src=" Review of the Olympus Firmware 4.0 – Focus Stacking, updated movie modes and more
Camera Reviews

Date: 03/11/2015 | By: Heather

Review of the Olympus Firmware Update 4.0 – Focus Stacking, updated movie modes and more

E-M1, 1/160, f/ 35/10, ISO 200

Review of the Olympus Firmware Update 4.0 – Focus Stacking, updated movie modes and more

Update: You can now download firmware update 4.0 on the Olympus website.

The OM-D E-M1 may have just celebrated its second birthday – a lifetime in technological terms – but it remains just as relevant as it was when it was first released. How is this possible? Well, it is partly owing to the numerous firmware updates Olympus has released to keep the flagship model up-to-date.

The latest update, firmware 4.0, gives the E-M1 numerous features first seen on the OM-D E-M5 II and OM-D E-M10 II. In our opinion, the most important are:

  • Focus Bracketing Mode – (From the E-M10 II) This mode allows you to take up to 99 consecutive shots (Raw and JPG) in a burst (electronic shutter) with different focus positions. These shots can then be merged in a post-production software like Photoshop or Helicon Focus. Since it uses the electronic shutter, you can use a maximum shutter speed of 1/16000s and a minimum shutter speed of 1/8s, while the ISO is capped at 3200. You can see our full review of the Focus Bracketing Mode on the E-M10 II here.
  • Silent Mode – (From the E-M5 II) You can use the electronic shutter to remain completely silent.
  • Movie shooting at 24p/25p Frame Rate – (From the E-M5 II)
  • 5-Axis Image Stabilisation for Movies and Digital IS – (From the E-M5 II) Extra stabilisation for movie shooting. Check out our original comparison between the E-M1 and E-M5 II to see how the 5-axis stabilisation improves the movie shooting experience.

Focus Stacking Mode

In addition to these inherited features, the OM-D E-M1 has also received one exclusive new feature called Focus Stacking Mode, which can be found in the Focus Bracketing menu.

Like the Focus Bracketing Mode, it allows you to shoot macro shots with a depth of field larger than the minimum aperture of your lens. The difference is that it merges the shots into a single image in-camera.

Update: You may wonder why the Focus Stacking mode has only been implemented on the E-M1 and not the other recent OM-D mark II models. Olympus explained that the E-M1 has a larger buffer capacity and as such, it is the only one capable of handling the calculations required to stack the images. The process of merging the High Res Shot on the E-M5 II requires fewer calculations and this is why the E-M5 II has a smaller buffer capacity.

E-M1, 1/1250, f/5, ISO 200 – Focus Stacking (8 shots) taken outdoors on a tripod
A good composite with minimal blurring around the edges of flower

In both Focus Bracketing and Focus Stacking modes, you can choose a focus differential between 1 and 10. The term “focus differential” implies the distance between the in-focus areas of each shot in the composite. Selecting the right focus differential is a matter of trial and error, as an excessively high value will produce blurry bands across your image, and an excessively low value will only cover a small distance.

Focus Stacking (8 shots at focus differential of 10)
Notice the blurry band along the face of the subject. In this case, the focus differential was too high.

Overall the new Focus Stacking feature works surprisingly well, but it isn’t without its caveats. You can only take 8 shots per burst and the resulting image is always a JPG file, meaning that your exposure has to be spot on. The camera also crops 7% of the borders of the final composited JPG, so your original composition will never be exactly the same as the final image.

What’s more, any movement, be it your body or the subject, may result in one of three things: an imperfect merge, failure to produce a composite, or an error message. Regardless of the result, the camera will always save the eight original shots.

E-M1, 1/400, f/4.5, ISO 200 – Focus Stacking (8 shots) hand-held outside with 5-axis stabilisation
An imperfect composite with blurring and aberrations around the flower and leaves. This was caused by the wind.

The last point may lead you to think that you cannot perform Focus Stacking hand-held but this is far from the case.

Since the burst is very quick, it is possible to achieve a clean composite as long as you activate the 5-axis stabilisation and keep yourself steady. As always, the closer you focus, the more the micro-movements produced by your body will interfere with your ability to maintain the same composition throughout the burst.

