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Jinbei HD 610/Speedlite - calculating correct exposure
  
 
pinn
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p.1 #1 · p.1 #1 · Jinbei HD 610/Speedlite - calculating correct exposure


i have a studio set up with a Jinbei HD610 and Canon Speedlite (using Jinbei receiver TTL) - am using Canon IDX II ISO 100 f 8 1/200 sec - i seem to spend too long taking test shots to get the correct exposure...just wondering if there is an easier way please?
thanks for any help



Oct 08, 2017 at 12:24 PM
story_teller
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p.1 #2 · p.1 #2 · Jinbei HD 610/Speedlite - calculating correct exposure


A lot more info would be helpful. Questions - daytime, night time, indoor, outdoors, how far away is the subject, why f8, why ISO 100, why 1/200 sec? What is the transmitter? How is the Canon speedlight used? Trying to use both at the same time? etc. How are you doing it now?


Oct 10, 2017 at 02:40 AM
pinn
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p.1 #3 · p.1 #3 · Jinbei HD 610/Speedlite - calculating correct exposure


indoor studio -shooting dog portriats F8 to get all dogs face in focus - HD610 Jinbei strobe using Jinbei transmitter on the 1DX II and Jinbei receiver on the Canon speedlite used as rim light - main strobe in front of deg angled in - about 1 m from dog - dog far enough away from back drop so no definition of backdrop.....does that help? thanks


Oct 10, 2017 at 04:38 AM
 

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Two23
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p.1 #4 · p.1 #4 · Jinbei HD 610/Speedlite - calculating correct exposure


Get yourself a flash meter. Plenty of them on ebay--I suggest a Minolta IVf Autometer. Problem solved.


Kent in SD



Oct 10, 2017 at 12:22 PM
story_teller
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p.1 #5 · p.1 #5 · Jinbei HD 610/Speedlite - calculating correct exposure


The info helps a lot. In a studio environment where the lighting is more constant you can set it up once and then turn everything to manual.

Get the ambient lighting in the studio to be a bit darker so your studio strobes provide most of the light on the subject. Next, set your shutter speed (without strobes) to control the ambient light to where you want it as background. Don't change it! The shutter speed controls the ambient, not flash. Flash is controlled with aperture.

Put a test object or subject at the same distance from your light as your dogs will be. With your camera in manual at f8 (keeping the shutter speed the same), bring up the flash power until you get an exposure you like. Take note of the flash power setting at f8 and keep it there. You now have your main light, shutter speed, aperture and ISO set for your studio. You will probably want to adjust your rim light a bit, but that can be set up in manual as well. Some dogs with darker fur may need a bit more of flash, but for the most part, you should be able to use the same settings over and over.

When you're on location (fixed location) you can try to do the following -
1. Control your ambient light with shutter speed. If it's low light or night, you might have to bump up your ISO to keep a reasonable shutter speed for the ambient.
2. Take a TTL photo at your ambient shutter speed and aperture at f8 (if that's what you want). See what power your flash used for that aperture. Set the flash to manual and you're good to go for that scene. If you move to a different location, repeat the process.

Hope that helps.



Oct 10, 2017 at 04:29 PM
pinn
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p.1 #6 · p.1 #6 · Jinbei HD 610/Speedlite - calculating correct exposure


thanks Story Teller will give it a go



Oct 22, 2017 at 11:36 AM







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