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 AnAppleSnail
   
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
 |  |  |  | Entry-level Canons and slave flashes
< on 10/13/2011 12:02 AM >
|  | | | I got a pair of slave flashes for $18. "But remember, you can't really use these with that Rebel XS of yours because it flashes twice."
Hah, Mr. Camera Store Guy Actually it was a woman but I don't want to confuse the issue here
A slave flash is a small box that fires its camera flash when it sees a camera flash. Under most situations, an entry-level Canon will fire a flash before the shutter opens (To see how bright the real flash should be), and then open the shutter, and finally fire its flash just before closing the shutter. This pattern lets the camera:
1. Figure out how bright to make the real flash
2. Get the shutter completely open
3. Get all the motion blurs that will happen
4. Use the flash to put a strong image at the front of those blurs (So that the blurs don't reach ahead of objects)
5. Require you to buy newer external flashes instead of the ones on 80% off clearance.
So for those of you with canon critters, how do you get away with this?
The goal is to make the camera flash only set off the slave flashes while the shutter is open. You can either:
1. Trigger the slave flash in your hand. This preserves flash metering on the camera
2. Cover up the onboard flash for the first flash. What a drag!
3. Press that little * button (Near the top right on my camera). This, oddly, locks Flash Evaluation off.
As a side note (I say with spots in my eyes) pressing the FE button makes the camera pop an evaluation (dimmer) flash.
Anyway, I'll see if I can play with this as things get really busy for me. Check local camera stores for cheap slave flashes and see what you can do.
Achievement Unlocked
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Crypton
  
Gender: Male
| | Re: Entry-level Canons and slave flashes
<Reply # 1 on 10/18/2011 6:29 PM >
| | | | If you have EE skills, you can wire up a radio relay trigger from the hot shoe to each flash piece. It could work, although don't know if it will have precise timing.
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don_corleyone
 
Location: F/RoX
Gender: Male
I have abandonment issues
| | Re: Entry-level Canons and slave flashes
<Reply # 2 on 10/18/2011 7:08 PM >
| | | | get a cheap speedlight instead of using the on-board flash,
or
wire the strobes directly (you'll need a hot shoe adapter, since your rebel doesn't have a wired output),
or
set up for a longer exposure and fire the strobes by hand,
or
wait wait wait...... if you're using manual or program modes, the camera shouldn't be flash evaluating, should it?????
leave the gun. take the cannoli.
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Crypton
Gender: Male
| | Re: Entry-level Canons and slave flashes
<Reply # 3 on 10/18/2011 8:09 PM >
| | | | | wait wait wait...... if you're using manual or program modes, the camera shouldn't be flash evaluating, should it????? |
There's only one way to find out!
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 4 on 10/18/2011 11:37 PM >
| | | | Posted by don_corleyone
wait wait wait...... if you're using manual or program modes, the camera shouldn't be flash evaluating, should it?????
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Smartass. Entry-level camera, sadly won't let you manually control flash power.
Achievement Unlocked
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don_corleyone
Location: F/RoX
Gender: Male
I have abandonment issues
| | Re: Entry-level Canons and slave flashes
<Reply # 5 on 10/19/2011 12:36 AM >
| | | | Posted by AnAppleSnail
Smartass. Entry-level camera, sadly won't let you manually control flash power.
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no, i mean shooting mode, nitwit!
if you're in a program mode (P, Tv, Av, or M), the flash won't pop if you have it down when you focus.
leave the gun. take the cannoli.
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 6 on 10/20/2011 1:58 AM >
| | | | Posted by don_corleyone
no, i mean shooting mode, nitwit!
if you're in a program mode (P, Tv, Av, or M), the flash won't pop if you have it down when you focus.
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News to me. Rebel XS, the flash pops just before the shutter opens to evaluate the flash needs unless you hit the * button to do it early. Every shot.
Achievement Unlocked
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\/adder
 
