Things You Must Know About Aperture Cards.

In the family of microforms, aperture cards are the black sheep. Microfilm is the most well-known member of the “family” that also includes microfiche and aperture cards. There is little doubt that these archive materials have been there for quite some time.

Aperture cards, one sort of microform, are discussed in this article to shed light on the intricacies of this data storage medium, including the benefits of aperture cards and Aperture card conversion expenses.

What Exactly Is An Aperture Card?

Types of punched cards that have a window cut out of them and a microfilm with an image attached within. Additionally, metadata that is usable by machines is typically punched into the image itself. Aperture cards are commonly used for the creation of blueprints and plans in engineering and related fields. Typically, the card will have both punched holes and printed information describing the drawing, such as the drawing number. Furthermore, digital methods are gradually replacing aperture cards, which have played a major part in the archival process in the past. Aperture card digitization is the technique that makes physical aperture cards usable in a digital setting.

Advantages And Disadvantages Of Aperture Cards

There were many benefits to using aperture cards instead of microfilm or microfiche. 

1. First, the image on the card can be accompanied by text that is either indexed or easily accessible. When compared to the time-consuming process of sequentially scanning through film to locate the corresponding image, this method for retrieving specific documents is far more efficient.

2. The second benefit is that it is much easier to share or duplicate certain information due to the fact that each card only carries a single image. A card reader might also print information on the card, such as the document’s number, category, and issuance date. Indexed data can be improved by the addition of handwritten notes. There is no need for a film reader to decipher the information on the aperture card. You can add a new visual layer of organization by color-coding your aperture cards.

3. Aperture cards were great for storing and retrieving drawings and specifications since they not only allowed for easy viewing, but also had clear indexing that could be quickly scanned. Further, they can be copied and moved about as standalone picture units. Aperture cards were widely utilized by businesses across industries for data storage, including manufacturing, government agencies, architectural and engineering enterprises.

The production of aperture cards was more costly than that of microfilm or microfiche. Aperture cards require somewhat more storage capacity than microfilm and are more likely to be misplaced or destroyed. In this digital age, aperture cards are largely irrelevant. Computers are a far more efficient way to store the graphical representation of the specification along with the relevant textual data. Despite this, many companies and institutions continue to use aperture cards. Aperture cards seldom “wear out” since the printed picture can last for centuries and new copies can be made quickly from the punched cards. Because aperture cards are cumbersome and expensive to store, many businesses are scanning them and turning them to photos or searchable pdfs.

How Can I Count Aperture Cards?

You can quickly count your aperture cards by measuring their sizes. Use the ruler to stack the cards to within an inch, then count them. That inch will hold around 100 cards, roughly. Now, count up the linear inches or feet of aperture cards you have and use that number as a ballpark figure for your total.

How Much Does Aperture Card Digitization Cost?

Do you want to know how much it will cost to convert aperture cards to digital format? Aperture card scanning costs are discussed in this article. Once you have a rough estimate of the cost, you may determine whether or not to move through with a digitization project or stick with the hard copies.

Microfilm and microfiche are the two most well-known types of microforms, although aperture cards are typically seen as the odd man out. And then there are those card things, where the film segment is located on the right and there are holes in the card. This is very much how we can tell if the person we’re talking to has aperture cards. Although aperture cards aren’t as well-known as microfilm or microfiche, they serve a comparable purpose and are widely used. Here, we’ll go over the various factors that go into determining the final cost of aperture card conversion, so you can get a feel for the ballpark estimate you may expect to receive. 

The 8 main components that affect the cost of aperture card digitization are:

  • Number Of Cards
  • Type Of Aperture Card
  • Resolution
  • Indexing Specifications
  • Subcontractors
  • Project Schedule
  • OCR
  • Image & Data Output


In order to maximize your office’s productivity, we at Convert My Microfilm offer a variety of services. Contact us when you’re ready to consider aperture card conversion for your company. Contact us at 888-523-4990 or give us a call if you have any queries about aperture card digitization for your company.