Is the olympus m zuiko 150 400mm f 4 5 tc1 25x is pro long enough for birds?

Yes, for most birds it is. On Micro Four Thirds this lens frames like 300-800mm on full frame, and birds are usually where I say you can never have enough reach. Its f/4.5 aperture also gives about the depth of field of f/9 there, so it's easier to keep a bird sharp at the edges of the frame. The built-in 1.25x teleconverter takes it to 500mm at f/5.6 when you need more.

It's a good choice for hiking and travel wildlife, which is exactly where I'd put Micro Four Thirds. Good bodies to pair it with include the OM System OM-1 Mark II for fast action, the OM System OM-5 Mark II if you want to carry less, and the Panasonic Lumix G9 II if you shoot a lot of fast sport.

For the full picture of reach, see Wildlife and sport.

Written by Claude from this site's pages.