Lesson 2: close up
Duration of Days: 3
Lesson Objective
Students will demonstrate technical mastery of a fully digital camera with a macro lens to capture sharp, high-magnification images. They will apply principles of Depth of Field (DoF) and manual focus to produce a portfolio of macro-style images.
How does changing your physical distance from a subject alter its visual impact and narrative?
What technical trade-offs occur when you prioritize extreme detail over a wide field of view?
How can we use close-up photography to reveal hidden composition elements such as formal balance or the element of texture.
Macro Photography: Images taken at 1:1 magnification or greater where the subject is life-size on the sensor.
Close-Up Lens: A secondary magnifying lens (diopter) that screws onto the front of a primary lens to reduce minimum focus distance.
Depth of Field (DoF): The zone of acceptable sharpness; in macro, this becomes extremely shallow.
Magnification Ratio: The relationship between the subject's size in real life and its size on the camera sensor.
Diopter: The unit of measurement for the optical power of a close-up
National Core Arts Standards (NCAS): PH.VA:Cr2.1 (Experimenting with various materials/tools), PH.VA:Pr4.1 (Analyzing criteria for selecting work for a portfolio).
Evidence-Based Reading: Students analyze technical manuals and lens schematics, reflecting the "Analysis in Science" cross-test score on the SAT.
Math: Calculating magnification ratios and inverse-square law for lighting integrates algebraic reasoning and ratios.
SBA Writing: Composing artist statements that justify technical choices (e.g., aperture selection) supports informative/explanatory writing goals
Description: A hands-on unit focusing on the "Macro" mode and close-up filters for the Canon T7.
Purpose: To teach precision, patience, and the physics of light at close range.
DOK Level 3-4: Students don't just "take photos"; they must strategically solve problems like motion blur and shallow focus
Cultural Identity: Use close-up lenses to photograph heirloom jewelry, fabric patterns from traditional clothing, or spices from a student's home kitchen.
Science Integration: Partner with biology classes to document local flowers or to emphasizing environmental objects.
"Macro Mode is a Macro Lens": Students often think the "flower icon" (Macro Mode) is the same as a dedicated lens. Clarify that it only optimizes camera settings, not physical magnification.
Aperture Confusion: Students may think f/22 (small aperture) is "big" because the number is large, leading to unexpected diffraction.
Auto-Focus Reliance: In macro, AF often "hunts." Teach manual focusing by moving the camera body slightly forward and backward.
Support: Provide "Focus Rails" or tripods for students with motor challenges to stabilize the Canon T7.Enrichment: Introduce Focus Stacking—taking multiple shots at different focus planes and merging them in Adobe Lightroom
- Formative: A "Focus Challenge" where students must keep a specific part of an insect's wing or flower stamen sharp.
- Summative: A digital portfolio featuring five "Abstract Close-Ups" with a 250-word technical reflection.
- Peer Review: Critique sessions focusing on the effective use of DoF and "Working Distance"
- Hardware: Digital camera for example-Canon EOS Rebel T7, and screw-on close up lenses +4, +10 diopters- or a true macro lens.
- Software: Canon Digital Photo Professional 4 for post-processing.
- Texts: macro photography book for example-Understanding Close-Up Photography by Bryan Peterson or Close-Up Macro Photography by Tracy Hallett.