Canon g12 video

[Bali Diver]

Hi there,can you please let me know what you think of G12 video underwater quality and colours,from i can see you cannot change any settings when using underwater.like w/b etc... so what is the colours like when filming under 15m.Is there any lenses which you can use which make things much better.I have WP-DC34 housing.thanks for any advice.

 

[azscubadude]

Hi there,can you please let me know what you think of G12 video underwater quality and colours,from i can see you cannot change any settings when using underwater.like w/b etc... so what is the colours like when filming under 15m.Is there any lenses which you can use which make things much better.I have WP-DC34 housing.thanks for any advice.

Here are a few videos taken with the G12 in an Ikelite housing all shot in Cozumel over a few trips. Nothing special but will give you an idea under different conditions.

First video ever shot with G12. No lights. Red filter (for blue water). Shot at widest an lens zoom. Just took it along to video some friends shooting photos.

First Video-using red filter

This is a VERY short clip (I always forget about the video when diving, should do more). Deep wall dive, probably 80-90 feet. The divers were a good distance in front of me.

Wall Dive Video-no filter

Here is one shot during some shore dives in 20 feet of water. Daytime and night dives. One eel and hermit crab were night dives with lights. There are a few small clips from daytime thrown in but I think you will be able to see where the lights are used.

Night Dive Video-no red filter

Since you can't set up any real lighting on your housing the best thing you can do is get a Red Filter (wet lens). Not very expensive, here is a link to what I'm talking about.

Amazon.com: Fantasea RedEye Filter G10 - Underwater Red Filter for Canon WPDC28 Housing for G10 camera, and WPDC34 Housing for G11/G12 Cameras: Camera & Photo

Hope this helps a little. I plan on doing more video on my next trip, especially on drift dives where you can't stop and shoot photos. I'm sure other will chime in as well.

 

[Bali Diver]

Thanks azscubadude,nice video, for sure below15m red filter needed,where does filter fit. above 15m in the shallows i am wondering how the colours are or any filter to help due to not being able to use any setting

 

[azscubadude]

Thanks azscubadude,nice video, for sure below15m red filter needed,where does filter fit. above 15m in the shallows i am wondering how the colours are or any filter to help due to not being able to use any setting

Below is a chart showing why the red filter is needed even in very shallow water.

a quote, ^{"At a depth of 5m water lets through up to 45% of the blue sector of the spectrum, at the same time absorbing up to 60% of the red sector."}

This is far less than the 15m you mentioned. Even a very shallow shore dive would benefit from the filter, but, the deeper you go the less effect it will have on the red and you will notice that the oranges and yellows will be lost and then come back before the red does as you descend and ascend. But it does help and I think worth the cost especially in shallow waters.

The filter is what is called a "wet lens" or wet filter. It just slips on the front of the port and can be put on or taken off underwater. They usually come with a place to attach a lanyard, or you can slip it in your BCD pocket but it then stands more of a chance of getting scratched. Most of the wet lens filters (they make one for green water and blue water) are just plastic. The screw on ones (like regular lens filters) are usually glass.

 

[Bali Diver]

That's interesting azscubadude as i never heard that before using a red filter in the shallows.less than 15m,let alone as shallow as 5m

 

[azscubadude]

That's interesting azscubadude as i never heard that before using a red filter in the shallows.less than 15m,let alone as shallow as 5m

Here is the link to the whole article if you want to read it.. The Physics of Diving - Light & Vision

What I quoted from is all the way at the bottom of the page but there is also an interesting section on Light Absorption about 2/3 of the way down, before you get to the "Colors Underwater" paragraph that I quoted from.

 

[Bali Diver]

Here is the link to the whole article if you want to read it.. The Physics of Diving - Light & Vision

What I quoted from is all the way at the bottom of the page but there is also an interesting section on Light Absorption about 2/3 of the way down, before you get to the "Colors Underwater" paragraph that I quoted from.

That was a interesting read