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5.0 out of 5 starsIt's strengths and a design flaw; a quick comparo vs the Panasonic 35-100mm f/2.8
ByLGOon November 21, 2014
The Oly 40-150mm f/2.8 is a beauty. My impression from initial testing is that it is a very good lens that does very well even at its maximum focal length where many zoom lens have less than stellar performance. My initial testing at 150mm f/2.8 using the E-M1/HLD-7 shows very goods results wide-open and this is where I expect to use this zoom lens frequently.
COMPARED TO DSLR ZOOM LENSES
For someone who uses a full-frame dSLR system, the weight (880g with tripod lens collar, 760g without tripod lens collar) and size of the Olympus 40-150mm f/2.8 is nothing objectionable. As a regular user still of the Nikkor 14-24mm f/2.8 (969g), 24-70mm f/2.8 (900g) and the 70-200mm (in f/2.8 / 1540g (with tripod lens collar) and 70-200mm f/4.0 850g (without tripod lens collar), this Olympus zoom is a light weight. Compared to these Nikkor zoom lenses, the Olympus 40-150mm f/2.8 is a light and still compact lens given its field of view (FOV) of 80-300mm with f/2.8 on an m4/3 camera. This is easily appreciated when this zoom lens is used with the Olympus MC-14 1.4x teleconverter (I have written a separate review of the Olympus MC-14) where it yields an FOV of 112-420mm with f/4.0.
COMPARED TO m4/3 ZOOM LENSES (Panasonic 35-100mm f/2.8)
I also have the Panasonic 35-100mm f/2.8. Very briefly, the two zoom lenses are both excellent lenses. While both have overlapping coverage, they are essentially two different lenses in terms of use. Let me elaborate on this a bit.
If I have no compelling need for a longer focal length, the Panasonic 35-100mm f/2.8 will be my lens of choice as it is significantly more compact and lighter than the Olympus 40-150mm f/2.8. To drive home the size and weight advantage of the Panasonic 35-100mm f/2.8, the Panasonic 35-100mm f/2.8 is just a little heavier than the Panasonic 12-35mm f/2.8 (360g vs 305g), and is lighter than even the Olympus 12-40mm f/2.8 (382g). In terms of length, the Panasonic 35-100mm is just a tad longer than the Olympus 12-40mm f/2.8 (Approx. 2.70" x 3.9" vs Approx. 2.75" x 3.31"). From these, it is clear that the Panasonic 35-100mm f/2.8 retains the compact and light weight advantage of the m4/3 system.
The Olympus 40-150mm f/2.8 at 880g and Approx. 3.13" x 6.30" is significantly heavier and larger as a m4/3 zoom lens. This significantly impacts on the erstwhile advantage of the m4/3 system of being lighter and more compact. The above-indicated size does NOT yet include the lens tripod collar so the lens becomes even bigger if the tripod collar is mounted on this Olympus zoom lens. One culprit of this lens contributing to a much heavier and bigger setup is the poor design of the lens tripod collar (more on this below).
I have a very compact Lowepro back-pack which currently can accommodate a GH3 with the Panasonic 12-35mm f/2.8, a Panasonic 7-14mm f/4.0 (or Panasonic 42.5mm f/1.2 or Olympus 75mm f/1.8), and an E-M1/HLD-7 with a Panasonic 35-100mm f/2.8. The Olympus 40-150mm f/2.8 mated to an E-M1/HLD-7 will not fit and requires me to use a considerably bigger backpack which I normally use with Nikon dSLRs. In exchange for a longer reach in the 101-150mm range not covered by the Panasonic 35-100mm f/2.8, the Olympus 40-150mm f/2.8 now means a considerably bigger camera-lens combo and thus require a considerably bigger and heavier bag as well.
Another point of difference between the Panasonic 35-100mm f/2.8 and the Olympus 40-150mm f/2.8 is that the Panasonic lens zooms just like the Nikon Nikkor zoom lenses I use, i.e., turning the zoom ring clockwise goes from wide to telephoto. The Olympus 40-150mm is opposite and operates like the Olympus 12-40mm f/2.8, turning the zoom ring clockwise goes from telephoto to wide. Because I shoot regularly using Nikkor and Panasonic zoom lenses, it takes some getting used to the opposite direction that Olympus zoom lens operate. This bit of difference will be of interest to those who are regular users of Nikkor and Panasonic zoom lenses.
In considering whether to get the Panasonic 35-100mm f/2.8 or the Olympus 40-150mm f/2.8, one will need to decide which is more paramount to the user - the lighter weight and more compact size of the Panasonic 35-100mm f/2.8 or the longer reach of the 40-150mm f/2.8. For Panasonic m4/3 camera users, one will also need to consider that the Panasonic 35-100mm f/2.8 has optical image stabilization (OIS) while the Olympus 40-150mm f/2.8 does not have OIS. Then there is the matter of filter diameter size. The Panasonic 12-35mm f/2.8 and the 35-100mm f/2.8 uses the same 58mm diameter filter while the Olympus 12-40mm f/2.8 uses a 62mm filter while the 40-150mm f/2.8 uses a 72mm filter.
