Panasonic Lumix G 100-300mm f/4-5.6 II OIS : Specifications and Opinions

Panasonic Lumix G 100-300mm f/4-5.6 II OIS, front

Panasonic Lumix G 100-300mm f/4-5.6 II OIS, back

Panasonic Lumix G 100-300mm f/4-5.6 II OIS, top

The Panasonic Lumix G 100-300mm f/4-5.6 II OIS is a tele lens for 4/3, manufactured from 2017. The focus is done by Lens AF motor (non-ultrasonic), it has image stabilization. The average price, when it has been added to the JuzaPhoto database, is 598 €;

34 users have given it an average vote of 9.3 out of 10.

MOUNT

This lens is available with the following mounts:

Micro 4/3: this lens is compatible with mirrorless micro-4/3.

Specifications
Focal lenght	100-300 mm
Angle of view	12.2 - 4.1° (equivalent to a 202-606mm in Fullframe 24x36mm format)
Format	4/3
Max. aperture	f/4-5.6
Aperture blades	7
Lenses/Groups	17 elements in 12 groups
Min. focus distance	1.50 meters
Reproduction ratio	0.21x
Features
Zoom type	Ring, external
Stabilization	Yes (built in lens)
Focus	Lens AF motor (non-ultrasonic)
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	67 mm
Lens hood	Yes, supplied
Weather sealing	No
Weight	520 g
Dimensions	74 x 126 mm
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Reviews

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The following opinions have been automatically translated with Google Translate.

Stefano Gallorini

sent on 21 Settembre 2025

Pros: Excellent lens, in its price range in my opinion it is unbeatable, it offers high performance and also it is really a featherweight and goes almost unnoticed... These characteristics are unthinkable with equivalent focal lengths in other photographic systems

Cons: Tripod bracket is not available

Opinion: In my opinion it is an excellent lens with a high value for money. It offers excellent performance and is very comfortable to carry around, in the backpack it takes up little space and weighs very little. I am really very satisfied with the purchase and thinking about the various upgrades I think I will stay with him for a long time. Passed with flying colors

Ramirez71

sent on 18 Aprile 2025

Pros: overall mechanical quality higher than the economic range of the lens, excellent AF, excellent IS, very quiet, tropicalized, excellent size and weight for the equivalent focal length, optical quality within 10 meters of shooting.

Cons: Optical quality above 10mt, absence of the AF limiter, so light as to forget that it is an equivalent 600 (just kidding!)

Opinion: It is difficult to comment on this lens because it has many merits and only one big flaw: the sharpness above 10/15 MT. I bought it for birdlife for reasons of affordability: with distances around 10 meters, it does quite well and the image quality is very conditioned by the light conditions. At shorter distances (e.g. when shooting passerines) it even becomes very sharp almost like a pro lens, even at 300mm and wide open. When you exceed 15mt the images are less sharp, even with good light and the aperture at f8: this is my experience in the field with the sample in my possession. Now that we have removed the tooth, I can say with certainty that it is a very good lens in terms of construction, very solid, smooth and homogeneous zoom ring, very pleasant and precise MF ring (the best among the Panasonics I owned), also beautiful as an external finish. The stabilizer is excellent: on Em1, where the dual IS does not work, I give priority to the IS of the lens, with Em1 mk2 instead the ibis of the machine seems better to me. Considering the price of both new and used cars, the equivalent focal length, the portability, the result is a compromise perspective that is all in all very valid and very versatile to use on the road or in the mountains where more qualitative solutions impose greater weight and bulk. Another area in which it is pleasant to use is the street for stolen shots, the small size all in all makes you more discreet. I would have preferred it to be like the Lumix G 12-60 f3.5/5.6 that is sharp always and in any case, but it is obvious that with super telephoto you would need optical schemes that integrate something more than just one ED lens, which would have made this zoom very expensive. I recommend it provided that you are clear about the limits it imposes on you: for the use I make of it I sometimes felt a little limited in the final result.

Alberto Martini

sent on 18 Marzo 2025

Pros: Excellent quality/price ratio - small size and weight - solid structure.

Cons: No bracket for tripod mount.

Opinion: It is a lens that is typically purchased to have something cheap, light and space-saving, to be used freehand outdoors, accepting the idea of having to sacrifice brightness and performance in favor of portability. With use, however, it turns out that practically nothing has been sacrificed: the image quality holds its own against lenses of similar focal length, more than double the price and almost triple the weight. The minimum focusing distance is enough to photograph butterflies and dragonflies (my favorite subject) in full frame with excellent definition. The construction is solid and accurate and the low price gives so much serenity in casual use on the field ... The stabilization is excellent, which makes you forget the absence of the tripod bracket. Absolutely recommended lens!

user230080

sent on 10 Agosto 2023

Pros: Weight, size, price, equivalent focal length

Cons: If used in view of its limitations nothing

Opinion: I bought it without great expectations, given the cost (to say I paid 579 euros for a new 600mm is almost unbelievable). It is obviously an economic lens but not one that seems to disassemble just by looking at them. I tried it at home, just to make sure it worked, and then I left for Tanzania crossing my fingers. In good light conditions and with the warning not to use it at TA and maximum focal length (300), this lens is stunning. I took home hundreds of sharp shots with faithful colors. I am very satisfied with the result.

Carlo OZ

sent on 01 Agosto 2023

Pros: In the m4/3 it is a 200-600, for transportability and focal range it is unattainable. Excellent sharpness.

Cons: He accelerated AF so-so. Acceptable, but improvable.

Opinion: Good optics. In birdlife or simply when you need a long optic is a must have in the m4/3 system. Of course there are better solutions (on paper) like the oly 100-400, but what you get is not worth the greater outlay. This objective is a good compromise. I recommend it to anyone who wants to get good results without weighing down the backpack and lightening the wallet too much.

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Panasonic Lumix G 100-300mm f/4-5.6 II OIS : Specifications and Opinions

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Photos taken with Panasonic Lumix G 100-300mm f/4-5.6 II OIS