Not enough info.

You know!

Oh Hell No. I could never afford that!

Talk about bloviation, what?

Wow, Mr. Lugo, you do some beautiful work. Thank you.

No the mistake is all yours. OP stated multiple lenses.

David Busch, unquestionably.

You are right. Far too expensive for the job they do; or, are they. Of course you can buy a tripod for $20, and you get, to belabor the cliche, well, you get what you pay for. Purists and professionals demand the very best for stability's sake. I am lousy at taking sharp pictures so on most of my outings into the "wild" and specially with a "long" lens I do require a tripod, and I've had a few. The theory goes that metal tripod legs have a tendency to easily vibrate as opposed to carbon fiber legs which theoretically tend to dampen vibrations.

I let you in on a secret, I haven't seen the difference between metal (aluminum mostly) and carbon fiber, as far as vibration goes. But then again, what do I know? For me is the weight of the tripod that I seek to remedy, and for that I must go with carbon fiber. I like my tripods sturdy, and that adds weight. I use Benro products and I am happy with them. To your question, tripods are expensive because you need them. Look around, if you have the money you can buy Gitzo, RRS, ProMediaGear, and other highly price-inflated tripods. For my money, if you look and research you can get the same quality for half the price, and half the price on a good tripod still puts a dent on your wallet. Besides the above mentioned brands, consider Benro, Induro, Manfrotto, etc.

Then again, depending in the type of photography you do, you may not need a tripod.

Welcome to hedgehog. Happy shooting.

Yours, or did you give her permission to work on your photo and publish as his?

I am with you Linda. Ask anyone who has developed their own photographs, the amount of post production work that took place in the dark room; filters, variable development times, paper media types, etc, etc, just to try to achieve that vision, that art. All the great photographers put in that post time. Hey, thanks for software that gives me the ability to pursue that vision. There is no wrong way, no right way. It all depends what you want to achieve.

Which only proves that all is possible.

I'll revisit this with info as to effects using the Kenko extenders with the 70-300. It is true that the 70-300 does not appear on the Canon chart as being compatible with extenders. By the way, and I may be repeating the obvious, the 135mm limitation is applied to primes, TP's and zooms can use the extenders at below 100mm.

To me, as long as you are not hurting your equipment, all is fair in the pursuit of that masterpiece.

But the Kenko extenders can, just get the GDX models. Having said that, be aware that an EF-S lens attached to a full frame through the GDX Kenko, will always give you some "unwanted" vignette, specially at the widest angles.

Say Whattttttt? Nice Corvette, by the way. Later, I am going to be fed.

I also use Benro tripods. Their top tripods, for the money, although a bit heavier, are the equals of Really Right Stuff and Gitzos, and did I mention the price?
Tripod heads, I use a Really Right Stuff. No argument.