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Akoni

Member Since 02 May 2010
Offline Last Active Apr 15 2018 05:48 AM
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Posts I've Made

In Topic: News: Atomos Ninja V - New 5” Recorder

15 April 2018 - 05:46 AM

If I recall correctly, this is a touchscreen only unit? Not sure how much that would hamper it's utility U/W.


In Topic: Z-Bolt Underwater Green Dive Laser

07 April 2018 - 07:26 PM

Was this for making measurements?


In Topic: IS IT WORTH IT? GH5s - No Stabilization

02 April 2018 - 01:38 PM

Out of curiosity, what made you choose the Oly Pro over the Pany 7-14?


In Topic: A7III is here !!!

18 March 2018 - 07:12 PM

The one thing that kills the A7III for me is the 1.2x crop in 4K 30p. On that alone, I’d spring for the A7Riii or wait to see what the A7Siii brings.

In Topic: A7III is here !!!

18 March 2018 - 06:20 PM

To be honest, I don't see anything in the Sony A7 line that would recommend it for underwater video over a GH5, and the A7III doesn't change that. Great land camera, and I may end up picking one up for that reason, but underwater? Why?
 
Full frame is actually a liability underwater as far as I'm concerned -- it means having to shoot at higher apertures to get reasonably sharp corners, which negates any low light advantage full frame might have. Just take a look at the samples I and TaxiDiver posted above -- even at web resolutions, the corners of his shots are visibly soft, whereas I was shooting at F4 and getting perfectly sharp corners. (I've used the WWL-1 + Panasonic 15mmF1.7 lens combination as wide as F2 with good corner resolution). 
 
You also cannot set an accurate white balance without filters. Even with filters, the results will need tweaking in post to look good, and even then you can only take it so far. I suppose color is a matter of taste, but I wouldn't call TaxiDiver's samples particularly pleasing.
 
I've used an A7RII underwater for two years. Can you get good results with it? Yes, especially with lights. Would I go back after switching to the GH5? No way. There's not a single thing I miss about it as far as underwater video is concerned. It's definitely a better stills camera than the GH5 with the right lenses, and the shallow depth of field is nice when filming 'cinematic' people shots on land. But if your main focus is video, at this price point, I think the GH5/GH5s is a much more capable camera.  I'd only trade it for a Canon 1DXII (maybe -- the video files are very large because of the inefficient codec), Canon C200, or a RED.


Possibly the AF performance of the A7III/A7RIII might be a compelling reason for some over the GH5’s weaker AF.

When you used the 15mm on the GH5 with the WWL-1, what port did you use?