On the other hand, one does not have an option (as of this writing) to use a teleconverter with the Panasonic 35-100mm f/2.8 while the Olympus 40-150mm f/2.8 can be used with the excellent MC-14 1.4x teleconverter which yields a field of view of 112-420mm f/4.
For me, I consider these two zoom lens as essentially two different lenses for two different specific uses. I decided to get both.
Prior to the arrival of the Olympus 40-150mm f/2.8, I consider the Panasonic Leica 42.5mm f/1.2 and Olympus 75mm f/1.8 as my best native m4/3 lens, the Panasonic 35-100mm f/2.8 as 2nd best, with the Panasonic Leica 25mm f/1.4 in third, the Panasonic 7-14mm f/4 in fourth place (on a Panasonic body but not on an Olympus body), and the Panasonic 12-35mm f/2.8 and Olympus 12-40mm f/2.8 in fifth place,. My early impression is that the Olympus 40-150mm f/2.8 is as good as the Panasonic 35-100mm f/2.8 despite the Olympus greater zoom range.
As I get to spent more time with this lens, I begin to appreciate just how good the optics of this zoom lens is. Being a zoom lens, I realistically cannot expect it to equal the exceptional performance of lenses such as the Panasonic 42.5mm f/1.8 or the Olympus 75mm f/1.8. So yes, the corners are not as nearly sharp as the center as the Olympus 75mm f/1.8, the bokeh at some distance and specific focal length is not as smooth, lens flare can be a bit of a problem in some instances, etc. But within the parameters of this being a zoom lens, I cannot find any major fault with the optics of this zoom lens that would make me unhappy with it. I am in fact very happy with the optics of this Olympus zoom lens.
EXCELLENT HOOD DESIGN
Unlike the fragile hood of the Olympus 12-40mm f/2.8 which easily disassemble and disintegrate at the first instance (Olympus should be taken to task for this expensive very badly designed hood), the hood for the Olympus 40-150mm f/2.8 is very well made and designed. Olympus has brilliantly designed the hood to collapse into the lens for a considerably shorter overall package. This design moreover allows the hood to be extended quickly with little effort. Kudos and praise to the Olympus design team for this. This well-deserved praise however is offset by a major mistake in the design of the lens tripod collar.
POOR LENS COLLAR DESIGN: MY MISSIVE AGAINST THE OLYMPUS 40-150mm f/2.8
Having heaped praise on the optics of this zoom lens as well as the design of the hood, I need to add that what I am most unhappy about this zoom lens is the poor design of the lens tripod collar.
The lens tripod collar is big and heavy - which in itself is not objectionable as the collar needs to be sturdy to give the lens the stability it needs when shooting with a tripod. Adding an Arca adaptor to the lens tripod collar further adds to the mass and weight of the lens collar. Integrating an Arca rail on the collar would have made the collars lighter and less bulkier but as only after-market lens collar comes with an integrated Arca rail, I really should not rail against Olympus on this point.
What is objectionable however is that the lens tripod collar is difficult to remove and reinstall. This difficulty makes one less likely to remove the lens tripod collar from the lens even when desirable or needed and thus effectively makes this Olympus zoom heavier, more bulky and ungainly than it could have been if the lens tripod collar was better designed.
My biggest complaint about the lens tripod collar is that unlike all the long zoom lenses that I use that needs a lens tripod collar, one will need to detach the lens from the camera body before one can remove the lens tripod collar from the Olympus 40-150mm f/2.8. This requirement of having have to unmount the lens and expose the inside of the camera to dust and contaminants just to be able remove the lens tripod collar from the lens is a major design flaw.
This major lapse in the design of the lens tripod collar means that removing the lens tripod collar from this Oly zoom is slow and made more difficult. Unlike Panasonic camera bodies which do not have an IBIS (except the GX-7) which makes self-cleaning the sensor easy if required, the IBIS on the E-M1 (and other Olympus m4/3 bodies with an IBIS) requires the camera to be returned to an Olympus service center whenever a sensor cleaning is required. I am thus more careful about removing my lens from the E-M1, particularly so when shooting in windy and/or dusty conditions in the field.
The design of the lens tripod collar in the Olympus 40-150mm f/2.8 practically means that I will generally refrain from removing the lens tripod collar from the zoom when shooting in the field. This can be a pain as when I need a smaller and lighter setup for fast handheld shooting or when I need to fit the camera/lens combo in a small backpack. Moreover, removal and reinstallation of the lens tripod collar requires a careful alignment with some screw-studs which makes removal and reinstallation of the lens tripod collar slow ... and difficult as when one is rushing and/or when one is working in low light or dark conditions. The stainless screw-studs also sticks out and I have cut my hand in one instance while shooting without the lens tripod collar.
Olympus has brilliantly designed the hood of the Olympus 40-150mm f/2.8 to collapse into the lens to make for a smaller package for a more compact storage and carry. Having accomplished this wonderfully, Olympus goes in the opposite direction with its design for the lens tripod collar. Under certain conditions, the poor lens collar design effectively makes this lens needlessly bigger and heavier than it could have be with a better lens collar design. Said another way, a better lens collar design could make this lens more compact and light by making it easy to remove the lens collar when it is not needed. This makes Olympus lapse in the lens tripod collar design difficult to understand as well as frustrating.