E-M1, 1/320, f/2.8, ISO 200 – Focus Stacking (8 shots) hand-held outdoors with 5-axis stabilisation
A good composite with minimal aberrations around the petals due to body shaking
E-M1, 1/250, f/3.5, ISO 200 – Focus Stacking (8 shots) hand-held outdoors with 5-axis stabilisation
A good composite with little to no blurring around the edges of the shell

Of course, to achieve the best results with Focus Stacking, it is a good idea to photograph static subjects in an environment without wind.

E-M1, 1/100, f/2.8, ISO 200 – Focus Stacking (8 shots) taken inside on a tripod
A near-perfect composite

The results are rarely 100% perfect, with halos/blurring sometimes appearing around the subject and in scenes with lots of overlapping elements, but it is a useful for those who want a quick and easy stacking solution.

E-M1, 1/50, f/5.6, ISO 200 – Focus Stacking (8 shots) taken inside on a tripod
A very good composite with minimal blurring around the edges of the subjects
E-M1, 1/50, f/ 28/5, ISO 200
Crop – Notice the blurry area around the pig’s legs

I personally find that the stacked JPG works well as a “preview” of sorts, as I like to have complete control over the end result. Since the camera also records the 8 shots to the memory card in both Raw/JPG format, you have the option of merging and retouching them in post-production later on if you really feel the image is worth the effort.

The E-M1 has also received a new option for focus bracketing/stacking and flash: you can set the recharge time of the lamp between each shot if you are using third party units. With Olympus flashes, it will do it automatically. Note that the shutter speed is limited to a maximum of 1/13s since the camera uses the electronic shutter in this mode.

Happily, the Focus Bracketing bugs that appeared on the E-M10 II seem to have been resolved with firmware 4.0. The camera used to freeze after a burst or two, and the only way to get it working again was to turn it off or remove the battery. This doesn’t happen on the E-M1.

It is also important to note that this mode currently only works with three M.Zuiko lenses: the M.Zuiko 60mm f/2.8 macro (the lens I used for this article), M.Zuiko 12-40mm f/2.8 PRO and M.Zuiko 40-150mm f/2.8 PRO. If you try to use it with other lenses, you’ll notice that the option is blacked out in the menu.

Updated Movie Mode (24p/25p, 5-axis stabilisation, 4K Time Lapse, etc.)

The movie specs of the OM-D E-M1 have also been updated to (nearly) match those of the OM-D E-M5 II, the closest you’ll find to a film camera in the OM-D line-up.

We get features like movie info display, movie record start with release cable (RM-UCI), time code setting support, and Slate Tones to facilitate the synchronisation of audio and video when using the Olympus Linear PCM Recorder LS-100 via USB cable. But more importantly, we now have support for 24p/25p frame rates, movie image stabilisation with 5-axis IS and 4K time lapse. The only movie feature the E-M1 won’t receive is the Picture Mode Flat, a new picture profile reserved for the E-M5 II via firmware update 2.0. Unfortunately, the firmware update doesn’t include the ALL-Intra codec at 72mbps that the E-M5 II has, nor the 50p or 60p capabilities.

Of all these settings, we find the 5-axis stabilisation for movies the most exciting. This is because it gives an added fluidity to your shots, so much that it almost seems you are using a steady cam. The E-M5 II was the first OM-D camera to natively use 5-axis stabilisation for video, while the previous models all used 3 axes. Like the other OM-D mark II models, you can choose between M-IS 1 and M-IS2. The former will use both sensor and software stabilisation which slightly crops the frame. It is best for static shots since it can produce an unpleasant jello effect when you are moving. M-IS2 on the other hand is better suited to movement. Note that with both options some unwanted sensor shifting can occur when the camera overcompensates for shakes.

Below you can watch our hands-on review of the updated OM-D E-M1, as well as some footage shot in 24p/25p (minute 7.50) and a comparison between the 3-axis stabilisation of the original E-M1 and the 5-axis stabilisation of the updated E-M1.


4K Time Lapse was something we’d already tested on the E-M10 II. In all honesty, we find it less a useful feature and more a gimmick that was thrown into the mix just to prove that Olympus is on the 4K bandwagon. At only 5fps, the resulting movie clip isn’t very fluid. Things improve only a little in Full HD (15fps) and you get 30fps in HD ready (720p).

