I'd love to read your experience with the MPE65, please.
I have recently obtained one, and though finding it reasonably sharp ( but by no means close to Sony 90mm) I struggle with 'handling'.
Regards
OK, with the caveats
above ....
All this is "for me ....". Your and anyone else's experience may well be different.
Like my Sigma 105 Macro, the MPE-65 is heavier than I am used to (these days I always work hand-held btw). That wasn't a big issue in itself, but I think it made some of the problems I was having a bit more difficult to handle.
A major problem I had was finding the subject and focusing on it, especially if it was moving around. The far end of the lens barrel is quite wide and that makes it difficult to work out exactly where it is pointing. This is especially the case for my setup because I have a wide diffuser which blocks my view of the far end of the lens barrel and the subject area, so I have to work entirely from what I can see on the LCD screen (which I always use rather than the viewfinder).
What I am used to is being able to zoom to wider angle/less magnification to find the subject and then zoom in on it to the framing/magnification that I want for the shot. With my setups I can do that with a light, one-finger touch on a conveniently placed zoom lever, which is around the shutter button on my bridge cameras, and on the left hand side of the lens barrel on my micro four thirds setups. Alternatively, the 45-175 lens I use on my micro four thirds setups is fly by wire and the zoom ring can be operated with a very light touch with one finger of either hand, going from minimum to maximum zoom/magnification with less than a quarter turn.
At wider angle/lower magnification the scene is sufficiently in focus over a wide enough area to make finding the subject relatively easy. And with the light touch and (if using the zoom ring) small rotation needed, zooming back and framing the shot is quick and easy.
This approach did not work for me with the MPE-65. You have to turn the focusing ring a lot to change the magnification by a significant amount, and for me this was a left hand only operation and not a light, one-finger operation either. Having found the subject I found that all the barrel turning to get to the desired framing tended, especially if I was trying to do it quickly, to induce lateral movements through which I could lose the subject. In contrast, the telezoom zoom levers can be used without inducing any noticeable lateral movement, so I don't lose the subject while zooming.
An allied problem was that the MPE-65 extends a long way, so at the same time as turning the zoom ring you have to adjust the distance to the subject so as to keep sufficiently in focus to retain a view on the subject (and avoid hitting it). In contrast the 45-175 does not extend at all when zooming, which means I can zoom in and out without moving the camera (since the working distance is, more or less, independent of magnification for a close-up lens on a telezoom). This makes the micro four thirds setups particularly useful for higher magnification work, for example using a powerful Raynox 202, compared to my bridge cameras which do extend when zooming (but not nearly as much as the MPE-65, and they only need distance adjustment when zooming, not needing the turning+movement combination of hand/eye coordination needed with the MPE-65).
The only practical approach to finding the subject with the MPE appeared to be to set the magnification first and then find the subject using that magnification. I've seen
Brian Valentine recommend that approach, and I'm sure it works fine for many people. But for me it didn't. Perhaps though I didn't give it a fair try, didn't practice enough (not much at all in fact). With practice it might be fine, although I did see a comment some years ago from someone else who was very handy with the MPE-65 who talked of the frustration involved in trying to find the subject, and re-finding it after losing it. Mind you, he operated beyond 5:1 so that might have been a large part of it as this problem gets worse as the magnification goes up.
I was having difficulty finding small stationary subjects. I'm sure I would have found it pretty much impossible with small moving subjects, which I have tackled with my close-up lens setups. As the subject size goes down the failure rate does go up, and can be pretty high for small subjects like springtails that are moving around, especially if they are moving around on something like a leaf that is itself moving around in a breeze. All the same, I find it is a practical possibility.
For example In
this album at Flickr you can see 37 images starting at image 44 where I was photographing a globular springtail as it moved around, at night actually (I could probably process them better these days, but that is another story). I was using the 45-175 for those. Another thing that sequence reminds me about is that with the easy zoom in/out it is possible to capture sequences of images rapidly varying between close in on the subject and further out, more environmental shots, and in between. I like to do that with my subjects if as in that case they are around long enough. That too would I think be more difficult with the MPE-65. In
this album at Flickr there are more examples of subjects in motion, and zooming in and out on them, larger subjects this time, for example a 14 image sequence of a shield bug, also a centipede, earwig and snails as they moved around.
