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Old Dec 29, 2003, 7:14 PM   #1
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Default Newb Confused About Slave Flash for Pre-Flashing Optio 33WR

Okay, my new Pentax Optio 33WR is a great little camera but the flash is a bit weak. I don't need a powerful flash very often but would like to have a basic but decent & inexpensive slave flash for those rare times when I do need more than what the 33WR can provide. I've been researching this Forum and the more I read the more I'm confused! I thought the Vivitar DF200 might work well (and it still might) but it also seems rather large and heavy for use with a small & light digicam like the 33WR. Any suggestions from the experienced before my brain turns to mush and runs out my ears??? TIA!...
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Old Dec 29, 2003, 10:42 PM   #2
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May be this ?
http://www.steves-digicams.com/ms-1.html

But this flash work only if your cam does not preflash (or if you can disable the preflas mode)
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NOTE: Many digicam flash units put out two flash pulses, a pre-flash to set the white balance and then the main flash. If your camera is one of these then you can't use the MS-1,
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Old Dec 30, 2003, 7:26 AM   #3
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Thx, KCan, but unfortunately the preflash on the 33WR can't be disabled otherwise the MS-1 would be pretty near ideal. The Phoenix 66S Pro is unusable for the same reason but is a great concept for my needs (flash built into a handgrip). This Phoenix Digital Slave has an ISO 100 guide rating of 79, would that be considered adequate?: http://porterscamerastore.com/Mercha...egory_Code=F3L . The Vivitar DF200 has an ISO 100 guide rating of 92: http://www.amazon.com/o/ASIN/B00009M...d=8BRCIKL3NP0X Thx!
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Old Dec 30, 2003, 8:05 AM   #4
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Tomac,
The VIVITAR DF200 Digital Flash 200 specify a Guide Number of 92(ISO 100/ft), 28(ISO 100/m) at 50mm

The Phoenix Digital Slave Flash specify ISO 100 guide number 79 , but does not mention at what coverage angle .
If the above guide number correspond to the full tele position of the zoom head , then this flash has a guide number lower then 79 at 50 mm , just to compare with the Vivitar. I can't find more details about this flash spec anywhere . But may be it's adequate for "normal" flash picture (reasonably sized room)
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Old Dec 30, 2003, 8:13 AM   #5
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Thx for the info, KCan, that's the problem w/being a newb, too much to learn too fast! (I haven't messed w/flashes since my 35mm days in the '70s...) If I'm going to get a slave flash (even if it's used only rarely) then I want one powerful enough to do the job. Perhaps the extra power of the DF200 is worth the extra weight & effort of reprogramming every time it's used? (I don't want to go more than the $70 for the DF200). Any other makes/models worth considering? Thx again...
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Old Dec 30, 2003, 11:17 AM   #6
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Does this help?
http://www.srelectronics.com/
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Old Dec 30, 2003, 4:24 PM   #7
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Thx! More grist for the mill!...
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Old Dec 30, 2003, 4:45 PM   #8
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You can get the Vivitar DF200 from B&H for $70 (plus shipping).


http://www.bhphotovideo.com/bnh/controller/home;jsessionid=1x2jY9yxLm!-844285013?O=productlist&A=details&Q=&sku=293955&is =REG
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Old Feb 7, 2004, 9:15 PM   #9
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I think we're ahead of ourselves here.... if your Optio is a pre flash model camera, you are not going to be able to use a slave unit.
I have heard that there is a slave eye that overides the weak pre flash, and that would be the only option. You might check one of the larger camera outlets to see if they sell that type of slave eye, and if this is so, you can use any external flash with your camera, by adjusting the aperture according to the light output.
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Old Feb 10, 2004, 10:40 PM   #10
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Default Re: Newb Confused About Slave Flash for Pre-Flashing Optio 3

Quote:
Originally Posted by Tomac
I've been researching this Forum and the more I read the more I'm confused! I thought the Vivitar DF200 might work well (and it still might) but it also seems rather large and heavy for use with a small & light digicam like the 33WR. Any suggestions from the experienced before my brain turns to mush and runs out my ears???
It is easy to figure if the preflash of your camera would work with a particular slave flash properly. Please the flash a few yards (e.g., 2-3 yards) away from your camera so that the slave sensor faces your camera. Turn the flash on, and take a picture of that slave flash. If the picture does not record the flash (i.e., a bright spot at the flash location), the preflash triggered the slave flash prematurely, and the slave flash is fooled by the preflash. If the image shows a bright spot at the flash location, the slave flash is triggered properly, and, as a result, it fires while the camera is taking picture. So, you can bring your camera to your local store and test each slave flash you like before making any decision.

A good slave flash is the Sunpak DS-20 http://www.adorama.com/SUDS20.html?s...DS20&item_no=1 But, test before you buy (if it is possible). Also, please see the "Slave Firing Tests" page of my Coolpix 950/990/995/2500/4500 User Guide. It is listed in the bottom of the user guide.

CK
http://www.cs.mtu.edu/~shene/DigiCam
Nikon Coolpix 950/990/995/2500/4500/5700 User Guide
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