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Tuesday, November 9, 2021

How to turn a dishpan and cake dish into a monster DIY studio light

    If you are looking for a way to really light up what you are shooting, you might want to take a trip to the kitchen aisle of the local store.

    Griffin Hammond, of Indy Mogul fame, did this video showing his plans for a DIY studio light that had the output of the equivalent of 13 60-watt incandescent light bulbs. While the video is about nine years old, his idea is still a good one.

    His light uses a deep plastic dishpan for a reflector around the lights, which are in socket splitters in four light sockets, with the cake pan serving as the electrical box for the rig.

    Griffin's rig uses eight 100-watt-equivalent CFL bulbs, but LED bulbs should work just as well. He estimated the cost of the rig at $85, but it's not a bad price if you compare it to a commercial rig with similar output.

    You can also lower that price point by purchasing some of the supplies at your local dollar store instead of the big box stores. You'll probably still need to go to the hardware store for the lighting rigs.

    Griffin's rig requires some knowledge of electrical wiring, and his video doesn't clearly show the wiring pattern. If you'd rather not bother with making your own electrical circuits, some of the commenters on the video suggested using a power strip with plug-in light sockets, simplifying that part of the project.

    I would probably paint the outside of the pan black, giving it a better appearance as well as minimizing light spill.

    From his video, it looks like a great option if you're shooting video or prefer to use continuous lighting in your photo studio.



Tuesday, October 26, 2021

Getting close to eliminate reflections

    There are times when you want a reflection in you picture for artistic purposes, but there are more than a few times when it's a pain in the tuchus.

    This usually happens when what you're photographing is behind glass, such as in a display case, you're looking out a window or standing on top of the Space Needle in Seattle, where even on the outdoor deck you're behind glass.

    Some ways to get rid of the reflection, if it's ruining your composition, include changing your angle so the reflection isn't going straight into your camera lens (angle of incidence = angle of reflection) or using a polarizing filter.

    The only drawbacks with those methods is you might be limited in moving to the sides, and the light may be at the wrong angle for a polarizer, which works best when the light's coming from a right angle.

    While reflections can be eliminated in post (I had to do that with a picture I took of a stained glass window in a museum), that can be extra work you wouldn't need to do if you can eliminate the reflection before you trip the shutter.

    But Jefferson Graham, a writer/photographer/Youtuber, suggests getting right up against the glass.

    It's not a bad strategy, as you are blocking the light causing the reflection from your lens.

    (Do not try this tip with a museum display case. You may either knock over the display or set off an alarm.)

    The only thing I take issue with him on this matter is his suggestion that this option only works with phone cameras, as they typically have a flat lens. A DSLR, he argues, has a curved lens and can't be put in such contact.

    To which I call shenanigans.

    First, most of us use UV or skylight filters on the front of our lenses to protect them from damage, so we do have a "flat" surface to put against the glass.

    Second, a lens hood also provides the shading that can keep the stray light from messing up your photo. It works especially well if you have a collapsible rubber hood. Just make sure the hood is right for your focal length or you'll get vignetting.

    Another option to have a friend hold a jacket up behind you to block anything behind you from being reflected in the window. Just make sure they hold it in front of them, so you don't get their reflection in the window instead.


Tuesday, October 12, 2021

Get the U.S. Post Office to deliver softer light from your flash unit

    In our last post, we talked about using a modifier to bounce your flash and soften its light.

    If you're using your flash in an off-camera studio setup, you might want to use something a bit more heavy duty to soften that light from the flash.

    A flash is what's known as a "hard" light. It's a bright, small, directional light source that can produce a harsh light and crisp shadows, even if you use it off the camera.

    A softbox increases the size of the light source, which softens the light, especially when combined with a diffuser in the front. It creates a more pleasing effect, especially when you're doing portrait work.

    There are commercial options for speedlight-sized softboxes, but they start at about $17, and go up from there.

    But for the same price, you could make several soft boxes, varying the sizes based on the size of your flash and how much diffusion you want.


    This particular design is made from duct tape, aluminum foil, either wax paper or cooking parchment, and a post office shipping box.

    While this softbox is not collapsible, it is more for either in studio or if you're taking it to a staged location shot.

    While any cardboard will do to make the box, I chose to use a priority mail box for my build, inspired by my maker son who uses those boxes to make carrying cases for books. I found it's a good material for this type of project:

    • It is a more sturdy cardboard than you find with some other boxes.
    • The boxes are free at the post office. (You only pay when you actually ship something in it.)

    I figured out the size I wanted for the diffuser at the end, and then measured out on the cardboard from that width, angling the size lines down to the aperture where the flash unit goes, and cut the pieces.

