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Electronic Metal Mount TTL Auto Focus AF Macro Extension Tube Ring for Canon EF/EF-S

Electronic Metal Mount TTL Auto Focus AF Macro Extension Tube Ring for Canon EF/EF-S

( Item#: D900 )
2018-01-23 08:18:07

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  • CN Warehouse

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Anguilla
Stock in: china

QTY:

camfere.common.specialEnd

camfere.common.specialBuyNum

Features:
Support accurate TTL & Autofocus.
Built-in electric pins and drives.
Compatibility: for all EF and EF-S Canon lenses.
Combined with 3 tubes in different length: 13mm, 21mm, 31mm; totally 7 different combinations.
Made of copper and lead (not plastic) that is more strong.
Upgraded circuitry to work better with digital SLRs cameras and SLR lenses.
Superior lock pin which can tighten the tube joint.
Perfect for macro shooting.
High quality and compact.

Specifications:
Material: Copper, Lead, PC
Color: Black
Macro tube size: 6.2 * 8cm / 2.4 * 3.1in(D * H)
Macro tube weight: 241g / 8.5oz
Package size: 13 * 7 * 7cm / 5.1 * 2.8 * 2.8in
Package weight: 279g / 9.8oz

Auto Extension Tube Distance Reading of Master Lens Image Magnification Ratio

Field Coverage(cm)

Distance From Lens Front to Subject(cm) Exposure Factor
13mm Inf. 0.24 10 * 15 21 1.5
0.5m 0.35 6.9 * 10.3 16 1.8
21mm Inf. 0.40 6 * 9 13 2.0
0.5m 0.51 4.7 * 7.0 14 2.3
31mm Inf. 0.72 3.3 * 5.0 7.7 3.0
0.5m 0.83 2.9 * 4.4 7.0 3.4
13+21mm Inf. 0.64 3.8 * 5.6 8.5 2.7
0.5m 0.75 3.2 * 4.8 7.5 3.1
13+31mm Inf. 0.96 2.5 * 3.7 6.0 3.9
0.5m 1.07 2.3 * 3.4 5.5 4.3
21+31mm Inf. 1.12 2.2 * 3.3 5.3 4.5
0.5m 1.23 2 * 3 4.9 5.0
13+21+31mm Inf. 1.34 1.8 * 2.7 4.5 5.6
0.5m 1.47 1.6 * 2.4 4.2 6.1

Package list:
1 * Metal Macro Extension Tube Set
1 * Bag
1 * User Manual

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Customer Reviews

Average Rating:

4.6

Based On 2 Customer Reviews

  • 5 stars
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  • 4 stars
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  • 1 stars

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  • By y**** December 2, 2016

    It's a cheap way to have the capabilities of a macro lens but requires some knowledge of basic exposure and exposure adjustments when using the extension tubes.I would definitely recommend them to others wanting to explore their photography skills & look forward to working with them.

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  • By w**** December 1, 2016

    These extension tubes work great. The trick to mount is to align the triangular arrow with the alignment mark on camera body or lens adapter (I'm using Canon Mount Adapter EF-EOS M) The white square alignment marks match up only when fully mounted. Sort of great little macro rings for the casual photographer who likes to experiment on the cheap! Decent quality for the price!

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