need to buy one of the 300mm's!

If you have a Panasonic body then get the Panny, for future proof body selection get the Panny.
I have not seen reviews of the new Olympus therefor we can only speculate regrading the performance.

 

If you have a Panasonic body, buy the Panny 100-300
It you have a Olympus body, buy the Panny 100-300 :smile:

I don't understand how it is possible to product and sell (and buy) lenses darker than f5.6 that is already too dark!

 

I am happy with the Oly one. Besides the smaller size, it also goes down to 75mm. Interesting for that occasion when the wildlife is coming towards you.

Here is another thread in which the pros/cons of both lenses are discussed:
https://www.mu-43.com/f38/p100-300-o75-300-ii-43439/

 

I am happy with my P100-300. I found it acceptably sharp across the entire range. The IS does have an advantage should you ever use a body without IBIS.

Gary

 

I pre-ordered the Olympus. Put it through some paces. It's staying.

 

I'm not sure I agree about the OIS being pointless for you. I have the OMD and use the 100-300 and switch the Mega OIS on and off as needed (and when shooting handheld, just for focusing value, I need it at times).

 

I'd get the Panny. Faster at the long end, IQ at least as good, OIS for bodies without IBIS, and I like the design of the available aftermarket tripod mount for the Panny much better than what's available for the Oly.

 

Available aftermarket tripod mount? I never knew this! A pointer please?

 

From the info in THIS thread. I really like it. Seemed pretty cheap too. I got the arca compatible version.

 

Thanks Doc, but how do I order one of these things? I don't speak German!

 

Just send them an email. They most probably speak English. Their email address is listed on this website (Kontakt = Contact Information):

Rudolf Rösch Feinmechanik - Kontakt

In case you encounter a language problem, I am happy to help out.

 

I just sent them an email. They then responded with how to order using paypal. Took about 2 weeks to get to me, but definitely worth the wait.

 

I'm the OP on that thread. Email 'em, their English is at least as good as mine, probably yours.

 

I recently picked up a Panasonic 100-300 and, whilst I've not done any controlled testing, it does seem to me that the IS in the lens is noticeably more effective than the OMD's IBIS - at least at 300mm.

 

Does the O.I.S in the Panasonic overide the I.S in the OM-D when activated on the lens ?

 

Only on the E-PL5 (and E-PL2 I assume). On the OMD, you need to turn off IBIS manually.