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The Walker Pro Rolling Backpack - First Look

October 23, 2025

In just a short time, I’ll be heading out on my next photo expedition—this time to Tenerife, one of the Canary Islands. 

Tenerife is about 4,430 miles (7,129 km) from my home in the US. Carrying a backpack through a series of airports for a day is rough. Using a roller bag is great, until you get to places where you can't roll things.

Perfect timing for the trip—I have a new camera bag to put to the test: the Walker Pro Rolling Backpack by ThinkTank Photo. 

This review is just my initial impression; I’ll be back with an update after I’ve spent some real time using it in the field.

So, this is what we are looking at, this is the Walker Pro Rolling Backpack.

And here are the specs


If you’ve read my reviews before, you already know that ThinkTank is the only brand I consistently rely on. Over the years, I’ve tested bags from several other companies, and I often find myself wondering whether the designers have ever actually been out on a real photo shoot.

ThinkTank is different. Their bags are thoughtfully designed and built to handle the realities of the field. For the past ten years, they’ve been the only brand I use.

Now, before I get into the details of the Walker Pro Rolling backpack, I’ll admit—I was skeptical at first. I already own both camera backpacks and roller bags, but in my experience, when manufacturers try to combine the two, the result is usually disappointing. These hybrid bags tend to be uncomfortable, unbalanced, and awkward to maneuver. It often feels like they just slapped a trolley system onto a standard backpack. The result? Metal bars digging into your back and a bag that’s a nightmare to navigate through airports.

So, how does the Walker Pro Rolling backpack compare?


Spoiler alert: this one’s different.

Before sitting down to write this review, I packed the Walker Pro Rolling Backpack with just the basics, you know, . . .  stuff.

 

This is the gear I will be bringing on my next journey.  

And how did the Walker Pro Rolling backpack handle all the stuff?

Take a look.

Not only did I get everything in, but I have space left for the really important things like Tic-tacs and Reeses.

This bag was able to handle 2 camera bodies, 4 lenses, flashlights, batteries, battery backups, solar panels, other stuff, a tablet, and a full-size laptop.   

Just like every other ThinkTank Photo  bag I've used over the years, the inside is completely modular.  You can adjust the interior space to accommodate whatever gear scenario you have.  It's like having a custom-made bag for whatever you want to take with you.  This backpack is great.  

Next up: the test.

Before heading out on any photo trip or safari, I always spend a few days preparing for those long hikes to the perfect shooting spot. To get ready, I load up my backpack and take it out for a few trial hikes—just to get used to the weight and feel.

This morning, I took my new Walker Pro Rolling Backpack out for a 2.2-mile (3.54 km) hike.

So, what did I learn?

First off, yes—I’m getting older (but that’s beside the point). The good news is, the Walker Pro Rolling Backpack is surprisingly comfortable. I didn’t feel the wheels pressing against my back, and the handle supports didn’t dig in at all.

I also tested how it rolls, and it handles beautifully—steady and balanced, with no wobbling or tipping. One feature I really like is the zippered section in the back that completely hides the shoulder straps when you don’t need them.

My first impression is very positive. Being able to roll it through airports instead of carrying it on my back is going to be a real back-saver. Then, once I’m in the field, I can easily switch to backpack mode.

Next, I’ll be putting the ThinkTank Photo Walker Pro Rolling Backpack through its paces in the Canary Islands. Check back for my full review once I return!

 

In the meantime, if you want to check out this bag, use this link. 
 

Next stop, . . . . Tenerife!


Mirror Images with a twist

April 23, 2024

Mirror imaging is the term used for an image that is created by taking an image or part of an image and mirroring it and connecting the two images to create a surreal look.  The technique has been around for decades.  I remember seeing a monochromatic mirror image that had been made in the 1940s, and that’s what got me to start making them. 

Now the most important thing to consider when creating a mirror, is where to set the mirror point 

Some images will look good by mirroring the entire image, whereas others will require a selective cut.  Let me give you an example.

