How To Convert Film Slides To Digital Pictures - Easy DIY setup for any camera

Description

Want to convert slides to digital images? In this episode of House of Hacks, Harley shows how to convert film slides to digital pictures using the gear you already have. This technique also works for transfer old negatives to digital photos.

Resources (Amazon affiliate links):
Clamp light with aluminum reflector
GE 100 watt equivalent LED lights
Clip on macro lenses

Additional information about camera/lens selection and post processing.

How to shoot to the right (aka ETTR)

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For a written transcript, go to How To Convert Film Slides To Digital Pictures

Music under Creative Commons License By Attribution 4.0 by Kevin MacLeod at http://incompetech.com.
Intro/Exit: "Hot Swing"
Incidental: "Starry," "Touching Moments Two," "Riptide" & "Rocket"

Transcript

Our memories are more like photos than videos. We remember moments. Snapshots in time.

Photos allow us to share these moments with others.

Some may have been there with us and photos give us a common anchor point.

Some may not have been, separated by distance, time or both, and photos allow us to share our experience with them.

Imagine what it’d be like if you could move those memorable moments captured with physical images into the digital world.

You could have a historical record that doesn’t degrade over time.

You could instantly share them others around the world.

You could compile them into new and different ways.

Stick around and I’ll show you how to move from imagination to reality.

In this episode, I’m going to show an easy DIY build to help you digitize either slides or negatives.

Its primary materials are some cardboard and an inexpensive light you can get at the home improvement store or online for less than ten dollars.

And you can use any camera. An SLR if you have one. Or your phone. Or anything in between.

Welcome to the House of Hacks.

If we’re just meeting, I’m Harley and I show you how to create stuff in the workshop.

Sometimes it's out of wood or metal. Today it’s going to be out of cardboard and duct tape.

Basically, we’re going to make a light filled box. This does two things for us.

It diffuses the light nicely so we don't have any hot spots in our final image and it gives us a place to mount either a slide or negative.

Whatever's mounted here gets lit up nicely and then we can use any camera to make an image of it.

I'll show some samples from my SLR and my phone later in the video.

Let’s get started.

The tools we’re going to need are:

• a box knife,
• a straight edge,
• a right angle,
• a pen,
• and a measuring tape.

The materials we’re going to use are:

• some scrap cardboard, (both corrugated and non-corrugated.),
• white duct tape, or you can use white paper or paint,
• shop lamp,
• daylight balanced LED light bulb,
• and glue.

I’m going to be using this inexpensive shop light as a light source. They come in various sizes.

This is one of the smaller ones with an 8.5” reflector. You can get them at any home improvement store or online.

They'll take any kind of light bulb, but I'm going to be using an LED. These run cooler and have great color rendition.

I recommend using daylight balanced for the best color in your final images.

And this one happens to be a 100 watt equivalent.

Since the light is going to be bouncing around inside the box quite a bit, I wanted something with a higher wattage in order to be able to keep the ISO in the camera down lower.

I’ll leave Amazon affiliate links to all of this down in the description below.

First, let’s make a box to contain the light and give us a place to mount the slides or negatives.

This needs to be large enough for the light to mount to and also so there’s enough room for the light to disburse nicely.

Too small and you may end up with some shadows or gradients.

I’m going to use an old cardboard box that was used for shipping.

You could also use some foam board from the craft store and cut it to the desired size.

First I mark a circle where I want to put the light.

Now, I’m going to cut a hole in the cardboard above the reflector for the film mounting point.

I have a number of different film sizes I work with, so I’m going to make this a bit larger than the largest negative I’ll want to duplicate.

In my case it’s 120 film and making it a bit larger keeps the thick edges of the cardboard from casting shadows on the film.

This gives me an idea for the size to cut the rest of the box to.

I want the box to be about as deep as the light is round, so, looking from the top, roughly square.

The idea is to have the light shine in one direction, bounce off the back and then into the film mounted on the same plane as the light.

If we put the light on the opposite side of the film so it's shining directly on it, we might get some hot spots or an unevenness of exposure from the middle of the film to the edges.

Bouncing it this way should help eliminate that problem.

So, this box is a bit larger than I need. I’ll use a box knife to cut it down to size.

