain?
 
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100% true
xxx said:
Chinese have great manufactoring capabilities and can make great things, just ask Rolex, Louis V. , etc. They are also masters at stealing others technology and flooding markets with low-priced knock-offs. Their quality control mostly is unknown. Remember a few years ago all the panic from the Chinese made, fake Mil-Spec fasteners entering the aerospace supply chain?
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I met someone yesterday that is using a QD on his sony with 300mm lens and has a couple of close calls. Said he always needs to make sure his button pops out all the way after he inserts into his lens foot. Didn’t know the brand
 
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I started off with a cheap version years ago, but soon lost faith in it. I have changed a couple of times, however since purchasing a Kirk lensfoot with QD for my 400mm AND a kirk QD plate for my Z9 and Z8 and finally using Promedia Gear QD clips (hence 2 attachments points, one on lens, other on camera), I have full confidence in my set up.
Each time I use them, its a simple 'tug' check to make sure everything is secure. I am a big believer in you get what you pay for.
 

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MatthewK said:
I personally don’t trust QD simply due to the varying tolerances in QD connectors, QD sockets, and the potential for unforeseen wear over time (even though I feel it’d probably be fine for our relatively light use with camera gear, considering it’s proven to withstand a ton of abuse in the firearm/military world).

On all my lenses, I swap out the tripod foot to Hejnar, and his feet have QD sockets. Since I prefer Peak Design straps, I wanted a solid place to attach the anchors, so landed on this solution from Magpul, their QD Loop Adapter:
View attachment 111151

It locks into the QD socket, and it’d take an act of God to rip it free. May be a good, minimal option if you’re in the Peak Design system.

View attachment 111155
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I just got three of these for my lenses. I was looking for something more permanent and this fits the bill. Thanks @MatthewK

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Hooligans Imagery said:
promediagear.com

A50 Peak Design Key Tether for Everyday Backpack V2

Key Features Replacement Key Tether Replace or add another key tether to your Everyday v2 Backpack or Tote with this Peak Design Key Tether, which holds your keys and more.
promediagear.com promediagear.com
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The marketing of this is holding a set of keys (no weight), I didn't see how much weight it could handle. The PD connector is good for a camera and lens but would this tether handle that weight?
 
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Any fishing tackle shop will make a up high breaking strain 10cm fishing line safety loop with clip. Thread the loop end through the base plate and the other end with the clip to QD connector buckle on camera strap. Costs about AUS$5 per tether here in OZ. If the connector breaks, your gear will not fall to the ground.
 
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I only trust a locking carabiner clipped into a screw in anchor. Also amazed there aren’t more monopod disasters where people just lock a heavy camera / lens setup into a RRS type lever clamp and carry over the shoulder. I do the same thing but run an extra safety strap from the monopod to the camera.
 
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