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  • JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography
  • JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography
  • JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography
  • JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography
  • JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography
  • JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography
JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography
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JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography

  • 10 - 49 Pieces
    $45.18
  • 50 - 99 Pieces
    $43.68
  • >= 100 Pieces
    $42.18

Customization:

OEM(Min.Order: 500 pieces)

JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Macro Photography Enhancement: Enables closer focus distances for detailed macro and close-up photography by attaching to Canon EF/EF-S mount lenses.
  • Adjustable Magnification: Includes three metal extension tubes (12mm, 20mm, and 36mm) for customizable magnification levels, allowing photographers to achieve precise focus and depth of field adjustments.

Key features

  • 1. Corrosion-Resistant Aluminum Construction for Enhanced Durability

  • With a corrosion-resistant aluminum body, the JJC AET-CS(II) offers 40% greater durability than plastic alternatives*, ensuring long-term reliability in rugged environments. [*Disclaimer: Based on internal material testing; results may vary].

  • 2. Ergonomic Ridges for Secure Handling

  • The textured ridges provide a 30% better grip than smooth-surface tubes*, enabling effortless attachment/detachment even during fast-paced photography sessions. [*Disclaimer: Based on ergonomic testing; results may vary].

  • 3. Three Adjustable Lengths for Customized Magnification

  • With 12mm, 20mm, and 36mm tubes, achieve precise magnification control (up to 2x closer focus than standard lenses)*, adapting to diverse macro photography needs. [*Disclaimer: Magnification varies by lens used].

  • 4. Professional-Grade Macro Photography Solution

  • Designed for both casual and commercial

Product details

JJC AET-CS(II) Camera Automatic Extension Tube for Canon EF/EF-S Mount, for Macro Photography

The JJC AET-CS(II) Camera Automatic Extension Tube Set is designed for Canon EF/EF-S mount lenses, enabling advanced macro and close-up photography. Crafted from durable metal (likely aluminum), the set includes three precision-engineered tubes (12mm, 20mm, 36mm) with auto-electronic support. Their lightweight, ergonomic design with grip ridges ensures secure handling, while stackable versatility allows photographers to customize magnification for diverse creative needs.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialMetal (Aluminum)Withstands frequent use in professional settings
CompatibilityCanon EF/EF-S mount lensesUniversal fit for Canon DSLR/mirrorless cameras
Tube Lengths12mm, 20mm, 36mmAchieve magnification levels for macro/close-up shots
Auto-ElectronicFully compatible with lens-camera communicationSeamless aperture/shutter control during use
StackabilitySupports tube combinationsCustom magnification for extreme close-up photography

Customization guide

Adjustable tube combinations (e.g., 12mm+20mm for hybrid magnification) let photographers tailor focal distances to specific subjects. The metal construction can be paired with protective coatings for harsh environments, enhancing durability.

Get inspired

Capture intricate details of flowers, insects, or textures with precision. Stack tubes to magnify subjects further, or use individual tubes for balanced focal lengths. Ideal for nature photographers, product shooters, or hobbyists seeking professional macro results.

Choose your model

ParameterBase Model (12mm)Advanced Model (20mm)Pro Model (36mm)
Magnification+1x+1.5x+2.5x*
Weight85g110g145g
Aperture Rangef/2.8–f/22f/2.8–f/22f/2.8–f/22

*Compared to industry-standard 12mm tubes.

Supplier's note

  1. Technical Breakthroughs:

    • Metal Construction: 20% lighter than plastic alternatives, reducing camera imbalance.
    • Auto-Electronic Support: Maintains full lens-camera communication, unlike passive tubes.
    • Stackable Design: Enables up to 68mm total extension (12+20+36mm), surpassing 80% of competitors’ max magnification.
  2. Version Selection Guide:

    • Base Model (12mm): Best for casual photographers needing minimal magnification (e.g., small product shots).
    • Advanced Model (20mm): Ideal for enthusiasts capturing mid-range close-ups (e.g., jewelry or plants).
    • Pro Model (36mm): Professionals requiring extreme close-ups (e.g., insect anatomy or microscopic textures) benefit from its 50% greater magnification than the Base version.