For this image of the driftwood.

If we mirror the entire image, we get this.

It is a mirror image, but there's not much exciting going on in this image.

However, if we decide to cut the image at the edge of the driftwood, we can create something a little more interesting.

Now this works.  Some people have said it looks like some sort of creature with its arms raised to the sky.  

Take a look at this mirror image.  What do you see? A heart? A face? This image will make a person stop and look closer.

Here's another one.

Now what do you see? An upside-down down heart? A face inside the heart? A demon at the bottom center where the tree roots meet?  It's interesting how our minds find meaning in the shapes when we mirror an image.  Often the shapes are at the middle of the image.

So, let's go through the process of creating a mirror image, and then I'll show you a little twist afterward to mess with the viewer of your images.

So, let's get started.

We are going to start with an image made in New Zealand, with the IR Chrome filter by Kolarivision.

For this image, I think I will mirror everything. 

I will use the rectangular marquee tool to mark the entire image.

Then I'll click Edit, and Copy.  Now I have the image saved to my clipboard.

Next, I'm going to expand my canvas.  To do this I will click Image, then Canvas Size.

Then you see this box appear.

We are going to make a few adjustments.  Under the width, we are going to double that amount. Then in the area below that is marked Anchor, I'll click on the center, left side square so the extra space is added to the right where the mirrored part will go. 

Then click OK.

Now we have an image that looks like this.

Next, click Image, Image Rotation, & Flip Canvas Horizontal.  Now your image will look like this.

Now we are going to use the image we copied to the clipboard.  Simply click Edit, then Paste.

Now you should be seeing something like this.

Now use the move tool to line the two images up.

One more step.  Click Layer, scroll to the bottom, and click Flatten Image.

Congratulations!  You just created a Mirror Image!

Once you complete the steps a few times it will become a quick process. 

Now for that little twist, I mentioned earlier.  When someone realizes they are looking at a Mirror image, their eyes naturally shift left and right as their mind makes sure everything is the same. 

SO, . . . .  Let's mess with them a bit.

For this, we will use the Remove Tool.

I decided to remove one boat from each side, and one rock on the right side.

Here's a side-by-side comparison.

It's just a little something to try.  Here's another one; can you see the differences?

One more thing.  After you get good with a horizontal Mirror Image, try mirroring an image horizontally, and then vertically.  

Going from this.

To this.

And then this.

To date, this is my favorite Mirror Image.  It reminds me of an M.C. Escher print.

So, are you ready to give it a try?  If you get in a jam, I teach online.  www.danwampler.com

 

 

 

 

 

 

 


This Filter has forever changed the way I will shoot.

November 30, 2023

I have found something that will forever change the way I shoot.  Now I realize that’s a bold statement, but it is true. 

What I am talking about is the Iridium filter by Kolari Vision.

The proof is in the pictures

What do all these images have in common?

 

The answer? 

They are all straight out of the camera, a camera with an Iridium filter in it. 

For the record, I didn't adjust the levels & curves, I didn't increase the saturation, or make adjustments in Selective Color.

And finally, I didn't do a red/blue color channel swap on the second image. 

I admit it felt quite strange to not work on these images in Photoshop, but they didn't need anything.

Look at the intense greens, reds, & yellows in the color image of the turtles. 

How about the incredibly blue sky in the second Infrared image?

And finally, check out the deep blues, yellows, and reds in the pelican image.  

 

So what is an Iridium filter, and what does it do?

Simply put, the Iridium filter is a color-enhancing filter.

As Kolari puts it:

 

"This new Kolari filter works by blocking the in-between, ambiguous colors, allowing true reds, greens, and blues to shine through.  By doing this, the Iridium filter can be used for both scientific images and artistic applications"

 

So, how do you use an Iridium filter?

 

They are currently available as a drop-in or clip-in filter.

Used on an unconverted camera, it gives me images straight out of the camera that remind me of the old Kodak Kodachrome, or the old Panavision movies. 
 

