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I can confirm that, for the Samyang, this info is recorded. ---------- Post added 30-07-18 at 02:44 PM ---------- About using the camera in manual mode with a flash, I have my camera in M mode most of the time, so I can comment on how I solve some situations, but there are so many possible situations and combinations...
My setup is different if I work inside (low or no ambien light) or outside (lot of ambient light). When I'm inside: I work year from year on the same church so I know every wall, room or tile. I have a couple of external lights that give me my 'ambient light', as the real ambient light in my case is low and also no good quality (mix of light form windows and incandescent bulbs). So first I set the 'ambien light' for the most important area, with the help of my photometer. f4.5, 1/160 and ISO 320 are my usual settings inside, for the kids seated during the ceremony.
Also I have a PTTL flash mounted on camera with a small bouncer, if I need some fill light because a kid is in shadow or doesn't receive good light from my 'ambient flashes', then I set my flash on camera to ON, and control the flash compensation with the camera's EV dial. EV -0.7 is a common setting for me. In M mode, EV dial controls the TTL flash compensation, better and faster than changing FEC from the flash itself. Ambient light will not change by dialing the EV compensation, only main flash. If I have just my flash on camera, inside, I make the usual bouncing to a white wall, and it's done.
But I'm afraid the above is not similar to your case, usually you have no choice to put so many lights inside a churh. When I'm outside, I get my camera, a foldable lightstand with my AD200 and a small umbrella. Outside I usualy make posed portraits for kids and families, so I have a little time to make a setup, but I have to work fast, because there are more families waiting. I avoid harsh sun and look for a site with shadow and not too ugly background. I don't use HSS (maybe next year). I get my photometer and my remote flash control, set lowest ISO and take a metering, this is my base metering for ambient. Then I take a second measure adding the flash, correct flash power until the flash contribution is in the range 30%-50%, set my camera and then I take the shots. Usually my flash is set previously with a reasonable power setting so I need to make few corrections to get the setup done. I can make this setup really fast, but need a bit of time. If I have only my camera and a PTTL flash mounted on top, outside, and no time to posing, then I put lowest ISO, and change speed/aperture to get a correct exposure with reasonable amount of ambien light, then I underexpose a bit and, for the flash I dial EV -0,7 or so. My idea is to get good mix of ambient light and flash light, I keep shooting on the same area so the settings are valid. If light changes you will need to make corrections. When you are in M mode, the EV compensation changes the compensation for the flash (becomes FEC dial), this is for me a great trick that allows to change the flash power setting really fast. So, in short: I first set the camera for ambient and then dial EV for the flash until I see a 'reasonable' amount of flash light. Tv/Av for ambient corrections, PTTL flash will not change. In a situation outside with only a manual flash mounted on camera, I'm afraid I must memorize a flash power for a fixed ISO-distance-Av. For example, 1/8 power setting could be good for 1.5 metters, ISO 100 and f5.6, and this can be my starting point. You could play with the speed dial to control ambient, if needed. I never used the above in 'real' situations, only experimented at home, but for me it's not a bad idea, just keep the distance to your subject and you will have a more or less correct exposure.
Regards.
Last edited by morenjavi; 07-30-2018 at 11:53 AM.
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