Location: DunkarooLand
Gender: Male
I'm the worst of the best but I'm in this race.
| | | Re: Entry-level Canons and slave flashes
<Reply # 7 on 10/20/2011 2:30 AM >
| | | | Check into custom functions, something's enabled that shouldn't be. None of my Canon dSLR's do this or my SLR.
"No risk, no reward, no fun."
"Go all the way or walk away"
escensi omnis... |
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 8 on 10/20/2011 10:06 PM >
| | | | Posted by TheVicariousVadder
Check into custom functions, something's enabled that shouldn't be. None of my Canon dSLR's do this or my SLR.
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The canon xs is less leet than xti or xsi. The "i" means you get remote trigger and other functionality.
Achievement Unlocked
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don_corleyone
Location: F/RoX
Gender: Male
I have abandonment issues
| | Re: Entry-level Canons and slave flashes
<Reply # 9 on 10/20/2011 10:12 PM >
| | | | what are you shooting? like i said, you still have a couple options:
buy a cheap speedlight and instead of pointing it at the subject, point it at one of the slaves,
or
keep the built-in flash down on the camera, set it on a tripod with a 5 or 10 second exposure, and after the shutter is open, manually trigger the first slave.
EDIT:
or get a hot-shoe / PC cord adapter like this one for $11:
http://flashzebra....s-shoes/0064.shtml
[last edit 10/20/2011 10:16 PM by don_corleyone - edited 2 times]
leave the gun. take the cannoli.
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 10 on 10/20/2011 11:15 PM >
| | | | You're repeating my list things I said in the first post, although I don't consider throwing money at a speedlight to be as fun as making the modern shitty auto flash work with old slave flashes.
Achievement Unlocked
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don_corleyone
Location: F/RoX
Gender: Male
I have abandonment issues
| | Re: Entry-level Canons and slave flashes
<Reply # 11 on 10/20/2011 11:32 PM >
| | | | FINE THEN!
leave the gun. take the cannoli.
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 12 on 10/24/2011 12:07 AM >
| | | | Posted by don_corleyone
FINE THEN!
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SEE IF I CARE. THAT YOUR MOM'S A WHORE.
Achievement Unlocked
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Jonno23
Location: Phoenix, Az, Sector zz9 Plural Z Alpha
Gender: Male
This space for rent
| | Re: Entry-level Canons and slave flashes
<Reply # 13 on 1/22/2012 7:52 PM >
| | | | Did you ever figure this out? I got a set of triggers for x-mas (2 receivers, 1 trigger) and it works fine as a shutter trigger with my XS, but when I reverse it, it wont fire the remote flash. Is there any way to work around this? I know it is sending the signal to the flash, the indicator light is flashing. and they work fine in reverse as I said. I really want these to work. Do I have to have a flash on the camera to trigger the remote flash? I thought that was what these triggers were supposed to do so I didn't have to have the light from the flash interfere with the picture.
Help.
Blah Blah Blah. Shut up and open the damn door.
"It's ok Officer, I watch a lot of cop shows on tv, so i am practically one of you guys." - sadly, that didn't work.
http://www.flickr.com/photos/jonno23/ All my photos suck. |
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 14 on 1/22/2012 8:01 PM >
| | | | Posted by Jonno23
Did you ever figure this out? I got a set of triggers for x-mas (2 receivers, 1 trigger) and it works fine as a shutter trigger with my XS, but when I reverse it, it wont fire the remote flash. Is there any way to work around this? I know it is sending the signal to the flash, the indicator light is flashing. and they work fine in reverse as I said. I really want these to work. Do I have to have a flash on the camera to trigger the remote flash? I thought that was what these triggers were supposed to do so I didn't have to have the light from the flash interfere with the picture.
Help.
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The rebel XS I have will preflash to meter, start exposure, and fire its flash at the end of the exposure (So that motion blurs are 'behind' the flash-lit subject).
The closest I have to 'figuring it out' is to use the Meter-the-Damn-Flash button (* on my Rebel XS). This will take care of the camera preflash. The strobes will fire here. I wait so the flashes recharge. Then I click the shutter, and the camera takes the exposure and fires its flash at the end of exposure. This will trigger the slave flashes correctly. Does that answer your question?
Achievement Unlocked
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Jonno23
Location: Phoenix, Az, Sector zz9 Plural Z Alpha
Gender: Male
This space for rent
| | Re: Entry-level Canons and slave flashes
<Reply # 15 on 2/3/2012 4:41 PM >
| | | | So then I have to also have a flash on the camera right? I was trying to avoid the purchase of a second flash unit to trigger the remote flash. Funds are tight, and can't really afford to purchase a second flash. I thought these remote triggers would get rid of that necessity. Damn.
but they work amazingly well as a remote trigger for the long exposure, night stuff and selfies, so they stay in my kit.
Blah Blah Blah. Shut up and open the damn door.
"It's ok Officer, I watch a lot of cop shows on tv, so i am practically one of you guys." - sadly, that didn't work.
http://www.flickr.com/photos/jonno23/ All my photos suck. |
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 16 on 2/4/2012 11:39 AM >
| | | | I use the inbuilt flash to trigger the slaves.
Achievement Unlocked
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Jonno23
Location: Phoenix, Az, Sector zz9 Plural Z Alpha
Gender: Male
This space for rent
| | Re: Entry-level Canons and slave flashes
<Reply # 17 on 2/6/2012 1:18 AM >
| | | | Posted by AnAppleSnail
I use the inbuilt flash to trigger the slaves.
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Damn. Mine wont open if my trigger is on. Hmmmm. Need to keep looking for a solution I guess.
Blah Blah Blah. Shut up and open the damn door.
"It's ok Officer, I watch a lot of cop shows on tv, so i am practically one of you guys." - sadly, that didn't work.
http://www.flickr.com/photos/jonno23/ All my photos suck. |
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AnAppleSnail
Location: Charlotte, NC
Gender: Male
ALL the flashlights!
| | | | Re: Entry-level Canons and slave flashes
<Reply # 18 on 2/6/2012 1:23 AM >
| | | | Posted by Jonno23
Damn. Mine wont open if my trigger is on. Hmmmm. Need to keep looking for a solution I guess.
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My canon XS' trigger looks just like a headset microphone jack, without any controls except half-click and full-click. Is yours more complex?
Achievement Unlocked
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Jonno23
Location: Phoenix, Az, Sector zz9 Plural Z Alpha
Gender: Male
This space for rent
| | Re: Entry-level Canons and slave flashes
<Reply # 19 on 2/6/2012 1:27 AM >
| | | | Yeah. It's this set up right here.
http://www.amazon....00_s00_i00_details
I also have the cable, but this one will let me get far away from the camera, and I thought, when reversed, it would fire a flash set up away from the camera.
[last edit 2/6/2012 1:28 AM by Jonno23 - edited 1 times]
Blah Blah Blah. Shut up and open the damn door.
"It's ok Officer, I watch a lot of cop shows on tv, so i am practically one of you guys." - sadly, that didn't work.
http://www.flickr.com/photos/jonno23/ All my photos suck. |
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