Helen
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Veteran Member
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Posts: 7,606
Re: Olympus 60mm f/2.8 Macro vs. 30mm f/3.5 Macro
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ScottoG wrote:
Steppen wolf wrote:
One factor that may or may not be of interest is that the 60mm f2.8 is compatible with the in-camera focus stacking on the later Olympus cameras, whereas the 30mm isn't. I use focus stacking quite a lot on my EM5 mkIII and it's very useful for macro.
Sorry, but I wish to correct your statement. The Olympus 30mm macro lens is also compatible with Olympus bracketing and stacking.
(And, yes, stacking is great on the E-M5, isn't it!)
I was reading my way through the thread and was going to say both of those things too! Maybe Steppen wolf was thinking of the Panasonic 30mm f2.8, which of course isn't compatible with Olympus in-camera focus stacking (though contrary to what they said, I believe that focus bracketing - on any Olympus body which has it - is compatible with any native m43 lens, though how good the results are depends on the characteristics of the lens).
To the OP: focus bracketing and focus stacking are methods whereby the camera takes multiple shots in fast sequence, using the silent shutter mode (none of which your E-PL8 has), shifting the focus point slightly as it goes. This allows it to deliver more depth of field (i.e. more of the shot is in focus in front of and behind the actual point of focus) for a set aperture than normal. This in turn means that you can use a larger (wider) aperture such as f4 instead of say f8 or f11 to get what you need in focus. In turn, this means that you may be using the best aperture optically for your lens performance, plus you can use a faster shutter speed (less possibility of shake) and a lower ISO (less image noise) as well. It is really useful for close-up photography.
Focus bracketing does the sequence shooting (it gives you choices over the number of shots and how much it should adjust the focus for each shot it takes - "steps") but you then assemble the results in software afterwards, for example Helicon Focus or many other programs.
Focus stacking is similar but the camera also assembles the results itself after shooting, as a jpg. It too has a choice of how many frames and how large the steps should be, but it alters the focus point in a different sequence. Only 8 or 15 shots maximum are taken (it depends on the model) and most but not all models show a frame on live view to preview the slight crop that will result in the final shot from the alignment process. It will only work with certain Olympus lenses, and remains greyed-out and inaccessible if they are not used.
Currently available models which have focus bracketing (for assembly outside the camera in various programs) are:
E-M10 Mark II, Mark III, Mark IIIs, Mark IV
(NB: only the Mark IV has a screen that can face forwards which is necessary for the OP's use, whilst only the Mark II has the full version of focus bracketing - the others have a simplified form with so little control (program mode only) and so few step choices (two vs ten!) and shot numbers (up to 8 vs up to 999) that I find it pretty frustrating, though it has to work for some use cases, surely...).
E-M5 Mark II, E-M5 Mark III, E-M1 Mark II, E-M1 Mark III, E-M1X
(All of these have the full version of focus bracketing, and all have screens which can face forwards - out to the side of the camera. The E-M5 Mark II had it added in a firmware update - which you can do yourself but recently-built E-M5 Mark II cameras should have it already. The old original E-M1 also had it, but didn't have a forward-facing screen option).
E-PL9 and E-PL10
(These do have forward-facing screens but unfortunately only the limited version of focus bracketing I described in the E-M10 section).
Models with in-camera focus stacking as well as focus bracketing are:
E-M5 Mark II, E-M5 Mark III, E-M1 Mark II, E-M1 Mark III, E-M1X
(The E-M5 Mark II requires the latest firmware updates to get the feature and after those has the original version with 8 frames and no preview crop frame. The others (except the E-M5 Mark III, which also has 8 frames but does have the preview crop frame) have the full version with 15 frames max - lower numbers also selectable - and a preview frame. The original type is still useful - to me anyway - and the latest version better yet).
Here's a useful Olympus page, mainly about in-camera focus stacking:
FOCUS STACKING & BRACKETING WITH OM-D | Olympus (getolympus.com)