Review on 🔍 Ultimate Zoom Power: Bower SLY30063M43 300mm f/6.3 Telephoto Lens for Olympus & Panasonic Micro 4/3 Cameras by Michael Hellewell

The good stuff first. Build quality is good, even better than I expected. It's all plastic but feels solid, the focus ring is grippy and there's no unexpected movement in details. As for image quality, it all depends on what you want from a lens. This is a slow (f/6.3), 300mm m4/3 lens (2x crop factor). And it's a mirror glass. You get ring-shaped bokeh, extremely shallow depth of field, and a very sensitive focus ring that moves about 1/3 of a full turn. Even the slightest touch on the focus tube can cause the subject to blur. Go hyperfocal, this is your only chance. It's almost impossible to focus on anything closer than 10 feet from you, impossible to focus on a moving object. You need a solid tripod and patience. And after that, you still get soft photos. Because this lens is soft. But you get an effective focal length of 600mm, which is one heck of a telescope. And if you're after 600mm then this is probably the cheapest you can get, with overall value for money that's not bad*. * Depends on the current retail price on Revain. I've attached a couple of shots taken with an old Panasonic GX1. Camera, one from a tripod (pencils), the other from hands. I didn't try too hard to get the shots as sharp as possible as I'm a lazy and bad photographer. I would buy this lens for $350. nope But for the $50 I bought it for, that's not a problem.