You can fire thge SB-800 from the D7100 via commander mode optically so you get a pre-flash from the pop-up that doesn't contribute to the exposure if you don't want it too. Why do you not want the camera flash to go off for this?
The commanding flash from your camera will have no effect on the silhouettes if you set it to commander only as described on page 247 of the manual with the pop-up set to "- -". Then you have to set the SB-800 to be a remote and Group A. Use the camera (page 247) to control group A. Even with the flash behind the subject it can still work in many situations. You have to download the SB-800 manual to see how to set it up as ma wireless remote
Again, the on camera flash fires before the exposure to tell the remote when to fire. If you have the on camera flash set for "- -" it will not be seen in your picture. The is no way to signal the SB-800 to fire off camera with out the pre-flash instruction from the cameras flash unless you use radio triggers.
oops...D7000 page 225 in manual.bluesky22 wrote:
Completely new to off camera flash and got a pocket wizard as a gift. With a D7000, SB800 and 1 pocket wizard...am I am to trigger the SB800 off camera (or do I need a 2nd pocket wizard). And if so...any recommendations on settings for everything? I tried reading manuals without success
Yes, there is a pre-flash, but the on-camera flash also sends a communication flash during the exposure, even when set to "--". One can clearly see this for oneself by shooting into a mirror in commander mode. This low power flash is normally of little or no consequence, unless there are reflective objects in the scene that is to be photographed.
Yes it will contribute in commander mode but not enough to really change the lighting of the subject in a noticeable way vs the other scene lighting...though you can see it (as you point out) reflected at times. With reflections though, way way easy to clone out so again. Very rarley an issue.
Yes, I keep the Nikon SG-31R shield handy in those cases were the commander may cause folks to blink or reflections can be hard to control....some DIY options as well. That lets me use both of my SB-600's and SB-700 in remote settings.There is a Nikon product designed to prevent this unwanted flash from contributing to the exposure, the Nikon SG-31R, which mounts in front of the on-camera flash, and filters out the visible light:
Yes you can see the pop-up flashing, as it should, but is that flash affecting your final picture in any way. (see my examples above)
More than welcome. Takes time to get a handle on all the "stuff"
My point was that it is somewhat misleading to speak only of pre-flashes, when there is clearly a communication flash during the exposure. As we agree, though, it's normally of little significance, but it does exist, and can conceivably be an issue in certain situations.Mako2011 wrote:
Yes it will contribute in commander mode but not enough to really change the lighting of the subject in a noticeable way vs the other scene lighting...though you can see it (as you point out) reflected at times. With reflections though, way way easy to clone out so again. Very rarley an issue.
Here is an example shot in a pitch black room.
Pop up down
Same room with POP-up acting as commander only
As you can see...the contribution will not be noticed over the remotes in the vast majority of situations. The contribution is also less than setting the pop-up to 1/128 manual power. One exception will be in the case of certain close up macro work where the subject is macro close. I use a Nikon SG-31R to block in those cases so only the remotes are contributing. I find the IR shield really doesn't seem to limit command range either.
Yes, I keep the Nikon SG-31R shield handy in those cases were the commander may cause folks to blink or reflections can be hard to control....some DIY options as well. That lets me use both of my SB-600's and SB-700 in remote settings.There is a Nikon product designed to prevent this unwanted flash from contributing to the exposure, the Nikon SG-31R, which mounts in front of the on-camera flash, and filters out the visible light:
Not sure it's really during exposure (semantics) as you can play with it in rear curtain sync and not see a reflection at times. So close to firing at exposure though that it can be a player and, as you point out, needs to be considered. The communication flashes really are Pre-flashes because they have to occur before the actual flash if the Pop-up is set to contribute for exposure....I thinkPatco wrote:
My point was that it is somewhat misleading to speak only of pre-flashes, when there is clearly a communication flash during the exposure.Mako2011 wrote:
Yes it will contribute in commander mode but not enough to really change the lighting of the subject in a noticeable way vs the other scene lighting...though you can see it (as you point out) reflected at times. With reflections though, way way easy to clone out so again. Very rarley an issue.
Here is an example shot in a pitch black room.
Pop up down
Same room with POP-up acting as commander only
As you can see...the contribution will not be noticed over the remotes in the vast majority of situations. The contribution is also less than setting the pop-up to 1/128 manual power. One exception will be in the case of certain close up macro work where the subject is macro close. I use a Nikon SG-31R to block in those cases so only the remotes are contributing. I find the IR shield really doesn't seem to limit command range either.
Yes, I keep the Nikon SG-31R shield handy in those cases were the commander may cause folks to blink or reflections can be hard to control....some DIY options as well. That lets me use both of my SB-600's and SB-700 in remote settings.There is a Nikon product designed to prevent this unwanted flash from contributing to the exposure, the Nikon SG-31R, which mounts in front of the on-camera flash, and filters out the visible light:
Totally agree...and completely/easily controllable as to have no affect on the actual image. That's why I'm trying to figure out why the OP is so against using it. Knowing that, we can give him the best answer. May be a real reason I hadn't thought of that might be a real issue that can't be mitigated. I don't mind learning a new thing and look forward to it.
