Panasonic Lumix G 45-150mm f/4-5.6 lens review

As a landscape photographer, I have a tendency to shoot all my images at the wide-angle end of the focal range. When I'm photographing at a lake, a waterfall, a beach, or a sunset, I'm usually trying to fit a decent amount of the scene into the frame. As such, my Lumix 12-35mm f/2.8 lens will spend 95% of its life firmly attached to my camera (until such time as I can afford a 7-14mm f/4).

But what about the other 5% of the time? Well, that's for when I need a bit more 'reach'. Something a little more in the telephoto end of the range. And it's why I kept my Panasonic 45-150mm f/4-5.6 when I was selling everything else.

Waiting for Dinner. Olympus OM-D E-M1 with Lumix 45-150mm lens. f/5.6 @ 1/500th, ISO 800 

If you are looking for a lightweight, well-constructed, reasonably priced, and very sharp telephoto lens for your micro four thirds system, then look no more!. The Panasonic Lumix G 45-150mm f/4-5.6 Asph. Power O.I.S. lens (to give its full title), fits the bill perfectly.

How small and how light? At only 210 grams and 73mm (at the wide end - 110mm when extended for full telephoto), the lens is small and light enough to always have in your camera bag. Even the filter size for the front is a tiny 52mm, saving you money over larger - more expensive - filters.

With a focal range of 90 to 300mm in 35mm camera full-frame terms, this lens is the epitome of the 'smaller' and lighter' promise of micro four thirds - without compromising on quality.

To keep the weight down, Panasonic have used quite a bit of plastic in its construction, but there's also metal where it counts (such as the lens mount). And as stated, they haven't skimped on optical quality. The lens uses 12 elements in 9 groups. Two of these are aspherical lenses, and one is an UHR (ultra-high refractive index) lens. This means that image distortion is minimised, resulting in clearer, sharper images. Add to this Panasonic's Power O.I.S. (optical image stabilisation) built into the lens, and you have a very fully-featured lens.

Finally, the lens can often be found for as little as $300.00NZ new (as of September 2021), and obviously even cheaper on the used market. This is outstandingly good value for a lens with such an impressive focal range. And to top it off, Panasonic even throws in a lens hood, even at this price. Kudos Panasonic (and are you listening Olympus!?).

At the beginning of this review, I mentioned that my 'need' for a telephoto lens was somewhat limited. But there's no reason it should be that way - even predominantly as a landscape photographer. Because I'm not just a landscape photographer. None of us are really. We are parents who take photos of our children, grandparents who take photos of our grandkids, and passionate creative types who take photos at all types of events. Chances are, then, that a telephoto lens is going to come in quite handy on most (if not all) of those occasions.

Greenstone Speedway, Sunset. OM-D E-M1 with Lumix 45-150mm lens. f/5.6 @ 1/320th, ISO 200

And then, of course, there is landscape photography. Which is not a genre unique to only wide-angle lenses. Telephoto images can be very effective when shooting the landscape. To be honest, I probably don't use mine enough in the landscape - to the detriment of my images.

The above image - Greenstone Speedway, Sunset - was shot recently with the Panasonic 45-150mm lens, and it's one of my favourite images of this year. It's also a shot that I couldn't have taken with the wide angle, since it was impossible to get close enough to the subject to achieve this composition.

So, since I'm planning on using the lens a lot more for 'serious' landscape work, I thought I'd better test it out a little to see if it was up to the task. If you've read my previous post, where I reviewed my Panasonic Lumix 12-35mm f/2.8, you'll know my 'testing' methodology. Which is to say, I don't use test charts, brick walls, or studio environments. I actually go outside, find a landscape, set the camera up on a tripod, and have at it! Then I look at the results in Lightroom at 100%, and see if I'm happy or not. Job's a good'n.

It may be difficult to tell from a web-file on this blog, so let me tell you what I can see full-screen in Lightroom (and you'll just have to take my word for it).

Above are 100% crops of a photo taken of the Greymouth Wharf. The wharf itself was probably about 500 feet away from me (across the other side of the Grey River). For all these images, the lens was extended to the full 150mm telephoto end (a 300mm full-frame field of view). Not usually the most optimal settings for image sharpness - wide open and at full zoom.

Nevertheless, at these settings (f/5.6 @ 150mm) the lens is already very sharp! That's pretty impressive - and I must admit I was surprised. I thought for sure that f/5.6 would be only acceptable, and that it would be even sharper stopped down to f/7.1 or f/8. But this wasn't the case - not with my copy of the lens at least. At f/6.3, at f/7.1, and at f/8, there was no discernible increase in sharpness. That is to say, they were all just as sharp as each other! This is very impressive. I even checked to make sure that I somehow hadn't mixed up the files.

I hadn't. f/5.6 is excellent, as is f/6.3 and up to f/10. It's from f/11 and above that the lens actually gets softer - and this is to be expected. 

Cobden Tiphead, Sunset. OM-D E-M1 with Lumix 45-150mm lens. f/7.1 @ 1/200th, ISO 200

The optical performance of the Panasonic Lumix 45-150mm f/4-5.6, even wide open at the extreme telephoto range, has blown me away. It's sharp - plenty sharp - and is optically an exceptional performer. It focuses quickly on my E-M1 (although it does hunt for focus a little in lower light), feels solid and well built, has a metal lens mount, and produces superb images. For very little money. Seriously - what's not to like!?

If you are looking at specializing in wildlife, bird or sports photography, then of course you are going to want to invest in a little more serious telephoto gear. Something like the Lumix 100-400mm Leica f/4-6.3 or the Olympus 150-400mm f/4.5 Pro. And notice I said 'invest', since neither of these options could be reasonably called cheap (or lightweight).

Greymouth Wharf. OM-D E-M1 with Lumix 45-150mm lens. f/7.1 @ 1/500th, ISO 200

But for the rest of us, fortunately, there's the exceptional Panasonic Lumix G 45-150mm f/4-5.6. I'm so glad I kept this lens when deciding what to sell so I could afford the 12-35mm f/2.8. For the price, it's an amazingly good lens. I'm pretty sure I'll be making a lot more use of it for my images going forward.

An easy 5 out of 5 stars and very highly recommended if you are looking for an affordable telephoto lens for your micro four thirds system. If you are choosing between this and the Olympus 40-150mm f/4-5.6, I would say go for the Panasonic. They are both optically excellent, but I think the Panasonic has it over the Olympus in terms of build quality (Olympus has a plastic lens mount). Just saying...