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PANASONIC LUMIX G II LENS, 20MM, F1.7 ASPH., MIRRORLESS MICRO FOUR THIRDS, H-H020AK (USA BLACK)
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- 20mm focal length, equivalent to 40mm on a 35mm film camera
- Closest Focusing Distance : 0.2m / 0.66ft, Maximum magnification Approx. 0.13x / 0.25x (35mm camera equivalent)
- F1.7 brightness for beautiful, soft focus, Comprised of seven lenses in five groups
- Used with Lumix G Micro System Cameras, allows for use of the advanced contrast Auto Focus (AF) system
- Lens not Zoomable
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Mountings||Micro Four Thirds|
|Item Dimensions||2.48 x 2.48 x 1.02 inches|
|Item Display Weight||3.53 ounces|
|Item Weight||0.19 pounds|
|Lens Type||Prime lens|
|Macro Focus Range||0.20 m|
|Manufacturer Warranty Description|
|Material Type||Metal barrel, metal mount|
|Maximum Aperture Range||F1.7|
|Maximum Focal Length||20 mm|
|Maximum Format Size||FourThirds|
|Minimum Focal Length||20 mm|
|Minimum Focal Range||20 mm|
|Number of Diaphragm Blades||7|
|Number of Elements||7|
|Number of Groups||5|
|Photo Filter Thread Size||46 mm|
|Shipping Weight||0.4 pounds|
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|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Amazon.com||Amazon.com||Amazon.com||Adorama Camera||Amazon.com|
|Compatible Camera Mount||Micro Four Thirds||Olympus/Panasonic Micro 4/3||Olympus/Panasonic Micro 4/3||Micro Four Thirds||Micro Four Thirds|
|Focus Type||Micromotor||auto-focus||manual-focus||Micromotor||Stepper motor|
|Item Dimensions||2.48 x 1.02 x 2.48 in||3.23 x 3.23 x 4.41 in||2.8 x 2.3 x 2.8 in||2.48 x 2.17 x 2.48 in||2.28 x 1.42 x 2.28 in|
|Item Weight||3.07 ounces||7.84 ounces||0.6 lb||7.05 ounces||4.06 ounces|
|Lens Type||Prime lens||all-in-one-zoom||Wide-angle||Prime lens||Prime lens|
|Maximum Focal Length||20 millimeters||25 millimeters||12 millimeters||25 millimeters||15 millimeters|
|Minimum Focal Length||20 millimeters||25 millimeters||12 millimeters||25 millimeters||15 millimeters|
|Photo Filter Thread Size||46 millimeters||—||67 millimeters||46 millimeters||46 millimeters|
20mm focal length, equivalent to 40mm on a 35mm film camera F1.7 brightness for beautiful, soft focus Comprised of seven lenses in five groups Used with Lumix G Micro System Cameras, allows for use of the advanced contrast Auto Focus (AF) system
From the Manufacturer
Panasonic H-H020A 20mm F/1.7 ASPH Lens for Panasonic/Olympus Micro Four Thirds Cameras
Extremely bright F1.7 optical performance
Ultra compact durable metal body
Durable Micro Four Thirds metal mount
Two aspherical lenses
Multi-coated lens elements reduce ghosts and flaring
The LUMIX G 20mm / F1.7 II ASPH is an amazingly sharp compact lens with superb F1.7 brightness.
Allowing a beautiful soft focus for photos to be even more impressive, the high-speed F1.7 compact single-focal length lens has 2 aspherical lenses for a superb optical performance. It boasts dramatic compactness and light weight despite its F1.7 aperture that enables beautiful soft focus in the background, allowing the subject to stand out impressively. Comprised of seven lenses in five groups, the new system uses two aspherical lenses to minimize both distortion and chromatic aberration, achieving incredibly high resolution corner to corner. The versatile 20mm focal distance (equivalent to 40mm on a 35 mm film camera) is suitable for wide variety of photography including scenery such as sunsets and dimly lit indoor shots taking advantage of its beautiful soft focus.
A new metal finish replaces the original 20mm lenses resin body, and combines with a durable metal mount for a sophisticated premium feel.
This new LUMIX G 20mm F1.7II lens is an update to the original LUMIX 20mm F1.7 pancake lens made popular by Micro Four Thirds system photo enthusiasts because of its razor sharpness and compact size. The new LUMIX G 20mm F1.7 II lens system is also designed to work with the Micro Four Thirds lens standard and is compatible with Panasonic LUMIX G digital cameras.
Optically the new The LUMIX G 20mm / F1.7 II lens offers the same great performance with two aspherical lenses and a multi-coated lens surface for reduced ghosts and flaring. It supports the Contrast AF system for high precision auto focusing. Seven blades give the aperture a rounded shape that produces an attractively smooth effect in unsharp areas when shooting at large aperture settings. The new LUMIX G 20mm/F1.7 II ASPH. lens also features a highly reliable metal mount.
Top customer reviews
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I've been using this lens for about a year now and have absolutelyy fallen in love with it’s image quality and size.
And if you haven’t seen it yet guys, make sure to check out my top 5 best value micro fours thirds lenses list. I’ll put a link in the description box below so go and check it out.
Let’s first take a look at the build quality of this lens.
When you first pick up the panasonic 20mm 1.7, you’ll definitely notice just how small it is. Even though the lens does have a very wide 1.7 aperture, Panasonic has been able to keep it down to a tiny size.
There’s not a whole lot of plastic on this lens either, with a metallic body and metal mount on the rear, it does feel like it’s going to hold up well to years of use.
