Thread: Flash advice
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Old 27th June 2019
DerekW DerekW is offline
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Re: Flash advice

continuing English Bob's advice - the rest of the notes I copied from his posts.

Nightime Outdoor flash with brightly lit background.
Flash Outdoors at Night with Bright Background — FL-50/36
This setup is intended to be used for those situations where you are outdoors at night photographing a nearby primary subject but want to include a brightly lit background (e.g. city skyline, lighted city street, brightly lit house) that is too large or too far away to be illuminated by the flash unit. This setup can also be used for large indoor venues such as auditoriums but does require that no movement be going on in the background.
a. When you do the custom setup for the FL-50 (instructions in the FL-50 manual) make sure that the following settings are:
ILL = A
CLP = ON
Zoom= 4-3
Light intensity adjustment=ON
b. Camera setup (per instructions in the English language E-1 PDF manual) should be: Set flash mode to Slow 2nd Curtain (P.103)
Set metering to ESP mode (P.68)
Set exposure mode to Aperture (P.59)
Set White Balance to Auto (P.87-88)
Set ISO to Auto (P.83)
No exposure compensation should be set on the camera (P.65)
c. Mount FL-50 on camera hot shoe. d. Mount camera on tripod.
e. Turn on camera, then turn on flash. Set flash to TTL Auto flash control mode by pressing the Mode button on the flash until that appears in the display. No exposure compensation should be set on the flash.
f. Adjust your aperture by turning the camera dial (P. 59 again) to accomplish two things; select desired depth of field and secondly, set the operating distance of the flash. This is shown on the bottom line of the flash LCD display. Changing the aperture will change this operating distance and any subject within the near/far distances shown will be exposed properly. The primary subject distance, not the background, should be the primary factor in selecting the aperture setting to control the operating distance of the flash.
g. The camera will select a proper shutter speed and the shutter speed will be slow enough to allow for a time exposure of your background which is why you need to have the camera tripod mounted. Check what shutter speed the camera proposes to use (half depress the shutter button) and, if the speed is slow enough on your camera to require that you set Noise Reduction to ON, be sure to do so.
h. Position your camera so the subject is in the center 1/3 of the viewfinder to ensure a proper
flash measurement and exposure. Caution your subject that they will see two flashes separated by as much as a minute and that they should not move until after the second flash. Press the shutter button. The flash unit now emits the TTL preflash which allows it to compute the necessary flash power to use. After the preflash, the camera will take a time exposure which will properly expose the lighted background which you wanted to include in your night image. After the time exposure, the flash will flash the second time to illuminate your primary subject to include it in the image and then the camera shutter will close and your subject can be allowed to move.
i. After looking at some of your images you may notice in the EXIF data that the ISO used for the exposure was not 100. That is because when the ISO is set to Auto and the camera is using a flash it will change the ISO to anywhere between 100 and 400 in increments of 20 to help obtain a good exposure. There is no need to recheck or reset the ISO after flash exposures. It will still be set at Auto. The only way you can tell that the camera used other than an ISO of 100 for any given exposure is to check the image EXIF data.
j. The FL-50 provides excellent results with direct flash without any diffuser except for close- ups of people with short focal length lenses. It is possible to use a Stofen or other diffuser on your flash head with the above setup without having to alter any camera or flash settings (the flash compensates automatically) in those situations, but a third party diffuser should not be needed for routine use. You can also adjust the exposure compensation on the flash. CAUTION:
1. keep an eye on the effective flash distances shown on the bottom line of the flash LCD display when using direct (versus bounce) flash. To avoid subject under/over exposure your subject must be between those limits. You can adjust those limits to be closer to you or farther away by adjusting the aperture the camera uses.
2. The flash will illuminate wide angle shots quite well, but if you are shooting with a lens that allows focal lengths shorter than 12mm the flash will signal a need to apply the diffuser lens by a blinking warning in the top left corner of the flash LCD display when you zoom to wider than 12mm focal length. Keep an eye out for this, otherwise the flash lighting on the right and left sides of the image will fall off.
