NZ Scott

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The Panasonic Leica 25mm f/1.4 received much praise for its sharpness and "Leica look" upon its release in 2011.

I attempted to buy one the next year, but was deterred by the infamous rattlesnake noise made by this lens's rapidly-adjusting aperture blades on my Olympus E-P3 camera. The price was also pretty horrendous (like most lenses associated with the Leica name).

However, when the chance arrived to buy a second-hand one for NZD $325 (USD $225) earlier this year, I couldn't resist.

The lens's build quality is below average for a premium lens. It is mostly made of plastic and is not weather-sealed. The focus ring is nicely damped. The lens hood is a dog, as it cannot be reversed. However, Panasonic must be praised for including a hood, as many Olympus lenses are supplied without them.

The rattlesnaking noise does not occur on my Panasonic bodies (GM5 and G85).

Focusing is snappy on the Panasonic bodies, although this is the case for most of my m43 lenses.

I took some test shots at various apertures to check for decentring. The lens is not decentred, but it is pretty soft in the corners wide-open. This improves upon stopping down, but never quite reaches the consistency of my Olympus MZ 25/1.8. On the positive side, it is a little sharper than the mediocre output of the Panasonic 25mm f/1.7 that I briefly owned earlier this year.

One of the lens's strengths is its bokeh:

f6887b381d964e0dbc0a2701e51b4727.jpg


Colours are pleasing on my Panasonic bodies.

The lens has been criticised in other reviews for producing flare, although this has not matched my experience. Optical aberrations in general seem to be well controlled.

The lens "renders" nicely in terms of how I feel subjectively about its output. I rate it ahead of my Olympus MZ 12/2.0, equal to the Olympus MZ 25/1.8 and perhaps a little behind my other Olympus f/1.8 primes (17mm and 45mm).

I've been shooting the lens professionally and have been happy with the results.

On the whole, this is a very good lens that is perhaps a little over-rated at its price point because of the Leica name and as a hangover from the initial gush of enthusiasm upon its release.

I intend to keep the lens as my main low-light prime for the G85, but will not be selling the Olympus MZ 25/1.8 as the cheaper lens is just as good optically, if not better, and pairs more easily with smaller cameras such as my GM5.

Normally, my reviews are accompanied by several photographs. In this case, most of my sample images were shot professionally and for that reason I cannot post them on a public forum.

Good:

- Bright f/1.4 aperture

- Nice bokeh

- Manageable size

Bad:

- Terrible lens hood

- No weather sealing

- Average sharpness

- Expensive

S

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My Flickr stream:
http://www.flickr.com/photos/scottkmacleod/
 
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....... This improves upon stopping down, but never quite reaches the consistency of my Olympus MZ 25/1.8. On the positive side, it is a little sharper than the mediocre output of the Panasonic 25mm f/1.7 that I briefly owned earlier this year.
can you do a side by side Bokeh comparsion between
  • Olympus 25/1.8 vs
  • PL 25/1.4
I like to see if the difference that extra 0.4 fast aperture does to bokeh.
 
....... This improves upon stopping down, but never quite reaches the consistency of my Olympus MZ 25/1.8. On the positive side, it is a little sharper than the mediocre output of the Panasonic 25mm f/1.7 that I briefly owned earlier this year.
can you do a side by side Bokeh comparsion between
  • Olympus 25/1.8 vs
  • PL 25/1.4
I like to see if the difference that extra 0.4 fast aperture does to bokeh.
The following comparison is from Admiring Light.

The top photo shows the Olympus on the left at f/1.8 and the Panasonic on the right at f/1.4.

The remaining photos were taken at identical apertures.

If you click the link above you'll see a much more detailed comparison. Interesting is the fact that the Olympus is noticeably wider than the Panasonic.

cf2c5db462b44ccc8e9238d3e7eb85d6.jpg


S

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My Flickr stream:
http://www.flickr.com/photos/scottkmacleod/
 
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It was one of my first lenses (I got a used EM1 with 3 lenses) and I got rid of it as I often got really soft results but sometimes very good results... then I found out about shutter shock and it all made sense. I never had the chance to use it with an e-shutter (before the EM1 got the shutter shock upgrade) but judging by some shots indoors at low shutter speeds (less affected by shutter shock) it had a lot of potential.
 
