segal3
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Posts posted by segal3
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2) Two strobes about 6" strobe-to-subject (a little closer for the 10-o'clock positioning, fill at 2-o'clock?)
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Dealers - we understand that you are eager to help, but please keep commercial correspondence to PM only.
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By the same convention, can you set the camera at -2EV and the strobes to +2?
The fish has a very neat natural cross-processed colors look. Now get a dive buddy's reflection in the scales
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We received more photos of the wrecked boat from Pohnpei resident Michael J. Sipos - they've been posted on the front page.
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Wetpixel received an anonymous email with a rumor that Truk Lagoon's SS Thorfinn is wrecked in Pohnpei:
The Thorfin has an engine room filling up with water. It came into Pohnpei and loaded up 70,000 gallons of used oil from PUC and there were not enough pilots to have one come aboard on the way out. A pilot was on each of the two ships leading the way and the Thorfin was following the two lead ships and went on the reef yesterday.A tug boat from Adams helped keep it upright during the night but after the high tide at 3a.m.; it was not able to get it off the reef. Adams is standing by now with a barge to pump out the oil if called upon to do so. At this point there is not way to save the ship. It is about one mile from the dock and in my estimation will not hurt anything if it goes down where it is located at the moment.
Can anyone verify or provide additional information?
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If you really want to test your off-the-shelf choices, fill a pitcher with ice water and stick them in. I can't imagine any having trouble with the moderate temperature.
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I'm going to throw Flagtail Shrimpgoby Amblyeleotris yanoi out there
, even though the eyes are slightly off.It looks just like this one.
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I say flatworm
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I try not to have my sync-cord tightly wound around or pulled by anything - I would imagine that it can handle some bending (it is flexible!) a little better than constant tension...
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You mean you didn't jump in the water with it?
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Thanks all.
Arnon - That shot is actually normal sync (first-curtain) with a long shutter speed. I like it too, but a lot of people seem to dislike the black shadowing
.Dave - I was there on the 12th. The Peace didn't quite make it to Miguel.
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It will be wider because it's a fisheye lens, not a rectilinear one.
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I tend to have a healthy respect for fish with teeth like a barracuda that thinks nothing of defending its nest at all costs...but this one felt like posing
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'Rainbow Reef,' at Santa Rosa Island, is a beautiful Southern California pinnacle. It starts around 60ft, and the entirety is covered in life far into the depths. Due to variable conditions, it's rare to have more than one or two opportunities to dive the site - on this attempt, even without swell, strong winds created a surface current down to ~20ft. The depth is an additional issue; I spent the majority of the dive in 80-90ft, and time is limited
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Thankfully, the reef is just inside a protected no-take area - and it's apparent. Large and small fish abound, bold and territorial, unaccustomed to divers.
A few more photos at an updated Santa Rosa gallery (the first five). All taken with Tokina 10-17 fisheye.
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Good news if true
Bad news - single parent means decreased diversity among the species, and a greater susceptibility to diseases or similar.
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I still haven't got over the fact I couldn't take a 10x8 Sinar and 20,000 joules of flash with me underwater!Where there's a will, there's a way.
Oh...you don't want to be broke. Well, nevermind then
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Why can't you have both?
It mounts on full-frame cameras to provide a FOV greater than 180deg, and while it doesn't fill the frame entirely until ~15mm, there's always the option of cropping to reduce that wide, wide view (especially with the many megapixels of the Canon 1DsII). Not as practical, true, but ultimately still useful.
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We have a special request and a great opportunity for Wetpixel members. Do you shoot underwater with models? Do you want your name and quote in an issue of Sport Diver Magazine?
As of the current issue, Wetpixel & DivePhotoGuide have entered into a special partnership with Sport Diver. Eric Cheng and Jason Heller will be writing the "Images" column moving forward. We will be reaching out to members of both sites regularly for contributions that may make it to the pages of Sport Diver!
We are currently working on a column about "Shooting with Models." Send us your top tips and any great or horrible experiences that you've had shooting with models, and your quote and name may appear in an upcoming "Images" column of Sport Diver Magazine.
Only catch is that we need this info by tomorrow (ASAP!). We apologize for the late notice. Anything you send will be considered and much appreciated!
If you are interested, please email a few sentences directly to Jason@divephotoguide.com.
Thanks!
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I'd like to see how much vignetting we get with the 1.3 chip.I imagine it'll look something like setting the lens at 13mm on FF
.Source: Tokina 10-17 on 5D
A few people have taken to shaving the lens to remove the shade. One estimate places the FOV (in certain areas of the frame) over 190deg when used with FF cameras.
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For a real-world example...
Source: The-Digital-Picture.com - Canon EF 180mm f/3.5 L USM Macro Lens Review
The focal length also affects other macro photography aspects. Longer focal lengths require more distance to acquire the same subject framing. The result is a change of perspective - the telephotos compress/flatten the subject features more than short focal lengths. The wider angle of view of the short focal length macro lenses mean that more of the background will be in the picture - and that the background will be less-diffusely blurred. Picture what I am talking about ...
The pictures above were taken with three macro lenses (180mm L, 100mm and 60mm). They are identically framed using the same aperture setting (f/16) and have identical subject to background distances. DOF (Depth of Field) is not different (same framing, same aperture = same DOF until closer to the hyper-focal distance), but perspective/compression and angle of view are very different.
The 180mm lens shows only a small physical area of background subject that is compressed/enlarged to magnify the blur. Background subjects in the 60mm picture appear to be more in focus. They are not - they are just about as blurred, but they appear much smaller in the picture - and there are more of them because of the 60mm's angle of view. This gives a less diffuse looking background blur. If you are using a backdrop (such as rolled paper), the background blur aspect might not be important to you. It is easier to find a pleasing background for a 180mm macro picture because there is less background in an identically-framed shot.
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I can weigh in quickly.
Regarding question 2 - In macro work, for a given magnification (size of subject in the viewfinder) and aperture (f-stop), the depth of field is the same, regardless of the lens (of course, assuming the same camera, etc). However, the field of view will be different for each lens.
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Hi Fletcher -
Due to the technical issues, the Under the Blue 2007 competition deadline has been extended to 11:59pm (Pacific Time), May 16, 2007. Please let us know if there are additional problems.
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What species of abalone is that in the first series of photos?
Let there be light!
in Lights, Strobes, and Lighting Technique
Posted
Was there a reason they moved to the split-battery design? I seem to remember it formerly being a single-arm shape...