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Olympus C7070W plus Ikelite housing


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#1 Rowec

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Posted 04 July 2005 - 09:45 AM

I have just bought an OlyC7070W and Ikelite housing and am having problems with focusing. Here in South Africa we experience a lot of surge and focusing is a problem in particular when using one hand for the camera. The tendancy is to press through the focus point. Does anyone have any advice. Is there a modification for the housing (Ike)?

#2 Rowec

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Posted 15 July 2005 - 08:51 AM

Doesn't anybody have anything to say about this or does nobody have this problem/camera?

#3 dmoss

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Posted 15 July 2005 - 09:49 AM

The problem you are having is inherent with the type of camera you have. My 5060 is the same way. The autofocus is slower than a DSLR and in surge the camera is having difficulty locking focus because you are moving around. Pressing thru before you have focus lock will just result in out of focus images. You indicated you are using one hand on the camera. Assuming you are using the other hand to hold onto something to stabilize yourself, try to focus on an area of your subject that has contrast. That will help get a quicker lock. Don't know of any modifications to your housing that will eliminate the effects of surge...unless it was an anchor. :D
Hope this helps.
David
Canon 5D, Ikelite


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#4 Peter Schulz

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Posted 15 July 2005 - 01:13 PM

Manual focus might work.

If you shoot at about the same distances, and if you use wide angle with the Ikelite dome port, you might find a focus distance that you can manually set and forget.

For samples of pictures using this technique with the 5050, see the following.

http://www.splashdow...ry_d/frames.htm
Nikon D70 with Nikkor 10.5, 18-70, 60mm & Sigma 15mm lenses in Ikelite housing with 2 Ikelite DS 125s.
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#5 Rowec

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Posted 20 July 2005 - 08:20 AM

The main problem is that the tendency push the shutter through the green light which indicates focus is achieved no matter whether the subject has a lot of contrast or not.