Wide angle lens

[Col_CCC]

Hello

Is a .5x better than a .7x in most shooting underwater. Is it better or worse to use a .5x in low light/night dives.

Thanks
Chris

 

[ChrisA]

Is a .5x better than a .7x in most shooting underwater.

It may depend on the camera. My camer will not go as wide as most others. Even when I use it indoors I find myself trying to back up through walls.

Also it depends on the water. If the viz is poor you ned to get close, Like 18 inches or closer. A wider lens lets you get closer to a subject

I have a flat port on my housing. The flat plate magnities just like a dive mask. I thing it is 25%. You would need a .7x lens just to counter the effect of the flat port.

I think a _good_ .5x lens cost more then a good .7x lens

At night the closer you get the less light you need.

Watch that a .5x lens works with your ousing. You don't really want to see the inside of the housing in the corners of the image

I use a .7x lens on a trv33, fat port in So Cal water with vix typically 10 to 30 feet
I will shoot subject from 12 inches to 8 feet if the viz allows

 

[Col_CCC]

Thankyou for the reply. At least someone had some input on the subject. The housing is an Equinox for the Canon GL2. I don't have it yet but I was looking for some information before I bought. The dive lights I will be using are two UK Light Canon 100 HID's. The waters I dive in mostly are Southern Ontario Great Lakes. But next year we are venturing to Truk Lagoon.

Thankyou again for your input, it is greatly appritiated.

Chris

 

[ronrosa]

Wide angle is great for large fish/creatures, wrecks or scenery shots. You may find that medium and small creatures won't let you get too close. In thoses cases a W/A lens is not your best choice.

On night dives, W/A can be tough too since you need more light to fill the frame.