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4 Days Ago   #16
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Hmmm, thats not great...




4 Days Ago   #17
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Just an update to the Sirui Head its not the K-20x model its the K-30X I found the box from the store in my closet My mistake I don't have the base plate ( misplaced it somewhere) so I was identifying it from memory and I remember buying the middle model and the K-10x but I guess it was the K-30X I finally went with over the k-20X
3 Days Ago   #18
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QuoteOriginally posted by Ian Stuart Forsyth Quote
I broke down and bought a acratech ball head
Just curious, did you check the bottom screws on the Acratech, or whatever holds it together?
3 Days Ago   #19
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QuoteOriginally posted by Ian Stuart Forsyth Quote
It was my landscape setup and at the time I was using D800 and nikor 50 1.8 g something that I would not consider as large
No, not what I'd think of as a ball breaker by any stretch.

I'll be keeping an eye on mine, which is the much smaller E10 that comes on the ET-1204. I've always felt it was a nice performing tripod and great for carrying. Not sure what I'd replace it with.

Thanks for the update

3 Days Ago   #20
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Some sort of rotation stress may have been too much for the screws. I am not blaming anyone specifically, but that could be a possible cause.

Like I said, I have the K-20X, and it works flawlessly.

As was mentioned in another post, there is a warranty on the Sirui product.
3 Days Ago   #21
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QuoteOriginally posted by csa Quote
Just curious, did you check the bottom screws on the Acratech, or whatever holds it together?
It uses 4 bolts



just so you can compare the size

---------- Post added 04-15-2018 at 04:10 PM ----------

QuoteOriginally posted by C_Jones Quote
Some sort of rotation stress may have been too much for the screws. I am not blaming anyone specifically, but that could be a possible cause.
Like I said, I have the K-20X, and it works flawlessly.
I felt that if it was a rotational stress we would see bent screws, these just pulled out of the main body, this was my newer head I use for landscape and not as a beater so I never used it roughly. On the other hand my beater heads have been getting abused for meany years.

With this head it was used on my tripod I mainly use a gimbal head on and the only time I use the head is for local work with very little traveling so its not like the head is being carried around all day on the tripod when I want to use it I take off the gimbal and replace it with the 30x for the rare times I need it like street scape at night .

One of the reasons why I purchased the larger head was so that I would feel safer for use with larger lenses like the 15-30, heck on my beater heads I used the 150-600. I personally would not use the K30x carrying a light lens and body while they are attached to tripod( something I have done for many years with my beater heads) Like I said I love the head and how nice it works and I am just showing what has happened to me with this head
3 Days Ago   #22
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QuoteOriginally posted by Ian Stuart Forsyth Quote
I felt that if it was a rotational stress we would see bent screws, these just pulled out of the main body, this was my newer head I use for landscape and not as a beater so I never used it roughly. On the other hand my beater heads have been getting abused for meany years.
I would suspect vibration in the bag during transport and or simply regular use with anything other than a perfectly balanced level load. The alloys used by some tripod and head makers are often little better than pot metal and tend to fail by flaking. Even small stresses over time can cause damage.


Steve
3 Days Ago   #23
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QuoteOriginally posted by stevebrot Quote
I would suspect vibration in the bag during transport and or simply regular use with anything other than a perfectly balanced level load. The alloys used by some tripod and head makers are often little better than pot metal and tend to fail by flaking. Even small stresses over time can cause damage.
What has worried is that for the times I have used the head I would try and balance the head load the best I could, this make it easier to setup the camera. Now if I was to use the head as I would like others take for example this kind of setup


Just deciding to use the head in this manner is putting a lot of load onto those 3 screws even when a lighter setup is used, Until I had this failure I would not have given this kind of setup a second thought. For the record this is the K10X head and the whole reason why I picked it up for a macro work where I intended to use it this very way on a lighter tripod Now its altogether different question as to should I. It is worth noting that I have found no Sirui tripod that allow for that kind of configuration of the head maybe this is telling me something.

I have many applications where having the ability to center the mass thru the head and pass that mass thru that head without an offset off to the side is not an option



Most of the time this head sat not attached to a tripod and in the bag sitting in a lens bag and only used when I took of my gimbal head, I have 3 or for other setups that I use for landscape. The K-30x was never used as shown above in the macro position or with the tracking head

2 Days Ago   #24
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QuoteOriginally posted by Ian Stuart Forsyth Quote
I have many applications where having the ability to center the mass thru the head and pass that mass thru that head without an offset off to the side is not an option
As do most of us. My tripod has an articulated center column that allows all sorts of angles and orientations and the thought the head might suddenly come apart is not something I have ever considered. Off axis load is a fact of photographic life and as long as the limits are not severely tested, failures should be rare.

BTW, my comment was not intended to lay blame on you (the user), just to indicate how such a failure might happen during reasonable use. I agree with you that the screws that failed are not adequate for purpose.


Steve

BTW...those are some beautiful camera supports.

Last edited by stevebrot; 2 Days Ago at 09:03 AM. Reason: clarity
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