/p/ - Photography » Thread #294088

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Anonymous Sat 15 Nov 2008 07:52:00 No.294088 View View Reply Original Report

Quoted By:

I've been digging around in my 450D and 430EX manual trying to figure out something. Whenever I hold down the DOF preview button on the camera the 430EX strobes the flash continuosly. My question is why? What is it for? It is strobing because in flash mode it needs the light in order to show the DOF? I am guessing though.

11Equipment MakeCanonCamera ModelCanon EOS 450DMaximum Lens Aperturef/5.7111Horizontal Resolution300 dpiVertical Resolution300 dpiImage Created2008:11:09 17:20:03Exposure Time1/25 secF-Numberf/5.6Exposure ProgramLandscape ModeISO Speed Rating800Lens Aperturef/5.6Exposure Bias0 EVMetering ModePatternFlashNo FlashFocal Length55.00 mmRenderingNormalExposure ModeAutoWhite BalanceAutoScene Capture TypeStandard1

Vincent !!8LCSE0Zp1mL

Vincent !!8LCSE0Zp1mL Sat 15 Nov 2008 07:55:00 No.294089 Report

Quoted By:

its called a modeling light, so you can visualize the effect your flash will have upon the scene

Anonymous

Anonymous Sat 15 Nov 2008 07:59:00 No.294091 Report

Quoted By: >>294119 >>294121

aka completely useless or fun to blind people

Anonymous

Anonymous Sat 15 Nov 2008 10:13:00 No.294119 Report

Quoted By:

>>294091
1:1 and max zoom in a dark room, directly in someone's face, is amazing

Anonymous

Anonymous Sat 15 Nov 2008 10:34:00 No.294121 Report

Quoted By:

>>294091

Agreed, it's fun watching people blink a thousand times and tell you they see a box that changes color over time.

Anonymous

View Same Google ImgOps iqdb SauceNAO unknown.jpg, 0B, 0x0

Anonymous Sat 15 Nov 2008 10:54:00 No.294129 Report

Quoted By: >>294142

>>2941191:1 and max zoom in a dark room, directly in someone's face, is amazing

not as amazing as shooting it in your mouth and take a picture of it with a D3

11Equipment MakeNIKON CORPORATIONCamera ModelNIKON D3Camera SoftwareAdobe Photoshop CS3 WindowsPhotographerKristofer EzergailisMaximum Lens Aperturef/2.8Sensing MethodOne-Chip Color AreaColor Filter Array Pattern4972Focal Length (35mm Equiv)70 mm111Image OrientationTop, Left-HandHorizontal Resolution240 dpiVertical Resolution240 dpiImage Created2008:06:12 21:58:29Exposure Time1 secF-Numberf/2.8Exposure ProgramShutter PriorityISO Speed Rating1000Lens Aperturef/2.8Exposure Bias0 EVMetering ModeCenter Weighted AverageLight SourceUnknownFlashNo FlashFocal Length70.00 mmColor Space InformationUncalibratedImage Width748Image Height902RenderingNormalExposure ModeAutoWhite BalanceAutoScene Capture TypeStandardGain ControlHigh Gain UpContrastNormalSaturationNormalSharpnessNormalSubject Distance RangeUnknown1

Anonymous

Anonymous Sat 15 Nov 2008 11:07:00 No.294142 Report

Quoted By: >>294157

>>294129
Image Created 2008:06:12 21:58:29

repost shit

Anonymous

Anonymous Sat 15 Nov 2008 11:51:00 No.294157 Report

Quoted By:

>>294142
yeah he's reposting it, but its not his photo, its mine.

thanks Anonymous i saw that and had a bit of a chuckle.

Jacob

DOF preview button

Jacob Sat 15 Nov 2008 12:35:00 No.294163 Report

Quoted By:

Your flash does that to give an accurate depth-of-field preview. When you use the DOF preview button, it also simulates the exposure. While your flash is on, it lights it so you can see the approximate exposure.

Anonymous

Anonymous Sat 15 Nov 2008 12:36:00 No.294164 Report

Quoted By:

My D80/SB-800 does it too (optionally). Its a modeling light. You can see where the shadows fall just like a real studio light.

Anonyfag of Borneo !bHymOqU5YY

Anonyfag of Borneo !bHymOqU5YY Sat 15 Nov 2008 14:49:00 No.294201 Report

Quoted By:

OP, you can disable it if you want to. It's in the flash's Custom Function.

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