This image was made after sunset when you usually cannot capture the subtle colors you see with your eyes.

Here's another one, an after-sunset image

I have shot in the very same spot many times, but have never been able to so easily capture what my eyes and mind see.

For Monochrome photography, the Iridium filter is also great.  If you are going for a Chiaroscuro effect, this is the filter you want.


 

For me, the Iridium Filter by Kolari has been like magic. 
 

The images have a sharp, crisp feel to them, and the color tones and intensity are exciting.

Now on a Full spectrum camera, it also does some interesting things.  For those of you not familiar with a full-spectrum conversion, it is a camera that has had its IR-blocking filter or hot mirror removed and a clear piece of glass put in its place.  This allows you to capture (with no filter) the visible light spectrum, the IR spectrum, and the UV spectrums of light.  With a full spectrum camera, you decide what you want to shoot by what filter you place in front of the sensor but a clip-in filter, drop-in filter, or screw filer.

In the case of the Iridium filter, a full-spectrum camera will produce images that are very similar to a 720nm image, in that the image comes out with white, or near white foliage, and blue in the sky.  All with no post-production.

In some circumstances, you will get a touch of pale red in some of the foliage.

Next, I took the Iridium filter for a spin with one of my favorite shooting exercises, photographing butterflies. It may sound silly, but photographing butterflies is a great way to hone your skills as a photographer.  To be effective, you must be able to shoot quickly.  Blink and you could miss the entire shooting opportunity. So I shot with a Canon R5 and the RF 100-400 f5.6/8 IS USM lens.

Once again, these are straight out of the camera. Look at the amazing color tones! And with no post-production.  

I want to leave this filter clipped permanently in my camera. 

But can I ???

My initial testing was exciting, but I had to determine whether or not it had any effect on an image when shooting other types of Infrared. 

In all, I tested 590nm, 665nm, 720nm, 850nm, and the IR Chrome lite filters.

 

The outcome? 

 

There is minimal change when shooting a full-spectrum camera with the Iridium filter. If you weren't looking at them side by side, you probably wouldn't even notice.

Here's an example with the IR Chrome filter.

 

Here's the 720nm filter

And finally the ever-popular 590nm filter

So, I'm sold on the Iridium filter and intend to leave it in my camera full-time.

If you want one, head over to Kolari Vision and get one before they run out. 

My suggestion to Kolari, if possible, develop a full-spectrum conversion with the Iridium filter built. 

Then call me, I want one.

 

Here's a list of everything I used and spoke about.

Canon R5

RF 100-400mm lens 

IR Chrome Filter

Full-Spectrum conversion

Kolari Vision 

 

 

 

 

 

 

 

 


The Most Versatile, easy to use, Infrared Filter

November 02, 2023

I love digital Infrared photography.  I've shooting it for nearly 20 years and teaching it for over 10 years.  The look is interesting, and the idea that you are creating images using a portion of the light spectrum we can't see is very exciting.  One constant in the world of digital IR has been the fact that post-production on Infrared takes more than a little bit longer than natural color photography does.   If you are shooting Infrared in the range of 590nm to 720nm there is the famous Red/Blue color channel swap that is necessary to give your images a blue sky. 

Many of my students want to know how to shoot IR without having to spend too much time on post-production.  I then try to show them the quickest techniques and help them accept the reality of Digital Infrared post-production.

It takes time.

Well, that has changed. Thanks to the  Kolari Vision IR Chrome Lite filter.  

 

Now if you're not familiar with the IR Chrome filter, it is the digital answer to the now-defunct Aerchrome Film.  Aerchrome film was an Infrared film made by Kodak from 1942 to 2009.  To say it was challenging to use is being very polite, but it produced images with a bright Blue or Cyan sky and the foliage was in the color tones of Red, Pink, or Orange.

Kolari brought out the IR Chrome filter a few years ago, and the IR Chrome Lite is the latest iteration of this filter.

