[Direct from Manufacturer] 
Vlad’s most popular Focus Checkers / Test Targets are in for 645 film photographers.  Vlads Targets are the gold standard in film scanning — the modern evolution of classic Focus Test Negatives and sharpness charts. Color slides are not included and shown for reference only. 

The total length of strip is 8.5 inches and its width is standard type 120 width of 2 1/4 in. 
All strips work fine with VALOI 360,  Easy 120, Negative Supply, Digitaliza and other film folders, 

You may select from number of options:
About camera scanning: this is a cost-effective and efficient way of digitizing physical film. By using a high-resolution digital camera to capture each film frame, camera scanning allows for precise control over color balance, contrast, and exposure. This results in high-quality digital files that can be used for editing, archiving, or printing purposes. Camera scanning is also faster and far more cost-effective than traditional scanning methods, making it an ideal option for photographers dealing with large volumes of film.

Value statement: is a must-have for anyone looking to achieve the best results in camera scanning. By ensuring maximum sharpness and accuracy in each frame, guarantees that your digital files will be true to the original film and capture everything that is on film. Users of regular film scanners especially flat-bed ones will find Vlads Test Targets indispensable for fine-tuning, height-adjusting their scanners as well. Choose for the ultimate in precision and quality in camera scanning.

Vlads Test Targets is a tool designed specifically for camera scanning aka digitalizing that helps ensure critical focus, especially in the corners of your scans. The targets contains multiple USAF 1951 patterns strategically located across the frame that can help you gauge the quality and capability of your lens, allowing you to make more informed decisions when selecting equipment. 
The Siemens stars facilitate effective visual control over film plane alignment relative to the camera sensor. Along with "focus peaking" feature they make initial scanning setup a breeze.
Set comes with different film formats (35 mm, type 120, 4x5" ) and is produced using the finest grained film currently available, which ensures high-quality results.