philosophy

Put a Little Tech in Your Life

Posted on by in philosophy, underwatermacro and tagged , , , , .

Lately I’ve been toying with the idea of what some entry-level tech diving skills do to help you take better macro photos.

Trim and Buoyancy Skills. Macro photographers spend a lot of time sitting right on the bottom or just above it and movement of several millimeters can ruin your shot. Trim for any diving should be perfectly horizontal.

Breathing Rate and Gas Planning. If you’re doing macro dives, start keeping track of your Surface Air Consumption (SAC, or sometimes called “Surface *Gas* Consumption”) and Respiratory Minute Volume (RMV). Better air consumption means longer dives which means more photos. Knowing your averages and how to use them also means better dive planning. Better gas planning means longer dives but safer because you know where the limits are. You can also do rock bottom calculation… as you descend, keep track of your gas usage getting to the bottom and use that plus a gas reserve as your limit to begin your ascent. Macro divers usually have the square dive profile (down, stay at the same depth, come up) that works well with this method.

Movement. A handful of tech diving propulsion techniques will make your macro diving life so much easier.

  • Frog Kick. Used by tech divers because it doesn’t kick up the silt inside of caves and wrecks: the fins push water upwards and back, not down. On a macro dive, this also means that you don’t cause a lot of backscatter for yourself or others.
  • Modified Flutter. Knees bent, fins high, and little kicks front and back at the knees.
  • Reverse Frog. Can help you back up on a subject if you get too close.
  • Helicopter Turn. Frog kick on one side, reverse frog kick on the other. Helps you to spin around like a helicopter to get a better angle on the subject without moving forward or backward.

Gear. This goes into a bunch of different points.

  • Some of the principles of Hogarthian diving rigs–used in various brand types and levels of strictness–make a lot of sense for macro divers: backplate and wings for perfect trim, simplified and reliable gear, etc.
  • You shouldn’t have any dangling gear to catch on the bottom. Since we’re close to the bottom most of the time, this is a big safety issue for yourself and for the animals on the bottom.
  • Jet-style fins (I have 2 pairs of Apeks RK3 in different sizes for wet and dry diving) make frog kicking and repositioning easier.
  • Thigh pockets for backup torches. Photography is all about light, and backup video torches can make the difference between improvising a lighting studio and aborting a photo dive.
  • Solo Diving Gear. Redundant air supply, spare mask, and a couple of cutting devices. You have to be able to fix problems by yourself because buddies aren’t close enough to get to you in a timely manner.
  • Slung stage cylinder for redundant air supply.

Self-Sufficiency. Being self-sufficient in a diving sense means that you can solve diving problems underwater by yourself. You become a “Self-Rescuing Princess”, as I refer to myself sometimes.

 

 

See you underwater!!!

–Mike

On Solo Diving

Posted on by in philosophy, underwatermacro.

I think it’s time we all face up to a an unpopular fact. Macro divers are solo divers, and it’s time that we start acting like it. In Singapore, almost all of us are solo, low-visibility divers in dive sites next to shipping lanes. The only saving grace is that most of the time we’re at 12 m or less deep and can do a CESA if we have an air supply problem.

Nobody else is going to be your dive buddy when you spend 30 minutes trying to coach a 5mm glass shrimp into focus. Even if your dive buddy is a macro photographer themselves, that just means that both of you will end up absorbed in taking pictures and completely unaware of what is going on with the other diver. You’re not really doing the job of supporting each other if one of you has an emergency. You just happen to be “same ocean same time” dive buddies which isn’t really dive buddies.

And then there is the problem of diving with other divers when you want to do macro. Even in a well-meaning group, you can’t really take any good macro photos while you’re trying to keep up with everybody else. You get frustrated and take along wide-angle gear on the next dive. In short: it’s impossible to do underwater macro photography with other divers unless they understand that the point of the dive is to not swim anywhere.

Now it’s not that I’m trying to give anybody a “guilt-trip” or say that you should stop doing macro dives. In fact, just the opposite. DIVE MOAR!!! What I’m saying is that all macro diving is solo diving and that our style of diving involves a higher level of risk and some additional training, gear, and techniques to deal with that risk.

It’s not just me, the dive training agencies and magazines have some thoughts on solo diving, although it’s a bit bipolar sometimes:

With all of this in mind, back in November/December I went through the SDI Solo Diver class with Dive Zone Tokyo. It’s more about the theory: better air management, solo navigation, risk assessment, risk mitigation, and understanding what and why you’re doing something. The knowledge was pretty good (although I harbor a humorous theory that it’s a gateway drug for tech diving), and then my practical application was to go on a drysuit solo macro photography dive. That was cool. I got dropped off at 12 meters near the entry point and hunted subjects through the boulder field while the rest of the group beelined out to the soft coral. Later on, I tried to find the blue-tipped pikachu nudibranch in the inner bay and almost got to the spot but spent too much air searching and had to come up to the surface.

Even if you don’t want to go the certification route, you should start carrying the gear to survive a solo diver emergency and know how to use it:

  • Spare air supply
  • Cutting device
  • Spare mask
  • Compass
  • SMB

Shrimp from my first official solo dive in Osezaki, Izu Penninsula, Japan:

And me on the same dive:

See you underwater!!

–Mike