Just as an aside. I do the farmers markets, sell the note cards etc., but the real reason is so I can get my portrait work out into public, and to book sessions for my portrait photography business. I find it very effective for that. The cards and prints pay for the booth, but it's the family sessions that I book that make me huge money.

I also have the Sigma 150-600 and I would not recommend it for Motocross. I use it for small birds, but a lot of times, I still prefer to use my 300 2.8 for that, and then crop in post.

Why are you looking for a zoom? I shoot motocross with about an even split between 80-200 2.8 and a 300 2.8 with a slight edge to the 300. That's on a crop sensor camera Nikon.

Why are you not allowed on the track? I am assuming you mean somewhere other than the stands when you are saying track, and not out on the actual track.

exactly. my 8x10 costs me $65 to produce. The actual print is only $2.50 but by the time you get the rest added in, it's $65 my cost.

Price it for what? And what are you selling? Are we talking portraits, art, postcards?

But I would suggest much of the advice of taking your cost and multiplying by X is the wrong way to do it.

When I sold framed and matted art photos, there sold in art galleries for $1500. Others have had their work sell for much more than that. If I am selling for commercial use - then I license it based on size, distribution, and length of license. If I am at a local farmer's market, then 4x6 postcards go for $5 they cost me about 1 cent because I have them printed on actual printing presses rather than a photo print. An 8x10 portrait for a client ranges from $375 to $675.

As you can see there are lots of variable

They may not care today, but they will care when you do become famous.

The short answer is because it has lost the path to the drive.

The long answer has so many variables that makes it hard to pinpoint a cause. Mine usually happens when I've been mucking with the drives. Sometimes when you plug the same external into a different USB port it will change the drive letter and throw everything out to lunch. I have all my drives named now with their drive letter, so if it doesn't match up with what explorer is telling me, I change it back to what they are supposed to be.

I also find that updates to either the operating system or to lightroom can do the same thing. The second last Lightroom update, lost my catalog, my presents for importing, exporting etc. Because I have my folders named for what is in them, it was easy to find the catalog, but it still didn't include any of the presets. For those I had to go looking to find where they were hid - and hid they were because they were in a hidden folder, under the users. Once I pointed to the right directory and restarted Lightroom they showed up, and then I promptly went into preferences and and changed the setting to store presets with the catalog.

Yep the grip doubles the battery life. 48 seconds. for how many thousands more?

There is something about a battery life of 24 seconds for the sony that gets me. How do I get that number - the battery is good for 480 exposures. People keep pushing the 20 FPS rate as being a great feature. So you can blow through those 480 exposures in 24 seconds. Even if you don't use the 20FPS, the fact that the battery is only good for 480 exposures makes it not a practical solution for sports. It was the battery life of the D200 that got me to upgrade to the D300. With the D200 I had to pack four batteries to make it through a game.

Yep, you can say that again, and again, and again. When I got in trouble at school (which was frequently)- I was nailed to the wall when I got home. But the teachers are just as much to blame. When I was in school late 50s to late 60's, male teachers were in three piece suits and ties, female teachers were in the equivalent. They were authority figures that you called Mr. Miss, Mrs. they were not your friends, there were your teachers. I have my second grade teacher - who is nearing 100 years old, and she is still Mrs. Penrose, and even though she is a frail old lady now, I still cower in her presence (and given that I was a Sgt in the Airborne, cowering is not something I do). Today, the teachers are more worried about being friends. There is no dress code and the teachers will come to school wearing the same stuff that students wear and are all called by their first names.

Nope. The teachers will beat them down to the lowest common denominator. Remember, there is no first place in school today, everybody gets a medal just for showing up.

I think everybody is reading way too much into this. I graduated in 1968 and if there would have been Facebook way back then, I could have probably posted the same thing. I never went to class, I never did homework, and I graduated. I continued it in College where I got degrees in Environmental Science, Law Enforcement, Advertising & Public Relations, and Journalism. My career has included Law Enforcement, Military, Journalism, and Photography. Now really at 17-18 years of age, who has any clue about what life holds in the future. I think that everybody (not just a few that cannot get out of it) should spend five years in the military. Why? Because basic training is a great equalizer. It takes the haves, and the have nots and makes them equals. It rips them from the bosom of their family and introduces them to the real world in a way that cannot be duplicated. It takes the members of the gangs away. It gives those that have never had an opportunity, an opportunity to shine. It takes the ones that have always had mommy and daddy running around cleaning up their messes, the need to take responsibility for their own actions. It solves the youth unemployment problem, and it gives them time to mature, get a grip, and gain a useful trade. Remember for every grunt humping a ruck and carrying a rifle, there are 10 others that are behind him making sure he gets fed, clothed, paid, etc. that the plumbing is fixed, that the electricity is working. Those are all useful trades that have huge shortages in the real world, meaning that when they get out - they can find a job. Those that don't want to do that, can now go to college, and it's free. Most importantly, instead of a clueless 18 year old, you are now dealing with 23 year olds that have the maturity and the ability to see what they really want to do with their lives.

So, considering that the shutter speed was well below the sync speed, it has nothing to do with the shutter speed. That means it is either the flashes (which are on full power) are either not firing, not close enough to the subject, the aperture needs to be opened more, or TTL is screwing everything up.

Well that depends on how old you are. I wouldn't miss it anymore. But 20 years ago it would have been a huge sacrifice.

Is that the $6000 camera with the 20 fps and battery charge is good for 480 exposures?