with Greg Benz


The #1 challenge I hear from photographers about luminosity masks is how to use them to blend multiple exposures or otherwise extracting maximum detail and color from RAW files. I’ve created a comprehensive course to help you tackle those challenges, the Exposure Blending Master Course.  

Exposure Blending Master Course covers

Blending Multiple Files

Multi-processing single RAW files

Optimal Shooting RAW for Blending

Processing RAW for Blending

Getting Great Color

Fixing Halos and Tree Edges

Troubleshooting Other Blend Issues

Sky replacement 

Alternative Blending (BlendIf, HDR)

Luminosity Masks and Selections



Real Estate Interiors

Overall Luminosity Masking Workflow

Sample Edits from the Course:

What's included in the course?

This exposure blending course includes:

  • Over 7 hours of training videos showing how to blend single or multiple RAW files to expand dynamic range and extract maximum detail from your RAW files.
  • Chapters focusing on blending technique, sky replacement, subject-specific considerations, fixing common issues, and much more. See the complete course outline for more details. 
  • RAW files for all the videos (including the RAW files for all the images on this page). 
  • 9 different scenes to address a variety of challenges in landscape, cityscape, and real estate interior images.
  • Written course material designed to augment the videos, as well as provide links to numerous additional free resources and videos.
  • PDF summaries of all the videos with time-codes to make it easy to follow along, no matter what style of learning you prefer.
  • Quizzes to help ensure understanding and retention of key concepts.
  • Closed captions in English on all videos (including when using the offline viewer).
  • Lifetime access to the course.
  • Hosting on a professional learning management system to facilitate learning. This helps tie all the various aspects of the course noted above into an easy to navigate interface.

Course Bonuses

And to help you make the most of the course, it comes with several great bonuses:

  • Bonus #1: Complete luminosity masking workflow video and written outline. This is designed to help show exposure blending in the context of a complete workflow, as well as provide a generalized approach you can use when working with luminosity masks. This addresses one of the most common requests I receive.
  • Bonus #2: Lightroom Develop presets to facilitate RAW processing for blending.
  • Bonus #3: Keyboard shortcuts reference for luminosity masking.

See What Others are Saying

"Tutorials follow a logical progression, easy to follow and very informative." - Matt K

“I bought Greg's Exposure Blending class and it might be the best money I ever spent.” - Mike K.

You make something incredibly complex easily understandable. Your videos and course are concise, clear and enjoyable.” -Chris C.

"I’ve used Lumenzia for several years. This course brings it all together for me. The workflow provided is foolproof. I’d recommend the blending info and Lumenzia to anyone looking to improve their editing skills." - Joe L.

"I can't recommend this course enough to any photographer at any skill level. The course is so well laid out in a step by step process with videos and accompanied by written step by step content covered by the videos that the learning curve is made extremely easy." - Jim G.

"Extremely well thought out and well presented course of instruction on exposure blending using luminosity masks. Very highly recommended!" - Sam G.

"There is a wealth of information here, not just on how to blend multiple exposures, but also on how to use luminosity masks in general and how to think about blending when assessing the scene in the field. I highly recommend this course." - Matt C.

Sample Edits from the Course:

Course FAQs

Who is this exposure blending course for?

This course is designed for anyone who is looking to use luminosity masks to extract more color and detail from their photos and is comfortable with the basic concepts of layers and masks in Photoshop. No previous experience with luminosity masks is required, but is not meant for photographers who have never used Photoshop. The course starts at a very basic level and then proceeds to increasingly advanced blending concepts as you work through the course, so that you can start at the level most appropriate for you and work toward advanced blending techniques. The course is broken down into clearly labeled sections so that you can easily navigate to the content most relevant to your needs. 

Is there a written version of this course or PDF?  

Yes. Every video includes is paired with a PDF that lists the processing steps and rationale used, with time stamps so that you can easily find the material you need. This can also be used as a handy reference to find key sections of the video later. In addition, there are several written sections of the course that supplement the videos with more detail, as well as links to additional tutorials or other learning resources.  

When does the course start and finish?

You will have full access immediately upon enrolling. It is a completely self-paced online course - you decide when you start and when you finish. And you can move through the content in any order you like.

How long do I have access to the course?

How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like.

Does this course require Lumenzia?

No, but the course is recorded using Lumenzia to create and use luminosity masks. You can buy Lumenzia at a significant discount when purchased with the course. The general concepts used should be applicable to other luminosity masking tools. I don’t want anyone to be left out, so the course also includes some basic information on how you can adapt the steps shown with Lumenzia to other approaches, such as with my free luminosity masking panel. The course is also recorded using Lightroom and Adobe Camera RAW (ACR) to process RAW files, but the general concepts would apply to whichever RAW processing software you may use.

How does this course compare with the tutorial videos that come with Lumenzia? 

The videos that come with Lumenzia are meant to help explain the way Lumenzia works in general, as well as details on several features which are not necessarily related to blending exposures. The included and free Lumenzia training includes some basic information on blending exposures, but it is only a tiny fraction of the material this course covers. By focusing on the topic, this course is able to go much deeper into the blending workflow, scene-specific challenges, how to extract maximum color from your images, and how to troubleshoot common issues. To avoid redundant content, the course references Lumenzia training material where basic knowledge of Lumenzia is assumed. Scroll down this page for more details.

What if I am unhappy with the course?

I would never want you to be unhappy! If you are unsatisfied with your purchase, contact me in the first 30 days and I will give you a full refund.

Can I download the videos?

You can use the iOS app to view the videos offline. You can also stream the content on any browser or device. This course is presented through a professional learning management system, which provides for an excellent experience by offering much more than just video files. You will have quizzes to help reinforce learning, written guides to accompany the videos with time codes to easily review each step of the tutorials, access to all the digital files edited in the course, comments to ask Greg questions or interact with other students in the course, and a well designed interface to help organize and navigate all the content. The nature of this platform also enables me to improve or add to the content over time.

The iOS app is subject to the requirements and availability of the Teachable iOS app. This requires iOS10 or later as of November, 2019.

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About Greg

Greg Benz is a professional photographer, photography and Photoshop instructor, and software developer based out of Minneapolis, Minnesota. Greg currently focuses on landscape and cityscape photography, but has broad experience across numerous genres of photography over the past 18 years - including wedding, portrait, family, product, and sports. He is the developer of Lumenzia, the luminosity masking extension panel for Photoshop.