Using ND Filters with Strobes: Ep 212: Digital Photography 1 on 1: Adorama Photography TV

AdoramaTV Presents Digital Photography One on One. In this episode Mark Wallace shows us how to use ND filters in a studio environment. Mark will demonstrate how you can shoot with wide open apertures even with powerful studio strobes. Then Mark will show us how we can use a similar effect outside and use a studio strobe to overpower the sun.

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Send your questions to: AskMark@Adorama.com

Category:

Education

Tags:

• studio
• canon
• model
• camera
• tutorial
• adorama
• demonstration
• digital
• mark wallace
• photography
• metering
• Adorama TV
• softbox
• lighting
• youtube
• focus
• tips
• digital photography
• nikon
• profoto
• strobe
• snapfactory studios
• snapfactory

[hibbledor]

Hey Mark! A bunch of us are stuck over on episode 75 looking for episodes 76-200 - are they no longer available?

[tamim4ever]

"9 stops less, and 9 stops down from f/64 is 2.8"

can you please explain further ?! is there a formula for that ?!

[DrLB85]

I'm curious, do you see anything in the viewfinder with the that 9 stop ND filter ?

[RufusTheRuthless]

@tamim4ever The stops go like this: 1.4 / 1.8 / 2.8 / 3.2 / 4 / 5.6 / 8 / 11 / 16 / 22 / 32. Notice how f 5.6 is 2 x 2.8, f8 is 2 x f4. Half your f stop and that tells you what 2 f stops brighter is. You used to have to click these stops on your lenses in the film days.

[benders74]

That's crazy man...thanks

[essellar]

@tamim4ever A "stop" is a doubling or a halving of the light entering the camera. The f-number is the ratio of the lens's focal length to the diameter of the opening (aperture). The amount of light depends on the area of the opening, and the formula for the area of a circle is πr²; to double the area, you need to increase the diameter by a factor of √2 (or about 1.4). So the f-numbers going down would be 64→45→32→22→16→11→8→5.6→4→2.8. (The numbers are rounded values.)

[tamim4ever]

@thiemogamma thanks .. :)

[thiemogamma]

@tamim4ever every stop down means a doubling of your shutter speed. For nine stops, you keep "doubling" nine times =)

[supercooled]

This girl needs  a good shag.

[tomwojmusic]

@tomwojmusic hmm actually thinking about it, is it because that's the speed at which the flash goes off? So any higher or lower shutter speed would make the flash and camera not go off at the same time?

[tomwojmusic]

I'm new to photography so this might be a stupid question, but why can't you just up the shutter speed? When mark was outside he stated that his shutter speed was 160 odd to sync with the flash, why not just forget the nd filter and max the shutter speed?

[4EVERMYSERENITY]

so this can't be done with sb-900 flashes?