 
    The next step is to put a reflective material on the inside part of the box, to increase the flash's power, especially since the light is going to be diffused. You can paint it white, but I chose to use aluminum foil, shiny side out. I used a glue stick to attack the foil, but I think in future builds I might go with a spray adhesive.


    I found that duct tape was the best way to join the sides together. I used black to give it a more finished look. For the diffuser panel, I used wax paper, but I also did a later one with cooking parchment, which has a greater diffusion but costs you one stop in light.
 
    It just slips over the front of the flash, and at this size works best when the flash is mounted on either a light stand or  a tripod, although you can scale it down to fit on a camera-mounted flash.

    So, what do the pictures look like? I thought you'd never ask.

    First, here's without the box.

    As you can see, the light appears harsh, and the shadow has a crisp appearance.

    Now, with the first box I built, which is about a 10x10.

    You can see the softening in the shadows, where there's now an actual penumbra rather than a hard edge.

    Here's a smaller version I made.

    This one didn't soften the light as much, as it was a smaller box, but it's also about 2 meters from the subject.

    Finally, I made a larger, shallower box, and used parchment instead of wax paper.


    This one produced a softer light, but I also had to increase the flash power by one stop to get the proper exposure with the parchment.


Tuesday, September 28, 2021

DIY rig allows for bounced flash even when there's no ceiling to aim it.


    One of the easier ways to improve your flash photography is to bounce it off the ceiling or a wall.

    As long as the surface is white, or close to white as possible, it will soften the light and give a more pleasing appearance to the subject.

    There are just a couple problems with it, though.

    First, just bouncing off the ceiling by itself will cause shadows around the eyes and under the nose. That's because the light is only coming from above. Years ago, I got around that problem with a double-headed flash, where a smaller flash filled in the shadow areas, creating a great even light.

    Second, you need a ceiling, or at least one that's not too far away. Trying to bounce a flash off the ceiling of a Gothic cathedral or indoor stadium is not going to work as well as a standard-height ceiling.

    The solution to the problem is to use a bounce card that gives the flash something to bounce off, both filling in the shadows and allowing for a softer light in places where a ceiling bounce is clearly not practical.

    Most speedlights today are equipped to a small plastic card you can slide out that reflects some light forward while the main flash bounces off the ceiling, balancing the light. But that does not quite address the problem if you're shooting outdoors.

    There's a variety of flash modifiers out there that will allow you to bounce the flash forward, creating a softer light than a direct flash while avoiding the shadows from just an overhead lighting.

    The one I use is one I found on Pieroway.com. Unfortunately, the site has since been suspended, but fortunately it is still available on Archive.org's Wayback Machine. The site has PDFs that you can print out with the pattern for the bounce card, with the option to print one with a plain black back or one with the logos for Canon, Nikon or Sony.

    One of the things I like with this design is that it goes over the face of the flash, giving the light something to bounce off of. Other cards allow the flash to go straight out to the ceiling, which is fine if you have a ceiling nearby.

    While the site recommends printing it on card stock and making the necessary folds, I found that using two sheets of craft foam — one black and one white — works better, as it's more durable, the black layer prevents light spillage and it can be folded if you score the fold lines with an X-Acto knife.

    The site recommends attaching it with a rubber band, which I did when I used a cardstock version as a proof of concept. For the final, I used Velcro fasteners to attach to the flash unit.

    Here's what it looks like on my flash:

    But how does it work?

    Here's a photo with the flash directly on the subject, in this case a plush Opus from "Bloom County." (The following pictures only have lens corrections, color balance and sharpening applied.)

    Bouncing off ceiling.


    The flash's built-in flash card.

    The Pieroway modifier.


    What do you think?

Tuesday, September 14, 2021

Feeling the need for speed? Try slowing down

    You're taking a photo of something that's moving, and you want to convey a sense of speed, even if the subject isn't moving quickly.

    The quickest and best way to do this is to slow down your shutter speed, which will cause the moving subject to blur in its line of motion and create the illusion that it is moving quickly even if it's moving relatively slowly.


    In this picture taken near the Northern Pacific Railway Museum in Toppenish, Wash., I got a freight train going past the old depot that houses the museum. At this point, the train is passing through town and just went over a rail crossing, so it's only going about 25 mph. Not terribly fast.

    But I set my ISO to 100 and stopped down to f-29, which gave me a shutter speed of 1/5 of a second. That caused the train to blur significantly as it went down the rails, while the depot and lamp post remain clear, helping further sell the concept.

    (In case you're wondering, I actually hand-held this photo as it was a relatively spur-of-the-moment shot. Since I don't drink coffee, my hands are fairly steady. But a tripod would not hurt, especially if you want to use even slower shutter speeds.)