“Jack Lam is a cinematographer based in Beijing and Hong Kong. His body of work includes TV commercials, seasonal TV drama series and theatrical feature films. His commercial clients include Cathay Pacific, Lenovo, Airbnb, Alibaba, and Mandarin Oriental Hotel Group. He also works with DJI as a design consultant for their cinema products….
… As a working cinematographer, I am super excited by Panasonic’s announcement of the Lumix S mirrorless camera system. The Panasonic GH5 is so well-designed, it has become a reliable workhorse for many video shooters. I have no doubt a full-frame version of it will be amazing, and everything I read about the S1/S1R confirms that.
However, Lumix S has the potential to become much greater that what we see in this product launch. With this brand new camera system, Panasonic has a unique opportunity to create the perfect small camera system for professional cinematographers. But doing so requires Panasonic to address a long-standing problem that is overlooked by all other camera makers, as well as some rethinking of conventional ideas on camera design.
This missing feature – one that can become a potential killer feature for Panasonic – is good manual focus control for video….
… I want MF control that is simple, accurate, reliable, repeatable, predictable, measurable and ergonomically sound. It should also be wireless-capable and highly integrated as part of the camera (so that we can keep the camera small and don’t need to add six other accessories just to pull focus). Do you know of any small (DSLR/mirrorless) camera in the market that fulfills all of the above requirements? I have found none.”
Please note that Jack Lam’s open letter was written late 2018 before the official launch of the Panasonic S1 and S1R cameras and lenses, before detailed specifications were released.
The elephant in the room of mirrorless and DSLR hybrid cameras is manual focusing, and it is pleasing that Mr Lam has addressed it in depth.
The autofocus capabilities of modern mirrorless cameras have been steadily improving for use in stills photography, but I often find myself flipping over into manual focus whenever starting off with autofocus when shooting video, no matter how much innovation has gone into each camera’s video autofocus functions.
The problem of manual focusing limitations in cameras is further compounded by the manual focusing and focus pulling limitations of the lenses that are made for them, with their reliance on non-linear focusing control rings or lack of focusing rings altogether.
Whenever possible I invest in lenses that have manual clutch focus mechanisms and hard stops at each end of the focussing scale, but these lenses can be far and few between in any camera system.
Lenses manually focused via control rings are more common, whether the option of switching from non-linear to linear operation is offered in cameras’ firmware or not.
Given a choice, I will always select a manual clutch focus lens over autofocus-only or control ring-only lenses, but then there is another factor, the all-too-common lack of an aperture ring.
The ideal lens for me has both, with a switch for clickless and clicked operation of the aperture ring being the best option for riding exposure in variable light.
I write about this stuff as often as I can but I am nobody and no camera manufacturer pays attention to what I have to say.
It may be a different matter for Jack Lam.
I hope that Panasonic is not the only camera and lens maker that may read Mr Lam’s open letter.
I want Blackmagic Design, Fujifilm and Olympus to read it and act positively upon it too.
Manual focus and focus-pulling for video with mirrorless hybrid camera should not have to suck.
I am beyond tired of it sucking on the cameras that I try out and consider for purchase.
I am tired of having to mention it all the time in my articles in the hopes of things changing for the better.
I am sure that my contacts at the camera and lens companies are tired of me and reportedly many others asking them to lift their game.
Mr Lam makes a number of other excellent suggestions on page two of his article as published by DPReview, or you may wish to read it at source, at Mr Lam’s The Right Lens web log below.
For good measure, here is his list of other necessary features, all of which I agree with:
Other Good-to-have Features
While we are at it, here are some good-to-have features that I’d like to see in the Lumix-S system. But they are not nearly as important as a good focus control system.
– GH5-style Flip-out Screen. It is already so good. Don’t change it.
– High-bright Screen. Make it viewable under sunlight. I know it eats battery and heats up quick. But it really is super useful outdoor.
– Internal ND
– 4K 10-bit Log 60fps
– Build-in Video Transmitter or make it an add-on module that is highly integrated with the camera. Monitoring thru WiFi isn’t reliable enough. (I know I am getting greedy…)
– Sturdy, Positive-locking Lens Mount. For the time when we do use a cinema lens. (Just like the mount upgrade option on the Canon C300 MK2)
– Ergonomics. For the video-centric pro model, please, don’t make it too large, otherwise the whole talk about small cameras getting good focus control becomes moot. At least give us one video-centric model with DSLR-like form factor. And please, for god’s sake, don’t make it shaped like the Canon C100 / C300. They have the worst ergonomics.
- DPReview – Open letter to Panasonic: Innovations in manual focus could make Lumix S a winner for cinematographers
- Jack Lam, cinematographer
- The Right Lens – Open Letter to Panasonic: Long-overdue Innovations in Manual Focus Will Make LUMIX-S a Winner for Professional Cinematographers