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Thread: Olympus EX-25

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    Default Olympus EX-25

    There is not too much practical information or reviews of the Olympus EX-25 on the net.
    I wonder how good is it in "real life".
    How good are the results?
    How does it work with lenses like the 14-54, 14-42 and 40-150?
    Can you post samples?
    Thanks!

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    Default Re: Olympus EX-25

    There have been a lot of mentions on this forum concerning how well the EX-25 works with the 40-150 lens. I've mentioned it several times myself - how easy it is to use because you can get an approximate focus by using the zoom and then get perfect focus using MF or even AF; also that the working distance (about 1 to 2 feet, depending on the zoom) is really fine.

    As far as samples, I don't have any worth displaying, but the results are as sharp as any pictures taken with the 40-150, because as you probably know, the EX-25 does NOT affect image quality, since it has no optics in it (it is just a hollow tube, like all extension tubes).

    As far as the 14-42, I did try it with the EX-25 when I first got the EX-25. It worked OK, and I was even able to use AF, but the working distance was so awful that I decided it was not very usable. The lens was almost pressed right up against the object, with a working distance of less than an inch. The biggest problem I had was that I could not fram the object like I wanted to. I was experimenting with a postage stamp and wanted to get the whole thing in the frame but couldn't because when I moved the camera back I had to use the zoom to reacquire focus, and wound up with about the same framing as before. Anyway, I gave up on it as not too useful, and later when I tried the 40-150, it was SO MUCH better that I never tried the 14-42 again.

    As far as how does the 40-150 + EX-25 compare with the 70-300 all by itself (it focuses very close without a tube), they are very similar. What's better about the 40-150 setup is that it is smaller and lighter, so it is easier to handle and aim (the 70-300 is very end-heavy and unbalanced on a tripod, which can be a problem with macro work).

    These are just my general impressions.
    Rich
    Olympus E-M10; Panasonic GM5
    m4/3 lenses: Oly 75-300; Oly 14-42 f3.5-5.6 II R; Oly 17 f1.8; Oly 40-150 f4.0-5.6 R; Oly WCON-P01 adapter; Rokinon f7.5 fisheye; Sigma 19 f2.8; Pan 20 f1.7; Pan 12-35 f2.8; Pan 12-32

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    Default Re: Olympus EX-25

    Just wanted to add several more points about the 40-150 + EX-25 vs the 70-300. The obvious advantage of the 70-300 is that it focuses continuously from very close to infinity, so it is much better for just walking around shooting anything that moves.

    With an extension tube, once you have it attached, you are in "macro mode," and cannot use the lens for anything but closeups.

    But, if I had to take some closeups of some objects say for selling on EBay, I would definitely use the 40-150 + EX-25 instead of the 70-300, just because it is easier to handle.
    Rich
    Olympus E-M10; Panasonic GM5
    m4/3 lenses: Oly 75-300; Oly 14-42 f3.5-5.6 II R; Oly 17 f1.8; Oly 40-150 f4.0-5.6 R; Oly WCON-P01 adapter; Rokinon f7.5 fisheye; Sigma 19 f2.8; Pan 20 f1.7; Pan 12-35 f2.8; Pan 12-32

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    Cool Re: Olympus EX-25

    Quote Originally Posted by Rony Zmiri View Post
    There is not too much practical information or reviews of the Olympus EX-25 on the net.
    I wonder how good is it in "real life".
    How good are the results?
    How does it work with lenses like the 14-54, 14-42 and 40-150?
    Can you post samples?
    Thanks!
    I personally found it hard to use and eventually sold it to somebody more into macro photography than I am. As RAH says, it is better on the telephoto lenses like the 40-150mm and for the normal lenses like the 14-54mm and 14-42mm, it will likely only work at the max. telephoto range.

    I tend to be do a quick shot with auto focus type shooter, and I don't shoot a lot of macro, while with the EX-25 you have to carefully move the camera back and forth to find where the item is roughly in focus before doing the auto or manual focus. The zone of focus is real small. If you've ever used the close-up lenses (or filters as some call them), there is a similar thing to find the zone of focus.

