Help Required?

Posted 05/01/2009 - 13:04 Link
Hello

I like taking pictures of radio control cars. I went to an indoor event yesterday, but was having difficulty in finding a decent shutter speed?

I was finding that a stop of F4.5 with a ss of 1/45-90 was showing alot of blur, but if i up the ss to 1/1000@ f4.5 i was getting dark shots...

These cars were doing between 30-50mph, these were indoor, a school hall, it was well lit.

Please help me.....
Im using a K10D
Mac
Posted 05/01/2009 - 13:11 Link
Nick,

Hi,

Pls fill in your location in your profile.

What ISO were you set at?

You'll need a good flash to freeze action like that at lower ISO's.

All the best!

Mac from Montreal

SP, SPII, SPF, PZ-10, P30, SFX, K110D, istDS, Optio 60, Z-10, H90, RZ10, I-10, f3.5 28mm, f1.8 55mm, f1.4 50mm, f3.5 135mm, f2.5 135mm, f4 50mm Macro, f4.5 80-200 F, f4 35-70, f3.5 28-80, f3.5 35-135, f3.5 18-55, f1.8 31mm Ltd., two Auto 110's, Auto 110 lenses and filters, tubes, bellows, Manfrottos and a sore back.
Posted 05/01/2009 - 13:17 Link
Thanks, im still learning at the mo...

What would you recommend?

I was at 100 ISO

I do have a AF360 FGZ flash gun, but wanted to do continous shooting. I am fine outdoors...
MattMatic
Posted 05/01/2009 - 13:26 Link
When shooting indoors, even with flash, you should be using ISO800 or more
That will increase the flash gun's effective range and ability (that's why the shots were underexposed - you were asking too much of the relatively small flash gun. You'll need a flashgun the size of a large brick to shoot in a large indoor space with ISO100 )

My recommendation:
* Use ISO between 400 and 1600
* Shoot RAW if you can (it will give you extra lattitude later)
* Use a wide-ish aperture (as you have already)
* If the car is moving that fast, you should pre-focus and anticipate, or perfect your panning technique
* Turn off SR (especially if using panning)
* Use trailing-curtain-sync on the flash

If the flash becomes the predominant light source, then don't worry too much about the shutter speed - the flash should freeze the majority of the shot. In fact, you probably want to use a slow-ish shutter speed, with panning, and trailing-curtain-sync on the flash (you'll then get "motion blur" with the car well defined by the flash burst).

Hope that helps!
Matt
http://www.mattmatic.co.uk
(For gallery, tips and links)
Mike-P
Posted 05/01/2009 - 13:53 Link
MattMatic wrote:
You'll need a flashgun the size of a large brick to shoot in a large indoor space with ISO100 )

My recommendation:
* Use ISO between 400 and 1600
Well that explains a lot .. thanks.
Anvh
Posted 05/01/2009 - 14:16 Link
sonicthegoldfish wrote:
I do have a AF360 FGZ flash gun, but wanted to do continous shooting. I am fine outdoors...
and too add on the rest, if you use an higer iso you can drop the outputt of your flash so it can flash 3 or 4 times continously.

It might be a fun idea to use the flash at trailing curtain mode so that you get those speed lines like this link

Good luck shooting
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

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