Author Topic: What speed?  (Read 4318 times)

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Offline subbu68

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What speed?
« on: July 12, 2011, 08:24:39 AM »
What is the minimum speed required say at f/5.6 for sharp images when taking photos of flowers and plants and they are swaying in a breeze? Consider a normal gentle breeze please.
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Offline Fud

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Re: What speed?
« Reply #1 on: July 12, 2011, 12:33:44 PM »
Depends how close to the flowers you are as the closer you are the greater the angle of view they sway through so the faster the speed needs to be so anywhere form 1/60 to 1/160 probably
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Offline Clive

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Re: What speed?
« Reply #2 on: July 22, 2011, 02:16:47 AM »
Good question. You may not like my comments. Simply, if at all possible, "for sharp images," don't do it. I live in a windy region. As I write, the airport about 8 km away is reporting WSW 37 gust 52 km/h. I can't tell you how many times I want to take photos and don't do it because I know I wan't be happy...like this afternoon.

Naturally, if you have no options, then shoot away. But if possible, consider wind screens, or coming back when the wind is down.

Depending on focal length, fud has probably stated the minimum speed. For a one-chance-only situation boost the ISO to increase speed. If you are looking for a "wall hanger," then come back another day.

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Offline CHOLLY

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Re: What speed?
« Reply #3 on: July 03, 2013, 06:35:42 PM »
Also, the quality, quantity, and direction of the light should be considered....
There are people who actually think LENS stabilization is better than sensor shifting!

Offline chappo1

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Re: What speed?
« Reply #4 on: July 04, 2013, 02:55:27 AM »
And which way they are swaying and which lens you are using.
If they are moving forwards and backwards (towards and away from you) then you need to consider your DOF
see here
http://www.dofmaster.com/dofjs.html

Plug in a few numbers and you will see that close up, with F5.6 and say a Tammy 90, you do not get much leeway at all.
As Clive says, if it is windy come back another day or put some sort of shelter up.....john
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Offline Stef.

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Re: What speed?
« Reply #5 on: July 07, 2013, 11:39:01 PM »
For the once in a life time situation: set the camera to manual focus and turn peakin colour on. This will show you what is in focus nd what not. Now wait for the breeze to blow the flower into the focus peaking range and press the shutter. The faster the shutter speed the better. I would not hesitate to up the ISO to 1600 or even higher.

Otherwise, as Clive said, come back another day as the aboce is pretty much hit and miss.
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Offline marc pk

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Re: What speed?
« Reply #6 on: July 08, 2013, 10:27:22 AM »
Remember to keep anti shake on, unless you are using a tripod!
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