Nissin i40 flash for Nikon on a Pentax?

amp · 02-22-2017, 09:14 PM

I've seen questions asked about Canon and Nikon flashes working on Pentax cameras, and I was curious if anyone knows if a Nissin i40 flash for Nikon would work on a Pentax in any fashion. I'm sure not in TTL, but maybe manual mode?
Any help is appreciated. Thanks

**clackers** · 02-22-2017, 10:38 PM - **1 Like**

Originally posted by amp

I've seen questions asked about Canon and Nikon flashes working on Pentax cameras, and I was curious if anyone knows if a Nissin i40 flash for Nikon would work on a Pentax in any fashion. I'm sure not in TTL, but maybe manual mode?
Any help is appreciated. Thanks

It should mount happily, Amp, and flash in manual mode happily.

**Alex645** · 02-23-2017, 01:16 AM

Check out this article:
Pentax, Nikon & Canon Hotshoe pinouts: Studio and Lighting Technique Forum: Digital Photography Review

The pins on the X shoe for both Nikon and Pentax look the same, but the functionality location are different except the trigger. So it would work in manual and also the A (auto) mode, but not TTL or other functions like zoom.

I am not an electrical expert, but I would be a bit concerned about the volt or amps coming from the other connections potentially harming the camera or flash when mismatched. I would also think that Nikon and Pentax engineers wouldnʻt put the pins in the same layout if it was going to harm either camera or flash if the wrong flash was mounted. Itʻs probably insignificant, but I personally wouldnʻt risk it without taking a multimeter to a functioning P-TTL flash and measuring that to the Nissin i40 for Nikon.

GeneV · 02-27-2017, 04:03 PM - **1 Like**

I have an i40 for Sony, and I would not be concerned about mounting it in full manual mode. OK, maybe I'll try it on one of my older bodies.

BrianR · 02-27-2017, 09:26 PM - **1 Like**

You can always put electrical tape over the pins if you're worried about some Pentax/Nikon cross talk, it's just the central pin and the contacts on the side that need to make contact for manual mode.

For what it's worth, I've used a few Nikon models on my Pentax with no tape or any sign of trouble (SB-24/26/28/80DX), so I'd be pretty cavalier about mounting a wrong brand modern flash on my camera. Alright, alright, I'd also play it safe and test it on one of Gene's older bodies first, but I wouldn't take any other precautions

.

sculptor666 · 03-30-2017, 08:20 AM

you can buy a set of cheap radio triggers if you're worried about mounting it on the camera, and a dual hot shoe adapter or something:

02-22-2017, 09:14 PM	#1
amp Senior Member Join Date: Dec 2015 Posts: 168	Nissin i40 flash for Nikon on a Pentax? I've seen questions asked about Canon and Nikon flashes working on Pentax cameras, and I was curious if anyone knows if a Nissin i40 flash for Nikon would work on a Pentax in any fashion. I'm sure not in TTL, but maybe manual mode? Any help is appreciated. Thanks

02-23-2017, 01:16 AM	#3
Alex645 Site Supporter Join Date: May 2015 Location: Kaneohe, HI Photos: Albums Posts: 3,526	Check out this article: Pentax, Nikon & Canon Hotshoe pinouts: Studio and Lighting Technique Forum: Digital Photography Review The pins on the X shoe for both Nikon and Pentax look the same, but the functionality location are different except the trigger. So it would work in manual and also the A (auto) mode, but not TTL or other functions like zoom. I am not an electrical expert, but I would be a bit concerned about the volt or amps coming from the other connections potentially harming the camera or flash when mismatched. I would also think that Nikon and Pentax engineers wouldnʻt put the pins in the same layout if it was going to harm either camera or flash if the wrong flash was mounted. Itʻs probably insignificant, but I personally wouldnʻt risk it without taking a multimeter to a functioning P-TTL flash and measuring that to the Nissin i40 for Nikon. Last edited by Alex645; 02-23-2017 at 01:22 AM.

02-27-2017, 09:26 PM - 1 Like	#5
BrianR Veteran Member Join Date: Dec 2010 Location: Ontario Photos: Gallery Posts: 3,332	You can always put electrical tape over the pins if you're worried about some Pentax/Nikon cross talk, it's just the central pin and the contacts on the side that need to make contact for manual mode. For what it's worth, I've used a few Nikon models on my Pentax with no tape or any sign of trouble (SB-24/26/28/80DX), so I'd be pretty cavalier about mounting a wrong brand modern flash on my camera. Alright, alright, I'd also play it safe and test it on one of Gene's older bodies first, but I wouldn't take any other precautions.

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02-22-2017, 10:38 PM - 1 Like	#2
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by amp I've seen questions asked about Canon and Nikon flashes working on Pentax cameras, and I was curious if anyone knows if a Nissin i40 flash for Nikon would work on a Pentax in any fashion. I'm sure not in TTL, but maybe manual mode? Any help is appreciated. Thanks It should mount happily, Amp, and flash in manual mode happily.

02-27-2017, 04:03 PM - 1 Like	#4
GeneV Veteran Member Join Date: Oct 2008 Location: Albuquerque NM Photos: Albums Posts: 9,830	I have an i40 for Sony, and I would not be concerned about mounting it in full manual mode. OK, maybe I'll try it on one of my older bodies.

03-30-2017, 08:20 AM	#6
sculptor666 Pentaxian Join Date: Dec 2013 Location: PA Photos: Gallery Posts: 675	you can buy a set of cheap radio triggers if you're worried about mounting it on the camera, and a dual hot shoe adapter or something: