Tokina SZ 500mm f/8 Reflex MF 500mm

The Tokina SZ 500mm f/8 Reflex MF is a tiny, lightweight mirror lens that's a blast for hiking and macro experiments, but it demands patience with manual focus and a tolerance for donut-shaped bokeh. It's a solid value at its lowest prices, but a frustrating paperweight if you expect traditional telephoto performance. Buy it for the portability and creative constraints, not for clinical sharpness.

Sharpness is a mixed bag. When you nail focus, the center is decently crisp, but it falls off toward the edges and gets hazy fast if there's strong backlight. The fixed f/8 aperture is dim, so your viewfinder will be dark and your ISO will climb in anything but bright sun. The real party trick here is the close focus distance of 1.7m, which gives you a 1:2.86 macro ratio. You can fill the frame with a butterfly from a comfortable distance, which is genuinely fun. But the donut-shaped bokeh is the lens's signature, and you'll either love the weird rings in your out-of-focus highlights or you'll hate them. There's no middle ground.

Stacking this against the Sigma 18-50mm f/2.8 or the Tamron 17-70mm f/2.8 feels almost unfair since those are standard zooms, but it highlights the trade-off. Those lenses are versatile workhorses with autofocus and stabilization. The Tokina is a one-trick pony, but it's a trick those zooms can't do: 500mm reach in a soda can sized package. If you need a general purpose lens, buy the Sigma. If you already have a standard zoom and want a cheap, light way to dip a toe into super-telephoto or weird macro work, the Tokina makes a weird kind of sense.

Pricing is all over the map for this lens, with a spread from $339 to a frankly absurd $13,946 across vendors. The low end is a steal for a 500mm lens that's this portable. At $339, it's an easy impulse buy for a specific kind of shooter. But if you're seeing it priced anywhere near four figures, walk away. You're firmly in used DSLR telephoto territory at that point, and those will run circles around this lens optically. Shop around and don't overpay.

The Tokina SZ 500mm f/8 Reflex MF is a weird, wonderful little lens that shouldn't work as well as it does. It's a catadioptric design, meaning it uses mirrors instead of a long barrel of glass to hit that 500mm reach. The result is a super-telephoto that weighs just 310 grams and fits in a jacket pocket. You're trading a lot for that portability though, namely autofocus, image stabilization, and any control over your aperture.

If you need reliable autofocus for birds in flight or sports, skip this entirely. The manual focus and dim aperture will leave you with a card full of blurry shots. Also, if the idea of donut-shaped bokeh makes you cringe, look at a used traditional telephoto instead, because that's the only bokeh this lens serves.

This lens is for the photographer who already knows what they're getting into. You're a hiker who wants a 500mm lens that won't break your back. You're a macro shooter who wants to try long-distance close-ups. You're someone who finds the donut bokeh charming, not annoying. If you're willing to work within its very specific, very rigid limitations, the Tokina SZ 500mm f/8 Reflex MF is a fun, affordable tool. If you just want sharp, easy wildlife photos, this isn't it.