Having found and framed the subject I found I needed to use "rocking focus" - move back and forth to get a feel for when/where best focus falls, and then press the shutter button just as you are (about to) move through the required focus plane. Another hand-eye coordination requirement. This compares to my close-up lens setups where I have to align the focus box somewhere suitable and press the shutter button. If I am within the appropriate working distance range the camera will fine tune the focus and take the shot when good focus is achieved. If it doesn't, I know that I'm outside the appropriate working distance range and I move the camera. This is generally quick and effective, and it doesn't require me to look closely at the screen to ascertain when best focus is achieved, sparing my eyes during sessions that can be quite long. I think autofocus is a key factor for me in sequences like those linked above involving moving subject.
(With the MPE-65 on my A7ii it didn't help that the MC11 adapter only works intermittently.)
Another issue I had with the MPE was flash adjustment. There are two aspects to this: changes in effective aperture when changing magnification; and changes in distance to the subject as magnification changes. If you use TTL metering, and especially if you use flash units attached to the front of the lens, neither of these may be problematic. However, I use a manual flash and it is mounted on the camera not on the lens.
When you are using a macro lens, extension tubes, teleconverters, bellows and/or lenses reversed on to the camera body, the effective f-number changes as the magnification changes, according to the approximate formula
Effective f-number = Nominal f-number * ( 1 + magnification)
where Nominal f-number is the f-number you set on the camera/lens. (Except if you are using Nikon gear, another story.)
So, if you have set the camera/MPE-65 to f/8 and you are operating at 3X magnification, the effective aperture, the one you are actually using, is around f/ ( 8 * (1+3)), or around f/32. If you are using TTL flash metering that is fine (as long as the flash can provide enough power), but if you are using a manual flash like I do it needs to be adjusted as the magnification changes.
Also, although the working distance may not change a great deal on MPE-65 between 1X and 5X, if the flash is mounted on the camera then the distance between the flash and the subject will change quite a lot between 1X and 5X because of the amount of lens barrel extension. This can change the flash power needed (in addition to any changes caused by changes in effective aperture). Also, with the flash units mounted on the camera the lens extension means that you probably have to change the position of the flash heads when changing magnification a lot so as to get the light to play on the subject and not be blocked by the lens barrel (and so as to not have the light falling behind the subject when you reduce the magnification).
In contrast, when using close-up lenses on telezoom lenses the effective aperture does not change with magnification, and so having found the right flash level for a scene I can go in and out by way of magnification and keep using the same flash level. Also, with the 45-175, because it doesn't extend when zooming, the distance between the flash heads and the subject remains the same as magnification changes (That is for any particular close-up lens. The flash to subject distance will change if you change to a different power close-up lens because working distance is inversely proportional to the power of the close-up lens.) The lens barrel does extend with my bridge cameras, but not so much as to be troublesome. I generally use the Raynox 150 and to a less extent the Raynox 250 on my bridge cameras and I don't have to change the flash power as I zoom in and out with either of them. (I do have to change the flash power if I change from one to the other of them).
I tried using a Yongnuo YN24EX (a third party alternative to Canon's MT-24EX) with the flash heads mounted on the front of the MPE-65. I know there are excellent macro photographers that use that sort of setup, and that particular flash unit, to make wonderful images, but it is another thing that didn't work well for me, especially towards 5X where the flash heads tended to get in the way. I couldn't arrange diffusers that were large enough to provide the sort of diffusion I like while being small enough to not get in the way.
All that said, look at the great results that some people get with the MPE-65. I'm not knocking it; it just isn't for me. This macro business is very much a personal matter as to what works and what doesn't. (It also changes for me over time btw, so maybe some time in the future you'll find me happily using the MPE-65.

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Nick
Summary of photo activity and output since 2007
https://fliesandflowers.blogspot.com/2019/01/when-i-retired-in-2006-i-had-it-in-mind.html
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