One person's rotten milk is another's cheese. It's not impractical to make and you'd be surprised how many bird photographers and the like are about, and they are all wishing for more reach. While not all would get rid of their Canon/Nikon gear, some could well consider an E-M1 and 400mm f4 to supplement what they enjoy doing. You know, these are sort the people who own m4/3 gear for one thing and FF for another; it's not unheard of under any circumstances.I hope Olympus makes your lens, I really do. I was merely stating why I think it is impractical for them to do so.
If you look closely at compacts, they have "equivalent" focal lengths and small sensors. The Panasonic FZ200 for example, has a 25-600mm f2.8 equivalent zoom, but a 5x+ crop factor. The actual lens is a 4-108mm f2.8 and it's a pretty big lens:This doesn't compute. Lens diameter should also be tied into sensor size, not just focal length. If what you say is true, then I don't understand how compact cameras can exist. Please elaborate. Also, there definitely are lenses that are shorter in physical length than their actual focal lenght, so...?
Subaru made the Baja! Indeed an odd duck, but for some perfect. The mythical 400 would be less of an oddity and probably more practical, to at least some folks.If Subaru made an el camino style AWD, I would dig it! My current 4x4 is a 1969 chevy suburban. Admittedly I'm an odd duck, but variety is the spice of life!
The price of a 400/4 would kill it for so many m43 users that it would be a shame.
I was always appreciative that Canon supplemented their super-high-priced models with some under-2k primes like 200/2.8, 300/4, and 400/5.6. The optics in theses lenses are/were exemplary. They brought that excellence to a vastly bigger and very grateful audience.
That's what I would like to see from Oly, not just for me, but for most of us.
As you can see I agreed with you much earlier. The lens that I don't think is fair to ask for is the long fast lens, due to it not having an economic market of buyers.Well, Canon make a 400mm f5.6 tele lens and it costs less than $1600. There are compromises that can be made, including anything between f4 and f5.6 in order to reduce size and cost, if desired.