    For example going by the UK Olympus page on the EX-25 (Olympus America for some reason doesn't list things like this):
    http://www.olympus.co.uk/consumer/ds...tibilities.htm

    You see for the 40-150mm lens (though I suspect this is for the old 40-150mm lens, and not the new one, but it should be close enough):

    • 40mm: magnification: 0.58 - 0.62x, focusing range: 20.8 - 21.4cm
    • 80mm: magnification: 0.31x, focusing range: 40.7cm
    • 150mm: magnification: 0.17 - 0.28x, focusing range: 79.6 - 110.1cm

    Remember, the focusing range is from the sensor itself, not from the outer edge of the lens. On your camera body, there should be a circle with a line through it on the right side underneath the flash hot-shoe -- this indicates where the sensor is within the body.

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    Default Re: Olympus EX-25

    Quote Originally Posted by Michael Meissner View Post
    For example going by the UK Olympus page on the EX-25 (Olympus America for some reason doesn't list things like this)
    That's because Americans wouldn't be smart enough to understand it if they did post it.
    Olympus E-3 | Olympus E-PL2 PEN | Olympus E-PM1 PEN | Zuiko ED 50-200mm f/2.8-3.5 SWD | Zuiko 14-54mm f/2.8-3.5 | Vivitar 100mm f/2.8 Macro | Carl Zeiss Sonnar 135mm f/2.8 | Konica Hexanon 50mm f/1.4 | Konica Hexanon 85mm f/1.8 | G.Zuiko 50mm f/1.4 | Zuiko 35mm f/3.5 Macro | Zuiko 25mm f/2.8 | KMZ Jupiter-3 50mm f/1.5 | E.Zuiko 200mm f/4 | Zuiko 75-150mm f/4 | Olympus EC-14 teleconverter | VF-2 and VF-3 Viewfinders | EMA-1 Mic Adapter | Olympus FL-36R and FL-50R speedlights

    cyclopsphoto.ca

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    Default Re: Olympus EX-25

    Quote Originally Posted by Michael Meissner View Post
    with the EX-25 you have to carefully move the camera back and forth to find where the item is roughly in focus before doing the auto or manual focus.
    If you use a zoom lens like the 40-150, you do not have to do this - you can use the zoom ring to do it for you. In other words, just place the camera in a reasonable spot (say 2 feet away), and use the zoom ring till you obtain focus, which happens very quickly. Then use MF or AF to fine-tune it.

    The reason this works is that whatever focus the lens happens to be on is the in-focus sweat-spot for SOME focal length. So you find it by using the zoom ring till you obtain focus. With a fixed lens, yes, you have to move the camera, with the same principle - whatever focus point the lens happens to be at is the focus point for the distance the camera is from the object, so you move the camer to obtain initial focus. It is much easier to move the zoom ring.
    Rich
    Olympus E-M10; Panasonic GM5
    m4/3 lenses: Oly 75-300; Oly 14-42 f3.5-5.6 II R; Oly 17 f1.8; Oly 40-150 f4.0-5.6 R; Oly WCON-P01 adapter; Rokinon f7.5 fisheye; Sigma 19 f2.8; Pan 20 f1.7; Pan 12-35 f2.8; Pan 12-32

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    Default Re: Olympus EX-25

    Quote Originally Posted by Neddog View Post
    That's because Americans wouldn't be smart enough to understand it if they did post it.
    At least you understand Canada isn't part of America.

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    Default Re: Olympus EX-25

    Quote Originally Posted by Timskis6 View Post
    At least you understand Canada isn't part of America.
    Yes it is. It is even part of North America. It is just not part of the USA (although it is mostly owned by the USA).