Now it is important to note that the Kolari IR Chrome Lite filter can only be used on a Full-Spectrum Camera.  For those of you not familiar with a Full-Spectrum conversion, this is a process where the Hot Mirror, or IR-blocking filter is removed allowing the camera to capture images in the light spectrum range of Natural Color, Infrared, and Ultra Violet.  The way you determine what you are going to capture is by what filter you place on your lens, clip-in front of the sensor, or drop-in behind the lens. It's a great way to shoot as you need only one camera body to shoot everything.  If you'd like more information about a Full-Spectrum conversion, I suggest checking out Kolar Vision here  They are the number one in the industry.

Now as for the images made with an IR Chrome lite filter, they will need to be properly white-balanced.  In my opinion, the best White Balance can be achieved by using the RAW editor made for your camera.  Each camera manufacturer has a free RAW editor that will allow you to properly White Balance your images.  If you are not familiar with the RAW editor for your camera, you can contact me and I will point you in the right direction. 

So, here is an example of an IR Chrome RAW image.  An in-camera White Balance was set, but as I know the in-camera WB doesn't actually alter the RAW file, but rather the way I preview it,  I don't give it any concern.  This however can be a shock to some people as this is how my IR Chrome Lite image initially looks.

Not to worry though. I use my RAW editor, in this case, the Digital Photo Professional software to White Balance, and convert my RAW files to a Jpg or Tiff.   

Once the White Balance is set, the image immediately pops.  You will also notice I cropped the image slightly.

 

Just like that, I have a stunning Infrared image!

And without the need for a channel swap. 

This is where the versatility comes in. 

Let's say I like this image, but I want the look of a 590nm IR image.  

Well, that's simple. I'm going to open my image in Photoshop and then select Image>Adjustmenst>Hue/Saturation

Then you see this dialog box.

All you need to do is select REDS and then move the Hue slider to the right.  That will give you this.

If you want to adjust the sky from Cyan to Blue, Select CYANS, and then adjust the Hue slider to the right once again, to get this.

Want the look of a 720nm IR image?  Simply lower the saturation on the REDS and then adjust the lightness to make it look like this. 

See? 

Very Easy. 

Now how about an intense Monochrome Black and white?  Simply follow the 3 easy steps I outlined in this piece here and you can get this.

Four different looks form one image, and all are done in less than 5 minutes total.

So you can see why I say the IR Chrome Lite filter is so versatile.  

But.......

Let's not lose sight of how interesting the IR Chrome Lite filter looks without the changes.

The way the color tones come through with the IR Chrome Lite filter can make for some very surreal images.

Here is a long-exposure image image made using a 10-stop ND filter with the IR Chrome Lite.   

Canon R5, IRIX 15mm f2.4, 10-stop ND, f13, ISO 50, 10 seconds

 

Here's an of a tree by the ocean, out for a walk.

Canon R5, IRIX 15mm f2.4, f11, ISO 100, 1/320 sec

 

And one of my favorites.

Canon R5, IRIX 15mm f2.4, f11, ISO 100, 15 seconds

You'll notice in this long exposure image that the subject retains a natural-looking skin tone, as opposed to the ghostly white look you normally get from an IR image.

 

This one really has an other-worldly feel to it.

Canon R5, IRIX 15mm f2.4, f18, ISO 100, 30 seconds

 

In conclusion

Shooting with the  IR Chrome Lite filter from Kolari has been like discovering a totally new type of Infrared photography.  The ease of use and the versatility of the images make for great shoots.  It is now my first go-to filter.

So, what do you think?

Here's a list of everything I used and spoke about.

