Long lens for Pocket

Hi.

I wonder what would be longest good lens for Pocket?

Thinking of X - 200 mm or more and good stabilizer.

I have no cam yet but i just figured it would be good for traveling as my big rig
always gets left home as it is to big

Any ideas or directions are welcome.

Did you look through some binoculars 12X? Something similar will BMPCC + 200mm

Not really.

I was just wondering what others use and if it is doable.

I love my nikon 80-200mm f 2.8. It is tack sharp, has manual aperture and I believe is one of the few nikons which is parfocal, meaning it will hold focus through the zoom ( i have to verify that next time I pull it out)

I think in terms of super 35mm equivalent so looking at what range it gives you:

it will give you a 151mm-378mm fov equivalent bare adapter.

If you add a metabones speed booster it will give you double duty as a 117mm - 292mm FOV at an f2.0.

That is a really nice long lens spread out of one lens. Add a 2X doubler and you can double all of those values at a two stops loss in light.

I would use it outside mostly so stop or two light loss is ok i think.

On 2,5 k body most of the time i have to use ND in normal conditions so this would be ok.

Thnx.