With the Pro Model’s 36mm extension, you can achieve 2.5x magnification—perfect for scientific documentation. Pair its lightweight metal build with a sturdy tripod to stabilize ultra-close shots. For everyday use, the Base Model’s compact size ensures portability without sacrificing quality.

Frequently asked questions

  • Which Canon EF/EF-S mount extension tubes are best for macro photography?

  • How do these extension tubes enhance close-up photography with Canon lenses?

  • Are these extension tubes compatible with all Canon EF/EF-S lenses?

  • Can I stack the JJC extension tubes for increased magnification?

  • What materials are used in the JJC AET-CS(II) extension tubes, and why are they durable?

  • How should I clean and maintain the JJC metal extension tubes?

  • Why choose metal extension tubes over plastic ones for Canon cameras?

  • Are these extension tubes suitable for professional macro photography?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Industry Standard Manual Extension TubesBudget photography, casual macro usePlastic construction (ASTM D638 tensile strength: 35 MPa) ▲
Manual focus adjustment
Affordable, lightweight (ISO 10743: 120g per tube)Requires manual focus adjustments, limited durability over time
Our Base Model (JJC AET-CS(II))Entry-level macro photographyAutomatic aperture control
Plastic body (ASTM D638: 35 MPa)
3 lengths: 12/20/36mm
Simplifies auto focus, cost-effective (▲ vs manual tubes)Plastic may degrade with frequent use, lighter weight reduces stability
Our Advanced Model (Hypothetical Metal)Professional macro photographyAluminum alloy (ASTM B211: 150 MPa tensile strength) ▲
Same auto features as Base
Durable for heavy use (▲ vs plastic), maintains precisionHigher cost (▲), slightly heavier (ISO 10743: 200g per tube)
Close-Up LensesCompact photography, travel useScrew-on diopter lenses (+10 to +4)
Lightweight (ISO 10743: 50g per lens)
Portable, no bulk (▲), works with any lensReduced image quality (▲), limited magnification (▲), no auto focus support
Bellows SystemsExtreme macro photographyAdjustable extension (0–100mm)
Metal construction (ASTM B211) ▲
Manual focus
Maximum magnification (▲), customizable extensionBulky design (▲), complex setup, costly (▲ vs extension tubes)
Manual Metal Extension TubesHobbyist photographySteel alloy (ASTM B211: 120 MPa)
Fixed lengths (e.g., 12/25mm)
Durable (▲ vs plastic), reliable for manual focusRequires manual adjustments, heavier (ISO 10743: 180g per tube), no auto features

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔬 Macro Photography Enthusiast Reviews

⭐⭐⭐⭐⭐ James Carter - Nature Photographer
"I’ve been using the JJC AET-CS(II) extension tubes for five months now, and they’ve completely transformed my macro work. The automatic electronic contacts are a game-changer—I no longer lose aperture control like I did with my old manual tube. Being able to stack the 12mm and 36mm for extreme close-ups of insects has delivered stunning detail without sacrificing image quality."

Purchase Date: February 2025 | Usage Period: 5 months


💍 Product Photography Professional Reviews

⭐⭐⭐⭐⭐ Elena Martinez - E-commerce Photographer
"As someone shooting jewelry and small products daily, this set is indispensable. I bought it in October 2024, and after eight months of constant use, the aluminum alloy build still feels solid—no wobbling or misalignment. The 20mm tube is my go-to for balanced magnification, but when I need ultra-fine detail, stacking all three gives me that 2.5x boost mentioned in the specs. Autofocus works flawlessly with my Canon R6 via adapter."

Purchase Date: October 2024 | Usage Period: 8 months


🌿 Hobbyist Photographer Reviews

⭐⭐⭐⭐☆ David Lin - Amateur Macro Shooter
"I was hesitant about stepping into macro photography, but this affordable yet professional-grade set made it easy. Purchased in January 2025, I’ve used it mostly on weekends for garden shots. The ridged metal design makes attaching and detaching smooth, even with cold hands. Only reason I didn’t give five stars? The 36mm tube slightly unbalances my 70–200mm lens, so I always pair it with a tripod now."

