Motorsports Equipment Suggestions

[gary sempler]

Rekd. what is the focal length on your d300s with a 70-200. On mine I'ts a105-300. The 300 Is 450 And 630mm when the 1.4 converter is used.Do the math.By the way I went to school in Horseheads N.Y.

 

[edouble]

Rekd. what is the focal length on your d300s with a 70-200. On mine I'ts a105-300. The 300 Is 450 And 630mm when the 1.4 converter is used.Do the math.By the way I went to school in Horseheads N.Y.

You should not have been so polite gary sempler. Rekd deserved otherwise from the ignorant post.

 

[Rekd]

Rekd. what is the focal length on your d300s with a 70-200. On mine I'ts a105-300. The 300 Is 450 And 630mm when the 1.4 converter is used.Do the math.By the way I went to school in Horseheads N.Y.

I don't have a d300s. Didn't like the way it looked and felt. And the picts I've seen from it are meh at best. But I'll do the math anyway... and I'm new at this so bear with me...

Lets see, a lens of thickness d in air, and surfaces with radii of curvature R1 and R2...

Then you take into account the front focal distance...

And the back focal distance...

And you get... wait a minute, carry the one... no.

Oh, here we go! 70 + 200 + 300 * 1.4 = 630mm

Duh! :lmao:

/sarcasm off/

 

[CNCO]

some interesting stuff going on in here. my goal is to have a d300s and a 70-200 f2.8

 

[gary sempler]

CNCO. Check out B&H photo.Yuo can get A d300s, 70-200, 300f4 and the 1.4 converter for $5369. For that kind of money you won't find anything thats any better for sports photoraphy. Don't let anyone show you any corners to cut. You get what you pay for and it will hold it's value to.

 

[CNCO]

thats a smoking deal. if my motorcycle sells this weekend, ill definately do that. thanks!