Shutterspeed question

sfeyenoord1 · Post by **sfeyenoord1** » 13 Jun 2007, 15:25

Hello all fellow photographers, i've got a shutterspeed question.
What is the best shutterspped to photograph for examble the pc-7 solo display team very sharp but also with the well known propellorblur? Tnx for the answer already!!

TopAce · Post by **TopAce** » 13 Jun 2007, 15:29

Do NOT go above 350 with props and rotors, that's my rule of thumb.
Learned a long time ago from Kleintje Pils.

Kees van der Velden · Post by **Kees van der Velden** » 13 Jun 2007, 15:39

I always use 1/200 of a second. Slower still is even better but the risk of unsharpness increases. If you're watching a show and are able to take let's say ten shots or more then try a few with 1/125 and see where that leads you.
Above 1/200 props and rotors become to static in my view. Shoot a Chinook for instance with 1/350 and you'll find the big helicopter dropping from the sky like a brick!
I hope this helps. As an example I post a shot taken with 1/200

greetings,
Kees van der Velden

Cees van der Bent · Post by **Cees van der Bent** » 13 Jun 2007, 16:27

Yes it's an opinion-question again.

But I like a propellor/rotor blur in the pictures.
So, keep below the 1/350.
For jets and airliners it does not matter.

sfeyenoord1 · Post by **sfeyenoord1** » 13 Jun 2007, 16:48

Tnx for the tips, will definitly be using it at the opendays!

heatseaker · Post by **heatseaker** » 13 Jun 2007, 16:53

will definitly be using it at the opendays

if i'm looking at the weatherreports you will be needing much lower shutterspeed to get any descent shot, or even keep your camera in your camerabag [/quote]

sfeyenoord1 · Post by **sfeyenoord1** » 13 Jun 2007, 17:11

Jup but i got a invitation from yngsquad, where i can sit on the terras or proberly stand dry

And we got big umbrella's so i still can get pictures though.

Hope its dry and no low clouds

Redskin · Post by **Redskin** » 13 Jun 2007, 17:19

sfeyenoord1 wrote: And we got big umbrella's so i still can get pictures though.

Nice, an umbrella on all your photo's. Kind of hard to take pictures from flying airplanes then you have a big unbrella above your head.

Key · Post by **Key** » 13 Jun 2007, 18:06

It does not only depend on how much blur you want, but also (of course) on the speed of the blades. A turboprop like the PC-7 has a high RPM, which is also constant when flying. Piston engines have lower and variable RPMs. Helo rotor speed decreases with increasing blade length and blades get longer as the rotor has less of them, so for instance a Huey has a low RPM and an MD500 has a high one.

Erik

sfeyenoord1 · Post by **sfeyenoord1** » 13 Jun 2007, 19:01

ah ok so for a huey a longer shutterspeed then for a md500

Leeuwarden · Post by **Leeuwarden** » 13 Jun 2007, 19:15

Kees van der Velden wrote:I always use 1/200 of a second. Slower still is even better but the risk of unsharpness increases. If you're watching a show and are able to take let's say ten shots or more then try a few with 1/125 and see where that leads you.
Above 1/200 props and rotors become to static in my view. Shoot a Chinook for instance with 1/350 and you'll find the big helicopter dropping from the sky like a brick!
I hope this helps. As an example I post a shot taken with 1/200

greetings,
Kees van der Velden

Maybe a little off topic but looking at this picture I was wondering if IS or VR is of any assistance. Is there a rule of thumb where IS/VR is usefull and when not?

Glidepath · Post by **Glidepath** » 13 Jun 2007, 20:33

In theorie kan je met IS met een 125 een net zo scherpe plaat trekken als met een kortere sluitertijd icm een gewone lens.

maar: blijft staan
Hoe langer de sluitertijd, hoe meer prop-of rotorbeweging (blur is een verwarrende aanduiding).
Een hele lange sluitertijd op een stilstaande draaiende kist kan de beweging ook te ver vervagen. (de bladen die je met het oog kunt zien, wil je misschien op de foto ook weer terugzien.

met een vaste hand kun je zonder IS ook scherpe prop-bewegingrijke foto's produceren

Test eens uit op een stilstaande draaiende kist. met een 60e, 90e, 125, 180, 250, 350, 500, 750e.
dan kun je het verschil vergelijken en weet je wat te doen als je het weer eens mee maakt.

Op een stilstaande kist maakt het wel weer uit of de piloot zijn machiene toeren laat maken, of dat de kist 'idle' staat te draaien, of af staat te koelen. de rotorbalden van de hiervoor geoemde typen draaien dan net weer langerzamer en een sluitertijd bewust kiezen is dan m.i. nuttig.
Een R-44 die idle draait, kun je met een 250 stilzetten. wil je dat niet, dan moet je de sluitertijd verlengen. 125e of misschien wel 90.
De IS helpt je dan met een scherpe pic.

succes

succes

EHAM · Post by **EHAM** » 13 Jun 2007, 21:09

sfeyenoord1 wrote:What is the best shutterspped to photograph for examble the pc-7 solo display team very sharp...

That depends on the lens too, not only the shutter speed. Why would they have expensive lenses, if there's no difference in sharpness

heatseaker · Post by **heatseaker** » 13 Jun 2007, 22:02

Jup but i got a invitation from yngsquad, where i can sit on the terras or proberly stand dry And we got big umbrella's so i still can get pictures though

the place were you stand has in my opinion nothing to do with the available light. If there isn't any light you're always screwed wether your standing dry or wet. Dry is obviously nicer but the pictures will still be "throw away material"

The place were you stand is imho more important when the weather is clear and you don't want to face the sun while shooting the airshow

sfeyenoord1 · Post by **sfeyenoord1** » 14 Jun 2007, 11:29

Well i use the Sigma 70-300mm APO DG Macro so

And it wouldnt be trash, just depends on where youre standing dry though

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