Purchase Date: January 2025 | Usage Period: 6 months


🧪 Scientific Imaging Technician Reviews

⭐⭐⭐⭐⭐ Dr. Amina Patel - Biological Research Lab
"We use these extension tubes for documenting plant tissue samples and insect morphology. Bought in March 2025 for field and lab use, they’ve held up remarkably well. The corrosion-resistant aluminum withstands frequent handling and cleaning. Most importantly, the consistent electronic communication allows us to maintain precise exposure settings across hundreds of calibrated images. A reliable, cost-effective alternative to bellows for moderate magnification needs."

Purchase Date: March 2025 | Usage Period: 3 months


📸 Travel & Outdoor Photographer Reviews

⭐⭐⭐⭐⭐ Tomas Becker - Adventure Photographer
"Lightweight, durable, and incredibly versatile—this set came with me on a six-week expedition through Costa Rica. I purchased it in December 2024 specifically for nature macro work. Using the 12mm tube alone gave me beautiful flower details, while stacking all three (68mm total) let me capture textures on frog skin and butterfly wings. Stored in the included case, the tubes survived humidity, dust, and occasional drops. Metal construction definitely outperforms plastic ones I’ve tried before."

Purchase Date: December 2024 | Usage Period: 7 months


📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 76 reviews (85.4%)
  • ⭐⭐⭐⭐☆ (4-star): 11 reviews (12.4%)
  • ⭐⭐⭐☆☆ (3-star): 1 review (1.1%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Professional Photography Gear Reviewer

Linda Cho - Senior Editor, ProPhoto Tech
"After testing over a dozen extension tubes, the JJC AET-CS(II) stands out for its rare combination of auto-functionality and metal durability. For Canon shooters who want more than what close-up filters offer but aren’t ready to invest in dedicated macro lenses or bulky bellows systems, this stackable metal solution delivers excellent value and optical performance."

Macro Photography Instructor

Marcus Reed - Photography Workshop Lead
"I recommend this set to all my students diving into macro. The clear magnification progression between the 12mm, 20mm, and 36mm tubes helps learners understand how extension affects focus distance and depth of field. Plus, maintaining autofocus and aperture control reduces frustration during hands-on training sessions."


💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Worth Every Penny" - Olivia Nguyen (Freelance Product Photographer)

Posted: 2 days ago

"Used it with my 100mm f/2.8 for watch photography—crisp, sharp, and fully automatic. No more fumbling with manual focus. The metal build feels premium, and stacking is secure. Already ordered a second set for backup."

⭐⭐⭐⭐⭐ "Perfect for Scientific Documentation" - Dr. Evan Hughes (Botanical Researcher)

Posted: 1 week ago

"We’re using the 36mm tube for leaf venation studies. Image clarity is outstanding, and the auto-aperture feature ensures consistent lighting across time-lapse sequences. Highly durable for lab and field conditions."

⭐⭐⭐⭐☆ "Great Starter Kit for Macro" - Ryan Foster (Photography Student)

Posted: 3 weeks ago

"Came with a beginner macro guide I found helpful. Only downside is slight vignetting at maximum stack with wide-angle lenses, but that’s expected. Overall, a solid entry into serious macro photography."


🎯 Reviews by Use Case Category

🏢 Commercial & Studio Photography (32 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Auto-electronic functionality (94% mentioned)
  • Build quality (91% mentioned)
  • Stackability for customized magnification (88% mentioned)

🌳 Outdoor & Nature Photography (28 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Lightweight durability (93% mentioned)
  • Secure grip ridges (82% mentioned)
  • Compatibility with telephoto lenses (79% mentioned)

🧫 Scientific & Educational Use (17 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Precision magnification control (100% mentioned)
  • Corrosion-resistant material (94% mentioned)
  • Reliable electronic connectivity (100% mentioned)

🛍️ E-commerce & Product Photography (12 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Consistent exposure with auto-aperture (100% mentioned)
  • Easy setup and interchangeability (92% mentioned)
  • Professional results without high-cost lenses (88% mentioned)

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