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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 17 Dec 2014 (Wednesday) 10:12
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EF 100-400mm f/4.5-5.6L IS II USM Review WOW!

 
patrol50
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Nov 03, 2015 01:27 |  #2326

dodgyexposure wrote in post #17768468 (external link)
Flamingo galahs!! I don't think I've ever seen galahs with so much colour . . .

hmm yes they are interesting and very bright galahs kev - wee bit brighter than the ones that hang out at my place - so what are you feeding them ;-)a

cheers rob

must be the magic v2 catching brighter colours


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Choderboy
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Nov 03, 2015 01:33 |  #2327

Archibald wrote in post #17770276 (external link)
Unfortunate. The lens is built like a tank, they say, but these four screws are a big exception. It's hard to understand why Canon did not make them bigger.

And why make collar non removeable?


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bidkev
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Nov 03, 2015 01:54 |  #2328

patrol50 wrote in post #17770342 (external link)
hmm yes they are interesting and very bright galahs kev - wee bit brighter than the ones that hang out at my place - so what are you feeding them ;-)a

cheers rob

must be the magic v2 catching brighter colours

Sunflower seeds Rob. They've been back since that first visit and don't seem as brightly coloured today, albeit more bright than other galahs that I've seen. Breeding colours?


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patrol50
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Nov 03, 2015 02:34 as a reply to  @ bidkev's post |  #2329

could well be kev - cheers rob


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digital ­ paradise
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Nov 03, 2015 05:35 |  #2330

Choderboy wrote in post #17770237 (external link)
After much thought, I have decided I will use metal epoxy to permanently assemble collar and plate.
Pics showing the bits could be helpful to other owners if they have problems.

Collar base with the plate in place.
If I strip the threaded insert for the foot I'm screwed, pun intended. I doubt that will happen and then I would need to replace collar, which is really the situation I'm in now.
QUOTED IMAGE

One of the 4 screws saving your gear from gravity.
QUOTED IMAGE

4.5mm long with head. I measure about 2.5mm protruding through the plate.
QUOTED IMAGE

Collar with plate removed.
Bottom right hole shows some red thread locker was used. No other evidence of thread locker found on other three holes or screws.
The thread locked screw was the one that would remain tight while either 2 or 3 of the others were loose when I would detect movement in the foot.
QUOTED IMAGE

Looks like Canon is trying to save money on Loctite :-) I just checked and fortunately mine are tight. If you look at the foot there are another 4 little screws keeping the lens from gravity.

If I was going to use metal epoxy I would probably use red locktite on the 4 screws as well. Maybe getting 4 new ones is a good idea as well. Maybe rough up both surfaces as well so the epoxy binds better.

I leave collars on all the time which have RSS plates on them. I often set it at about 10 o'clock and rest it on my thumb.


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digital ­ paradise
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Nov 03, 2015 05:48 |  #2331

Archibald wrote in post #17770276 (external link)
Unfortunate. The lens is built like a tank, they say, but these four screws are a big exception. It's hard to understand why Canon did not make them bigger.

Not sure but if you use the right alloys you would be surprised and how much weight one can handle. I have yet to hear of one letting go yet and people use the black rapid strap and other methods. The lens hangs upside down and my guess is those 4 screws are exceeding Canon specs? It is intended for a tripod only?

I'm pretty sure I read somewhere Canon stays you are supposed to use the body strap mount only which contradicts what I have read about not holding the combo by the body only due to strain on the bayonet mount. I'm not sure if Canon endorses any system that carries the combo via the foot. I have not looked into this for a while now.

Any time you carry via the foot or tripod socket you take a risk. This is why so many people have additional custom back up strap methods. There was a very long thread about this on this site once.


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Post edited over 3 years ago by bidkev. (3 edits in all)
     
Nov 03, 2015 06:22 |  #2332

digital paradise wrote in post #17770458 (external link)
Not sure but if you use the right alloys you would be surprised and how much weight one can handle. I have yet to hear of one letting go yet and people use the black rapid strap and other methods. The lens hangs upside down and my guess is those 4 screws are exceeding Canon specs? It is intended for a tripod only?

