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Product Description
Manufacturer's Description
Panasonic H-X025E Interchangeable Digital Lens LEICA DG SUMMILUX 25mm / F1.4 ASPH. Based on the Micro Four Thirds System Standard
Product Description
Made up of nine glass elements in sevengroups (including two aspherical lenses and one Ultra High Refractive (UHR) glasselement), the Panasonic H-X025E standardlens boasts a 25 mm focal distance and an f/1.4 aperture to provide clearpictures with no ghosting or flare.
The special coating with nano-sizedstructure on the surface of the H-X025E helpsto reduce reflection, dramatically minimising blur.
Meanwhile, since it's based on the MicroFour Thirds System standard, the Panasonic H-X025E can take full advantage of autofocus for high-speed, stress-free shooting whenmounted on compatible cameras.
Lens System:
RAID Level : Lens
Intended For : Digital SLR
Focal Length : 25 mm
Lens Aperture : F/1.4
Minimum Aperture : F/16
Type : 50mm
Data Link Protocol : 0.11
Network / Transport Protocol : 30 cm
Remote Management Protocol : Automatic, manual
Network Services Compatibility : 47 degree(s)
Features : Aspherical lens, Ultra High Refractive (UHR) index lens
Compliant Standards : 46 mm
Diaphragm Blades : 7
Expansion Bays : Nano Surface Coating
Interfaces : Micro Four Thirds
Miscellaneous:
Included Accessories : Dust cap, lens cap, lens case
(free converter plug included if required)
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Customer Reviews
Most Helpful Customer Reviews
31 of 31 people found the following review helpful
Note that I also have the Panasonic 20mm and the Nokton 25mm so I'll mention some of their differences.
It's pretty exciting to get hold of the first f/1.4 lens for the Micro Four Thirds system. Thankfully, the Leica brand didn't add a whole lot more to the price tag, although I still think it's a bit pricey.
This lens is like the big brother of the 20mm. It's twice the weight at 200g, and almost twice the height. The construction quality is good, mainly plastic, except for the metal mount. It has a 46mm filter thread - yeah, I can use my 2-stop ND filter from my 20mm lens.
The focusing ring is nicely damp and turns smoothly.
It comes with a carrying pouch and a relatively large plastic rectangular lens hood. You know that 46mm vented lens hood people are using for the 20mm lens? I'm actually using that instead, very little light fall-off and it's much smaller.
Auto-focus is silent and quick. However, auto-focus during movie mode isn't that fast but it's not just this lens. Manual focus is focus-by-wire and it's a pleasure to focus with the responsive focus ring.
The sharpness varies at different apertures. At f/1.4, the corners are slightly blur, centre sharpness is still alright. f/2.8 is tack sharp at centre, with the subjects at corners nearly in focus. The lens is tack sharp at f/4. I use it often at f/1.4 and the images are perfectly alright, provided you don't pixel-peep.
The depth of field is wonderful. Bokeh is creamy. This lens has a shallower depth of field than the 20mm lens. Even if the subject is near to the background, it can still blur the background effectively (more than the 20mm lens). There's a 3D feel to the photos that are shot this way, together with the background blur is very pleasing.... Read more ›
It's pretty exciting to get hold of the first f/1.4 lens for the Micro Four Thirds system. Thankfully, the Leica brand didn't add a whole lot more to the price tag, although I still think it's a bit pricey.
This lens is like the big brother of the 20mm. It's twice the weight at 200g, and almost twice the height. The construction quality is good, mainly plastic, except for the metal mount. It has a 46mm filter thread - yeah, I can use my 2-stop ND filter from my 20mm lens.
The focusing ring is nicely damp and turns smoothly.
It comes with a carrying pouch and a relatively large plastic rectangular lens hood. You know that 46mm vented lens hood people are using for the 20mm lens? I'm actually using that instead, very little light fall-off and it's much smaller.
Auto-focus is silent and quick. However, auto-focus during movie mode isn't that fast but it's not just this lens. Manual focus is focus-by-wire and it's a pleasure to focus with the responsive focus ring.
The sharpness varies at different apertures. At f/1.4, the corners are slightly blur, centre sharpness is still alright. f/2.8 is tack sharp at centre, with the subjects at corners nearly in focus. The lens is tack sharp at f/4. I use it often at f/1.4 and the images are perfectly alright, provided you don't pixel-peep.
The depth of field is wonderful. Bokeh is creamy. This lens has a shallower depth of field than the 20mm lens. Even if the subject is near to the background, it can still blur the background effectively (more than the 20mm lens). There's a 3D feel to the photos that are shot this way, together with the background blur is very pleasing.... Read more ›
8 of 8 people found the following review helpful
This is the nearest thing to having an autofocus Leica lens on your Panasonic G or Olympus micro four thirds camera. At twice the weight and price of the legendary Panasonic 20mm 1.7 lens, this is a serious investment and feels like it, being obviously well put together when you hold it in your hand. At 50mm equivalent field of view (to 35mm systems) this is the so-called "standard" lens, producing a field of view that is thought to feel very natural. I like it better than the 20mm, because with that lens the 40mm equivalent field of view can seem a bit odd - neither tele nor zoom, and not standard either. The 20mm also distorts faces if you shoot close-in portraits, which is often not flattering.
