Little known fact, Richard uses a different $20 note for every test shot. Just subtly flexing.

Santa came early this year. This lens is everything that I could have wished for. People focus too much on the depth of field, but for me it is the light gathering ability of 1.7 in a zoom that is really useful, and paired with the 10-25 is ideal. Thank you Santa.

This review helped very much. I decided to get the Leica 25-50mm f/1.7, thanks for sharing Richard!!

Thanks for a great review. It would be great to see a side by side comparison between this and the 2 2.8 zooms

On the GH5M2 you can set the aperture ring to 1/3 increments or smooth. So that feature is available in the new bodies

I am very happy with my 42.5 nokticon on the G9, but I am very impressed that the zoom is so good.

I need this. The 10-25 is so good. Perfect portrait lens.

As the owner of the Panasonic Leica 10-25mm f1.7 which remains on my Olympus EM1 Mk3 90% of the time, I can only imagine how superb the build and quality of the 25-50mm f1.7 is (which I can't afford after getting the 10-25mm for an arm and a leg!). Even as an Olympus camera owner, I'd say Panasonic definitely hit out of the park with both lenses - truly excellent lenses. Thanks for the wonderful review as usual, Richard.

The 10-25 feels great on a gx8 on paper it’s big and heavy but in real it’s a nice lens feels great on a bigger body the gx8 is the smallest one. I think

I have the 42.5mm Nocticron. It is sharpest between f4.0-4.5.

Interesting how Panasonic have made the fastest zooms within reason, and Olympus differentiated themselves with slower but longer range zooms.

I feel like my 10-25mm and 42.5mm Nocticron is enough to cover everything I shoot, going to pass on the 25-50mm zoom personally.

This is the first video that has actually given me a reason to consider this lens. I had been considering both the Lumix-Leica 25mm and 42.5mm lenses, and this could replace both with only 30g added weight in the bag. Of course, I was also considering the Sigma 56mm as a possible 42.5mm replacement, and that changes the dynamics. Will give it more thought.

Love to see Panasonic finally releasing this lens! Great review again Sir Richard.

I actually don’t mind the look of the sun stars, especially at f16, in my opinion. I can see myself using this 25-50mm while recording video or stills, for example, at a concert. The lens’ added reach over the 10-25mm would be a benefit when further back from the stage. And the bright 1.7 aperture would be great in low light too. Excellent review, Richard!

Price isn't as bad as I thought it'd be. Looks like a good bargain compared to the more expensive portrait lenses.

Thanks I purchased this lens today for my GH6

Great review Richard. Spot on about what i wanted to find out. Thank you

Looking at the first reviewers on this lens, and its looking very good!

Just bought this ... this one lens makes a few of my other lenses redundant now. Time to sell up !

10-25 is more unique. I know they want to make both lens equal in size and weight. But I personally would like they make it longer to 65/70mm and around 800 gram is a good trade.

Thanks Richard. Really appreciate your reviews.

is this Leica 25-50mm f/1.7 a lens you want to add to your camera bag?

That lens is massive.

Thanks Richard! I'll be saving a long time for this one XD

Better that the nocticron? Hell no! Though I use both the 10-25 and 42.5 nocticron for 2 cam interviews and at times I could have done with zooming out a touch for better framing. Our next project is a drama series and due to the guerrilla style it will be shot in, the 25-50 makes perfect sense paired with the 10-25 and bgh1.

As a G9 user I will only bite if Pana releases more substantial info on GH6. On that note: The secrecy around new releases (exact specs and timelines) is counterproductive. If I already knew GH6 would be released (month) with the rumoured specs (1.2.3.) I could already make a buying decision, secure budgets and I might also already make a buying decision for this lense - as well as 10-25mm. Withouth this info I might decide for another camera (Sony a7IV) - and then certainly not buy more lenses for this system. I might not be the only one sitting on the fence?!

Super helpful video! Strongly considering this one.

Great, thorough, balanced review.

Man this lens looks incredible

How this compare to the Panasonic42.5mm F1.2 ASPH lumix G? Do you think this or the zoom is better?

It looks an impressive lens. Wondering has plan for more or a third f/1.7 lens.

Hi there - which lens are you using to film this video (your indoor shot)? I love the look of the 25mm-50mm look but I’m afraid that it may be too close for talking to the camera or my music video covers… Thanks!

Interesting about the parfocal test. Jordan and Chris on dpreview had a copy that shifted focus a lot when zooming.

thanks a lot for great real world testing.👍🏻

Hi Richard. Can't believe I only discovered your channel now! Great review as well the one on 10-25. Hope if you don't mind me asking that eternal question of what to get. Welcome advise from other posters too. I am mainly a stills shooter using a GH5 (didn't know they were going to release the G9) and my first panny leica lens was the 25mm f1.4 on a GH3. Always loved it, more than the 17.5mm f1.7 which was my other. But the Nocticron definitely moved things up a notch and I was hoping Panasonic would release an update, bigger diameter 25mm prime. Alas they released 2 zoom lenses with the 25mm at either ends. Which one has better picture quality at 25mm? I already have a nocticron and the standard 12-60mm. I suppose at first glance would be the HX1025 but which gives the best picture at 25mm?

Is the 25-50 zoom or 10-25 a good color "look" match to the 42.5 nokticon or really require a lot of fine tuning? I ask not because I am an expert, but because I am not. The 42.5 is so good that I hardly have to do anything.

Is there a date on the gh6? These lenses seem pretty nice but don't intrigue me very much lol I'm sure they would be great to use. I just recently got the olympus 12-40. Lot of fun to use

That is an amazing review. subbed

How is this lens working on an Olympus OM-D5 III body ?

Looks really nice but wow it's a chunky boy!

Corner to corner

First! 😁 1.7 zoom that's cool

He will repeat until it is clear that f1.7 is f1.7 and not f3.4, as the FFFanboys would have you believe

You cannot test parfocality with AF on. This lens is not parfocal by any stretch of imagination. Take a look at DP Review's review.

How Many Times will Richard say…1.7 ???? If u write 25 times or more..U Win!

he looks like ET