Uploaded July 2025 | Updated September 2026, 1 week ago

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This is my review of the Yongnuo 17mm f1.7 prime lens for Micro Four Thirds (M43). This video will cover how the Yongnuo prime performs on the Lumix G9II and Lumix GH7 for both video and photography.

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Video Chapters:
00:00 - Yongnuo 17mm F1.7 Lens with G9II & GH7
00:19 - Disclaimer (Product Provided)
01:00 - Yongnuo 17mm vs 15mm Leica
01:29 - Fast F1.7 Aperture
01:50 - Low Light Performance
02:23 - Price
02:40 - Weight / Build Quality / Feel
03:04 - No Linear Focus Mode Option / Focus Ring Direction
03:23 - Reverse Focus Experience
03:37 - Non-Removable Lens Hood
04:08 - AF/MF Switch & Aperture Range
04:27 - Image Quality / Bokeh Quality / Starburst Effect
05:10 - Focus Breathing
05:37 - Tradeoffs
05:55 - Chroma
06:16 - No In camera corrections
07:11 - Autofocus Tests
07:51 - Product Showcase AF
08:18 - Focus Pull Speed (Default Settings)
08:42 - Works with e-stabilization
09:12 - Focus Breathing
09:34 - minimum focus

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