Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Guest
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Register to forums    Log in

 
POTN forums are closing 31.12.2023. Please see https://photography-on-the.net/forum/showthread.php?t=1530921 and other posts in that thread for details.
FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 03 May 2006 (Wednesday) 13:05
Search threadPrev/next
sponsored links (only for non-logged)

Omni-Bounce

 
burchy
Member
241 posts
Joined Oct 2005
Location: Manchester, UK
     
May 03, 2006 13:05 |  #1

I've just about mastered getting reasonable results with my EOS300D with 550EX for indoor shots of my little girl. Basically I nearly always have the camera in manual mode, large f stop and the shutter around 100-125 second. However I was unimpressed with the harsh light and shadows I was getting, so I started angling the head at about 45 degrees with the flap thingy extended. The results were better, but not as good as I'd hoped for so I've purchased an Omni-Bounce to see if that'll improve things. The following image is with the camera in manual, shutter at 125, f5, ISO 100, Omni-bounce fitted and flash angled at 45 degrees. I was amazed how dark it was, it wasn't much better with +1 FEC dialled in, any ideas, guidance?

My only thought is I might have been a bit close, was about 4-5 feet away (guess)

IMAGE NOT FOUND
HTTP response: NOT FOUND | MIME changed to 'image/png'

Simon

Canon 30D + BG-E2, Sigma 17-70 f2.8-4.5, Canon EF 50mm f1.8 MKII, Canon EF 100-300 f4.5-5.6 USM, Canon Speedlite 550ex

  
  LOG IN TO REPLY
Rob612
Goldmember
Avatar
2,459 posts
Likes: 6
Joined Apr 2005
Location: Rome, Italy
     
May 03, 2006 15:40 |  #2

Dial FEC @+2 and you're set ;)




  
  LOG IN TO REPLY
jjonsalt
Goldmember
1,502 posts
Joined Oct 2005
Location: Central Florida
     
May 03, 2006 18:44 |  #3
bannedPermanent ban

Get Westcott's Mini Apollo Softbox.




  
  LOG IN TO REPLY
burchy
THREAD ­ STARTER
Member
241 posts
Joined Oct 2005
Location: Manchester, UK
     
May 04, 2006 02:09 as a reply to  @ jjonsalt's post |  #4

Thanks Rob, will give it a try. I take it because of the Omni-bounce it won't come out too harsh, even at +2?


Simon

Canon 30D + BG-E2, Sigma 17-70 f2.8-4.5, Canon EF 50mm f1.8 MKII, Canon EF 100-300 f4.5-5.6 USM, Canon Speedlite 550ex

  
  LOG IN TO REPLY
tim
Light Bringer
Avatar
51,010 posts
Likes: 375
Joined Nov 2004
Location: Wellington, New Zealand
     
May 04, 2006 05:07 |  #5

A better idea that slapping plastic onto your flash is to understand light. I don't like the omni at all. Unless you bounce it it makes no difference, if you bounce it you might as well just use a white bounce card.


Professional wedding photographer, solution architect and general technical guy with multiple Amazon Web Services certifications.
Read all my FAQs (wedding, printing, lighting, books, etc)

  
  LOG IN TO REPLY
jjonsalt
Goldmember
1,502 posts
Joined Oct 2005
Location: Central Florida
     
May 04, 2006 07:31 as a reply to  @ tim's post |  #6
bannedPermanent ban

tim wrote:
A better idea that slapping plastic onto your flash is to understand light. I don't like the omni at all. Unless you bounce it it makes no difference, if you bounce it you might as well just use a white bounce card.

amen




  
  LOG IN TO REPLY
burchy
THREAD ­ STARTER
Member
241 posts
Joined Oct 2005
Location: Manchester, UK
     
