Perspective: cards that change size on camera

Two halves appear equal in size when compared on camera, until movement reveals an impossible difference. Julio Montoro teaches Perspective with a playing card and also prepares a business-card version. The lesson contains a presentation and an explanation of construction and handling.

Specific materials

You need Perspective's specially printed playing card and business cards, with the designs and dimensions used in the tutorial. An ordinary business card does not automatically replace these pieces. Look for the specific props at your usual magic shop.

The playing-card version also uses half of an ordinary king of clubs matching the design; Julio uses Bicycle. Construction requires a ruler and precision craft knife. Scissors and colored markers can refine or disguise edges. Wonder Cutter is optional for locating the playing card's midpoint: a ruler suffices and is still needed for the differently sized business cards.

Preparing the playing card

The explanation shows how to measure the piece, locate its midpoint and make the partial-depth cut that enables the fold without completely separating the printed prop. Julio recommends practicing on old cards before working on the special piece.

He develops the fold adjustment, trimming of small irregularities and touching up white lines with colors matching the design. The ordinary half accompanying the gimmick is also prepared.

Business-card version

The two business cards are trimmed according to their markings and measured again to fit the preparation to their actual size. The special piece's fold and the other half's finishing create the appearance of a torn business card.

A name printed at two scales strengthens the size difference and helps cover a construction line. Handling is explained with the king of clubs and applied to the business cards through the same sequence.

Handling and camera conditions

The front-facing camera in selfie mode lets you check the framing and the position where the pieces appear equal in size. Julio covers concealment, opening the prepared piece, finger placement and coordination with the verbal explanation of perspective.

The illusion uses the camera's two-dimensional image. The tutorial is intended for video and social media; it does not establish unrestricted live suitability for the same handling.

Practice cutting and finishing separately, then check the sequence in the camera image. Learning combines preparation of the printed props and visual presentation: an ordinary deck alone is insufficient.