Sigma EF-500 DG super for Nikon on a Pentax K100D?

Nathan-vD · 09-04-2009, 01:02 AM

I've got a Sigma EF-500 DG super for Nikon and was wondering if there would be any problems if I used it on my K100D

I've looked around the forums and found some useful information regarding Nikon flash units, and they seem to work without any problems. I just wanted to make sure that it wont fry my camera with using the EF-500 even though its made for Nikon.

I tested the flash with a multi meter and it puts out just under 5 volts

Last edited by Nathan-vD; 09-04-2009 at 03:21 AM.

flyer · 09-04-2009, 02:10 AM

It won't fry your camera, but you'll have to use it in manual mode.

D W · 09-04-2009, 07:11 AM

Just as a precaution, you should tape insulate the extra contacts with the exception of the large centre trigger contact.
Nikon and Pentax contact pattern are similar but the signal sent through each point is different.

SOldBear · 09-04-2009, 04:11 PM

Originally posted by Nathan-vD

I've got a Sigma EF-500 DG super for Nikon and was wondering if there would be any problems if I used it on my K100D

Not a a problem. The only limitation is that the Sigma flash will fire at full power. You'll need to adjust the camera's ISO and aperture setting depending on the distance to the subject.

Originally posted by Nathan-vD

I've looked around the forums and found some useful information regarding Nikon flash units, and they seem to work without any problems. I just wanted to make sure that it wont fry my camera with using the EF-500 even though its made for Nikon.

It won't fry your camera. You don't even need to mask the "extra" contact pins. The ones for Pentax are at different locations from those for Nikon.

But most Nikon flash units in discussion have their own light sensor and thus can be used in auto mode. This is one of the reasons why I advocate buying flash with its own sensor. You can use them in auto mode with cameras of different brands.

Nathan-vD · 09-04-2009, 07:18 PM

Thanks for your help i really appreciate it

09-04-2009, 01:02 AM	#1
Nathan-vD New Member Join Date: Dec 2008 Location: Australia Posts: 3	Sigma EF-500 DG super for Nikon on a Pentax K100D? I've got a Sigma EF-500 DG super for Nikon and was wondering if there would be any problems if I used it on my K100D I've looked around the forums and found some useful information regarding Nikon flash units, and they seem to work without any problems. I just wanted to make sure that it wont fry my camera with using the EF-500 even though its made for Nikon. I tested the flash with a multi meter and it puts out just under 5 volts Last edited by Nathan-vD; 09-04-2009 at 03:21 AM.

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09-04-2009, 02:10 AM	#2
flyer Veteran Member Join Date: Jan 2008 Location: Ste-Anne des Plaines, Qc., Canada Posts: 2,013	It won't fry your camera, but you'll have to use it in manual mode.

09-04-2009, 07:11 AM	#3
D W Veteran Member Join Date: Mar 2008 Location: Hogtown, ON, Canada Posts: 329	Just as a precaution, you should tape insulate the extra contacts with the exception of the large centre trigger contact. Nikon and Pentax contact pattern are similar but the signal sent through each point is different.

09-04-2009, 04:11 PM	#4
SOldBear Veteran Member Join Date: Feb 2009 Location: Alameda, CA Posts: 3,206	Originally posted by Nathan-vD I've got a Sigma EF-500 DG super for Nikon and was wondering if there would be any problems if I used it on my K100D Not a a problem. The only limitation is that the Sigma flash will fire at full power. You'll need to adjust the camera's ISO and aperture setting depending on the distance to the subject. Originally posted by Nathan-vD I've looked around the forums and found some useful information regarding Nikon flash units, and they seem to work without any problems. I just wanted to make sure that it wont fry my camera with using the EF-500 even though its made for Nikon. It won't fry your camera. You don't even need to mask the "extra" contact pins. The ones for Pentax are at different locations from those for Nikon. But most Nikon flash units in discussion have their own light sensor and thus can be used in auto mode. This is one of the reasons why I advocate buying flash with its own sensor. You can use them in auto mode with cameras of different brands.

09-04-2009, 07:18 PM	#5
Nathan-vD New Member Join Date: Dec 2008 Location: Australia Posts: 3 Original Poster	Thanks for your help i really appreciate it