Question 1

What is the full-frame equivalent focal length of the Panasonic Leica DG Vario-Elmar 100-400mm?

Accepted Answer

On a Micro Four Thirds body, the 2x crop factor turns this 100–400mm lens into an effective 200–800mm equivalent. That puts it firmly in super-telephoto territory — comparable to what birders and sports photographers typically use with much larger and heavier full-frame glass.

Question 2

How good is the autofocus on the Panasonic Leica 100-400mm f/4-6.3?

Accepted Answer

The lens uses a fast, quiet autofocus motor that locks on quickly in good light. It's well-suited to tracking moving subjects like birds and athletes. For best continuous AF performance, pairing it with a body that has a strong contrast-detect or phase-detect system — such as the Panasonic Lumix G9 II — makes a noticeable real-world difference.

Question 3

Is the Panasonic 100-400mm or the Olympus (OM System) 100-400mm better?

Accepted Answer

Both cover the same focal range on Micro Four Thirds, but they suit different systems. The M.Zuiko 100-400mm F5.0-6.3 IS is generally seen as a better match for OM System bodies due to tighter AF integration, and some shooters report it edges ahead in sharpness at 400mm. The Panasonic Leica 100-400mm is the natural choice if you're shooting on a Panasonic Lumix body and want seamless Dual I.S. compatibility. Filter size and weight are also worth checking against your existing kit.

Question 4

Does the Panasonic Leica 100-400mm work on Olympus (OM System) cameras?

Accepted Answer

Yes — both Panasonic and Olympus/OM System bodies use the Micro Four Thirds mount, so the lens physically fits and autofocus works. However, the Dual I.S. coordination (combining lens O.I.S. with in-body stabilisation) works most effectively when both body and lens are from the same ecosystem. On an OM System body you'll still get the lens's own Power O.I.S., but you may lose some of the combined stabilisation benefit.

Question 5

Can the Panasonic Leica 100-400mm be used for macro photography?

Accepted Answer

The 0.13m minimum focus distance is one of this lens's underrated features. It allows close-focusing across the zoom range, making it genuinely useful for insects, flowers, and small subjects — not just distant wildlife. You don't need a separate macro lens for casual close-up work.

Question 6

What filter size does the Panasonic Leica DG Vario-Elmar 100-400mm use?

Accepted Answer

The filter thread is 72mm. That's a moderately common size, so you'll find a good selection of circular polarisers, ND filters, and UV filters available. If you're switching from a lens with a different filter diameter, a step-up or step-down ring can save you buying a duplicate set.

Question 7

Is buying a used Panasonic Leica 100-400mm lens worth it?

Accepted Answer

Absolutely, provided you buy from a source that inspects and warrants the glass properly. This lens is well-constructed and telephoto zooms in this category typically age well mechanically. On Camera-tweedehands.nl every used lens is professionally inspected, individually photographed, and backed by a minimum 12 months warranty — so you're not flying blind on condition. The savings versus new can be substantial on a lens at this price point.

Question 8

How heavy is the Panasonic Leica 100-400mm f/4-6.3 for travel and hiking?

Accepted Answer

At 985g it's on the heavier side for a Micro Four Thirds lens, but lightweight compared to a 400mm f/5.6 telephoto designed for full-frame. For wildlife hikes or travel birding, pairing it with a compact MFT body keeps your total kit well under what an equivalent full-frame super-telephoto setup would weigh. Using a monopod at longer focal lengths is still recommended for sharp results.

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Panasonic Leica DG Vario-Elmar 100-400mm f/4-6.3 ASPH. Power O.I.S.

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