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Web Code: 568PAV035  •  Mfr Code: HRS100400
Was: $2,399.99 CAD
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PANASONIC LEICA 100-400MM F4-6.3 OIS is rated 4.0 out of 5 by 2.
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Extend the life of the Manufacturer’s Warranty by up to 3 years with Henry’s Extended Life Plan. Includes:

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Product Highlights
  • For Mirrorless Micro Four Thirds
  • Power Optical Image Stabilization
Read More
  • For Mirrorless Micro Four Thirds
  • Power Optical Image Stabilization
  • Splash and Dustproof
  • Experience a Mirrorless Micro Four Thirds camera lens design with a significant reduction in size and weight. Up to two-thirds smaller and nearly one-fifth the weight of comparable DSLR 35mm long zoom lenses.
  • 100-400mm F/4.0-6.3 LEICA VARIO-ELMAR high-performance lens for nature photography (200-800mm 35mm camera lens equivalent).
  • Ideally suited for the outdoors with a splash and dustproof sealed body. (When combined with splash and dustproof LUMIX G Mirrorless camera models.)
  • Impressive image stability with integrated LUMIX Power Optical Image Stabilization (O.I.S) and LUMIX Dual I.S. camera compatibility.
  • Integrated rotary tripod mount and built-in sliding lens hood.
  • Lens-mounted control switches: Full/Limit, AF/MF and O.I.S.
  • Panasonic LUMIX Mirrorless Micro Four Thirds lenses deliver a no-compromise approach to optical performance for modern interchangeable camera enthusiasts. As an optical partner of legendary LEICA Lenses, the LUMIX *100-400mm F4.0-6.3 Lens features the highest standards of detail and sharpness. Built for the outdoors, this lens features a splash and dustproof design when mounted on a compatible LUMIX G Mirrorless camera. With Dual I.S. (Image Stabilization) compatibility you'll shoot with unprecedented hand-held stability.
  • Make the switch from bulky DSLRs to the smaller, lighter, more compact Mirrorless Micro Four Thirds system cameras and lenses from Panasonic LUMIX
  • (*200-800mm 35mm Camera Lens Equivalent)
  • Mirrorless Design & Portability:
  • Panasonic LUMIX was 1st in mirrorless and leads the way in mirrorless lens innovation. The Micro Four Thirds format offers a significant reduction in size and weight vs traditional DSLR camera lenses.
  • LEICA Lens Optics:
  • LEICA VARIO-ELMAR optical performance ranging from 100-400mm with F/4.0-6.3 aperture. (200-800mm 35mm camera lens equivalent).
  • Splash and Dustproof:
  • The H-RS100400 is ideally suited for the outdoors with a splash and dustproof sealed body.
  • Stabilized Optics:
  • Integrated LUMIX Power Optical Image Stabilization (O.I.S) and LUMIX Dual I.S. camera compatibility assure maximum hand held stability. Additional control from lens-mounted control switches: Full/Limit, AF/MF and O.I.S.
  • Built-in Lens Hood and Tripod Mount:
  • Integrated rotary tripod mount and built-in sliding lens hood.

Lens Performance

Lens Type: Mirrorless Lenses
Focal Length: 100-400mm
Maximum Aperture: f/4.0-6.3
Aperture (Max. & Min.): Max: f/4.0-6.3, Min: f/22
Camera Mount Type: Micro Four Thirds
Camera Format: Micro Four Thirds
Angle of View: 12 degrees (Wide) to 3.1 degrees (Tele)
Minimum Focus Distance: FULL: 1.3m/4.27ft, LIMIT: 5.0m/16.4ft
Maximum Close-Up Magnification: 0.25x
Groups/Elements: 13 Groups/20 Elements
Diaphragm Blades: 9

Lens Features

Autofocus: Yes
Tripod Collar: Yes


Filter Thread: 72mm
Dimensions (DxL): 171.5 x 83mm (6.75 x 3.3 in)
Weight: 985g (34.74oz)

Additional Information


What’s Included:

  • Panasonic LEICA DG VARIO-ELMAR 100-400mm F4.0-6.3 ASPH. POWER O.I.S. Lens
  • Lens Cap
  • Lens Rear Cap
  • Lens Storage Bag
  • External Tripod Mount
  • Lens Hood
Rated 3 out of 5 by from Great Lens, support not so great I have had this lens for about 18 months, and I find that it is very good lens, compact and reasonably sharp with good image stabilisation. I was very satisfied with Henrys service. However it is important to know that these (Leica) lenses can not be repaired outside of Japan. Once the warranty period is over, if the lens needs repair, the formal policy is that your only option is to purchase a refurbished lens, which can cost almost as much as a new lens. Note also that rplacement parts like lens hood, tripod foot and lens caps are not available from Panasonic.
Date published: 2018-05-18
Rated 5 out of 5 by from A stellar lens "A stellar lens I purchased this lens from Henryђs Ottawa shortly after getting my Lumix G5 with the 12-60mm kit lens. Though the 100-400 is expensive and a bit hefty for this format, you wonђt find a better nor as useable long zoom lens for this format (or arguably any format IMO). In this review I wonђt repeat the features readily available on the Henryђs and Panasonic websites. However I will mention the results of some pixel-peeping tests Iђve done with this lens on my G85. Both the camera and lens were updated with the latest (free from Panasonic web site) firmware updates, which enable the lens to work with the G85ђs Dual IS2 image stabilization system. I always test my lenses using the Edmund Scientific Companyђs Lens Resolving Power chart, with the camera on a tripod, using electronic flash, and with the image stabilization turned off as recommended by Panasonic when using a tripod. Results are viewed on a monitor at 200% magnification, which is far more scrunity than most audiences or viewers will ever give a photograph. As with the 12-60mm kit zoom for the G85, I found the 100-400 to be almost unique among all zoom lenses Iђve ever tested, in that it delivers (within about 10% line pairs per millimetre viewed at 200% magnification) the same image resolution at every focal length tested (100, 200, 300, and 400), both wide open and stopped down to f:8, from the centre to the corner of the image frame. There is a slight drop off in sharpness at 400mm relative to the other focal lengths, but this is 10% and hence no more than the difference I normally see between my best zoom lenses and my best prime lenses tested in this way at the same focal lengths and apertures. No one but an obsessive pixel-peeper will ever notice or care about that sharpness difference. And the resolution quality is as good as it ever gets on any Lumix MFT camera and zoom lens Iђve every owned. Because the lens delivers its full image quality at maximum aperture at all focal lengths, there really is no need to stop this lens down except perhaps for exposure control, depending on what shutter speed you want to use. At 100mm never mind 400mm (200mm vs 800mm full frame equivalent), and except at infinity or distant focus, you wonђt get much depth of field no matter what aperture you use, so go with wide open and maximum bokeh, concentrating only on the shutter speed and ISO for exposure. In my hand-held-stabilization tests with this lens, to my standards of sharpness, I can safely use this lens at 1/80 shutter at the 400mm end, and 1/13 shutter at the 100mm end. For any conceivable outdoor daylight conditions where Iђm not photographing a bird or an animal, that gives me all the hand-held stabilization Iђd ever want. For wildlife and bird photography, I wouldnђt use a shutter slower than 1/500 anyway, which with the IS and the G85 is not remotely an issue for hand-held stills even at 400mm. However, given the extreme magnification, I would not recommend using this lens for video work except on a sturdy tripod (IS turned off) or maybe a good monopod (IS turned on however). There are limits to what even 5-axis Dual IS can achieve hand held at 400mm (800mm FFE) magnification in video, even trying to hold the camera steady, never mind panning. Before trading in my old Lumix 100-300mm Mega OIS zoom lens on the 100-400, I did the same resolution and stabilization tests with that lens and my G85. I found that the 100-400 is consistently sharper than the 100-300 at all focal lengths and apertures, centre and corner (except at 100mm wide-open, where both lenses gave the same resolution results). The 100-400 gives me a full EV more stills stabilization than the 100-300 did (3.3 EV versus 2.3 EV at their long ends). Also, the 100-400 seems to be a bit more stable in panning in video, and the AF tracking and correction during a pan seems a bit more reliable than on the 100-300. Though the 100-300 is a smaller, lighter, and less-expensive lens, I think the added 33% of reach, coupled with the improved image quality and stabilization, were a worthwhile trade, at least for me. The lens is superbly built, solidly constructed (made in Japan under Leica design and quality control). The manual focus and zoom rings work smoothly but are stiff enough to prevent any chance of focus or zoom creep. There is a zoom-ring lock, but I think itђs utterly redundant. However be sure to leave it switched OFF to avoid eventually stripping the gears it uses, since the zoom ring will in fact move (albeit stiffly) even when that ring is in the lock position, if you forget to unlock it. The 100-400 gives you slightly better than 1:2 (35mm equivalent) macro reproduction at closest focus and 400mm, with about a 4.25-foot free working distance. Great for any flowers and probably most insects without disturbing them. The tripod mount can easily be removed for hand-held work. It re-attaches with a knurled screw knob, which is very convenient when using a monopod. You screw the tripod mount into the monopodђs screw head, then use that knob to attach the monopod and mount to the lens, rather than mounting the tripod mount and then trying to screw in the monopod by rotating the entire monopod. For tripod work, leave the tripod mount attached to the lens and attaching a quick-release plate to the bottom of the mount for easy attachment and removal from the tripod head. As other reviewers have noted, itђs probably best to remove the tripod mount during hand-held work, as it can be awkward and uncomfortable to work around in that case. The mount is small and light enough (yet plenty sturdy) to fit easily in any camera bag on its own, or in a shirt or vest pocket. Do NOT rely on the camera strap and strap lugs to support this camera safely around your neck with this lens attached (Panasonic warns about this somewhere Iђve read). Always support the weight of the lens with your left hand under the lens barrel, when the lens is attached to the camera and not mounted on a tripod. I would NOT recommend ever attaching the camera to a tripod or monopod directly using the cameraђs tripod mount rather than the lens mount. The rig will not be balanced and would put needless stress on the lens attachment to the camera. I have a large (roughly 10-11У long with legs together) Gorilla Pod with a small Manfrotto ball head with a release plate, and I would trust that rig to support the lens and camera on a reasonably flat and stable surface, as long as one of the pod legs stretches out directly under the lens barrel. The lens hood (comes in two parts, one slide-out and one detachable) is a little finicky and takes getting used to, but I recommend always using both parts to minimize possible light flare. I have managed inadvertently to turn off one or more of the three switches on the lens barrel (Power IS, AF-MF, and focus -limiter) when removing the lens from a bag or pack and attaching it to the camera body. The switches are very near the edge of the lens mount, which is where I tend to grip the lens when removing it from the bag and attaching it to the camera. The switches can easily be clicked out of place, so remember to check where theyђre actually set after attaching the lens and before shooting, to ensure youђre getting what you want to get from them. With a G85, its equally-sharp and equally-consistent 12-60 kit lens, and the 100-400 (both lenses give 1:2 macro reproduction in 35mm terms at their long ends), I have a splash-and-dust-resistent camera kit that will meet probably 95% of my outdoor daylight photography needs. I might want to add my 7-14mm f:4 Lumix zoom to the kit for the other 5%. I donђt do sport photography, so canђt comment on the lensђs suitability for sports."
Date published: 2017-03-05
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