May 04, 2006 09:45 as a reply to  @ jjonsalt's post |  #7

Isn't that precisely the same principle as extending the flap thingy and angling the flash at 45 degrees or vertical? If so I'm getting quite harsh shadows using that technique.
As far I understand it, it's virtually impossible to eliminate the shadows using a single flash on the hotshoe anyhow. I'm only after a compromise given that I don't want to go hassle of setting up appropriate lighting. For the price of the Omni-bounce it was worth seeing what advantage (if any) it offered over the technique I was using previously.
My little girl will pose for about a nano second before getting bored and either wandering off or trying to grab the camera, so you have to be fast and don't have the luxury to think things through. If I can come up with some "default" settings for taking shots indoors with the flash that give me reasonibly consistent results then I'm happy. In the absence of any actual advice, I'll play with the Omni for a bit and then decide whether it adds any benefit over my original technique.


Simon

Canon 30D + BG-E2, Sigma 17-70 f2.8-4.5, Canon EF 50mm f1.8 MKII, Canon EF 100-300 f4.5-5.6 USM, Canon Speedlite 550ex

  
  LOG IN TO REPLY
sony23
Senior Member
738 posts
Likes: 1
Joined May 2005
     
May 04, 2006 11:30 as a reply to  @ burchy's post |  #8

Do as I do when using the omnibounce, put the camera in manual iso 400 f5.6 shutter 1/125 and angle the flash at 45 degrees and dial in +2 on the flash. I have never had a problem with this setup.

Bruce


  
  LOG IN TO REPLY
Searchlight
Hatchling
8 posts
Joined May 2005
Location: San Mateo, CA.
     
May 04, 2006 11:40 |  #9

The omni bouce is better than straigt on flash. I never bouce it unless I need to cut intensity in a very small room.

Boucing light when possible is preferable. Flash straight up with a white card on flash.

Sometimes when not at 45 degees the omnibouce fools your sensor into under Exp.

I generally find I must use FEC +1-1 2/3 with the omnibounce.

Now I know why I need FEC as my diffused flash head reduces light by a stop, stop and a half but when shooting with ETTL mode in theory the flash should adjust for the decrease flash output from the omnibouce.

My experience is that I most deffinately need flash exposure compensation when using the omni bounce or just plain bouce period. I'm just wondering why EttL doesn't atomatically compensate for me.

Any comments?




  
  LOG IN TO REPLY
jjonsalt
Goldmember
1,502 posts
Joined Oct 2005
Location: Central Florida
     
May 04, 2006 11:45 as a reply to  @ Searchlight's post |  #10
bannedPermanent ban

Searchlight wrote:
Any comments?

I can only tell you that with an 8-12 ft ceiling (white or very, very light) and using LumiQuest's 80/20 bouncer I can't recall any metering problems using ETTL.




  
  LOG IN TO REPLY
burchy
THREAD ­ STARTER
Member
241 posts
Joined Oct 2005
Location: Manchester, UK
     
May 04, 2006 13:43 as a reply to  @ jjonsalt's post |  #11

Thanks for the input guys, whilst all this is very reassuring I am a bit confused why the ETTL doesn't just automatically compensate. However nice it would be to know, I've got to the stage with my ETTL relationship (7 year itch syndrome!) where I just don't care anymore and just want to get some consistency with my results. Will try more FEC and see if it helps.


Simon

Canon 30D + BG-E2, Sigma 17-70 f2.8-4.5, Canon EF 50mm f1.8 MKII, Canon EF 100-300 f4.5-5.6 USM, Canon Speedlite 550ex

  
  LOG IN TO REPLY
Curtis ­ N
Master Flasher
Avatar
19,129 posts
Likes: 11
Joined Apr 2005
Location: Northern Illinois, US
     
May 04, 2006 14:17 |  #12

Regardless of our opinions of the various flash attachments available, so far no one in this thread has offered an explanation as to why the shot is underexposed. I don't have a good explanation, either. Sometimes E-TTL can be confused if there's a fair amount of white in the frame. Perhaps the child's white shirt was a factor. We may never know for sure. This is a good example of why we should look at our histograms frequently and adjust accordingly.

