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Undertow

Member Since 05 Dec 2006
Offline Last Active Oct 19 2018 09:55 PM
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Posts I've Made

In Topic: Cheap option beetwen d200,lx5 or even d750

13 October 2018 - 11:29 AM

Diving is generally presented as fairly easy and safe. In a way it is both.

 

But people often forget that you're completely dependent on both your equipment and skills to survive. If either of those fail, you can die very quickly and easily.

 

Photography, especially with a big heavy SLR rig, adds a serious level of complexity to diving in multiple ways. 


In Topic: Cheap option beetwen d200,lx5 or even d750

13 October 2018 - 11:20 AM

I'd urge you to seriously reconsider starting UW photography as a beginner diver. You need excellent dive skills to even have a hope of safely pursuing photography UW. Its surprisingly difficult compared to shooting on land.
 
Please spend some time diving first before trying to shoot photos. I cannot stress this enough. 
 
That being said, there's also a huge difference between shooting with an big heavy SLR rig and a small point-n-shoot camera. SLR rigs are very awkward to handle in the water - all it would do as a beginner diver is to make diving much more frustrating and dangerous to you and your buddies. 
 
Cheers,
 
Chris

In Topic: DIY fiber optic writeup with parts

06 October 2018 - 03:07 PM

Sharp wire cutters. Just flame polish the end after. Super easy. 


In Topic: Help: Strange circles in pictures

25 September 2018 - 08:29 AM

Thats interesting that you say blue water pictures. Do you mean as general dive pictures or where you are on shallow depth and shooting whale sharks/whales?

 

I mean open ocean images - where you're shooting into the endless blue. I've seen some weird things happen, especially in post processing trying to add contrast. 

 

Yes generally from a shallow depth as I do most of this stuff freediving. 


In Topic: Help: Strange circles in pictures

18 September 2018 - 10:45 PM

I shoot a lot, including tons of blue water whale images and I've never seen a reflection like that. Reflections come from sunlight hitting the front of the lens and reflecting in the dome port. You only ever see a section of the lens, not an entire circle. You'd have to shoot with the sun dead center in the frame for that to be possible. 

 

I'd agree with troporobo - my best guess is post processing artifacts. It happens with blue water images quite easily.