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The Photography Thread


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the north korean pic, the danish/iranian actress, and the lady with altheimers really struck a chord. They made me want to go out and take pictures of people

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Keeping it local

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great composition and use of colour ginge

Thanks!

It's the first photo of mine in a long time that I'm happy with.

It also proves that there was actual weather in the south.

Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life. (Terry Pratchett)

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That's a cracker, classic lesson in composition.

Visit my photography site www.padge.smugmug.com

Radio 5 Live: Saturday 14 April 2007

Dave Whelan "In Wigan rugby will always be king"

 

This country's wealth was created by men in overalls, it was destroyed by men in suits.

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Birds on the Beach

1.

IMG_0830-1.jpg

2.

comingoutIMG_1437-1.jpg

3.

IMG_0844-1.jpg

Visit my photography site www.padge.smugmug.com

Radio 5 Live: Saturday 14 April 2007

Dave Whelan "In Wigan rugby will always be king"

 

This country's wealth was created by men in overalls, it was destroyed by men in suits.

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A couple more

(second post), I'm liking both of these but the second one in particular.

I was just around the corner yesterday on Formby beach.

Visit my photography site www.padge.smugmug.com

Radio 5 Live: Saturday 14 April 2007

Dave Whelan "In Wigan rugby will always be king"

 

This country's wealth was created by men in overalls, it was destroyed by men in suits.

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(second post), I'm liking both of these but the second one in particular.

I was just around the corner yesterday on Formby beach.

Very bracing. Cleared a few cobwebs away.

STUPID CUP WINNER 2006, WCC CUP WINNER 2007, SQL league winner 2008

SQL Stupid Cup and League Double Winner 2009

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  • 2 weeks later...

IMG_1157.jpg

OK guys picking brains again. What should I have done to get all of this in focus.

The amount of a photograph that is in focus (Depth of Field) depends on a couple of factors.

First the aperture selected, the smaller the aperture the more of the picture that is in focus. Aperture size is the inverse of the number select, so F4 is at the wide end (large) and F22 is at the narrow end (small).

The smaller the aperture the less light enters the camera for a given shutter speed so as you narrow the aperture you must reduce your shutter speed. That introduces the next problem, camera shake, if the shutter speed gets too slow then small movements of the camera during shooting can be a problem, shake can make the whole picture look slightly out of focus. To overcome a slow shutter speed you can adjust the camera ISO rating, this is how sensitive the camera sensor is to light. ISO 100 is generally the least sensitive setting moving up to ISO 1600 and above which allow faster shutter speeds when using small apertures in low light. The problem with high ISO ratings is that it introduces noise into the captured image, this can have the affect of making the picture look grainy.

Now to your second shot (I presume you are talking about this one).

You shot it in a fully automatic mode, Action Program, not the best mode for this type of photograph and offering you little or no control over your depth of field.

The camera in this mode will try to use a fast shutter speed to freeze the action and avoid the subject being blurred.

The settings the camera selected were as follows:-

Shutter Speed 1/1000s (fast)

Aperture F4.5 (wide)

ISO 3200 (high)

If you had selected Aperture Priority mode then you could control the Aperture and ISO

Speed 1/125

Aperture F11

ISO 3200

Would have let in the same amount of light and increased the depth of field. But, ISO 3200 is high and grainy.

Why did I choose 1/125, the focal length of the telephoto lens you used was set at 84mm and shutter speed should never be a value below your focal length. Unless you have some form of image stabalization, which allows slower shutter speeds,with IS you could probably get away with 1/30s

The lens you used is a 55-250mm, another thing that affects depth of field is focal length, the longer the focal length the narrower the depth of field. So at 55mm the depth of field is wide (more of the picture in focus) and at 250mm the depth of field is narrow (less of the picture in focus).

To optimise the picture more, you could have used the wide end of the lens, this would have allowed a slower shutter speed, 1/60s.

We now have the possibility of the following settings.

Focal Length 55mm

Speed 1/60th

Aperture F8

ISO 800

With IS the following could be possible.

Speed 1/15s

Aperture F8

ISO 200

These settings should give you a reasonable quality (not grainy) image, with a wide depth of field.

Finally with your camera you can program the Set button on the back to be a Depth of Field preview button, this shuts the aperture down to the one that will be used when the shot is taken, when looking through the view finder you will see how much of the picture is in focus when you press the button. Though with narrow apertures sometimes its difficult to view as the light coming in the camera is decreased by so much.

Depth of Field and Hyperfocal Distance we'll leave until the next lesson.

Visit my photography site www.padge.smugmug.com

Radio 5 Live: Saturday 14 April 2007

Dave Whelan "In Wigan rugby will always be king"

 

This country's wealth was created by men in overalls, it was destroyed by men in suits.

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