Your fast field guide to better photos in camera!

Do you like nailing it in camera? I do! So I made the Shadow-Hacker cards. 20 years of photography study, zones and shadow secrets. Things I discovered in my journey to becoming a PPA Master photographer. Not a book, because less is more here.  Fast reference guides for Zones, shadow hacking and better photos in camera!

Download my Field Cards | $39

  • Includes JPEG and PDF formats.
  • Print cards or load on your device.
  • Free updates as cards expand.
  • All 17 fast Shadow-Hacker cards.

100% No-Regrets Guarantee!

Been burned? Our 31-day No-Regrets Guarantee has you covered. 

Digital tools are rarely guaranteed! But here every product here is handcrafted by Master photographer Gavin Seim and the return rate is less than 1%! Because time is money and Seim tools give you more of both. Buy anything, try it for 7 days. If after you're dissatisfied, email within 31 days of purchase and let us know why. We'll fix it, exchange it, or refund your money. Simple as that.

Free Support and Free Product Updates!
Dot updates are always free and improving. Personal support also. And when a totally new full version arrives, you get a 50% off upgrade price. Watch your tools get better, for free!

20% off any 2 products. Enter cart code: BUNDLE

Do I know you? Gavin Seim is a Photographer, YouTuber, and explorer who Started photography at age 12. Now a PPA Master photographer and Hot-One Photo award winner for his EXposed workshop. He was the host of ProPhotoShow podcast and published throughout the photography industry.

Your go to tools.

Gavin has been creating professional photo tools and workshops for over 15 years. He started the Pro Photo Show Podcast in 2007 to help photographers create better.

As the first to create Lightroom presets for pros, Gavin's been Featured in Publications like Click, Professional Photographer Magazine and many others. Every product is guaranteed so you can grow your photography risk-free.

Your presets, profiles and actions are extraordinary.

Your presets, profiles, and actions are extraordinary. I have Muse which I LOVE. Sharpist is how I got connected with you through Larry Vogel.

LauraLee Humes

A field guide you will use all the time!

When I created the award Exposed workshop and then expanded into webinars like Shadow Hackers it was with a mission to help us all understand shadow and exposure better. If you have been to one of my classes you'll feel right at home. But if not don't worry. The Shadow Hacker cards are the ultimate photography fast guide. They takes the things we often forget in the moment and put that a tap away.

  • Quick refs for Zones and exposure to help you visualize and shoot right.
  • Shadow hunter reminders. Find what matters in your photo fast.
  • Aperture, ratios refs and more to help you find the right settings fast.
  • The 3 secrets: The cards keep you focused on the 3 shadow secrets.
  • Creative helpers. Like long exposure and tips that keep you focused.

More is NOT better!

The last thing we need is piles of pages It sounds good for internet marketing. But they mostly useless in the field. Shadow Hacker cards are the opposite!  Fast and effective references and reminders. That's the point. More is not better here. I worked instead to parse the info down. Make it small and easy to access . Twenty years of practice has taught me what's important in creating a photo. Those things are what I put in my mobile field cards and not the rest.

Make improving your photos easier every day!

Growing the right way.

You're a Shadow hunters and we are always hunting. Find something that's needed? Email me and you may see it in the next free update.

Use them in the middle of shooting.

Have a doubt about your long exposure or Zones. Grab your cards and confirm what you need. That's what Shadow Cards so.

Stay Creative.

If you are unsure, whip out the cards, because you will always find a reminder to make the shot better. That's why they are short and sweet.

What customers  are saying...

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I love BlackRoom...

I love BlackRoom, it rocks! I'm also hoping to up my street photography game - I can't wait to get out and shoot some pics at the annual Bern Onion Market

Alwyn Greer

Wonderful results.

Really enjoy using this Photoshop action. Wonderful results.

Ernst Ulrich Schafer

 I have to say that without BlackRoom

I have to say that without BlackRoom I could have been working on this for hours to get the same result.

Alwin Greer

Thanks Gavin!

Don’t stop making these great products, they have improved my work brother.

Joseph Miller

WOW THANKS!

Just bought the pack. Simply amazing. I just bought a Leica M10M and using your tools it really comes to life.

Luis Uriza

Love your actions for photoshop

Hi Gavin, love your actions for photoshop, they're a fantastic time-saver.

Robert Huber

it's really exceptional...

I've been playing around with BlackRoom and it's really exceptional in what it does.

Martin Wong

I'm really pleased.

I bought Blackroom and Lumist and I'm really pleased.

Jean-Christophe

I love all of them...

I have NHDR 4.0, BlackRoom, and Lumist. I love all of them.

Vipul Patel

Download my Field Cards | $39 $19

  • Includes JPEG and PDF formats.
  • Print cards or load on your device.
  • Free updates as cards expand.
  • All 17 Shadow-Hacker secrets cards.

100% No-Regrets Guarantee!

Been burned? Our 31-day No-Regrets Guarantee has you covered. 

Digital tools are rarely guaranteed! But here every product here is handcrafted by Master photographer Gavin Seim and the return rate is less than 1%! Because time is money and Seim tools give you more of both. Buy anything, try it for 7 days. If after you're dissatisfied, email within 31 days of purchase and let us know why. We'll fix it, exchange it, or refund your money. Simple as that.

Free Support and Free Product Updates!
Dot updates are always free and improving. Personal support also. And when a totally new full version arrives, you get a 50% off upgrade price. Watch your tools get better, for free!

20% off any 2 products. Enter cart code: BUNDLE

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What makes Seim products different?

I'm Gavin Seim and I started studying photography in 1997.

As digital arrived, I went all in. I got to study with masters like Ken Whitmire. In 2009 I founded the Pro Photo Show podcast. I started promoting tone-focused editing, then I started developing presets, Styles, Photoshop Actions and photo courses to make our photography better.


20+ years in the trenches earned me a Masters (M.Photog) from PPA. I've been featured, won a few awards and now I live in Mexico exploring the magical light of the South while creating new tools and searching for shadows.

Everything here is lovingly crafted by a photographer, not a marketing agency! You're rightly skeptical on online photography things. That's why all sales are NOT FINAL here. I guarantee every one of my tools and workshops 100% with my 31 day IRON Guarantee!

If you have questions I'm here to help... Gavin Seim

  • Having trouble or need a fresh download? Visit the help page.
  • Contact me, effects@seimstudios.com or text direct, 509-951-4860
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