Olympus 8-25 f4 Pro leaked

djtaylor7

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Lens arrived this morning. So far very impressed. The opening and closing is a bit like a larger version of the PL 12-32 pancake lens. Not sure about the wrapping cloth, but the lens hood is good with a latch, unlike the 12-45 Pro one. Photo of the lens on the E-M1 Mkii, and quick jpgs of a flower arrangement. It certainly focuses very close.

Olymp 8-25mm 1.jpg
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Flowers 8-25mm 14mm.jpg
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Flowers 8-25mm 13mm.jpg
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I have done both and both times with extending lenses. Yesterday it was mostly a rainy day but I went out to a particularly lovely cemetery in what was mostly a break from the heavy rains to shoot. Days like that under a lot of trees offer very even lighting so you don't get a lot of harsh contrasts between shadows and sunlight. It was kind of sprinkling for most of that time but towards the end the rain started up and my camera and lens were definitely "wet". Example shot...

View attachment 896906 2021.07.03-16.17.10 by Patrick, on Flickr

so don't let a little rain deter you if your equipment is weatherproof. Take advantage of the light which is great for certain situations.

And one time I spilled beer on my E-M1 + MMF-3 + 12-60 SWD at a BBQ party. A quick rinse under the hose and I was good to go. Nothing ruins a party for you then potentially destroying a couple grand of equipment from a beer mishap. I love my Olympus weather sealing!

Yay for weather-sealing. If Olympus wasn't weather-sealed, I wouldn't even be out if there was a hint of rain. And it's beer-sealed too!
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A quick wipe down with a microfiber towel and no problem.
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Wanted to add one more shot to illustrate the benefits of weather-sealing. This was on our trip to Japan in October 2013 and I had my first weather-sealed camera, the EM5 w/12-50 kit lens. It was my first M43 too. In the Gion area of Kyoto, I just happened to grab one shot of this wedding party in the rain. You might see the rain streaks if you look closely. That often rainy trip convinced me that weather-sealing was essential, not a nice-to-have, especially for travel. If the camera hadn't been weather-sealed, I wouldn't have 75% of the shots I took on that trip. It was fortuitous I chose the weather-sealed 12-50 instead of the 14-42 as the kit lens early in 2013, not then realizing how rainy this trip would be. That combo was often all I took out when we were walking around. I've posted this shot before, so forgive me for the repeat.
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And, as Kirk Tuck points out, if you don't take your camera out, you won't get a shot.
https://visualsciencelab.blogspot.com/2021/07/sometimes-when-you-are-out-in-driving.html
 
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PakkyT

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all these annoying system facepalms make me want to torture the Oly & Pany guys of the m43 mount comitee
I believe the m43 mount specifications are very basic in that it gives the mount dimensions and communication protocol. Everything else are outside the system specs and are "gravy" added by the individual manufacturers such as weather sealing, dual/sync IS, etc. Since weather sealing at the mount is likely not addressed in the specification at all, that the two systems can seal together at all is probably more by chance than by design.
 

ac12

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I believe the m43 mount specifications are very basic in that it gives the mount dimensions and communication protocol. Everything else are outside the system specs and are "gravy" added by the individual manufacturers such as weather sealing, dual/sync IS, etc. Since weather sealing at the mount is likely not addressed in the specification at all, that the two systems can seal together at all is probably more by chance than by design.

As no one on the m4/3 committee probably thought of weather sealing back then, the position of the screw in the mount was probably not relevant to the specs.
20/20 hind sight.
 

PakkyT

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isn’t that frustrating?
Not really. It gives companies the minimum required to make a lens work on a m43 body while giving them the full freedom to do whatever they want that they feel will make their product(s) stand out by not being hampered by overly restrained specifications.

For example, once you define how weather sealing has to be performed, no other method including much more effective designs could be used if they violated the specification. Or if everyone had to agree on a dual/sync IS method, you would probably get the lowest common denominator and probably not a lot of innovation on it moving forward if any changes requires a committee of your competitors to approve your updates to the specification.

As no one on the m4/3 committee probably thought of weather sealing back then

Doubtful considering weather sealing was implemented in all the Oly Pro models (E-x) of the 4/3rds going back to the original E-1. Micro four thirds simply reduced the mount and removed the mirror so more of a migration of the 4/3rds specification rather than a new system and certainly weather sealing was well known by the people who put together than new m43 version of the standard.
 

doady

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Olympus and Panasonic being different is ultimately a good thing despite its annoyances. More choices can only be good for photography. Maybe it's just me, but I got into Micro Four Thirds thinking of Olympus as one system, with the intention of buying Olympus bodies and lenses. Any compatibility with Panasonic is just a bonus. It would be just as sad if Nikon disappeared, for example. We are all photographers in the end.

Maybe if there is one standard I expect, it's for focal length. I was surprised to learn from Gordon Laing's comparisons that 8-25mm F4 has slightly wider FOV than 8-18mm F2.8-4 at 8mm, and a narrower FOV than 10-25mm F1.7 at 25mm. I never even thought about that before.
 

djtaylor7

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Not really. It gives companies the minimum required to make a lens work on a m43 body while giving them the full freedom to do whatever they want that they feel will make their product(s) stand out by not being hampered by overly restrained specifications.

Totally agree, and personally I think it is a pretty good standard. The data interchange allows the basics, but also things like knowing the lens has to be opened, and I can update the lens firmware from my Olympus body, even for a Panasonic lens (I was looking at a Sigma lens on another system and it seemed to need a special jig to do an update).

If it was over specified it would reduce innovation, and be less incentive for the suppliers to do clever things.
 

ac12

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Not really. It gives companies the minimum required to make a lens work on a m43 body while giving them the full freedom to do whatever they want that they feel will make their product(s) stand out by not being hampered by overly restrained specifications.

For example, once you define how weather sealing has to be performed, no other method including much more effective designs could be used if they violated the specification. Or if everyone had to agree on a dual/sync IS method, you would probably get the lowest common denominator and probably not a lot of innovation on it moving forward if any changes requires a committee of your competitors to approve your updates to the specification.

I was thinking about the dual/sync IS.
That may mean the IBIS and OIS of Olympus and Panasonic work the same. So they might not be able to make a "better" IBIS or OIS, cuz it may break the dual/sync IS going cross platform.
So as much as I may not like it, I think you are correct.

At least we can chose which IS to use, IBIS or OIS.
 

PakkyT

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At least we can chose which IS to use, IBIS or OIS.
Actually in some cases we can not. As an example, with my E_M1.1 + 12-100 PRO I can not turn off the Sync IS feature. I can only turn IS on or off, all or nothing. No experience with Panasonic's version so I don't know if they allow you to "decouple" the dual IS feature.
 

ac12

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Actually in some cases we can not. As an example, with my E_M1.1 + 12-100 PRO I can not turn off the Sync IS feature. I can only turn IS on or off, all or nothing. No experience with Panasonic's version so I don't know if they allow you to "decouple" the dual IS feature.

What I meant was that with a Panasonic lens on my Olympus EM1, I can select either Olympus IBIS or Panasonic OIS.
 

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