Archive for the ‘photos’ Category

6/52: smoke photos + new DIY collapsible softbox

Posted at 7:52 pm in 52things, gear, photography, photos

This week, I worked on two photography projects for 52 things: smoke photos, and a new DIY softbox for one of my flashes.

Part 1: smoke photos

smoke: blue on black

After I made my new macro photo box, I started thinking about projects that it would work well for. I’ve done some water photos before (though none that I really loved), but what captured my imagination this week was the idea of photographing smoke.

I set up the macro box, put my Vivitar 283 flash on a boom stand, set my camera up on the tripod, and got out a stick of incense. After taking a few shots, I soon realized that the pure white background of the macro box was not working at all – the smoke just didn’t show up against the white at all. I then tried a black background – here’s an example:

smoke photo (attempt 1 example)

After not much success with that, I decided to see how others had approached this subject matter, and found an excellent article on the subject:

http://www.sensitivelight.com/smoke2/

I realized that I was letting far too much light from my flash onto the black background, and as a result it was washing it out. I adjusted the box so the flash was completely flagged off from the background. Here’s what it looks like (the lighter is there so I could focus on it – autofocus is useless with smoke, so I used it to set focus, then shifted over slightly so it was out of the frame).

smoke photos: setup (detail)

Once I popped a test shot, my jaw dropped.

smoke: blue on black

I shot a number of smoke pictures, and with only a little cleanup in Photoshop, I was completely happy with the results.

View the complete set of smoke photos via Flickr.

Part 2: collapsible DIY softbox for Vivitar 283 flash

I also started thinking about my softbox situation. I made a small DIY softbox for the Vivitar 283 a while back, but it had two distinct disadvantages: it wasn’t very easy to stick in a bag, and the front diffuser material was tissue paper, which is quite delicate. I therefore decided to solve both of those problems with a new, slightly larger softbox that would fold up for transport.

As a technology teacher, I made myself sit down and think about this as a design problem, sketching out some requirements and a 3-view drawing.

DIY collapsible softbox
DIY collapsible softbox

Once my design was set, I got out materials and started construction.

DIY collapsible softbox
DIY collapsible softbox
DIY collapsible softbox
DIY collapsible softbox

It’s not quite done yet, as I have yet to finalize the front diffuser panel, but I have some white shower curtain material that I think is going to work great. Once it’s finished I should be able to use it quite a bit since it will fit in my laptop bag, making it easily portable.

DIY collapsible softbox

View the complete set of DIY softbox photos via Flickr.

Written by Bill Van Loo on February 5th, 2010

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4/52 – new Strobist macro lightbox plus DIY photography gear roundup

Posted at 11:00 am in 52things, photos

A few years ago, I saw an article on the excellent Strobist site, describing how you could build a cheap, easy macro studio in a box – the $10 Macro Photo Studio. I went ahead and built one, and it looked like this:

new Strobist $10 macro lightbox

It was quite decent, but unfortunately got destroyed because it was too delicate and I never had a good place to store it (where do you stick a big, delicate box that’s mostly comprised of tissue paper?).

I therefore decided to build a new one for this week’s 52 things entry, making a few modifications along the way. I used the same idea as the original Strobist article, but made a few important changes. First off, I decided it would have to be collapsible, to prevent the issue I’d run into with the first one. As you can see below, this is what it looks like when unfolded:
new Macro lightbox: unfolded

The sides are held together at the top and bottom with Velcro strips that allow it to be quickly assembled or broken down:
new Macro lightbox: corner detail

Here’s what it looks like all assembled:
new Macro lightbox: setup shot

I shot a number of test shots using two flashes: a Sunpak 322s on one side, and a Vivitar 283 on the other side, and got excellent diffused light with minimal shadows, like this one of my son’s Bionicle invention (he’s got a bunch of Bionicles made to his own designs, using parts from the kits he has; check out his own site to see more of what he’s up to):
Macro lightbox test: Bionicle

Unfortunately, the Sunpak died right at the end of my first test session, and I’m not sure why (it seems to get a charge, but the flash never fires). That means I’m down to one flash, the Vivitar 283. It works well enough, though, as you can see from today’s photos.

I decided to use this as a chance to do a roundup of some of the DIY photo gear I’ve made over the past year or two.

This is a DIY mic stand to tripod stud adapter. I have a number of mic stands in my studio, including a couple boom stands, but only one tripod. That makes it difficult to place my flash, cameras, etc depending on the situation (for my recent chromedecay behind the scenes video, for example, I used an overhead camera shooting down, mounted on a boom stand with this adapter).

Macro lightbox test: DIY microphone stand to tripod stud adapter

It’s just a metal stud that came with my mic stands, drilled out to allow a 1/4 x 20 bolt (the standard for tripod-mounted camera gear) to be passed through. A wing nut and washer allow it to be tightened onto whatever it’s holding.

I love these cheap clamps from Home Depot, and when you take the cushion off one of the arms, there’s a perfect spot to pass a 1/4 x 20 bolt through. That means it can be used either as a clamped tripod mount, or as a clamp on the end of a mic stand.

Panasonic Lumix DMC-FZ18 on DIY superclamp

Macro lightbox test: DIY boom clamp

Finally, here’s a homemade diffuser (the “salsa bottle diffuser”) whose origins you can easily guess:
Macro lightbox test: DIY diffuser

It slips over the end of the Vivitar and diffuses the light nicely.
Check out my Flickr set for more photos of the new Macro lightbox in action, and more DIY photo/video gear.

Written by Bill Van Loo on January 22nd, 2010

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