I don’t want the inside of the box to be this brownish, cardboard color because that would give us a color cast to the light.

I want it to be as close to a neutral white as possible.

I'm going to line the inside of this box with white duct tape.

But you could also use white paint or glue white paper to the inside. We just need it to be white.

And of course, this step could be skipped if white foam board was used.

Now that the box is white inside, I’m going to tape the box closed.

Next, I’ll tape the light to the box.

To do this, I’m going to first put down a layer of tape on the outside of box.

Then I’m going to tape the light to the tape on the box, making sure to fold over the end of the tape to give me a little pull tab.

By taping to the tape on the box instead of the box itself, it’ll be easy to remove the light without tearing up the box.

We're almost ready to use this, but first we need an easy place to put the film.

In addition to 35mm film cameras, I have a number of cameras that take 120 film and expose it in different aspect ratios.

Some give me square images and some give me wider images.

I’m going to use this thin cardboard to make different holders for the various sizes so I can convert images from any of my cameras.

For each type of film, I cut a large base piece that covers the hole in the box. These can all be the same size.

Then each base gets a smaller hole for a particular film format.

Finally I make holders appropriate for each type of film to hold it in place.

For slides, I cut some cardboard and glued in a U shape around the hole.

Then I glued a small piece of cardboard on the corners to help hold the slide in place.

This will allow the slides to be consistently placed in the same location.

For film, I’ll use cardboard folded to the correct size to make a sleeve and line it with fabric to minimize scratches.

I can then run the film through this sleeve.

Like the area around the opening for the light, I put more tape on the box around the hole where the film holders go and also on the film holders themselves.

Then whatever film holder I need for the project at hand can be taped to the box and removed without tearing anything up.

Now that we have the box constructed, let’s put it to use and get it setup.

I've got a nice stable setup here with the box on the table and the camera on a tripod.

When you set this up, you want to make sure your camera is straight on with the image that you're taking a picture of.

If there's any angle involved at all, one side will be smaller then the other and you'll have distortion that you need to fix in post processing.

They way that I've found easiest to set this up is to level the camera and then raise and lower the tripod until the images were centered between what I was taking the picture of and the camera.

And then I could move the box in and out to change the zoom level until the image completely fills the sensor.

In my case, I have a 35mm camera, full-frame, and a true macro lens and 35mm slides that I'm taking pictures of so I can perfectly fill the image of the slide with the camera.

If you have a different camera, different lens or different film, then the aspect ratios may not perfectly line up and you'll end up with black bars on either the sides or top and bottom in order to see the entire image.

If you're using a zoom lens in your setup, you want to set it to something over 100mm ideally.

This'll give you the least amount of distortion.

If your wider than that, then the edges may get distorted because of the lens optics.

Now that we have the physical setup, we need to setup the settings inside the camera.

There's two things we're concerned with: exposure and white balance.

For exposure, we need to make sure the light's on, set the camera to manual mode and look at just the white light coming out of the box.

We want to set this so that our camera's histogram is as far to the right as possible without actually getting clipped off.

I have a video that talks about this in more detail.

This'll give us the most amount of brightness in our images without glowing out any details.

For white balance, you want to use the custom setting.

How this is setup will vary from one camera to the next, so look in your user's manual to find out how to setup yours.

Now that everything is setup, I'm ready to put a slide in the holder and start making images.

This box will work with any camera.

I just showed an SLR but I've got my phone here and I can use it to just kind of position there and take an image.

It'd be better if I had a tripod for my phone if I was doing a lot of these.

But I don't and hand held works fine enough for demonstration purposes.

I also found that digital zoom works but having a clip on macro lens works even better.

These are inexpensive for cheap ones. They're not perfect lenses but they're satisfactory.

As I mentioned, different cameras, different lenses and different films will give you different aspect ratios and may require some post processing.

Slides of course don't require post processing for color correction but you may need to adjust for crop.

Negatives will need some color correction.

Obviously you need to invert the colors and I go into a lot of details about different camera lenses and the effects that they have and also how to post process negatives in this video over here.

I'll see you over there.

Down here is a video that YouTube thinks you'll enjoy.

And when making things, remember...