Other Updates

Below you can find a complete list of all the updates you can expect when you update the firmware in November. Most are also available on the E-M5 II (via firmware update 2.0) and E-M10 II (natively).

  • Focus Stacking Mode (only on E-M1)
  • Focus Bracketing Mode
  • Advanced Focus Peaking (4 colors)
  • Silent Mode (electronic shutter)
  • Improved Anti-Shock Mode
  • Support for Advanced Olympus Capture Ver. 1.1
  • Support for Live Composite on OI. Share
  • S-OVF (Simulated OVF)
  • 4K Time Lapse Movie
  • MF Clutch and Snapshot Focus Disable (not on E-M10 II)
  • Menu Cursor Position Memory
  • Movie image stabilization with 5-axis IS and digital IS (M-IS1 and M-IS2 supported)
  • Support for 24p (23.98p)/25p Frame Rate
  • Movie Info Display
  • Movie Rec Start with Release Cable (RM-UC1)
  • Support for Time Code Setting
  • Generate Slate Tone (not on E-M10 II)
  • Synchronized linear PCM Audio Rec with Movie Rec (not on E-M10 II)
  • Movie-Exclusive Picture Mode: Flat / Noise Filter for video shooting (only on E-M5 II, not E-M1)


Fujifilm was one of the first mirrorless camera brands to regularly release firmware updates for their existing cameras, and it is wonderful to see that Olympus has also jumped on board. By updating the OM-D E-M1 with all the latest specifications, not only are they prolonging the life of their flagship camera but they are also instilling brand loyalty by taking care of their existing user base.

What’s more, with the introduction of Focus Bracketing/Focus Stacking, the camera has also become one of the most interesting products for macro photographers. It can easily become one of those features that you can’t live without if you like this genre of photography.

With all the amazing technology we’ve been seeing from Olympus over the past few years, I am very eager to see just what the second generation E-M1 will bring to the world of photography.

How about you? Are you looking forward to the OM-D E-M1 II?

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About the author: Heather Broster

Heather Broster was born in Canada, has lived in Japan and Italy but currently calls Wales home. She is a full-time gear tester at MirrorLessons. You can follow her on Google+, Twitter or Facebook!

  • denno

    I enabled silent mode but don’t notice any difference. Is there more to it than turning on that setting?

  • Mathieu

    At 11fps, AF locks with the first frame and you can shoot at that speed with the silent (electronic) shutter only. As for the S-OVF setting, that’s correct you can’t set the frame refresh rate to High. With birds it is better to disable the S-OVF to have the faster refresh rate and you can also set the Release Lag Time to short.

  • Don Hughes

    I’m quite enjoying my E-M1 but can do without movies and all the other exotic stuff as I shoot stills only. I do like the addition of S-OVF but the histogram doesn’t respond to manual settings changes. Otherwise a great unit.

  • Heather Broster

    It should be this month, though I’m unsure of the exact date. :)

  • Dallas

    Heather, what is the expected release date for v4.0?

  • Heather Broster

    I tried both and found the results from Helicon Focus more accurate. It is also easier to edit your final shot using multiple layers as a reference. Helicon gives you a free 30-day trial, so you can try it out and see which you prefer.

  • Heath

    Is there a reason you used Helicon Focus instead instead of Photoshop?

  • Heather Broster

    Thanks for sharing the app. I had heard of it until now!

  • Mathieu

    We heard about it but unfortunately we don’t own any android device so we can’t test it. I hope that they will release an iOS version as well. However that still remains a function brought but an external device and not by the camera itself unlike the E-M1. But it is definitely a interesting alternative for Lumix users (as long as you own an android device).

  • Richard Rockley

    I don’t call having to spend a couple of hours reconfiguring every single option a “minor annoyance.” When are they going to make the customization savable?

  • QMN

    Not really. Last time i filmed with my smarphone all the settings in the menu as i went through all of them before updating. Took me ~ 5 minutes. Then i updated the firmware and used the film to check all menus. 10 minutes more. Still, way quicker than to writting it all.

  • Ulla Kamm

    I do not agree that with the new update the E-M1 is the best option for macro photographers. Have you ever tested that very nice and simple Android app for Lumix cameras? It is called GsimpleRelease and is a god given gift for every macro photographer. It gives you far better control and you can even use a flash. You should test it out!!! Look here:

    And see amazing pictures @DPreview

  • Matt

    Yes I feel the same way, it will be a tough act to follow

  • Oleksii


  • Bob B.

