Olympus: Make 2x teleconverter!

I actually want now olympus to make 2x teleconverter that supports 40-150 and 300mm. It would really hit nicely for a $400-500 price tag!

I would use 40-150mm way more as it would be 80-300mm f/5.6 and be very usable lens next to 75-300mm. It would not be as sharp as 300mm is but when 40-150mm already is as sharp as 75mm f/1.8 then there is sacrifice be made to give that zoom range!

It would be very huge hit against panasonic 100-400mm at once as both would be f/5.6 at 300mm. And then 300mm vs 400mm is fairly small difference (1.25x).

And 300mm would become 600mm f/8. That would be super sharp still and offer such a blow to 100-400mm because then you can just remove the teleconverter when needing to use 300mm instead 600mm. And as panasonic-leica is at 400mm sharpest at f/8. It would not make much difference if it would be on olympus sharp wide open at f/8.

Now thinking that. It would be best option for Olympus to make quickly to counter the 100-400mm benefits!

Why I would buy 100-400mm for 2400, when I could put 300-500 to 2x converter? As I already have invested 1500 for 40-150mm +1.4x converter, putting little extra would be nothing!

Now, lets compare Robin Wong picture he made to back up his claim about 40-150mm being almost as sharp as 75mm f/1.8:

http://robinwong.blogspot.fi/2014/10/olympus-mzuiko-40-150mm-f28-pro-lens_13.html

Which one is the 75mm f/1.8?

So would there be enough sharpness to spare for 2x teleconverter at f/5.6?

The 1.4x doesn't weaken the sharpness visually much, if at all (we do know it is there because it is mathematically proven weakening) as you can see from Robin Wong excellent test results.

I would buy pre-order one in first day. Would you buy one?

For me it would be the reason not to buy 300mm f/4 as I am not so for long ones and I don't need f/4 but if it would cost 1200 I would take one

OzRay wrote:

. . . It's generally been acknowledged that a 1.4x extender is the best and a 2x is pushing things. That's why some have produced 1.7x extenders, just to eke out a compromise.

Anyone who has used a series III Canon EF 2x converter with one of the new Mk II big white EF primes primes will absolutely disagree with this statement. In the hands of an expert user ( see the work of famed bird photographer Arthur Morris) superb results can be obtained, demonstrating that the limitations of a good 2x with an excellent lens are less to do with the optics and more to do with the skill of the photographer.

Peter