I far as I am concerned the weight of the 300 PF is irrelevant. It would not be of interest if it was an mFTs lens. I hope the OM Systems lens is not a PF/DO lens in order to reduce the weight. The 300 f4 without tripod mount is 1270. All the weights I listed are without tripod mounts.
I see, so the 300/4 is still the lightest of the 3 with hood/tripod foot. It is only marginally lighter than the Sigma and Sony lenses, despite slower/shorter focal length.
I don't know who you're speaking for, but I would certainly like a 500PF for M43 mount. I know I'm not the only one too, as I've seen others asking about adapting that lens to M43 body.
Lenstip for the Nikon 500mm PF
- significant contrast decrease during the performance against bright light.
This is their only negative, however as someone who photographs birds which often are against bright light, I consider this a serious problem. If someone solves this problem, then a sharp low weight PF/DO lens would be fine.
It doesn't make sense to adapt a Nikon 500mm PF since there are no decent AF F-MFT adapters like Fringer has made for Fuji.
It would make a ton of sense though, for OMDS to adapt the Sigma 500mm for this mount. It would be a great wildlife pairing with people's existing Olympus 300mm or Panasonic 200mm primes.
But when I wrote about it (
https://www.dpreview.com/forums/post/68184417), a lot of forum members disagreed, saying that 500mm is too long for most bird photography. I can shoot BIFs at 600mm but I know it takes a lot of practice (I used an EE-1 red dot sight for a while). So it's possible that I had overestimated the demand for such a lens, going by my own preferences.