    Regards,

    Alan

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    Default Re: Olympus EX-25

    Please Guys, This is a photographic forum not a platform for racist bigotry.
    You ask how does the ex-25 work? It sits between the camera body and the lens thereby extending the focal length by 25 mm. It is this extension that makes any attached lens incapable of focusing at infinity, the sensor point (see previous post) would need to be moved further back to accomodate the extension. In doing this it reduces, quite considerably, the close focusing distance of the objective lens in use, It is this that limits the usefulness of extension tubes with short focal length lenses, the distance between lens and subject would be very small and the magnification of the subject so large as to measure depth of focus in mm. I use mine predominantly with my 50 - 200mm and mostly halfway through the zoom range. it is superb for stamen studies on flowers but essential to use it on a stable platform preferably a tripod.
    It is a useful piece of kit, but only if you are into macro and want to turn every lens in your bag into a macro lens.
    Last edited by Photoblower; 03-14-2009 at 06:36 PM. Reason: forgot to load example photograph

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    Default Re: Olympus EX-25

    Both of these were taken with the EX-25 and the 40-150mm zoom




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    Default Re: Olympus EX-25

    that fly shot is superb! Thanks for sharing.

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    Default Re: Olympus EX-25

    Olympus would serve its users well if they could release a range of auto extension tubes for their digital lenses. The old Zuiko 7mm, 14mm, & 25mm auto tube set (which I still have for use with my 90/2) really made life easy for close up/macro photographers. The EX25 appears to be a dedicated tube for the ZD 50/2. We need a more general purpose auto tube set for the rest of the lenses.
    Regards,
    J A P

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    Default Re: Olympus EX-25

    Quote Originally Posted by jap View Post
    Olympus would serve its users well if they could release a range of auto extension tubes for their digital lenses. The old Zuiko 7mm, 14mm, & 25mm auto tube set (which I still have for use with my 90/2) really made life easy for close up/macro photographers. The EX25 appears to be a dedicated tube for the ZD 50/2. We need a more general purpose auto tube set for the rest of the lenses.
    I agree - they might be struggling to fit the IC into a 7mm tube though. I'd REALLY love to be able to macro with the 7-14mm DZ.

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    Default Re: Olympus EX-25

    Quote Originally Posted by Alan Baxter View Post
    I agree - they might be struggling to fit the IC into a 7mm tube though. I'd REALLY love to be able to macro with the 7-14mm DZ.

    Yeah, that's one of the "failings" of the ZD 7-14mm, the inability to get as close as a prime lens. However, no one in their right mind has a right to expect that from a zoom. (But whoever said I was in my right mind? )

    It would also have helped to have a built-in filter turret for, say, a polarizer, UV, and a few ND filters. Color compensating and color conversion filters can be more than adequately handled by software.
    Last edited by jap; 03-21-2009 at 12:57 AM.
    Regards,
    J A P

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    Default Re: Olympus EX-25

    Quote Originally Posted by jap View Post

    Yeah, that's one of the "failings" of the ZD 7-14mm, the inability to get as close as a prime lens. However, no one in the right mind has a right to expect that from a zoom. (But whoever said I was in my right mind? )

    It would also have helped to have a built-in filter turret for, say, a polarizer, UV, and a few ND filters. Color compensating and color conversion filters can be more than adequately handled by software.

    Can you imagine the pictures? XWA macro: You could have a giant picture of a bee, with a field of flowers all in focus, fantastic sense of depth... a picture no-one else could take.

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    Default Re: Olympus EX-25

    Quote Originally Posted by Alan Baxter View Post
    Can you imagine the pictures? XWA macro: You could have a giant picture of a bee, with a field of flowers all in focus, fantastic sense of depth... a picture no-one else could take.
    Exactly! That is the beauty of having what is effectively a wide angle macro. When you have been spoiled by the old Zuiko system, it's hard to cope with doing without.

    Nevertheless, I suspect that Oly is not through with their macro offerings yet. Besides the fabled 100mm macro, there were early rumors of a 25mm macro. When one considers that the old Zuiko 50mm F/2 macro was a late offering, there is still hope for a possible 25/2 (or 25/1.8!) macro, certainly something with a larger filter size than 43mm - the current filter size of the 25/2.8.

    Assuming all these macros allow 1:2 magnification, a 100mm macro may prompt the production of a 50mm extension tube to carry it to lifesize magnification. A 25m macro could influence the making of a 12.5mm tube. A 12.5mm and something smaller - 10mm to 7mm - could serve as tubes for the ZD 7-14mm. The 35mm F/3.5 goes to 1:1 by itself. Therefore, an effective tube combination (e.g., 25mm + 10mm) would allow 2:1 magnification. Production of the ZD equivalent of the old Zuiko Telescopic Auto Tube 65-116mm, combined with image stabilization, would really make handheld photomacrography convenient.

