Jake Mongey
Well-known
Hi,
Usually for my flash I use my metz ct1 at 1/60th of a second and get perfect exposures on auto. However tomorrow for london fashion week I am shooting my hasselblad and want to uitilise the leaf shutter and shoot at 1/250th of a second.
How would I get the flash to meter for this? Should I start off by setting up the camera with 1/60th f/8 and the flash metering for F8 and then use the EV coupling to go to 1/250 f/4? If not how should i compensate for this.
I do have the guide number calculations sharpied on the back of the flash but would prefer to work with the autoflash.
Thanks in advance
Usually for my flash I use my metz ct1 at 1/60th of a second and get perfect exposures on auto. However tomorrow for london fashion week I am shooting my hasselblad and want to uitilise the leaf shutter and shoot at 1/250th of a second.
How would I get the flash to meter for this? Should I start off by setting up the camera with 1/60th f/8 and the flash metering for F8 and then use the EV coupling to go to 1/250 f/4? If not how should i compensate for this.
I do have the guide number calculations sharpied on the back of the flash but would prefer to work with the autoflash.
Thanks in advance
x-ray
Veteran
What kind of meter are you using and do you want the flash balanced with the ambient light or blow out the background or let it go dark? Is it inside or outside? I need to know more info.
Jake Mongey
Well-known
Im not metering, the flash has an automatic mode and a sensor facing the front. Outdoors I turn the meter down a stop for fill and indoors I use it bounced off a ceiling where the sensor measures the light in front of me and compensates for the bounce.
If my aperture is f/8 I use 1/60th of a second and set the flash to f/8 and it will expose for the ISO set on the flash and adjust the output to match the aperture. What I am asking is can I use the flash set to f/8 in that example scenario but change the settings to 1/125 f/8 and still gain a good exposure
x-ray
Veteran
With strobe the exposure is determine by the aperture. You'll be fine unless you bring your shutter speed down to a point that the ambient light exposure is within roughly a stop of your flash intensity. If this is inside you'll wind up with dark backgrounds if you use high shutter speeds.
If your flash exposure is f8 and your shooting in a typical interior with say 100 ISO film then you can shoot any shutter speed from 1/30 roughly (depends on how bright the interior is) to 1/500 and see little to no difference in exposure (provided you don't change the aperture).
When shooting commercial jobs where the interior is important and people as well I set my strobes and lens for the correct exposure and drag the shutter to balance the interior lights with the flash.
Hope that answers.
Edit
Make certain your lens sync is set to X. I've seen people try to use strobes with M sync and on the 500c seen them plug the sync cord into the sync connector for the rear shutter. Both result in disaster.
Best of luck.
If your flash exposure is f8 and your shooting in a typical interior with say 100 ISO film then you can shoot any shutter speed from 1/30 roughly (depends on how bright the interior is) to 1/500 and see little to no difference in exposure (provided you don't change the aperture).
When shooting commercial jobs where the interior is important and people as well I set my strobes and lens for the correct exposure and drag the shutter to balance the interior lights with the flash.
Hope that answers.
Edit
Make certain your lens sync is set to X. I've seen people try to use strobes with M sync and on the 500c seen them plug the sync cord into the sync connector for the rear shutter. Both result in disaster.
Best of luck.
Bill Clark
Veteran
The shutter speed only changes ambient light not flash. Aperture changes amount of flash exposure and ambient light.
Reason for that is strobes flash cycle is much shorter than most any shutter speed.
Practice with a digital camera you can operate in manual mode as this will give you instant feedback. Shutter speed will be limited if it is focal plane.
Info to help:
https://www.bhphotovideo.com/explora/content/using-your-flash-manual-mode
http://www.shawacademy.com/blog/how-to-use-manual-flash-mode/
With my Canon digital SLR cameras, I could run the camera in manual mode and the computer on the camera would have the flash put out appropriate amount of light to get correct exposure. This came in handy like at receptions.
Reason for that is strobes flash cycle is much shorter than most any shutter speed.
Practice with a digital camera you can operate in manual mode as this will give you instant feedback. Shutter speed will be limited if it is focal plane.
Info to help:
https://www.bhphotovideo.com/explora/content/using-your-flash-manual-mode
http://www.shawacademy.com/blog/how-to-use-manual-flash-mode/
With my Canon digital SLR cameras, I could run the camera in manual mode and the computer on the camera would have the flash put out appropriate amount of light to get correct exposure. This came in handy like at receptions.