“Equivalence. It’s the bugbear of anyone who reviews Micro Four Thirds lenses. You are being conned says the incoming mail. Your f/1.4 lens is really an f/2.8. And your so called shallow depth of field is commensurate with f/2.8, too, not f/1.4. It’s an argument I’ve heard so many times and while factually true, is pointless and irrelevant. The only rational response is -so what?…
Put simply, a native Micro Four Thirds lens is just that. A native Micro Four Thirds lens. It isn’t a Full Frame lens. It won’t fit a DSLR and if it did it wouldn’t cover the whole frame. I’ve tried more and more to describe lenses according to their angle of view since that is universal. If you know what angle of view you want, you can choose a lens to get it. Thus, I know that I like as a standard prime a lens with a moderate wide angle, around 54° horizontal. A quick calculation at Points In Focus Photography tells me that for a Micro Four Thirds sensor it would be 17mm, for FF 35mm and for Medium Format 55mm. Easy.”
Former Fleet Street newspaper photographer David Thorpe is in my humble opinion one of the best and most useful writers and reviewers on Micro Four Thirds cameras and lenses though it is a pity that camera and lens makers don’t give him the credit and access to review gear that he deserves.
Mr Thorpe comes from a 35mm and 120 roll-film single lens reflex (SLR) background during the analog era whereas I have always relied on rangefinder and view cameras and prefer digital cameras that give me some semblance of those unique ways of seeing and photographing.
The other big difference between Mr Thorpe and I is that I rely on all my cameras, to varying degrees, when making photographs as well as videos and video is better served by fully manual lenses or at least manual clutch focus lenses such as those made by Fujifilm in APS-C X-Mount format and Olympus in M43.
As a result there are M43 lenses, especially small, light and relatively affordable prime and zoom lenses, that I quite like for stills photography but that are ruled out for serious video production, and more specialized M43 lenses such as those made by Veydra in their Mini Prime range, and those made by Olympus under their M.Zuiko Pro brand.
“… I can understand and agree with every reason put forward for those big, expensive optically superb f/1.2. And yet, in my heart, ever since I bought into Micro Four Thirds I’ve retained my original reasoning. Put an Olympus 17mm f/1.8 on a Panasonic GX9 body and go out street shooting in Soho. Now go out with a 17mm f/1.2 on the front. What can I say? Little and good, big and bad….”
Not quite, insofar as hybrid street shooting goes.
Although I have been tempted by the idea of the Olympus M.Zuiko Digital 17mm f/1.8 given its focal length is my own perfect all-in-one go-to, in reality this lens is apparently a little too compromised for documentary video production, according to a number of pro video reviewers.
I have yet to lay my hands on one for serious try out and review, but the first thing to consider is the practicality of attaching fixed or variable neutral density filters to its 46mm filter diameter via a step-up ring.
I have standardized on 77mm and 82mm diameter variable and fixed NDs in order to keep down costs, but need to maintain a selection of step-up rings to fit those NDs on a range of lenses.
Experience has taught me to stick to brass step-up rings to avoid binding, preferring brands that knurl the outside of their rings for best grip in challenging conditions but then that narrows brand choice down to Breakthrough Photography, Heliopan, PolarPro and Sensei Pro.
Of those only Heliopan makes rings for smaller filter diameters like 46mm but they don’t step-up to 82mm; for that you will need to attach a 77mm to 82mm step-up ring for which I would automatically choose the one made by Breakthrough Photography.
The same goes for other small M43 lenses some of which may be more suitable for video production such as Panasonic’s Lumix G 42.5mm f/1.7 Aspheric Power OIS with its 37mm filter diameter, the Lumix G Vario 14-42mm f/3.5-5.6 II Aspheric Mega OIS with its 46mm filter diameter, the Olympus M.Zuiko Digital ED 12mm f/2.0 with its 46mm filter diameter and manual clutch focus, the Olympus M.Zuiko Digital 25mm f/1.8 with 46mm filter diameter but no manual clutch focus and the Olympus M.Zuiko Digital 45mm f/1.8, again with no manual clutch focus but with a 46mm filter diameter.
Some made by Olympus, some by Panasonic. some with manual clutch focus, some without, none with wide filter diameters and all needing one or two step-up rings to get them to the magic 77mm or 82mm filter diameter, the latter of which I have chosen as my new default given better ND filter choice in that size now.
- Breakthrough Photography – Step Up Ring
- David Thorpe – Big and Bad, Little and Good.
- Digital Trends – Olympus M. Zuiko F1.2 Pro lenses prove there’s life left in Micro Four Thirds – “Naturally, these lenses are fantastic for portraiture. The sense of depth they give at f/1.2 is like nothing else we’ve ever seen on the format. In fact, the remark that kept coming to mind was, “This looks like film.” It is probably the first time we’ve ever felt that way about Micro Four Thirds…. Olympus’ goal with the F1.2 Pro series was to craft a specific quality of blur, which the company calls “feathered bokeh.”
- Digital Trends – Olympus M.Zuiko 17mm F1.2 Pro review – “… until now, there hasn’t been a fast, wide-angle prime that really targeted high-end and professional users. The Olympus M.Zuiko 17mm F1.2 Pro changes that, combining the largest aperture of any wide-angle lens available for the format with exceptional build quality.”
- Digital Trends – Olympus M.Zuiko 25mm F1.2 Pro review – “… [the] Olympus M.Zuiko 25mm F1.2 Pro, however, is a technically excellent lens that may also just be special enough to inspire you emotionally. It highlights the impressive move that the Micro Four Thirds system has made into the world of professional photography.”
- Digital Trends – Olympus M.Zuiko 45mm F1.2 Pro review – “… the 45mm is perhaps the most exciting entry in the series — everything about it is finely tuned for portrait photography… In fact, it is our favorite portrait-length lens for the MFT system.”
- Olympus Global – M.Zuiko Pro
- Points in Focus – Depth of Field (DoF), Angle of View, and Equivalent Lens Calculator
- PolarPro – Step-Up Rings
- Sensei – Step-Up Rings
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- Heliopan step-up rings – B&H
- Olympus M.Zuiko Digital ED 12mm f/2 Lens – B&H
- Olympus M.Zuiko Digital 17mm f/1.8 Lens – B&H
- Olympus M.Zuiko Digital 25mm f/1.8 Lens – B&H
- Olympus M.Zuiko Digital 45mm f/1.8 Lens – B&H
- Panasonic Lumix G 42.5mm f/1.7 ASPH. POWER O.I.S. Lens – B&H
- Panasonic Lumix G Vario 14-42mm f/3.5-5.6 II ASPH. MEGA O.I.S. Lens – B&H
- PolarPro step-up rings – B&H
- Sensei Pro step-up rings – B&H
- Veydra 19mm T2.6 Mini Prime Lens (MFT) – B&H
- Veydra Mini Prime 6 Lens Master Lens Kit with 6 Lens Case (MFT Mount) – B&H
- Veydra Mini Prime Fuji X-Mount – B&H