    And . . . if Oly ZD ever decides to produce ZD equivalents of the old Zuiko 38/2.8 and 20/2 macros, you are talking about some serious! magnification for the digital realm!
    Last edited by jap; 03-15-2009 at 07:42 PM.
    Regards,
    J A P

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    Default Re: Olympus EX-25

    I have just received my EX25 so I haven't managed to take more than a couple of test shots with my 50mm f2 Macro lens yet. First impressions are good but with the usual depth of field problems at the magnifications involved using auto focus isn't really very practical. It reminds me of the old days when I used to use a bellows for Macro photography. To get the desired focus then I needed a focusing rail and I suspect the same will be true here so I will be experimenting with an old focusing rail I have and leave the camera in manual focus.

    Neil

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    Default Re: Olympus EX-25

    Does anyone still use this? I just got one and I have the following bodies and lenses

    Bodies: E-520 and E-30

    Standard lenses: 14-42mm f3.5-5.6 & 40-150mm f4.0-5.6

    Pro lenses: 12-60mm f2.8-4.0 SWD, 50mm f2.0 Macro and the 50-200mm f2.8-3.5 SWD.

    I have tried to use it with the 50mm macro lens but I don't feel I am able to get those super crisp shots I see other do without a tripod. Fair to say that my hands do shake some which I do blame the majority of lacking being able to focus on subjects if I just hold the camera in my hands. I can see further up those super crisp shots made with the 40-150mm lens and it's shots like that I aim for.

    So any advise would be welcome.

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    Default Re: Olympus EX-25

    Quote Originally Posted by Hitokiri_2000 View Post
    Does anyone still use this? I just got one and I have the following bodies and lenses

    Bodies: E-520 and E-30

    Standard lenses: 14-42mm f3.5-5.6 & 40-150mm f4.0-5.6

    Pro lenses: 12-60mm f2.8-4.0 SWD, 50mm f2.0 Macro and the 50-200mm f2.8-3.5 SWD.

    I have tried to use it with the 50mm macro lens but I don't feel I am able to get those super crisp shots I see other do without a tripod. Fair to say that my hands do shake some which I do blame the majority of lacking being able to focus on subjects if I just hold the camera in my hands. I can see further up those super crisp shots made with the 40-150mm lens and it's shots like that I aim for.

    So any advise would be welcome.
    Mine worked well with my E-3, E-1 and 50mm f2 macro. You need to use a tripod for 1:1.
    Cheers,
    Don

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    Default Re: Olympus EX-25

    At 1:1 magnification, even the slightest 1/10 of a millimeter shake will cause blurry pictures.

    Add to the fact that you are probably using apertures around f/7.1 to get stuff in focus and you probably also have pretty low shutter speeds.
    Olympus E-M1 Mk II
    7.5mm f/2.0 - 17mm f/1.2 - 56mm f/1.4 - 9-18mm - 14-150mm II

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    Default Re: Olympus EX-25

    I have an EX-25 and don't think I've ever used it. I have the Zuiko 50 MM f2, and the Sigma 105MM and 150MM f2.8 macro lenses. What am I missing? What advantage does the EX-25 offer, other than allowing me to use other lenses as macro lenses?

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    Default Re: Olympus EX-25

    Its an extension tube that allows you to get closer. With the 50mm f/2 it allows you to shoot 1:1 macros, instead of 1:2.

    How useful that is depends on what you're trying to do. Most of the times, shooting butterflies and dragonflies, and other flies and whatnot, I found magnification even as little as 1:4 to be sufficient. But if you're trying to get a composition out of grains of sand, then it is useful.
    Olympus E-M1 Mk II
    7.5mm f/2.0 - 17mm f/1.2 - 56mm f/1.4 - 9-18mm - 14-150mm II

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    Default Re: Olympus EX-25

    Awesome. Thank you all for the advice and tips. Since my hands shake so much I'll just have to use a tripod when ever I use the EX-25.

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