Buying my first dslr

Vtec44 · Nov 27, 2011

fjrabon said:
Low f/stop is what allows fast shutter speed, given a certain ISO. Usually when you refer to a lens as being fast, it's because it's got a low f/stop. No lens actually has trouble physically opening and closing the shutter fast enough. The issue is whether or not enough light gets in for a proper exposure at that shutter speed. Hence low f/stop = fast lens.

Yes, low f/stop allows fast shutter speed but low f/stop doesn't freeze motion. Also, "low enough aperture, that you can freeze the bike", to me is an incorrect statement. Low aperture = small aperture opening = less light = slower shutter speed.

IMHO, you need to find that right shutter speed to freeze motion enough at a given aperture for the correct exposure, then you can get creative with changing the one or the other, or both. At f5.6, 1/200 shutter speed, I will get an acceptable exposure under some lighting condition and still yet get blurry pictures compare to f5.6 1/500. The toughest part is always finding the right "fast" shutter speed to freeze motion yet still convey speed.

Obviously fast lens refers to large aperture opening, and they're not cheap. lol

hod928 · Nov 27, 2011

Hickeydog said:
I hope you're not being paid by the track owner, nor does the track owner expect any photos for his use. No offense or anything, but your first few days (weeks....months....in my case, years) with a DSLR will contain a bunch of shooting and absolutely no good photos.

lmao, no the track owner is my main sponsor. all the work is being done free of charge, i want to take photos, he wants someone to take photes during the race. I told him i would be intrested...Thank you for shutting my dreams down to lol

Hickeydog · Nov 27, 2011

hod928 said:
lmao, no the track owner is my main sponsor. all the work is being done free of charge, i want to take photos, he wants someone to take photes during the race. I told him i would be intrested...Thank you for shutting my dreams down to lol

Don't mean to shut your dreams down. I just wanted to make sure that you know what you're getting yourself into. I've seen run out and buy the most expensive equipment they can (several thousand dollars), and are completely crushed when their photos looks the same as the ones from their P&S.

Plus it doesn't help that I have all the social sensitivity of a Sherman Tank........

fjrabon · Nov 27, 2011

Vtec44 said:
fjrabon said:

Low f/stop is what allows fast shutter speed, given a certain ISO. Usually when you refer to a lens as being fast, it's because it's got a low f/stop. No lens actually has trouble physically opening and closing the shutter fast enough. The issue is whether or not enough light gets in for a proper exposure at that shutter speed. Hence low f/stop = fast lens.

Click to expand...

Yes, low f/stop allows fast shutter speed but low f/stop doesn't freeze motion. Also, "low enough aperture, that you can freeze the bike", to me is an incorrect statement. Low aperture = small aperture opening = less light = slower shutter speed.

IMHO, you need to find that right shutter speed to freeze motion enough at a given aperture for the correct exposure, then you can get creative with changing the one or the other, or both. At f5.6, 1/200 shutter speed, I will get an acceptable exposure under some lighting condition and still yet get blurry pictures compare to f5.6 1/500. The toughest part is always finding the right "fast" shutter speed to freeze motion yet still convey speed.

Obviously fast lens refers to large aperture opening, and they're not cheap. lol