Know How Transfer

Tonal Equalizer
For Photoshop

Control the positive and negative values of high and low frequencies. Get powerful images that are smoother but also sharper and more brilliant.

 © / Konrad Bak
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Vitamin BW

Single and Triple Tone B&W Converter

Brilliant and rich gray tones based on a totally new concept. Get three different tonal versions with one click. Basic an advanced B&W editing made easy


ALCE | Advanced Local Contrast Enancer

Our Bestseller 

“we can correct the sad and unattractive aspect of digital photography. This is the same difference between overcooked and al dente spagettis, or between a soft and a crunchy french baguette”


Watch The New Portfolio Gallery

A collection of stunning Portfolios from our customers, contributors and friends.
Hans Strand, William Branson III and the stunning black&white portfolio of Elio Marchi.

© Elio Marchi

Welcome to Know-How Transfer – The Photography Knowledge Hub

Everyone dealing with photography and digital imaging will find a unique mix of instructional and how-to content, as well as effective tutorials and free resources. Our applications are specifically designed by photographers for photographers.
Our mission is to create a community, a Central Hub of Photography Knowledge, where photographers can exchange experiences, share information and grow their skills.

Apps for Photoshop

All our software is the result of a joint work between developers and photographers, to make your work easier and more qualitative. For less experienced and advanced users.


With our tutorials learn step-by-step shooting techniques, lighting setups, and post-production workflow to create photos or styles like experienced professionals. Coming soon!

Free Resources

A rich collection of topics, tips and essays about every aspect of photography and digital imaging. There’s something here for everyone from the beginner to the advanced user.

Portfolios Gallery

A collection of stunning Portfolios from our customers, contributors and friends. We also encourage you to comment on the articles and share your experience.

Help to Update to Photoshop CC 2015

Find Help to Update

Help to Install our apps on CC 2015

Find Help to Install

Discover the “Wow! Factor”

The “Wow! Factor”, by our newer app, is the magic combination of sharpening and smoothing that helps you add shape and personality to your images. Like our other tools, Wow! is designed for photographers who are not keen on spending hours in Photoshop, but need to raise above the crowd. Our presets already start from an advanced result, then you add your unique creative vision and style. Check out the young lady image below. See the improvement of shape, nostrils, mouth.

Click or tap on the images to enlarge them. Click again to watch the before/after comparison.

 © / Mimage Photos

 © / Olga Ekaterincheva

Wow! Tonal Equalizer.
Powerful. Sophisticated. Easy
New Version. Three Times Faster

Any image is made of fine detail and coarser areas. Controlling these is the key to the winning look which has “The Wow! Factor”; traditional sharpening, for instance, adds detail. But what if you need to remove detail at a certain scale? In the unique Wow! panel, you can do it through five dedicated sliders whose values can be either positive or negative. A few more intuitive controls like opacity and preview are all you’re ever going to need.


Introducing The New VitaminBW

Single and Triple Tone Black & White Converter

The Interface of VitaminBW Single and Triple Tone B&W Converter for Photoshop

Basic and Advanced B&W Tonal Editing Made Easy

A Black & White Converter with brilliant and rich gray tones based on a totally new concept.
With one click you will get a choice three different tonal versions with anything you need to quickly compare an/or  blend them.
Also, VitaminBW offers two conversion options, a full range of color filters and four nice colorization.

  • Brilliant and Tonally Rich Conversion 70%
  • Three Tonal Versions With One Click 85%
  • A Full Set of Great Color Filters 50%

The Hub Blog – Recent Post

Post test Divi 2.4

All’opposto si sbandiera invece la necessità di riprodurre capolavori del nostro patrimonio a risoluzione mostruosa, fino a 10Gb per file ed oltre, pubblicabili anche su internet grazie alla nuove tecnologie di visualizzazione sul web. Neanche questo è secondo...

How to Survive Photoshop CC 2015 Update

The CC 2015 suite brings many new features, sometimes amazing, but many not very relevant to photographers; however if you want to update just now you should follow our survival tips to avoid issues like loosing your scripts and incompatible apps.
To reinstall the lost third party apps you will not be able to use Adobe Extension Manager (the app used by Adobe to uninstall) as it has been discontinued. You will find here how to install manually and, if you want, reinstall the deleted versions of Photoshop.

Dedicated to young photographers beginning their profession

This post is to introduce you to my “Semi-serious biography.” written in 1992 after two long days of interviews. It narrates my beginnings as a photographer, first as an amateur, then as professional. It is especially targeted to those young people about to embark in this tough but beautiful profession…

A Pick From Resources | Highly Shared on The Web

3F | The revolutionary professional scan system by Hasselblad

In 2000 Imacon, now Hasselblad, created a new proprietary format for the Flextight scanners, the Flexible File Format or fff. 3F has determined the biggest revolution in the field of original analog scanning since the introduction of the drum scanner. A 3F allows one to obtain a file similar to a raw file from analog original.


A false profile (that is, a profile with a non-standard gamma value) can be expressed as pencil-drawn curves generated by Photoshop. While this has little practical relevance, it allows us to understand what assigning a false profile actually does to an image by simply inspecting the shape of a curve.

Notes on Sharpening

Sharpening with Gaussian and edge-aware blurring kernels; a new experimental approach on High-Radius Low-Amount sharpening; how to separately target edges and texture in the same high frequency range. Gaussian, Bilateral and Mixed pyramid decompositions, efficient platforms on the top of which new sharpening strategies can be developed.

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