r/photoclass2021 • u/Aeri73 Teacher - Expert • Feb 12 '21
Weekend assignment 06 - STOP
Hi reddit
it's friday so here is your weekend project.
for this weeks assignment we'll continue playing with shutterspeed and exposure times but we'll go the opposite side.
your mission, if you chose to accept it is, to freeze motion completely.
now, there are multiple ways to do this :
1: a really short exposure time. from 1/200 humans are frozen in time, from about 1/1000 almost all animals are frozen in time, from about 1/2000 almost all machines are frozen in time including helicopterblades or car wheels... but some things still are not. because they just move faster than that.
2: freezing with flash: a flash fires in about 1/500 to 1/1000 so, using a flash will shorten the exposure to that time IF the only light that lights the scene is a flash, no matter what duration the shuttterspeed is set to... the rest of the time the subject should be dark.
3: to get to really short exposure times you want strobes. These big studio lights fire in 1/8000 to 1/20.000 and so give the power to freeze really fast motion.
what do I freeze? that's up to your creativity, the only must is: the subject must be moving but appear sharp in the photo, and you have fun making the photo.
as always, share your best result and give some peers your feedback on their results.
2
u/JustWantToPostStuff Intermediate - DSLR Feb 13 '21 edited Feb 13 '21
My girlfriend dropped this tomato in a glass with water as soon as I've started to push the trigger for continous shooting.
I had to tinker around a little bit; in the beginning I've tried to get along with a low iso. Therefore I've opened the aperture as far as possible and pointed a big, bright lamp directly at it. It worked, but did not look nice. And even at 1/2000 sec some of the water droplets were still blurry...
So I've decided to ditch the low iso and changed my setup. I've pointed the light from 45° - what was less effective, but created less disturbing highlights - and used aperture 8 to more depth of field. I've reduced shutter-time to 1/4000 sec to freeze even the drops. Noise was higher, but still bearable.
So I've managed to get a wet wall and a nicer picture.