Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-04-2018, 01:04 PM   #1
New Member




Join Date: Jan 2018
Location: Philadelphia PA
Posts: 22
What happen to the F stops on third party flashes

Was looking at the Yongnuo YN585EX and others. They have P-TLL and manual but no F stop reading, what happen. Last flash I bought was a Nikon SB-28.

06-04-2018, 01:14 PM - 1 Like   #2
Pentaxian
SSGGeezer's Avatar

Join Date: Jun 2017
Location: Indiana, U.S.
Photos: Gallery | Albums
Posts: 4,846
No need, if you know you need 1/16th you set it manually, or you use the Through The Lens metering where the pre-flash sets the level for you based on the camera settings. The Yongnuo 585 will do that as a primary or as a slave triggered by an on camera flash if set up correctly. User mcgregni put together a flash guide that is linked in this thread here.
Comprehensive Pentax Flash Guide - PentaxForums.com

I have 2 of these and they are a great deal, and if the firmware update for HSS ever comes out, they will be the best deal for a highly capable flash.

PS remember wireless trigger does not always mean radio and with Pentax the settings and trigger are in a pre flash burst of light from the master flash emitter.

Last edited by SSGGeezer; 06-04-2018 at 01:17 PM. Reason: spelling
06-04-2018, 06:31 PM   #3
Otis Memorial Pentaxian
Loyal Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 41,510
QuoteOriginally posted by LarryGE Quote
They have P-TLL and manual but no F stop reading
If you are using P-TTL, an aperture table is not useful. For manual mode, it might be nice for the flash to display an aperture vs. distance scale, since ISO is shared by the body when an A-contact lens is mounted. However, so is the set aperture so a more simple scale showing the appropriate distance would suffice. This is how Pentax-brand flash and most compatible 3rd-party behave. Sadly, the YN 585EX does not support this feature and one is totally on their own when using the flash in manual mode.

It would be nice if the equivalent of the old-fashioned slide-rule style scales were still included for manual flash, but such is (sadly) not the common case in general.


Steve
06-05-2018, 01:35 AM - 5 Likes   #4
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 10,365
In a nutshell: The manufacturers stopped giving an F.


Last edited by Digitalis; 06-05-2018 at 05:50 AM.
06-11-2018, 10:51 AM   #5
New Member




Join Date: Jan 2018
Location: Philadelphia PA
Posts: 22
Original Poster
Thanks for the reply. What 3rd party flash will do that and give me HSS?
06-11-2018, 11:25 AM   #6
Otis Memorial Pentaxian
Loyal Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 41,510
QuoteOriginally posted by LarryGE Quote
Thanks for the reply. What 3rd party flash will do that and give me HSS?
I am not sure which that is meant, but the short story regarding HSS is that a flash or device that as both the four Pentax hotshoe contacts on its foot and which "talks" Pentax P-TTL is required to provide the means for the HSS to be negotiated (the sync for HSS is sent through the data contact on the hotshoe, not the main flash trigger contact). Many third-party flash support HSS as part of P-TTL automation. Solutions other than P-TTL+HSS exist, but all require that the camera be fooled into sending the sync through the data contact for speeds greater than the X-sync speed.


Steve

Last edited by stevebrot; 06-19-2018 at 02:23 PM.
06-19-2018, 11:39 AM   #7
New Member




Join Date: Jan 2018
Location: Philadelphia PA
Posts: 22
Original Poster
QuoteOriginally posted by stevebrot Quote
I am not sure which that is meant, but the short story regarding HSS is that a flash or device that as both the four Pentax hotshoe contacts on its foot and which "talks" Pentax P-TTL is required to provide the means for the HSS to be negotiated (the sync for HSS is sent through the data contact on the hotshoe, not the main flash trigger contact). Many third-party flash support HSS as part of P-TTL automation. Solutions other than P-TTL+HSS, but all require that the camera be fooled into sending the sync through the data contact for speeds greater than the X-sync speed.


Steve
Thanks for the reply

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
third party, tripod
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Used Pentax PK FAJ A/F fit 75-300mm f4-m lens or new third party one for K-S1? Scott-a Pentax SLR Lens Discussion 4 06-01-2017 04:42 AM
The Reason Why Third Party Stobe Manfactures Don't Supports P-TTL fwbigd Flashes, Lighting, and Studio 40 12-31-2016 11:09 AM
Older third party flashes and Pentax P3 compatibility CanadianPhotoLuddite Pentax Film SLR Discussion 6 04-23-2013 01:56 PM
Can Pentax 360 FGZ communicate with third party flashes? Bil246 Flashes, Lighting, and Studio 1 08-14-2012 05:48 AM
would this happen if it were a Tea Party member? gokenin General Talk 46 07-13-2010 12:15 PM



All times are GMT -7. The time now is 12:48 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top