Why oh why doesn't Sony offer a >300mm prime ?????

I'm heavily (and happily) vested in Sony (a7r,a7s,rx100iii, rx10, A6000,etc) but in the next week or two I'm going to vest into the micro 4/3s system. Why? because Olympus offers a 40-150 (and a 1.4 TC reportedly perfected for this lens) which is a 300mm 35 equivalent and promises to offer a 300mm which would be a 600mm equivalent.
Why doesn't Sony offer anything like this? Rumors?
I experimented with the FZ1000 so I know the GH4 will be fine, but honestly I love my A6000/A7s combo. We're soon enough headed to s.America for a month and weight is super critical on this trip. In Alaska and s.Africa we enjoyed rental cars but on this upcoming trip its hoping from plane to train to bus to boat and everything will have to live on my back (and I ain't no spring chicken)........
Thoughts?

MedicineMan4040 wrote in post #17428340
I'm heavily (and happily) vested in Sony (a7r,a7s,rx100iii, rx10, A6000,etc) but in the next week or two I'm going to vest into the micro 4/3s system. Why? because Olympus offers a 40-150 (and a 1.4 TC reportedly perfected for this lens) which is a 300mm 35 equivalent and promises to offer a 300mm which would be a 600mm equivalent.
Why doesn't Sony offer anything like this? Rumors?
I experimented with the FZ1000 so I know the GH4 will be fine, but honestly I love my A6000/A7s combo. We're soon enough headed to s.America for a month and weight is super critical on this trip. In Alaska and s.Africa we enjoyed rental cars but on this upcoming trip its hoping from plane to train to bus to boat and everything will have to live on my back (and I ain't no spring chicken)........
Thoughts?

Why not an ef to e lens adaptor with a Canon 200 f/2.8 prime. That would give you your 300mm equivalent. You can get the af or manual adaptor. I ordered the Fotodiox one and it should be here tomorrow. I can let you know how it does.

Thanks Tmalone. I've got a Metabones III but that doesn't help me with BIFS and as I've posted in the A6000 thread the A6000 is def. BIF capable, I've lived it and know it....but where is the focal length I need. Its 400mm + not 300mm 35mm equivalent. As I said Sony won't but Olympus does. That said Oly's AF tracking is to be desired, yet Panasonic is there and getting better....add another irony. Panasonic gives lens stabilization and Oly has it in the body so yet another bottle neck to put the good 40-150 Oly on the Pana which means no IS....yet at 1/2000 that won't matter.
Bottom line is Sony could have had a sell, as if one (me the only one wanting a long FL e-mount lens??????) person would make a difference.
Back to your point, I've put long Canon lenses on the A6000/A7r and the results are great, and truth be known I grew up with a Nikon F2 Photomic where everything was manual !! Just that I'm spoiled
Just to show you I kinda know what I'm talking about here is an old Nex-7 with a Canon 400 5.6 and the second is an A6000 at 2200mm on a digiscope, manual focus does work

IMAGE LINK: https://flic.kr/p/kjxC​Xa

IMAGE LINK: https://flic.kr/p/o9Z7​Ai

Very impressive shots. I wasn't thinking about BIF. I saw S. America and was thinking landscapes, people, etc...

I'm with you on the landscapes/people and honestly I was not thinking BIFs in s.America but I'm sure their birds do fly.
A buddy told me I'd regret not taking the 7Dii and a big lens on the trip but my back won't complain at all. It wouldn't complain
if it were Sony based either but a lot of possible birds will be sitting and the Oly 40-150 + Oly 1.4 TC will give me 420mm effective
so we'll see what I can do.
Appreciate you thinking along in this too.

One of your options is to get a LA-EA4 and Minolta 100-300 APO.

You don't get stabilization but I don't think it matters that much for BIF ?

You do get a much faster AF.

On your A6000 it's an equivalent of 150-450.

Amamba that is a good idea but in the meantime I added a m4/3s system that give me super reach. The AF of the GH4 and/or the GX7 is not up to the AF of the A6000 it I think it would be a tie using the adapter for the a-mount lenses. What I have learned with the GH4 is that its focus is so fast sometimes with a BIF if you can get the bird in the frame you can get the shot. Mirrorless for BIF is just not there yet. I did read the Non n mirrorless is an exception but I'm not going there

MedicineMan4040 wrote in post #17496109
Amamba that is a good idea but in the meantime I added a m4/3s system that give me super reach. [B[The AF of the GH4 and/or the GX7 is not up to the AF of the A6000 it I think it would be a tie using the adapter for the a-mount lenses [/B]. What I have learned with the GH4 is that its focus is so fast sometimes with a BIF if you can get the bird in the frame you can get the shot. Mirrorless for BIF is just not there yet. I did read the Non n mirrorless is an exception but I'm not going there

I don't have A6000 but on my Nex 6 the AF with LA-EA2 is pretty fast. That's basically a focusing unit from A57 (IIRC) so if A57 + a lens is a good combo for BIF, then LA-EA + same lens will be as good on any Sony mirrorless.

MedicineMan4040 wrote in post #17428340
Why doesn't Sony offer anything like this?

Perhaps Sony has taken to heart the market's criticisms of its current products, so they do not think there is much inherent demand for a lens to be used in a photo application which the body is not (yet) currently ideally suited?!

Because Canon is dominating the sport photography market with all its super-telephoto lenses; and Sony aims to kick Nikon off the Number 2 spot 1st
Then Sony will come around and give Canon a very HARD kick on its lazy bum for sure

HA! X-tan I've got not a problem with that at all. You know I'm no ones fanboy...just give me what works for the least amount of pain on my shoulders

Spoke to a Canon rep today.
I told her that I'm not going to get 5Ds or 5DsR due to zero improvement with its DR over 5D3, and she didn't disagree with me.
Seem to me Canon know its 5Ds / 5DsR have disappointment many Canon shooters.
And I'm ready to get better gear from Sony any time.

One has to admit it kinda comical the sensor of the dinky rx100iii can stands its own DR wise against any Canon body. If life were only about dynamic range I'd be set.
OK I exaggerate a bit....but not by a whole lot.

Almost get myself a Sony Nex-7 today as it's cheap as chips

Anyway my money is ready for 50MP Sony

50mp and an A6000 autofocus and I'm in. Be icing on the cake with 5 axis stabilization.