Perfection's not required.

Fun is!

How to convert fluorescent tubes to LEDs using ballast bypass (Part 2)

Description

Want to see how to convert fluorescent tubes to LEDs while bypassing the ballast? In a previous video, Harley showed a very easy but expensive way to convert fluorescent tubes to LED tubes. In this video, Harley shows a more involved, but typically less expensive, way to convert a fluorescent fixture to use LEDs involving a ballast bypass.

Ballast bypass, also called direct wired, involves removing the ballast and using LED tubes that run off of line voltage rather than the high-voltage from the ballast. Typically these bulbs are less expensive because they don’t have to deal with the higher voltage used by fluorescent tubes. This video gives instructions for how to wire the fixture to use these bulbs and provides a wiring diagram.

Convert fluorescent tubes to LEDs with the ballast (Part 1)

Subscribe for more DIY videos.

Watch my most recent video.

For a written transcript, go to How to convert fluorescent tubes to LEDs using ballast bypass (Part 2)

Music under Creative Commons License By Attribution 3.0.
Intro/Exit: "Hot Swing" by Kevin MacLeod at http://incompetech.com
Incidental: "Acid Trumpet" by Kevin MacLeod at http://incompetech.com

Transcript

Today at the House of Hacks, we're going to go from this to this.

[Intro]

Hi Makers, Builders and Do-it-yourselfers.

Harley here.

In a previous video, I explained how to convert 8' long fluorescent fixtures from fluorescent tubes to LED lights in a very quick and easy way.

However, this way was pretty expensive. It involved just getting some ready-made 8' LED lights and those things are really pricey. For some reason, the 8' LED tube replacements are a whole lot more expensive than 2 4' LED replacement tubes. The 8' tube replacement are $60 each whereas I picked up a 4 pack of 4' ones for $24. I have no idea why. And they've been this way for quite a while. I picked up two pair last year I think it was, and they were $60 and I just picked up two pair yesterday and they're still $60. Same price. It hasn't moved at all. And it's pretty much the same price whether you buy it online or retail like I did. There's usually a few dollars off buying online but of course you have shipping and handling costs added to it so it ends up being a wash.

It's a real quick way to do it because you don't need to replace ballast, you don't need to rewire anything, you just plug them in in replacement of the existing bulbs. So, it's really quick. It's more expensive getting the bulbs that are designed for ballast.

However, in the 4' market you can buy tubes that work either with ballast or without ballast. And I have a fixture that needs some work on it. The ballast is making noise and the tubes are flickering and so I wanted to replace them with LEDs.

But because the ballast is making noise, I want to do a ballast bypass and remove the ballast altogether. And so I'm going to be demonstrating that in today's video. It is a little bit more work because you have to take the ballast out and rewire things a little bit, but it's not a whole lot more work and you do remove one more component that could possibly fail on you. So let's get started.

First remove the old bulbs.
It'd probably be a good idea to turn off the power before doing this.
Yeah, do as I say, not as I do.

Now take the fixture down. This will vary depending on how it's installed.
In my case, it's just sitting between the joists on some 2x4s.

Next disconnect the mains power.
Be sure to have the power turned off.
You don't want to be working with live power at this point.

On the bench, the fixture needs to be opened up.
This will vary depending on the type of lamp you have.
In my case, it's just a matter of removing two nuts.

And then the case just opens up.

Here we see where the sockets are connected to the ballast.
Since we're removing the ballast, all these connectors get taken apart.
We need to do this on both sides of the fixture.

And we need to remove the mains wire from the ballast input.

Once all the electrial connections are separated, we can physically remove the ballast.
In this case, there are two screws with nuts on them.
Other designs may have a single sheet metal screw on one side and a slot on the other.

Now we need a short piece of wire to run from the center where the mains are connected to one end of the fixture.
I'm using some scrap 14/2 TPS cable I had in the parts bin.
If you have to buy some, 3 feet should be plenty.

Now I prepare all the ends by stripping off about 3/4" of insulation from each wire and twisting the strands so they don't fray as easily.

I also strip the insulation from the 14/2 cable.

