Underexposure in portrait position.
PhotoCamel: Your friendly photo community, with free discussion forums, digital photography reviews, photo sharing, galleries, downloads, blogs, photography contests, and prizes.
 

Go Back   PhotoCamel - Your Friendly Photography Forum > Tools Of the Trade > Lighting Technique

Reply
 
LinkBack Thread Tools Display Modes
Old 12-08-2007   #1
Vicuna
 
Malakor's Avatar
 
Location: Pattaya, Thailand
Posts: 162
CamelKarma: 33
Editing OK?: Ask First
Constructive Critique?: Yes
Default Underexposure in portrait position.

I have rather a strange 'problem' with my simple flash set-up - odd that I've never really noticed it before. Using on-camera flash, and holding the camera upright in the portrait position, my images come out with about -0.7EV underexposure. Direct or bounce - it makes no difference.
I just cannot explain this one, whether it's because the reflector is optimized for horizontal operation, or perhaps because the camera is second guessing me and reducing the flash output for an assumed portrait, I really have no idea! I can always dial in the compensation but it's annoying when you're switching between styles and forget to re-set it.

Anyone recall having a similar hassle?

__________________
Members don't see ads in threads. Register for your free account today and become a member of PhotoCamel to open up the site's many benefits and features.
Malakor is offline   Reply With Quote
Old 12-08-2007   #2
Former Camel
 
Posts: 339
CamelKarma: 34
Editing OK?: Ask First
Constructive Critique?: Yes
Default Re: Underexposure in portrait position.

The metering sensor pattern gets different results at 90 degree angles?
I would expect it to.
W.Smith is offline   Reply With Quote
Old 12-09-2007   #3
Llama
 
J T Smith's Avatar
 
Location: Pittsfield IL
Posts: 597
CamelKarma: 1855123
Editing OK?: Ask First
Constructive Critique?: Yes
Default Re: Underexposure in portrait position.

Seems like it could be related to what is mentioned. Not sure what camera you have or your metering dynamics but you might try setting it to spot metering instead of some matrix setting.

J T
J T Smith is offline   Reply With Quote
Old 12-09-2007   #4
Vicuna
 
Malakor's Avatar
 
Location: Pattaya, Thailand
Posts: 162
CamelKarma: 33
Editing OK?: Ask First
Constructive Critique?: Yes
Default Re: Underexposure in portrait position.

OK..... solved it.......... pilot error! It was a metering problem of sorts - by holding the camera vertically it was picking up a small, white object in the foreground that was only just in the frame and thus adjusting the flash intensity to that rather than the main subject. Oh... the embarrassment!
As you may have already gathered, I don't get to use flash a lot........


__________________
Members don't see ads in threads. Register for your free account today and become a member of PhotoCamel to open up the site's many benefits and features.
Malakor is offline   Reply With Quote
Reply

« PhotoCamel - Your Friendly Photography Forum > Tools Of the Trade > Lighting Technique »


Share this topic:

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
how does a beginner know how to position a 3-point light? fosheezy Lighting Technique 9 01-09-2008 04:09 PM
Softbox position, or why I like them big grsphoto Lighting Technique 3 06-09-2006 05:34 PM
flash underexposure!? jacko Other Cameras and Lenses 5 03-07-2006 11:56 AM