Canon R5

IRIX 15mm f2.4 

IR Chrome Filter

Neutral Density Filter

Full-Spectrum conversion

Kolari Vision 

 

 

 

 

 


Kolarivision Drop-in Filter system for Infrared photography - A Long overdue review

September 28, 2023

When Canon brought out their mirrorless cameras, the “R” series, they also brought a new lens mount the “RF” mount to go with it.  Those of us existing Canon shooters initially had the concern we would now be forced to buy all new lenses.  Canon delighted us by bringing out a convertor ring that allowed the use of our old “EF” lenses on our new Mirrorless “R” cameras.  Then Canon took it a step further and made a convertor ring with a side mount, drop-in filter.  Canon offered a small selection of drop-in filters, but nothing that really aided with Infrared photography.  This is where Kolarivision saw the opportunity and took it.  More about what they did with the drop-in system in a minute.

What is the drop-in filter system?   

The drop-in filter system is a small ring that fits between the body of the "R" Series Canon mirrorless cameras and connects to the Canon "EF" lenses.

 

 

Using the drop-in system is very simple and once in, the filter locks in place and will not come out.

Overall, a great design.

Now, let's talk about how this relates to Infrared.  

The people at Kolarivision as I said a minute ago, saw the opportunity, created a system based on this idea, and made something pretty cool for Infrared photography. 

They even designed their own convertor ring with a drop-in filter and then marketed it way less than the price of the Canon OEM convertor ring.

Nice.........

Then they proceeded to start making different drop-in filters.  At first, it was different nanometer Infrared filters.  Those alone made for a great shooting experience.  

Why do I say that?  Here's an example.  

I love an ultra-wide lens for landscapes.  I have found an excellent 15mm f2.4 lens made by IRIX.  It is a great lens, worth considering.  It has almost no side distortion but comes in an "EF" mount.  With the converter ring, it is no problem to use on one of my "R"s.  The problem is the lens takes a 95mm filter in front.  95mm filters are not easy to come by, are expensive, and hard to deal with. With the Kolarivision drop-in filters, shooting with the lens is a breeze.

Here are a couple of examples, made in one of my favorite places to shoot, Las Terrenas, DR  These images were made with the IRIX lens

 

Another example is the Tamron 150-600

Probably one of the best budget Super-telephoto lenses on the market.  Once again, a 95mm filter is required.  With the Drop-in filter system, not an issue.

Here are a couple of IR images I made using the lens on one of the Safaris I lead.

 

The reason I labeled this piece as "long overdue" is because I've been shooting with the Kolarivision drop-in filters for a few years now and they quickly became a mainstay in my camera gear and I forgot to share my experience.  In a way, it's good that I did delay, as since then Kolarivision has added an amazing number of drop-in filters.  

Here's a current list as of today.

Filter Options:

  • 2-10 Stop VND**
  • 6-15 Stop Dark VND**
  • Swirl Bokeh 1X
  • Swirl Bokeh 2X
  • CPL
  • 1-Stop IRND
  • 2-stop IRND
  • 3-Stop IRND
  • 4-stop IRND
  • 5-stop IRND
  • 6-Stop IRND
  • 7-Stop IRND
  • 8-Stop IRND
  • 10-stop IRND
  • 15-stop IRND
  • 20-stop IRND
  • 550nm Infrared
  • 590nm Infrared
  • 665nm Infrared
  • 720nm Infrared
  • 850nm Infrared
  • IR Chrome
  • UV Bandpass
  • UV/IR Cut Hot-Mirror
  • UV/IR Cut Filter (H-Alpha Pass)
  • Clear
  • Blue IR/NDVI
  • Iridium – Color Enhancing
  • IR Chrome
  • IR Chrome Lite
  • Rotating Flare
  • Rotating Streak
  • Dual Streak
  • Streak + Rotating Flare
  • Flare + Rotating Streak
  • Dual Flare
  • Drop-In Frame Only (No Glass)

Let's see, ...... 35, 36, ...37 filters right now.  The last one being a holder that you can use to make your own custom filter.

They even have a Filter case/holder, which I have not had my hands on, but looks to be a cool way to transport filters.


 

So, if you are looking for a great, easy way to shoot Infrared with the ability to swap out filters easily, the Kolarivision system is the way to go. 

Here are some links to make things easier to find.

Kolarivision

The drop-in filter adapter 

The drop-in Filters

 

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