Articles and Information

Underwater photography articles

Starting out
A brief guide to setting you camera
Housing & camera care
Underwater connector identification

Lighting & Colour


Natural vs. artificial light
Artificial lighting techniques
IP Ratings
Japanese O-rings
Photoflash fundamentals
TTL flash connections


Optics and Imaging

LCD magnifiers
Ports & lenses
Computer lens correction
Pixels & resolution
Resolution Comparisons
Image formats
Refraction & Snell's law
Angle of coverage
Flat port theory
Dome port theory
Flat port vs. dome port
Polarisation of light


Lens tests

35M67 converter comparison 
Epoque DCL-20 (35M67) 
Epoque DCL-30 (28M67) 
Inon UFL-165 35AD 
Inon UWL-100 32M67 
Inon UWL-100 28AD 
Inon UWL-H100 (28LD and 28M67) 
Olympus PTWC-01 (28M67) 

Compact cameras tests
Canon S100


General interest

Nikonos Nikonos history & information

Museum pieces
Lomo Crab camera housing with Heinke Merlin IV SCUBA.