On the front we have a beautiful focus ring which is incredibly smooth to turn. I really love it. There's no image stabilisation on the lens or a manual focus switch, but that's because it's actually got full time manual focus, which is a nice touch.
Before I used the 20mm 1.7, my favorite focal lensht was a 50mm on a full frame body. But that's all changed now and it’s now 20mm. That equates to about 40mm on these bodies and it's a great field of view for most shots.
Just so you can get an idea of what that focal length is. Here what 20mm looks like. And just for comparison, this is what 12mm looks like on a micro four thirds body and here is what 32mm looks like.
So for me, it's a very happy medium at 20.
Let's now talk about bokeh, or the background blur behind your subject.
Before I found this lens, I never thoguht that you could get such shallow depths of field with a) such a small lens, b) a wide-ish angle of 20mm and c) on a small micro four thirds camera. But as you can see, I was wrong.
I've had such a blast shooting with this lens, as it produces some stunning bokeh. It's creamy, it's smooth and it's not distracting.
Not only that, even at wide apertures the shots are still tack sharp and you're still getting some lovely bokeh. I've very impressed
The 20mm 1.7 has a minimum focusing distance of around 20cm, which isn't the closest focusing lens you'll find.
That's not to say you can't get some nice detailed shots with it, as you can see here, as we zoom in to 100%.
But it's definitely not a dedicated macro lens.
Now one of the biggest issues people have had with this lens is it's autofocus speed, and you know what, I havent had any issues with it.
I've consistenly found the 20 1.7 to have very good autofocus speed at all apertures, comparable to my dslr with a similar lens.
The only time I'd ever have any problems withe autofocus is in very low light conditions, and then i'd simply switch to manual focus, no biggie for me.
So if you’re worried about all of the autofocus probelms you read online, I'd forget it, it's a great focusing lens especially for its size.
Initial reviews implied that, well, they *didn't* improve on it. This refresh was cosmetic, and the lens was identical optically. I decided to take a pass.
That was, of course, until my E-PM1 (with the original lens attached) went for an unexpected journey on the roof of my car. Suffice it to say it ended well for neither camera nor lens, and when I went to replace the 20mm I discovered that the new version was cheaper than the old. An easy enough decision!
What follows is by and large my original review. Really, the only things that have changed are appearance and the weight, and those only in vanishingly small ways. The lenses are otherwise, as near as I can tell, functionally identical. I've tested this lens on a GF3 and on the E-M5.
First off, this lens really is wonderfully compact - it's physically a perfect match for small bodies. There are smaller pancake lenses of similar focal lengths (the Panasonic Lumix 14mm f/2.5 and the Olympus 17mm f/2.8), but neither are as bright; I think the 20mm hits the sweet spot. The lens has a massive manual focus ring (which is a control for the M43 "focus by wire" electronic focusing system) which is easy enough to use once you get the hang of it.
The updated version now ships with smaller lens caps. It's otherwise basically the same size as the original.
As for the results... well, you can read the charts, but suffice it to say that this is a very good performer. It's sharp wide open, with some very slight softness towards the corners which can be improved by stopping down.
The lens does rely on software correction to deal with some fairly strong light falloff towards the corners at wide apertures. If you don't want to use software correction, note that the vignetting can be resolved by stopping down to around f/4.
Autofocus is as accurate as any other lens I've tried, and low light AF hit ratio is good (thanks, no doubt, to the large aperture). AF speed is adequate but not exceptional, and it's a bit louder than would be ideal for video if you intend to use the internal mic.
Oh, and don't be scared off by the "odd" 40mm equivalent focal length. If you're used to 50mm as "normal" from the film era, I think you'll find 20mm quite pleasant. The little extra width can be nice to have at times.
No discussion of this lens would be complete without mentioning its larger, brighter cousin, the Panasonic Micro 4/3 25mm f/1.4. I own both lenses, and the 25mm f/1.4 is arguably better in several respects; in addition to its faster aperture, the 25mm boasts improved autofocus performance, which is somewhat quieter and faster than the 20mm (primarily when "hunting," which is when the 20mm slows down). The minor aperture advantage of the 25mm is on its own not very significant, but the combination with a longer focal length does provide it with a noticeably narrower perceived depth of field.
So why, then, would I go back and buy the "worse" 20mm all over again? It comes down to size. While the 25mm f/1.4 is great, it's also twice as big, which is why I consider the 20mm f/1.7 a must have for use on smaller bodies (which might be placed in a jacket pocket or purse). It strikes the perfect balance between brightness and size when paired with a "rangefinder" style body (e.g. the Panasonic GM1, Olympus E-PM2, etc). It's a great all around performer and the cost, although high, is not totally unreasonable for something of this quality.
Bottom line: this is a must own for anybody with a small M43 body. And if you find yourself torn between the "new" and "old" versions, or contemplating an upgrade? There's really basically no difference of note. Stick with what's cheaper (or what you already have!)
The big thing here is that this lens is quite small and weighs practically nothing. When I have it on my camera it feels very light and is easy to tote around with camera strap around my neck or just using the grip and hand holding it. The Micro 4/3 system is already a nice size for portability with small lens sizes. I have now acquired 3 micro 4/3 lenses all that would fit in a small pack with the camera. This is the big benefit of this format that I like over my Rebel T3i and its lens combinations.
The only thing to keep in mind is that the focusing isn't blazing fast (certainly not enough for sport). For fast action you need to prefocus or scale focus (which is a bit difficult because there isn't a depth of field-scale).
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