robertjerl wrote:
What set you off? Feel better now?
And in the first link you give RRS mentions the load capacity of some of their tripods. Guess they aren't responsible.
But most tripods do include weight capacity, at least the ones I have looked up. (well not the cheap "toy" tripods).
No matter now good a tripod is at canceling vibration if it can't hold the weight it is useless.
Oh, I use a Nest tripod and gimbal head most of the time. For macro work a Manfrotto geared head gets the nod. Come to think of it they all gave load capacity in their spec lists. Guess they aren't responsible either.
What set you off? Feel better now? br br And in ... (
show quote)
What set me off? The continuous bad information offered as sage advice when it comes to tripods.
If you read RRS's 3 pages on tripod selection it's pretty clear what their position is on load ratings:
"When it comes to selecting a tripod, it’s important to have a means of comparison for the performance and support each can offer. On one hand, this is a simple measurable value – how much weight can the tripod hold up safely without collapsing or failing in some way.
But the unseen vibration damping performance is difficult to quantify itself, so we must use other means of comparison. By separating the tripods into size “class” groups, we can use the focal length of the lens as a guideline to make sure a tripod can adequately dampen vibration to allow that lens to resolve detail at full power."
Or did you miss this?
The point is that the traditional method of using load capacity is inadequate because it only speaks to avoiding structural failure, not vibration damping, which is the whole reason why you buy a tripod in the first place. If load capacity where the only thing that was important, the $45 tripod you can get at Walmart would be more than adequate. But in practice, it isn't. Not even close.
RRS is very clear about load capacity and vibration damping:
"Most photographers, however, are using gear that weighs much less than those ratings.
Technically the smallest tripod, our TQC-14, could hold a 500 or 600mm lens without collapsing. So why don’t we recommend that combination?It all comes back to vibration.
MAGNIFICATION GOES BOTH WAYS
The longer the focal length, the more vibration can be apparent (thanks to the magnification of the lens and variables of longer optics), and therefore the higher the demands for eliminating or preventing that vibration. Based on this principle we focus more on
results-driven comparison based on the gear that will be supported. Having a load capacity much higher than the weight of the gear gives additional capacity to be used for additional ballast or weight to be mounted on the tripod, which helps with both balance and inertia (preventing vibration)."
Perusing their charts and other information - you will (or not) come to the conclusion that load capacity is meaningless, since even their smallest, lightest travel tripod will support - as is resist gravity - an 8.5 lb load, like a crop camera with a Sigma Sport - total weight of just over 8 lbs. After all, it has a 25 lb load capacity. But if you see that combo in action, you'll quickly see why the beefier tripods are far better with longer lenses. By your measure, the TQC-14 is 2-3 times more than you need. But the OP has a 300mm lens, which on a crop camera has a field of view equal to 450mm. So it doesn't come close to adequately supporting the lens with minimal vibration.
They go on to say:
"Note that the focal lengths listed are independent of physical weight or lens speed (aperture). This means that even though a 300mm/f4 lens might weigh only about as much as a 70-200mm/f2.8, you still have the same magnification factor to deal with in terms of “revealing” vibration within the system. This may be emphasized by the lower mass of the lens as well, since a lighter setup has less overall inertia (resistance to outside vibration). Adding tripod ballast by hanging weight from the built-in hook helps offset that difference."
So, as you can see, tripod selection should not be based on load capacity. Instead, tested performance data based on vibration dampening is far more reliable. Typically, the thicker the top leg and the larger the camera base is, and to a lesser degree how many leg sections, will be a more accurate predictor of what tripod will be adequate.
Lastly, in order to be adequate, the design and construction needs to be "beefy" and by default will have an amazing load capacity, anywhere from 3x-12x more than the camera load. It is not possible to have the vibration damping and not support heavy loads.
So, no - 150% of camera/lens load is a lousy way to select a tripod.
You've been around this forum for a while - this topic has been covered ad nauseam, probably 100s of times. The story remains the same. There are those who advocate using $100 tripods (or less) and those that blindly follow them and waste their money, and those that "get it" and buy the right tripod right off the bat.
My advice is clearly not personal in nature. It is supported by many mfgr sites. On the other hand, even though I asked you for anything that a reputable mfgr or reviewer has written that supports your claim, and you just double down, and somehow try to discredit what I brought to the table and by misinterpreting what is contained in the links I provided.
You and I agree, btw on one point - you don't need a "pro" (whatever that means) tripod to get decent results. And if you read my recommendations, only RRS Gitzo and Induro can really be classified as "Pro" tripods. The others - Sirui, Benro, Feisol, and let's put Nest in there as well - are value priced but very serviceable alternatives. The Walmart/Costco/Sams tripods are indeed - toys and not worth consideration.
I hope this clarifies the rationale behind my recommendations, and hopefully informs the decision the OP is about to make. With any luck, he will avoid the high cost of bad decisions based on bad advice - why should he end up paying $550 to $650 for two tripods, one a $150 mistake, and the other the correct tripod?