Now comes the most technical part of this project.
Here we see each socket has two wires coming out of it.
On one end of the fixture, we want to connect one wire from each socket to the white wire and the other one to the black wire.

It's probably easiest to see this in a pictoral diagram.
Hit pause on the video if you need to study this.

Because I have four sockets on this fixture, I used some pigtails to keep from having a huge number of wires all in one wire nut.
When it's all put together, it looks like this.

The sockets on the other end of the fixture don't need any connection.
I just put wire nuts over the ends of the wires to keep them from potentially shorting anything out.
And then zip tied them together to keep them neat and tidy.

Finally I stripped the insulation back from the other end of the 14/2 cable.

We can see here, I'm not using the copper ground from the new cable, but the existing ground that goes to the fixture.

And now it's a matter of reassembling the fixture.

And reconnecting the mains.
Again, make sure the power is off before doing this!

Reinstall the fixture.
In my case it's just a matter of dropping it back into place between the joists.

Finally, install the bulbs.
These particular bulbs have only one end that connects to the sockets with power, so if they don't work the first time, turn the bulbs around end for end.

Turn on the power and enjoy your new lights!

So give me a thumbs up if you found that helpful. I really appreciate it.

And I really thank you for joining me on this continuing creative journey that we're on.

Until next time, go make something.

Perfection's not required.

Fun is!

How to measure fluorescent and LED light flicker

Description

Fluorescent tubes flicker because of their inherent design. LED lights may or may not flicker depending on how well their power supply is designed. How do you measure the amount of flicker? In this episode, we quantify the flicker in the fluorescent tubes and after an LED light conversion.

How to easily convert fluorescent tubes to LEDs: https://www.youtube.com/watch?v=_YROz2AekkA
Electronupdate video: Measuring Light Bulb Flicker with Nothing More Than a Cell Phone: https://www.youtube.com/watch?v=Qym5-126BDY

For a written transcript, go to How to measure fluorescent and LED light flicker

Music under Creative Commons License By Attribution 3.0.
Intro/Exit: "Hot Swing" by Kevin MacLeod at http://incompetech.com

Transcript

After seeing last week's episode about converting fluorescent lights to LEDs, David Terry asked "do they flicker the same way fluorescent tubes do?” I wasn’t sure, so let's measure and find out, today at the House of Hacks.

[Music]

Hi Makers, Builders and Do-it-yourselfers. Harley here.

Fluorescent tubes are powered by AC current and flicker based on the speed of the power cycles. Here in the United States, our power cycles at 60 hertz. This means the hot lead varies between positive voltage and negative voltage 60 times a second. The tubes don’t really care about positive or negative values, just the absolute value and so will flicker at twice that rate, or 120 times a second.

This is too fast to bother most people, but a non-trivial segment of the population are affected by this and have problems working under fluorescent lights. The flicker can also cause artifacts when shooting video at certain frame rates. And, as the bulbs age, they may not go on and off at every cycle, causing the flicker to slow down and become more noticeable.

To measure the flicker, I've got this simple setup. I have just a solar cell and the oscilloscope. The flicker in the lights will cause the output of the solar cell to oscillate in sync and the scope allows us to see that variation. At 120 times a second, we expect to see each cycle to be around 8 milliseconds so I have the scope set to 10 ms per division.

Now I'm going to connect the scope to the scope to the solar panel. And we’ll see what we have here… and that's exactly what we expect to see; each cycle is about 8 milliseconds.

So now I'll go over into the room other room and check it out with the LEDs.

I still have exactly the same setup as I had before. Let’s connect the scope to the solar panel and see what we get.

Ah, a straight line. So, to answer David’s question: no, there is no flicker with these LEDs. Thanks David for asking the question.

And coincidentally, a couple days ago an electronics channel I subscribe to, electronupdate, uploaded a video showing how you can use a cell phone to detect this flicker. I thought you might find that interesting.

If this is your first time here at House of Hacks: Welcome, I’m glad you’re here. We’d love to have you subscribe. Through this channel I hope to inspire, educate and inform makers in their creative endeavors. Usually this involves various physical media like wood, metal, electronics, photographs and other similar types of materials. If this sounds interesting to you, go ahead and subscribe and I’ll see you again in the next video.

