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bluespot

Member Since 12 Jan 2007
Offline Last Active Mar 19 2013 06:40 PM
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Posts I've Made

In Topic: G9/Ikelite with Inon Lenses Question

18 August 2008 - 08:12 PM

Thanks for the replies! I just wanted to make sure I wasn't missing anything...

In Topic: Underwater Mode - Hit or Miss?

06 August 2008 - 08:03 PM

Hi guys,

I have a Canon Powershot A610 and, for the majority of the time, I use the UW scene mode (which combines UW white balance with a slightly higher ISO than the auto mode, I think). I find it extremely effective to 30 feet. A lot of sunlight seems to help as well, unless it's just coincidence. Deeper than 30, there's too much blue, but a strobe corrects that issue. I've never compared it myself to other models, but I've seen similar results with the A620.

I'd definitely be interested in hearing about this feature on other cameras as well. Thanks for the posts!

In Topic: South and North Sulawesi trip report

30 December 2007 - 05:39 PM

Thanks so much for sharing your blog and incredible pictures. Very inspiring!

In Topic: Canon Powershot A610 and SL960D strobe???

19 October 2007 - 05:38 PM

All digital cameras now have a preflash. The preflash, as I understand it, is the invisible pulse sent out by the camera to determine the amount of light needed to properly expose the subject. Its sends out the pulse and then reads the reflected pulse off the subject. So, if you have a non-digital strobe that only fires on the first detection of light, it will misfire or not be synced up with the shutter in the digital camera.
The 960D should work fine with your camera as will other digital strobes. These digital strobes have a setting that ignores the preflash and fires with the main strobe. There will be no TTL or auto exposure but you can manually set the output on the back of the strobe.



Thanks very much for the explanation - now I finally understand what I've been reading!

All digital cameras now have a preflash. The preflash, as I understand it, is the invisible pulse sent out by the camera to determine the amount of light needed to properly expose the subject. Its sends out the pulse and then reads the reflected pulse off the subject. So, if you have a non-digital strobe that only fires on the first detection of light, it will misfire or not be synced up with the shutter in the digital camera.
The 960D should work fine with your camera as will other digital strobes. These digital strobes have a setting that ignores the preflash and fires with the main strobe. There will be no TTL or auto exposure but you can manually set the output on the back of the strobe.



Thanks very much for the explanation - now I finally understand what I've been reading!

In Topic: Your best shot of 2007 (deadline: early Oct)

04 October 2007 - 07:21 PM

Wow, there are a lot of amazing pictures! I thought I'd submit my faves anyway. All pictures are taken with a Canon Powershot A610 on a trip to Belize this past February.

The first picture is of an overly curious and friendly yellowtail snapper that kept inadvertently getting in my pictures - finally I gave him the attention he was wanting and took his picture!

The other two pictures are of the amazing Hol Chan Marine Reserve that hosts an abundance of marine life. In the last photo, I was just trying to capture the reefscape when the huge Southern stingray suddenly entered my line of vision and swam straight toward me.

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