    Major bummer. I have an EM-1 and an EM5 II….VERY customized….That is SUCH a hassel!!!!!!! LOL!

  • Bob B.

    Thanks for the clarification Mathieu, (I suspected that type of explaination)….Makes sense. That is fine with long as both cameras can both bracket raw files its all good. I have the Panny macro and that is not supported for the Stacking function anyway. No biggie.
    Now ….if OLYMPUS would just let our cameras keep all of our customizations when we load the new software….all would be good!!!!! :-)

  • Heather Broster

    I’m not sure about the E-M5 II as we only tested the E-M1 with the new firmware. If we get ahold of one, I’ll update this article. :)

  • M.Silva

    It’s still hard to accept that they did not include 60 Fps recording for the EM-1 in this update. As it’s something I regularly make use of.

    The only explanation I can think of is that the EM-1 MkII is coming out soon, with 60fps recording, and they’ll use that as leverage in getting us to buy it…sigh

    Great review, much appreciated.

  • Mathieu

    Update: we asked about this and yes the camera will be reset when upgrading to firmware 4.

  • robcee

    last major firmware release (3.0) did blow-away settings (e.g., the MySet settings). It’s a minor annoyance considering the depth of the upgrade.

  • Mathieu

    We updated the post as we received more info about this. Olympus explained that the calculation needed for the high res shot on the E-M5 II is less complex and buffer consuming than Focus Stacking. So since the E-M1 has a larger buffer, it is the only one that can handle the Stacking process.

  • robcee

    the E-M1 is optimized for long continuous shooting bursts. It has an image buffer of 50-60 images compared to only 8 required for the hi-res shot mode in the E-M5mk2.

    I still love my E-M1 to bits. This is the first camera I’ve owned where I’m not eagerly awaiting the next version. I want to keep using mine. Thanks for the review!

  • Bob B.

    Alex…hmmmmmm…. I have both cameras and yes…you have a point about the buffer for the EM5 II needing to handle the hi Rez files…but I can tell you that there is a buffer issue as I can shoot many more images with my EM1 at high frame rate before the buffer fills…my EM5 II fills immediately.
    I am not a tech guy…but maybe the hi-Rez files are handled differently…OR maybe Olympus crippled the buffer to keep the EM1 on top?
    Either way…the situation is what it is and does not appear to be changing.

  • Oleksii

    Thanks! So could You test the difference between Noise Filter on and off in good lighting conditions and minimal ISO? Is there real improvment in video quality (resolution and sharpness) in new firmware on E-M5 Mark II?

  • Heather Broster

    We received an E-M1 with firmware 4.0 already installed, so I’m not sure if it will discard all your settings or not. However, when we did a previous update on our own copy, the camera was restored to its original settings, so it’s quite possible the same will happen with version 4.0.

  • Heather Broster

    I was trying to clarify that it is only available for the E-M5 II. I removed the line through the text and made it italic instead. :)

  • Heather Broster

    I couldn’t agree more!

  • Heather Broster

    This is what we were told by Olympus but it’s true that it’s difficult to understand why it isn’t possible as the E-M5 II has the High Res shot mode.

  • Alex Dodis

    I find to hard to accept the explanation “The reason stacking is available for E-M1 only is the buffer size. The buffer of the other cameras is too small to calculate the final stacked image” as the OMD E-M5 MII must have a LARGER buffer than the EM1 in order to produce JPGs in high resolution mode. As an owner of the OMD E-M5 MII I therefore feel this is an excuse for unnecessarily differentiating the camera from the top of the line model.

  • Matt

    Nothing quite as good as a free upgrade :-) Bit like Tesla adding features to their cars after purchase

  • Bob B.

    I read elsewhere that updating the firmware “zeros-out” the camera…i.e. loading the new firmware discards all of your presets, button assignments, preferences, etc…and the camera will need to be customized from scratch as if it were new after the update. Did you find this to be the case..?

  • Oleksii

    Hi! Why did you deleted this “Movie-Exclusive Picture Mode: Flat / Noise Filter for video shooting (only on E-M5 II, not E-M1”? I’ve already seen it’s working on youtube.

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