I'm heading off to do some wreck shooting in Truk with the D3 and Sigma 15mm FE soon, and I have some questions. I searched through the forums to see if some of this has already been addressed. I don't see anything so far, so I'll go ahead and ask:
- On a sunny day (and near the middle of the day), what's a rough max depth at which this thing will still be useful? Some of the wrecks are quite deep (200ft), and I assume I shouldn't even try for those, but I'm not sure what a reasonable cut-off point is.
- If it's cloudy (or early/late in the day), should I just mount the strobes and forget about the filter (leave it off for the dive)?
- Am I likely to run into issues attempting to manually white balance at depth? I tried some white balancing off of a gray card in the murky Lembeh waters and had a lot of problems in anything deeper than 20ft.
- If I go ahead and take the strobes on some dives and use them for some interior shots (with filter), will I likely be able to fix up the white balance issues in NX after the fact or is it hopeless? I can obviously take a gray card shot as a reference, but I"m not sure that's enough...
- Are there reasonable tests I can do with the filter over the next few weekends in the greenish dark California waters? I'm not worried about ending up with keepers, just about getting some experience with the filter before going on the trip.
Hi Liz,
For wrecks I use the filters down to about 18m. Although the best colours come at about 15m. I have seen many photos taken with them in Truk - and they work particularly well on the shallower wrecks. It is worth quizzing the guides as to the exact depths - not the seabed depth, but the depth of the exact features of the wreck. For example the Giannis D wreck in Egypt, that is on the Magic Filters website as the mouse over animation:
http://www.magic-filters.com/magicindex.html
is actually in 23m of water - but the photos are taken from about 15m or so of depth.
With the D3 there is less of a need to worry about it being cloudy because the camera is so good at high ISO. Actually flat light can be quite beneficial for filter photography (as long as you have good high ISO performance) as it opens up more shooting directions. That said, strong, directional sunlight, coming right over your shoulder, is the best for really bringing out the colours and details in a subject. An big advantage of your camera is being able to do filter shots early and late in the day, when the intensity is less, but there is good direction on the light, particularly in the shallows.
I have not shot the original Magic Filter with the D3. But on the D700 I had no problems. As it says in the vid, make sure that the WB target is illuminated by direct sunlight. Actually you can use the White Balance memory bank on the D3 to store several WB settings for different depths (these can also be labelled through the menus) and you could keep them as a reserve, if for some reason you cannot get a setting. The other reason why a camera cannot set WB is because you are underexposing the target. Stick it on P to set the white balance! This catches a few people out.
You should be able to get something reasonable out of strobe shots with the filter. It is not an idea way to shoot, but it is understandable if a wreck has a particular feature you want to shoot with strobes and then the rest of the dive requires filters. Mike V showed examples of this in his original Wetpixel review:
http://wetpixel.com/i.php/full/magic-filter-review/
But ideally you would want to dedicate one dive to strobes and one to filters.
Although I have shot the D3 in California, I have not tried the filters. But I'd encourage you to give them a go. Trying the filters in CA will be beneficial in helping you get used to reading the light and setting WB Etc. This post gives you a flavour of what you might expect to get:
http://wetpixel.com/forums/index.php?showtopic=27507&hl
Hope that this helps
Alex