Lens correction filters for cold/green water, kindly ask for help

Hi,

I'm owner canon 50d + canon 17-85 lense to uderwater photo I have Ikelite house 6870.50 + dome port 5503.90. I'm diving usually in cold green water in Poland and I have question about correction filters:

What model, brand filter should I buy? Dedicated Ikelite or maybe other brands are better?

Hi bigmaras

Take a look at Magic Filters http://www.magic-filters.com

Reasonably inexpensive as uw equipment goes and can be used without a strobe.

Hi bigmaras

 

Take a look at Magic Filters http://www.magic-filters.com

 

Reasonably inexpensive as uw equipment goes and can be used without a strobe.

They have "GreenWater Magic filter" for diving in cold/green waters but I don't see canon 17-85 in the compatibility table, so probably my lense is incompatible :]

I believe the filter thread for the 17-85 is 67mm. Just get the next size up (77mm) and trim it size with some scissors.

I believe the filter thread for the 17-85 is 67mm. Just get the next size up (77mm) and trim it size with some scissors.

Bigger size and cut by scissors, is it joke?

BTW. I ordered Kenko 67 flw.

No, we're not kidding!

They're made of a gel-type material and you can cut them to any size. So if you need 67mm - or whatever - and that size is not available, you can order a bugger size, cut them and then mount in a, say 67mm filter UV filter.

It may sound a bit weird, but, believe us, it works no problem. It's, as I said, an easy and relatively inexpensive solution.

I've used the Green Water Magic filter a lot and they work incredibly well.

Two points:

1. You need to manually white balance with them. If your subject changes depth by more than 2m or so, you need to re-white balance.

2. You need to shoot at a slight downward angle. If you get to much ambient light from the surface, this produces a color cast.

In terms of mounting, I tend to get a small piece of the filter and stick it onto the rear end of the lens with some tape as they demonstrate with the Tokina 10-17mm here: http://www.magic-filters.com/tokina.html

In cold green water, with this filter, you can actually extract more detail from a scene than your eyes can make out....

Adam