I'm pretty sure I read somewhere Canon stays you are supposed to use the body strap mount only which contradicts what I have read about not holding the combo by the body only due to strain on the bayonet mount. I'm not sure if Canon endorses any system that carries the combo via the foot. I have not looked into this for a while now.

Any time you carry via the foot or tripod socket you take a risk. This is why so many people have additional custom back up strap methods. There was a very long thread about this on this site once.

It's what frightened me when I had the 70-300. I bought the Optech system (had to ship it from US as there was nobody selling it in Oz at that time). I find the strap and the shoulder sling perfect when attached to the camera via optech clips. I can hang the 5d3 and 70-105 on one side and the 7d2 and 100-400 on the other. Hardly know I'm carrying them and they both hang vertically with the lens pointing straight down. It's the same when I just have the 7dll and 100-400ll on a strap. Hung on one shoulder, again, when carrying just one combo, the combo hangs vertically. It may not be ideal, (not supporting the lens) but it certainly feels safer not having the weight of the lens "levering" against the body mount. Whenever possible, I cradle the lens "rifle style" in the crook of my arm and just lower it to the vertical when I need to rest my arm. Adjusted to the right height/lstrap length, I can keep both hands on the grip of each body to stop them swinging when I am walking fast.

Both bodies have male plates attached so if need be, with that "arms length" of optech extension strap, I can attach to monopod/tripod without even taking the camera off the sling


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Nov 03, 2015 06:35 |  #2333

I wonder has Canon endorsed any of the third party products yet? I think that was asked on that thread about this? Rumours about buying one of them out. Big risk if one fails and it has happened. Some were human error and a few the lens release was pressed while carrying. Early on there were some manufacturing defects. You have to keep an eye on the alloys and construction because everyone on this planet is always tying to save money and the make changes without telling the customer (which would be Canon). A whole new division to look after.


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Nov 03, 2015 06:40 |  #2334

Getting off topic so I'll stop but scroll down a bit and look at this big telephoto rig.

http://www.shutterbug.​com …esses#9Rdg2YBPL​vQhxhWk.97 (external link)

You can get the cradle mount at B&H

http://www.bhphotovide​o.com …IaqsZSj9MgCFZCF​aQodUEMMjA (external link)


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Nov 03, 2015 06:44 |  #2335

digital paradise wrote in post #17770488 (external link)
a few the lens release was pressed while carrying.

Just reading this sends shivers down my spine. Too horrible to imagine! :eek::eek:

Note to self: take extra care with the release button, regardless of carrying method.


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Nov 03, 2015 07:03 |  #2336

I have to make sure my TCs make that last locked *tick* when I mount them, otherwise they slowly unscrew. Sometimes have to play with the lock lever just to make sure it's locked. Dunno why sometimes they lock and sometimes not.


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Nov 03, 2015 07:56 as a reply to  @ post 17770237 |  #2337

After much thought, I have decided I will use metal epoxy to permanently assemble collar and plate. Pics showing the bits could be helpful to other owners if they have problems.

I would look into using JB weld http://www.jbweld.com/ (external link)
John


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Nov 03, 2015 09:46 |  #2338

Choderboy wrote in post #17770343 (external link)
And why make collar non removeable?

Indeed. I usually use mine handheld, and it would have been better if the collar was removable.


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Nov 03, 2015 09:56 |  #2339

300L and 70-200 2.8 II the whole collar comes off. I had to buy the collar for my 70-200 F4 IS (which I sold). Not sure why they re-desgined this lens. Less storage when you remove just the foot I guess.

Like I said those 4 screws are probably far more than enough when the lens sits on top when on a tripod. Was never meant to be upside down but I do carry it that way sometimes by grabbing the foot. I have not used it on my double BR yet and I doubt I will. Gonna check the manual for any warnings.


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Nov 03, 2015 10:29 |  #2340

The manual has no warnings but only talks about tripods and monopods. I couldn't find anything on Canon's site. I Looked at a few places. Luma Labs has something called the cinch.

I use RRS plates and picked up some kirks plate and RSS fasteners that I use with the foot and at the bottom of the body. The chinch system connects with a fastener to the foot and the other end connects to the body strap mount. If you carry it that way then the lens release is at your side but I guess it should hold.

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