Regarding the Omnibounce attachment, remember one thing: "Omni" means "every". It is designed to throw the light EVERYWHERE, with the idea that it will BOUNCE off of whatever it hits to create a diffuse light source. The angle of the flash head with this attachment won't make a lot of difference.

I started angling the head at about 45 degrees with the flap thingy extended.

This might work sometimes and lead to disastater other times. The amount of light that hits your subject directly from an angled flash head will depend on the flash zoom setting, subject size and distance, and other factors. If you want to bounce the light without the omnibounce, aim the flash straight up and use an index card rubber-banded to it to creat catchlights and a bit of direct illumination. In the shot above, the camera was rotated clockwise 90 degrees so the flash was on the right side of the camera. In this orientation, you will need to swivel, rather than tilt the flash to point it toward the ceiling. The built-in pull-out mini bounce card thingy won't do any good in this arrangement. Alternatively, an index card attached to the flash head would need to be secured to the side, in order to direct light toward your subject.


"If you're not having fun, your pictures will reflect that." - Joe McNally
Chicago area POTN events (external link)
Flash Photography 101 | The EOS Flash Bible  (external link)| Techniques for Better On-Camera Flash (external link) | How to Use Flash Outdoors| Excel-based DOF Calculator (external link)

  
  LOG IN TO REPLY
peatoire
Goldmember
Avatar
1,084 posts
Likes: 4
Joined Nov 2005
Location: Nottingham (Home of Robbing Hoods)
     
May 04, 2006 14:29 |  #13

Can't help on the underexposure, sorry. I have an omnibounce but find if you're close up indoors, what's best for me is point the flash striaght up with the catchlight card out. This gives nice soft fleshtones, if it's quite dark use Tv Mode and play with exposures to let as much ambient light in as poss, try as slow as 20th sec if need be, the flash will fix the subject. BTW Stofen recommend 65 Deg.


5D & Grip, 17-40 f4, 70-200 f2.8 IS, 50mm 1.4, 85mm1.2 580EX 430EX II, Tamron SP AF 90mm f/2.8 Macro. Rickety tripod.
Andy Peat
---------------
Don't underestimate the power of stupid people in large numbers.

  
  LOG IN TO REPLY
burchy
THREAD ­ STARTER
Member
241 posts
Joined Oct 2005
Location: Manchester, UK
     
May 04, 2006 15:25 as a reply to  @ peatoire's post |  #14

Thanks Curtis, there's some really good points in your post that I'd been completely oblivious to, but obvious now you've pointed them out. I'll certainly take them onboard from now on.

peatoire, I'll certainly try playing with the head angle, although the destructions that came with the Omni definately recommended 45 degrees.


Simon

Canon 30D + BG-E2, Sigma 17-70 f2.8-4.5, Canon EF 50mm f1.8 MKII, Canon EF 100-300 f4.5-5.6 USM, Canon Speedlite 550ex

  
  LOG IN TO REPLY
peatoire
Goldmember
Avatar
1,084 posts
Likes: 4
Joined Nov 2005
Location: Nottingham (Home of Robbing Hoods)
     
May 04, 2006 16:32 |  #15

Yes, sorry you're rifgt, my mistake,
could have sworn it said 60 on my instructions.
Give Tv mode a crack though.


5D & Grip, 17-40 f4, 70-200 f2.8 IS, 50mm 1.4, 85mm1.2 580EX 430EX II, Tamron SP AF 90mm f/2.8 Macro. Rickety tripod.
Andy Peat
---------------
Don't underestimate the power of stupid people in large numbers.

  
  LOG IN TO REPLY
sponsored links (only for non-logged)

5,708 views & 0 likes for this thread, 10 members have posted to it.
Omni-Bounce
FORUMS General Gear Talk Flash and Studio Lighting 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Forums   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset   •  Home

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.58forum software
version 2.58 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member was a spammer, and banned as such!
2217 guests, 99 members online
Simultaneous users record so far is 15,144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.