The lens's build quality is below average for a premium lens. It is mostly made of plastic and is not weather-sealed. The focus ring is nicely damped. The lens hood is a dog, as it cannot be reversed. However, Panasonic must be praised for including a hood, as many Olympus lenses are supplied without them.
I have several Olympus lenses and none of them came with a lens hood except the Olympus 25mm f1.8. I was glad about that, but I had to buy lens hoods for my other Olympus lenses.
 
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Thank You for the link photo. I can see the Bokeh Highlight is definitely bigger, but is it WORTH it is another question. :-)
 
Thank You for the link photo. I can see the Bokeh Highlight is definitely bigger, but is it WORTH it is another question. :-)
I would say no.

The real question is whether the extra 2/3 of a stop is worth the extra size, weight and money.

S
 
I have several Olympus lenses and none of them came with a lens hood except the Olympus 25mm f1.8. I was glad about that, but I had to buy lens hoods for my other Olympus lenses.
To be fair I should also note that my Panasonic 20mm f1.7 and Panasonic 14mm f2.5 also did not include lens hoods.
 
The lens's build quality is below average for a premium lens. It is mostly made of plastic and is not weather-sealed.
I have to take issue with this. Plastic does not mean non premium. Far from it. It's thermally & dimensionally stable, tough, hard wearing & good at absorbing impact forces without cracking. Even the latest airliner airframes, very high end bicycles, automotive/motorcycle structural components and the like are now made from reinforced plastics. The lens has been out quite a number of years, I've yet to hear of a common, inherent failure mode, which points in about the opposite direction to poor build quality. Quite the reverse in fact.
 
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The Pana/Leica 25mm f/1.4 was my first m43 prime lens.
I've bought it back in 2012 and it still serves me well. It's a good multi-propose lens.
Maybe there's some sample variation, because i found my copy to be very sharp. Of course it's not stellar at f/1.4 but it may be considered good.
Stopped down just a couple clicks (say f/1.8 or f/2) it's very sharp.
Anyway, it depends on the subject and distance.
If you are doing portraits at close distance (head and shoulders or head to chest) at f/1.4 it outputs very sharp pictures.
But if your trying to capture a landscape at f/1.4 the detail will be barely good. In that case you'd better stop down to f/2 or f/2.5
Having a plastic body may be seen as a positive point because it does not weigh too much. The focus ring is a joy to use.
 
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Yes, I fully agree.
 
Generally agree with your assessment.

I really like this lens. I can't compare to the other 25's, but to me it offers some of the most pleasing output of my m43 lenses. I've got no complaints on sharpness, but I don't shoot often at 1.4. As you say it's sharp in the center and at f1.4, and that's really all I could ask at that aperture. I dare say most 1.4 lenses have weak corners. Stopped down, to f2.8 or f4, it's seems impressively sharp to me.

Agree that the lens hood is a terrible design - can't imagine how anyone thought a square hood that can't be reversed was a good idea.

Price, yes, probably a little high, and you are paying for the Leica name on the lens (and I'm not kidding myself - it's not a $xxxx Leica) However, also consider at f1.4 this isn't really a nifty 50 equivalent as those lenses are usually f1.8. I do like that it's relatively small and light for a f1.4 lens, so I don't mind the plastic build - that's the reason I got into m43 in the first place.

If I were buying from scratch I would probably look closely at the Olympus 25 f1.8 since it's smaller, less expensive, and IQ is probably equivalent.
 
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[RE: Panasonic Leica Summilux DG 25mm F1.4]
[...]
Normally, my reviews are accompanied by several photographs. In this case, most of my sample images were shot professionally and for that reason I cannot post them on a public forum.

Good:

- Bright f/1.4 aperture

- Nice bokeh

- Manageable size

Bad:

- Terrible lens hood

- No weather sealing

- Average sharpness

- Expensive

S
Thank you. This is a very useful post.

Marc
 
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