OCF with wireless triggers ? 1st curtain sync / 2nd curtain sync setting wont work ?

plainman007

TPF Noob!
Joined
Jan 25, 2012
Messages
27
Reaction score
0
Can others edit my Photos
Photos NOT OK to edit
Hi,

I noticed when working with a wireless trigger for OCF, the camera doesnt allow me to set my options to 2nd curtain sync. Is this normal ???

Thanks
 

Mach0

TPF Supporters
Supporting Member
Joined
Oct 16, 2011
Messages
2,616
Reaction score
432
Location
203
Can others edit my Photos
Photos OK to edit
As long as you have a ttl compatible wireless set up IIRC
 
OP
P

plainman007

TPF Noob!
Joined
Jan 25, 2012
Messages
27
Reaction score
0
Can others edit my Photos
Photos NOT OK to edit
No TTL or ETTL here, just straight forward simple manual flashes and using a 2.4 ghz radio trigger. So not possible right ?
 
OP
P

plainman007

TPF Noob!
Joined
Jan 25, 2012
Messages
27
Reaction score
0
Can others edit my Photos
Photos NOT OK to edit
:). No wow.
 

Big Mike

I am Big, I am Mike
Staff member
Supporting Member
Joined
Dec 16, 2003
Messages
33,900
Reaction score
1,863
Location
Edmonton
Website
www.mikehodson.ca
Can others edit my Photos
Photos NOT OK to edit
The reason, is that without the full communication between camera and flash, the flash doesn't know what the shutter speed it. So it wouldn't know when the 2nd curtain will be closing...so it can't sync with it. The basic radio triggers only tell the flash when to fire...nothing else.
 
OP
P

plainman007

TPF Noob!
Joined
Jan 25, 2012
Messages
27
Reaction score
0
Can others edit my Photos
Photos NOT OK to edit
Yes Mike. Thats understandable. But 2nd curtain sync doesnt need any special coded info to be tranferred via radio. The cam body manufacturer can just ensure that when an off cam flash is attached the 2nd curtain pop signal is sent at the last moment just before the shutter closes. Its just a burst signal. But when that signal is popped can be decided by the cam. Im sure its just some programming into the EPROM onboard the cam, why would they hold back such simple things.
 

Most reactions

Top