Jump to content


guyharrisonphoto

Member Since 15 Jun 2011
Offline Last Active Mar 12 2018 09:08 AM
-----

Topics I've Started

Blackwater tips?

29 June 2017 - 11:40 AM

Doing my first blackwater dive tomorrow nite.

 

My rig is the OMD-EM5 mark 1, nauti housing, Oly 60mm macro, Keldan 4x video, one S&S YS-D1 strobe.

 

No idea for settings.

 

Should I spot meter and link the metering to the focus point?

 

Recommended aperture and shutter and ISO just as a starting point?

 

I assume continuous AF

 

TTL flash if exposure is linked to focus point.  If not, what manual settings?

 

Will the Keldan (6K lumens) be bright enough so I don't need the strobe?

 

Strobe positioning tips for backscatter?

 

Any help would be appreciated, I have no idea of where to begin . . . 

 

Thanks!!


1/160 sync--deal breaker?

15 June 2017 - 05:06 AM

Hi,

 

I am considering moving to a sony a6500 from my Oly em-5 original version.  My em-5 syncs at 1/250  The A-6500 syncs at 1/160.  This is a difference of 2/3 stop.

 

Is this a serious disadvantage, especially when shooting animals/divers with sunballs in clear tropical waters?  I have see some A-6500 sample pics where the lens was fully stopped down and the subject properly exposed with flash at 1/160, but the sunball was still too large and blown out, but I don't know if the difference in sync speed would make any difference.

 

so, I thought I would ask more experienced people here what they think.  Are there other disadvantages that I should know about?

 

Or, is this  really not that big a deal.

 

EDIT,  I thought I read somewhere that someone  tested the A-6500 with manual flash at 1/250 and there was no issue with the shutter blades.  Does anyone know about this?  Will the camera even allow this?

 

Thanks!