Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Pentax / Samsung dSLR, K Mount Mirrorless

Reply
 
Thread Tools Search this Thread
Old Aug 24, 2007, 12:59 PM   #1
Senior Member
 
Peacekeeper's Avatar
 
Join Date: Jan 2006
Posts: 1,024
Default

I purchased two of these:

SF4 Digital Slave Flash Sensor Ignores Preflash
http://cgi.ebay.com.au/SF4-Digital-S...QQcmdZViewItem





Works a treat with my K10D.

Has a switch on the bottom and a screw in thread to mount onto a tripod. Also have PC sync sockets. And jack socket for remote activation of camera.

The mode button cycles through the 5 different settings.
1 Instant Mode - Triggers the attached flash instantly when the camera built-in flash fires
2 Delay Mode - Triggers the attached flash 50uS after the camera built-in flash fires
3 Delay Mode - Triggers the attached flash when the camera built-in flash fires the second time.
4 Delay Mode - Triggers the attached flash when the camera built-in flash fires the third time.
5 Delay Mode - Triggers the attached flash when the camera built-in flash fires the fourth time.

Pentax syncs nicely in Mode 2 in normal flash mode
Mode 3 for wireless flash (on board flash in command mode)
Mode 4 for wireless with red eye reduction

I also picked up two flashes second hand from my Pentax guy, one for $15, an older pro flash with swivelhead and manual control that allows manual settings as low as 1/32 power and the another smaller flash for free. Both use hot shoe and have built in PC sync cords.

So, with the two triggers I can wireless trigger three of my four flashes.

All I need to learn now is the art of flash lighting a subject with artistic creativity.

Glad I found the strobist website for some guidance.
http://strobist.blogspot.com/2006/03/lighting-101.html

I have one question though about flash trigger voltages... I was not game to put my used flashes on the Pentax K10D until I checked the trigger voltages.

I charged the flashes up and put the multimeter on the earth tag and the centre pin on the flash and obtained readings of approx 210volts.

I am assuming that this means that both of these flashes trigger at 210volts and would NOT be safe to put on the K10D???????

Can someone confirm this is the correct method?

Peacekeeper is offline   Reply With Quote
Sponsored Links
Old Aug 24, 2007, 2:19 PM   #2
Senior Member
 
robar's Avatar
 
Join Date: Mar 2005
Location: D/FW area Texas
Posts: 7,590
Default

pentax USA tech told me 300v
guy told me pentax EU said 30v hehe
you be the judge..

roy
robar is offline   Reply With Quote
Old Aug 24, 2007, 3:36 PM   #3
Senior Member
 
Peacekeeper's Avatar
 
Join Date: Jan 2006
Posts: 1,024
Default

I think I will just use the older flashes on the triggers for the time being until I can get home and put my Sigma EF500Dg flash and Pentax AF540FGZ flash on the meter to see whet there voltages are! :-D

Unless someone here can check and tell me what they are. :-?
Peacekeeper is offline   Reply With Quote
Old Aug 24, 2007, 4:11 PM   #4
Senior Member
 
robar's Avatar
 
Join Date: Mar 2005
Location: D/FW area Texas
Posts: 7,590
Default

hold on and i'll ck the sigma.
robar is offline   Reply With Quote
Old Aug 24, 2007, 4:14 PM   #5
Senior Member
 
robar's Avatar
 
Join Date: Mar 2005
Location: D/FW area Texas
Posts: 7,590
Default

sigma 500 super is 4.57-.59v

roy
the strobist site is a really nice site.
robar is offline   Reply With Quote
Old Aug 24, 2007, 4:44 PM   #6
Senior Member
 
Peacekeeper's Avatar
 
Join Date: Jan 2006
Posts: 1,024
Default

Big difference between 4.57-.59v and 210v.

Yeah that site has given me some food for thought. As I said, I know nothing about that sort of lighting.

Planning on playing a bit and adding some more techniques to my bag of tricks.
Peacekeeper is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 2:43 AM.