Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-24-2013, 09:18 PM   #1
Veteran Member




Join Date: Dec 2010
Location: 11432
Photos: Albums
Posts: 382
Flash at outdoor pics

I have K-5, 16-50, and YN560ex flash light.

I'm studying about control the light at outside. Since my camera can not be use when the SS is over 1/160 or 1/180, I can't use my flash light. Also Even I use it, the back ground become too dark...

Should I buy TTL supported Flash?

11-24-2013, 09:32 PM   #2
Senior Member
DVaughan007's Avatar

Join Date: Sep 2011
Location: Rockhampton
Posts: 103
Hey mate,
Try using a nd filter to reduce light otherwise stop down. The results will depend on how powerful your flash is.
Cheers
Dan
11-25-2013, 01:33 AM   #3
Veteran Member
adwb's Avatar

Join Date: Sep 2009
Location: Bristol UK
Photos: Gallery
Posts: 1,632
Buy a flash meter and learn to trust it or learn that at (for example ) f8 and the flash at 1/2 power it needs to be 3 meters from the subject to give you a decent exposure, the shutter speed controls the ambient as I'm sure you know so the f -stop controls the amount of flash recorded, once you have a working formula it works every time and you can adjust from there with minor tweaks.

Pttl is not all it cracked up to be it gets fooled by high contrasting scenes and large expanses of dark or white areas , not surprising as that also can fool the meter in non flash modes and the meter is used to set the flash output in pttl.
11-25-2013, 10:43 AM   #4
Loyal Site Supporter
Loyal Site Supporter
Canada_Rockies's Avatar

Join Date: Nov 2007
Location: Sparwood, BC, Canada
Photos: Gallery | Albums
Posts: 9,737
adwb has the right idea. I do use a flash meter, but you can use the meter between your ears if you don't have one. The flash has a guide number for each f/stop you use and each power level on the flash. If you are using the flash to provide shadow fill, close down two stops or so from the guide number for the distance, and set the camera to give proper exposure at the new f/stop.

Example: Flash guide number = 80. Distance from you to subject, 10. Aperture is 80/10 = 8. Stop down to f/16 and adjust shutter to match for the scene. You will have perfect fill flash. If you want to brighten more, open the camera to f/11. If you want to exactly match the exposures, f/8.

11-25-2013, 11:02 AM   #5
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,557
QuoteOriginally posted by Canada_Rockies Quote
Example: Flash guide number = 80. Distance from you to subject, 10. Aperture is 80/10 = 8. Stop down to f/16 and adjust shutter to match for the scene. You will have perfect fill flash. If you want to brighten more, open the camera to f/11. If you want to exactly match the exposures, f/8.
I think that that is exactly the problem that OP has. With those settings, the camera might tell him / her to use 1/2000s shutter speed. So how do we work around that?
11-25-2013, 11:13 AM   #6
Loyal Site Supporter
Loyal Site Supporter
Canada_Rockies's Avatar

Join Date: Nov 2007
Location: Sparwood, BC, Canada
Photos: Gallery | Albums
Posts: 9,737
Two options come to mind immediately.

- Lower the ISO. At ISO 100, f/16 @ 1/100 is bright sunlight exposure. If you are using a camera with minimum ISO of 200, that's f/16 at X sync. You can take care of 1/3 stop overexposure even on JPEG.

- Use a filter (CPL = 2 stops)
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!
flash, light, lighting, photo studio, strobist
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
A cheap flash for indoor/outdoor portraitures? MikeS Pentax Camera and Field Accessories 17 08-13-2013 05:45 PM
Any advice or technique for flash at outdoor??? rlatjsrud Troubleshooting and Beginner Help 3 03-29-2013 06:28 AM
People Outdoor flash use - people jpzk Photo Critique 18 10-11-2010 04:13 PM
Outdoor flash - Hotshoe flash gostwick Flashes, Lighting, and Studio 4 06-29-2009 03:20 PM
3 pics from an outdoor wedding thosan Post Your Photos! 7 06-27-2008 10:59 AM



All times are GMT -7. The time now is 04:59 PM. | 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