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Lakshman s

I'm really torn between the XT3 and the G9 and lens choices seem aplenty. This lens oozes quality and somehow, makes me want to pick a camera up someday lol (mobile phone dweller :P)

Steven Douglas

Imagine if you were an Alien, just landed on Earth... you'd think there was a mass beaching along the seafront... hope they don't get thrown back in 🤣

Matthew Lally

As a m4/3 concert photographer this looks like the perfect lens. I can ditch the Olympus 7-14 f2.8, Panasonic 12-35mm f2.8, 15mm f1.7 and 25mm f1.4 without giving up much at all.

Gerald Undone

Nice and thorough as usual, Gordon. Appreciate this. Cheers!


Gosh, who would expect 8~18mm look sharper in the corner than 10~25mm?


This is the best review I've found for any micro 4/3ds lens. Thank you Gordon Laing for your talents and diligence.

Leica 12mm 1.4 + M.Zuiko 25mm 1.2 = no better solutions in the m4/3 system — in my opinion of course ...Leica 10-25mm f1.7 is certainly a great zoom. but it is also very big and heavy...But I'm afraid that it is too late for me to buy this lens ... too much has already happened on the market. He also showed a lot of Lumix in S1 and S1R to buy this lens ... The premiere of this lens should be connected with the new GH6 !!! What is the future of m4/3? Or maybe it's "The last of the… Read more »
NXN Music

If it went to 35mm or 40 it would be a no brainer for me. As that’s my most used focal length of my 12-35 2.8

NXN Music

The G9s autofocus is actually really good! Very underrated

David Frisken

So if you are after a landscape lens that is sharp across the frame, the 8-18mm is the better lens.

Gordon Laing

In-depth review of the Panasonic Leica 10-25mm f1.7 lens for M43!
Check prices at B&H: https://bhpho.to/2NkO8dZ
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Filmed with Sony A6400 and e 24mm: https://bhpho.to/2CqYrEs

Lee Donohue

super excited for this lens! my go-to is the gh5 and sigma 18-35 like many others and there are only two things that bug me about that set-up, the weight and the fact that i have to use a speedbooster, i want to keep the set up as minimal as possible, so far there has not been a single mft that made me think to give up the old set up until now!

Lee Donohue

I wonder though... 10-25 at F1.7 vs 18-35 at 1.2/1.3 (with speedbooster), how noticable the extra bit of light is?


Lens breathing sucks like a beach without sand. Cleared the air now.


Very well done, especially enlightening comparing it to the 8-18, as well as pros/cons for video vs stills. Thanks!

Cycling switchbacks

Not sure the point of these type of lenses at this kind of money, it's the equivalent of 20-50mm f3.4 on full frame, which at $1800 is pretty expensive.

N. D.

I don't understand why Panasonic couldn't think in the long term 10 years ago, and try to have coherence in their lenses by giving them all the clickless aperture (at least for the "Leica" badged lenses), the focus clutch (like Olympus "PRO" lenses do), etc. So many disparities throughout their lenses portfolio.

Jon Bear

A beast of a lens, priced accordingly to its beasties. Too beastly for me

Big World Productions

If this lens had image stabilization I would buy it for my GH5s in a heart beat. the 10mm-25mm is the perfect focal range and the 1.7 aperture is perfect for the low light shooting that I often do. However I do a lot of run and gun shooting, and while I do think stabilization is somewhat overatted, I still need at least lens stabilization to make this a worthwhile purchase.


Very awesome video! Comparisons are appreciated and showing the stills samples of food and coffee show that this could truly be the lens for me. Thanks for sharing the vlogging view, which is my main concern with this lens. Is the weight and size a factor for trying to vlog with it? No doubt it has everything I want for both video and stills. It could be the one lens I carry to create all my content. What are your thoughts for holding it for vlogging with one hand, with or without a mini tripod? Thanks!!