Life In The Seas Brain Coral

 

 

HomeGalleriesAbout George PerinaContactBuy ImagesGuide to Underwater Photography

   
     Digital Photography Basics
 
     Film vs. Digital
 
     Underwater Photography
 
     Underwater Housings
 
     Underwater Strobes
 
     Lenses
 
     50/50 Photography
 
     Tips and Tricks
 
     Care & Maintenance
 
     Suggested Reading
 
     Recommended Software
 
     My Equipment
 
     Useful Links
 

Tips and Tricks:
 

Tip 4: Care and Maintenance (continued)
Make sure you have your equipment serviced by a professional outlet and according to the manufacturer's guidelines every year. Reputable service outlets will check all the working parts, grease and replace o-rings if necessary, and pressure test the system. 

Tip 5. Know the Guide Number of Your Strobe
Many readers might wonder why I'm even including this at all.  The concept of guide numbers is based on manual flash control, and setting the aperture of your camera.  The reason is simple: I believe in trying to keep diving and underwater photography as simple as possible.

Too often I've witnessed sophisticated and expensive electronic equipment failing over something as frustratingly simple as a 50-cent component that goes bad. When sophisticated technology fails, it's nice to have a simple backup that won't fail you, one that doesn't rely on technology at all.

At first, the concept of guide numbers seems antiquated, even difficult to master ("You have to do math in your head? --while underwater?!") But after you've practiced with it a bit, guide numbers are really easy. And since it's only one number that you have to remember for each film/ISO combination, you avoid Murphy's Law with respect to sophisticated technology.

 

 

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