Jump to content


Photo
- - - - -

8mm fisheye, backscatter


  • Please log in to reply
1 reply to this topic

#1 Diver4fun

Diver4fun

    Lionfish

  • Member
  • PipPip
  • 54 posts

Posted 10 September 2018 - 01:53 AM

Hi all,

 

I'm getting quite a lot of backscatter at the side when using the 8mm Olympus fisheye, even when I point the strobes significantly outward, away from the dome. 

Could my strobe arms be too short? I was using one segment, I believe 8".

 

Also, as I'm using the new Inon z-330, maybe the dome shades will help?

 

 


My Flickr underwater album - https://flic.kr/s/aHskUKoqFw


#2 Larry C

Larry C

    Sting Ray

  • Member
  • PipPipPip
  • 235 posts
  • Gender:Male
  • Location:Northern California
  • Interests:Diving, Sports, Antique Motorcycles and Old Trucks

Posted 10 September 2018 - 06:24 AM

Strobes should be about same distance from housing as subject.  If subject is more than 8", you probably need a double arm.  Strobes should be behind housing.  Strobes too far forward will cause backscatter or flare.  In poor conditions, with silty water or plankton, try increasing ISO and lowering strobe power for less reflection.


D500 NA-D500, D300 MDX-D300, 2X YS-D1, Tokina 10-17, Nikon 60AF D, Nikon 105mm AF-D, Nikon 35mm f2.0, L & M Sola 800/1200

Nikon F100 w/Sea & Sea NX100 Pro