Thanks for joining me on our creative journey. Now, go make something. It doesn’t have to be perfect, just have fun!

How to easily convert fluorescent tubes to LEDs

Description

There are several ways to convert a fluorescent tube fixture to using LED lights. In this episode, Harley shows the fastest, easiest, but most expensive option to retrofit T8 and T12 fluorescent lights to LEDs. At the end, measurements are taken of the light output to see the effect of the new lights.

How to count in binary: https://www.youtube.com/watch?v=ZCFcuVHB1sI

For a written transcript, go to How to easily convert fluorescent tubes to LEDs

Music under Creative Commons License By Attribution 3.0.
Intro/Exit: "Hot Swing" by Kevin MacLeod at http://incompetech.com

Transcript

Today at the House of Hacks we’re going to go from this to this. Oh, yeah!

Hi Makers, Builders and Do-it-yourselfers. Harley here.

The general illumination in my shop is all fluorescent lights and for quite some time now I’ve been wanting to upgrade them to LEDs. Recently I’ve had two bulbs that were kind of on the way of going out and today they just didn’t come on at all. So I went down to the home store and decided to bite the bullet and convert a couple of my fixtures, two of the fixtures, a total of four bulbs, from fluorescent to LED.

In all my investigation I’ve found that there are kind of three principal ways of doing this conversion: the first is very quick, very easy and expensive, the second is less expensive and also a little bit more work, and the third way is the most amount of work but also the least expensive. So, today, because of time pressure, I decided to go, on these, with the first option of the most expensive but the fastest and easiest to do.

For cost comparison, these bulbs are $60 apiece and I have four bulbs to replace. So that means the total cost on this conversion today was $240. Now to put it in perspective, I think I paid $200 for the whole fixtures originally, including fluorescent tubes. So it is quite a bit more expensive but now I have LED lighting with all the benefits thereof.

Today I want to look at what it takes to install them and what the difference is in the light output. So let’s get to it.

These come in four foot long packages. There’s two tubes that snap together to make an eight foot section. They’re made by Feit Electric, Feit electric, I don’t know how you really pronounce that. They replace both T8 and T12 bulbs and the advantage of these is they work off the ballast voltages so you have to do is take out the old bulb and replace it with the new one after you put everything together and unpackaged it.

It says it’s rated for up to 50,000 hours of life. We’ll see how that actually works itself out. It uses 44 watts and has a color temperature of 4100 Kelvin. So it’s sort of in the middle of the color temperature range.

Here we have one set of ends as packed. A cap is over one piece for shipping to cover the open middle where the two pieces will be joined together. It can be removed and discarded. And the other end contains the power pin that will connect to the light fixture.

Here’s the other set of ends. One end has a clear plastic piece over it that contains a magnet. This will stabilize the center of the light. Remove it for now and set it aside. This is the other pin that will connect to the light fixture. The other piece has a connector with two spring loaded pins. Pull this out until the pin locks into place.

Now slide the clear plastic support over the end without the connector but don’t cover the small hole for the locking pin. Slide the two pieces together until the pin locks into place. Finally slide the plastic piece over the joint to help support the connection.

We can see half the tube is aluminum extrusion to provide support and heat dissipation. The other half has a curved frosted diffuser.

Installation is just like a normal fluorescent tube. Once both ends are in place, push the middle up so the magnet sticks to the fixture for support.

And that’s really all there is to it. Snap the two pieces together, take out the old bulbs and put in the new bulbs. Short. Sweet. Simple.

I really like it. It seems to work out really well.

Now let’s go take a look at what the actual light output is.

The measurement of tubes is on the left and the LEDs on the right. There is 1 EV difference between the two. In photographic terms this is one stop, or twice the amount of light out of the LEDs.

So you can see, the light output from these is quite a bit more. It’ll be nice having consistent color temperature across all my bulbs too. Working in the shop should be much more pleasant for me.

If this is your first time here: Welcome! We're glad you’re here. All my videos have to do with maker related types of topics: woodworking, metal working, shop projects in general, kind of like this. If that kind of thing sounds interesting to you, go ahead and subscribe. We’d love to see you again in the next video.

Now, go make something. It doesn’t have to be perfect, just have fun!