If your subject is particularly reflective or dull, you may care to adjust some exposure compensation (I rarely do). If so, do it on the flash with the large dial near the bottom back of the flash.
__________________
Good shooting,
English Bob
Nightime Outdoor flash without brightly lit background.
Outdoors at Night with No Illuminated Background — FL-50/36
a. When you do the custom setup for the FL-50 (instructions in the FL-50 manual) make sure
that the following settings are: ILL = A
CLP = ON
Zoom= 4-3
Light intensity adjustment=ON
b. Camera setup (per instructions in the English language E-1 PDF manual) should be: Set flash mode to auto flash (P.103)
Set metering to ESP mode (P.68)
Set exposure mode to Aperture (P.59)
Set White Balance to Auto (P.87-88)
Set ISO to Auto (P.83)
No exposure compensation should be set on the camera (P.65)
c. Mount FL-50 on camera hot shoe.
d. Turn on camera, then turn on flash. If the subject distance is 50 feet or less, set flash to TTL Auto flash control mode by pressing the Mode button on the flash until that appears in the flash's LCD display. If the subject distance is over 50 feet, set flash to Auto flash control mode by pressing the Mode button on the flash until that appears in the display.
e. Adjust your aperture by turning the camera dial (P. 59 again) to accomplish two things; select desired depth of field and secondly, set the operating distance of the flash. This is shown on the bottom line of the flash LCD display. Changing the aperture will change this operating distance and any subject within the near/far distances shown will be exposed properly. Try to keep the subject(s) within the same plane (equidistant from the camera) and within the center 1/3 of the viewfinder. Multiple subjects at different distances from the camera will be illuminated unequally and the general appearance of the image will be unsatisfactory.
f. The camera will select a proper shutter speed. If you are using a zoom lens note that when you zoom the camera changes the shutter speed. The camera does that continually to give you a slow shutter speed that will include as much of the ambient lit background as possible to meld in with the flash exposed foreground and at the same time the shutter speed the camera selects will be the lowest speed that you can safely hand hold that focal length lens on the E-1. If you are using normal to wide angle focal lengths the shutter speeds will be fairly slow and you will get very good ambient illumination of the background as well as a properly exposed flash foreground. Helps avoid those pictures of properly exposed subjects that look like they are standing in a black cave.
g. After looking at some of your images you may notice in the EXIF data that the ISO used for the exposure was not 100. That is because when the ISO is set to Auto and the camera is using a flash it will change the ISO to anywhere between 100 and 400 in increments of 20 to help obtain a good exposure. There is no need to recheck or reset the ISO after flash exposures. It will still be set at Auto. The only way you can tell that the camera used other than an ISO of 100 for any given exposure is to check the image EXIF data.
h. The FL-50 provides excellent results with direct flash without any diffuser except for close-
ups of people with short focal length lenses. It is possible to use a Stofen or other diffuser on your flash head with the above setup without having to alter any camera or flash settings (the flash compensates automatically) in those situations, but a third party diffuser should not be needed for routine use. You can also adjust the exposure compensation on the flash. CAUTION:
1. keep an eye on the effective flash distances shown on the bottom line of the flash LCD display when using direct (versus bounce) flash. To avoid subject under/over exposure your subject must be between those limits. You can adjust those limits to be closer to you or farther away by adjusting the aperture the camera uses.
2. The flash will illuminate wide angle shots quite well, but if you are shooting with a lens that allows focal lengths shorter than 12mm the flash will signal a need to apply the diffuser lens by a blinking warning in the top left corner of the flash LCD display when you zoom to wider than 12mm focal length. Keep an eye out for this, otherwise the flash lighting on the right and left sides of the image will fall off.
If your subject is particularly reflective or dull, you may care to adjust some exposure compensation (I rarely do). If so, do it on the flash with the large dial near the bottom back of the flash. Don't do it by adjusting exposure compensation in the camera. Two reasons: the big dial on the rear of the flash is easier to get to and use than the camera controls and secondly once you take the flash off the camera and step outside you don't have to readjust the exposure compensation because you made it on the flash and not the camera.
__________________
Good shooting, English Bob
__________________
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