This lens give you f1.4, meaning the ability to get shallow depth of field, nice bokeh, and shoot in low light without cranking up the ISO excessively. At f1.4 the centre is pretty sharp, with the edges being soft. From f2.8 everything is pretty damn sharp. MTF lab tests on camera and lens review web sites show that on paper, this lens is not as sharp at the centre as the Panasonic 20mm f1.7 lens, but in practice shots from this lens often seem better to the eye - I believe it is because there is something of that Leica look about them - to do with colour rendition of the lens coatings and contrast. I know this is not a 'true Leica' lens made in Germany by Leica A.G. but it does have a Leica quality to the contrast and bokeh.
Is this THE micro four thirds portrait lens? Well, I'm not sure. Olympus have two fantastic lenses that excel at portraits - their very reasonably priced 45mm for micro four thirds and their stellar 75mm, but the latter is expensive.... Read more ›
This lens give you f1.4, meaning the ability to get shallow depth of field, nice bokeh, and shoot in low light without cranking up the ISO excessively. At f1.4 the centre is pretty sharp, with the edges being soft. From f2.8 everything is pretty damn sharp. MTF lab tests on camera and lens review web sites show that on paper, this lens is not as sharp at the centre as the Panasonic 20mm f1.7 lens, but in practice shots from this lens often seem better to the eye - I believe it is because there is something of that Leica look about them - to do with colour rendition of the lens coatings and contrast. I know this is not a 'true Leica' lens made in Germany by Leica A.G. but it does have a Leica quality to the contrast and bokeh.
Is this THE micro four thirds portrait lens? Well, I'm not sure. Olympus have two fantastic lenses that excel at portraits - their very reasonably priced 45mm for micro four thirds and their stellar 75mm, but the latter is expensive.... Read more ›
8 of 9 people found the following review helpful
By Frank
This lens is optically very good. However there are two points not usually mentioned in published reviews. Firstly, the camera (any M4/3 camera) in P mode would tend to set a wide aperture and a fast speed. It would stick to F1.4 until the speed is well over 1/1000s. I suppose this is what most users want as we are reluctant to stop down such a fast lens. Still this should be kept in mind in use and if you actually want to stop down you need to monitor the aperture closely. Secondly, this lens can be noisy (a kind of buzzing sound). Especially in bright sunlight, it does an "aperture dance" whereby the camera keeps altering the aperture very rapidly to obtain a sensible and somewhat stable viewfinder/LCD brightness. This is common to all wide aperture M4/3 lenses, but some of them have more noisy aperture and aperture motors than others and this one is very loud. It's easily audible and even conspicuous when I used the lens near a dual carriage way with cars and trucks passing 10 metres behind my back. Fortunately indoors in relatively dark conditions the aperture does not dance and the lens becomes very quiet. Another side effect of this aperture dance is when shooting a bright scene, the aperture is kept small for viewing, then when you focus it's opened up fully, then when focus is locked it shuts down to very narrow again, and then finally when you commit to shoot it opens up to the shooting aperture before the shutter action. All of this adds delays, mechanical vibrations, and noise too the various stages of operation. It is slower and feels clumsier in bright sunlight than indoors, a bit counter-intuitive. If you are accustomed to the virtually silent zooms this noise could be unsettling at first, and this is not just on Olympus cameras.... Read more ›
Most Recent Customer Reviews
3.0 out of 5 stars
Images slightly broach.
Very sharp. Excellent build quality. Fast and precise focusing.
Makes a strange noise in the body Olympus E-M5.
Images slightly broach. Read more
Makes a strange noise in the body Olympus E-M5.
Images slightly broach. Read more
Published 5 days ago by Jose Ricardo Maciel Rubiao
5.0 out of 5 stars
Perfect lens for MFT.
If you want to have a good MFT tool for everyday, this lens is a must. Very fast, it guarantees superb quality of images you take. Read more
Published 22 days ago by K. Shevchenko
5.0 out of 5 stars
I regret not buying this sooner
I have a lot of Micro-Four Thirds (MFT) lenses, but this is currently my favourite. I didn't buy this when it first came out, because I already had the 20mm F1.7 on my GF1. Read more
Published 3 months ago by Al
4.0 out of 5 stars
Good lens, but expensive for what it is
This is a decent lens, but it isn't streets ahead of the Panasonic 20mm that I also own. I'm a fussy photographer and have compared results from the two lenses carefully. Read more
Published 6 months ago by wildwestimages
5.0 out of 5 stars
Fine lens
I found this lens to be great. Fast - wide open delivers very good performance and a bit closed things are going only better. Very good choice.
Published 7 months ago by tg
4.0 out of 5 stars
Photos like a pro
I hadn't quite realised how good my shots could be. This gives subject real pop when DOF is important. Read more
Published 17 months ago by neeli
5.0 out of 5 stars
H-X025E lens
Its brilliant, takes amazing photos in really low light. I'm using with my GF1. Its taking great snaps with plenty of aperture blur. makes me look like a pro. Read more
Published 18 months ago by Yatin
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