Uploaded November 2021 | Updated September 2026, 2 days ago

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Astro 4K Video.

Test: Canon Extenders for Astrophotography.

A comprehensive look at the Canon Extenders for lunar and solar astrophotography complete with information and test charts.

Copyright ©2021 Demenzun Media. All rights reserved.

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Video Description Links:

Canon Extender EF 1.4X III
shop.canon.ca/en_ca/p/extender-ef-1-4x-iii-1

Canon Extender EF 2X III
shop.canon.ca/en_ca/p/extender-ef-2x-iii

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• Image and music content pages •

stock.adobe.com/contributor/208400691/David%20Green
stock.adobe.com/ca/contributor/206928384/jason

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This video was created by Demenzun Media in British Columbia Canada.
Portions of this video may contain free stock content from Pixabay at pixabay.com

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Soundtrack:

Sail Away by | e s c p | escp-music.bandcamp.com
Music promoted by free-stock-music.com
Attribution 4.0 International (CC BY 4.0)
creativecommons.org/licenses/by/4.0

Videos and Images:

HST Orion Image from the Hubble Space Telescope.