Sony 100-400mm F5.6-8 OSS sample gallery: what the budget telephoto delivers in the real world

Earlier this week, Sony announced the FE 100-400mm F5.6-8 OSS, a stabilized, full-frame telephoto zoom that comes in well under $1000. We were able to spend some time shooting with it to see how it performs, and you can see the results in the gallery below.

What the images won’t show is just how easy it is to carry around. It tips the scales at just 654g (23.1oz), which, combined with its length, meant that it and the a7R V I had it attached to fit comfortably into my sling bag, so I didn’t think twice before bringing it along on hikes and other outings.

Unfortunately, Sony hasn’t copied Sigma’s approach of letting you relatively easily overcome the lock if you’re purposefully zooming; on one occasion, I found myself fumbling for the switch after trying to photograph a bird and discovering that the lens wouldn’t budge.Mitchell Clark

The lens feels nice in the hand given the price, and the zoom ring is easy to use, with a relatively short throw. It’s an extending zoom, so the center of gravity inevitably changes as you adjust your focal length, but that weight means it’s still quite easy to manage. Lens creep, where it will slowly extend as you walk around with it, is an issue, though the lens does have a lock switch to keep it at 100mm. It’s nice to see that Sony has still included that detail, along with the focus limiter and function button, despite the lens’s budget nature.

Sony’s linear focus motors continue to make for a very good AF experience, with the lens able to quickly and accurately go from focusing close up (though not that close; it has a 0.86m (2.8′) minimum focusing distance at the long end) to far away. However, the manual focus ring is less lovely, as its stepped response and lack of precision made it very difficult to focus on a bird that the camera wasn’t able to recognize, or a particular part of a flower. 

While I haven’t subjected the lens to a full battery of tests, I’m pretty happy with the images it produced, again, given its focal range and $850 price tag. However, I’ll add the caveat that the entire state of Washington was covered in wildfire smoke for the entire time I had the lens, and it was especially bad in Spokane, where the gallery was shot. That makes it hard to judge things like sharpness, especially for a telephoto lens. 

This photo was taken around 8PM, while there was still plenty of light out, at least to my eye.
Sony a7R V | Sony FE 100-400mm F5.6-8 | 400mm | F8 | 1/500 sec | ISO 10000
Processed with Capture OneMitchell Clark

Of course, a major limit to the image quality you can get out of this lens will be its light-gathering ability. I found myself having to put it away relatively early in the evening; even before sunset, shooting at 400mm in the shade meant having to raise the ISO up to 10,000, even with the benefits of coordinated in-body and optical stabilization.

Still, I’m sure many people will be willing to make that trade-off, given the lens’s size and price, especially if they mostly shoot in the daylight. Canon has already proven that there’s a market with its very similarly-speced option, and while third-parties like Sigma and Tamron have made budget-oriented telephotos for E-mount, they are about twice the weight due to their more ambitious focal ranges and light-gathering abilities. It’s also nice to see Sony releasing a 100-400mm aimed more towards beginners, after its announcement of the $4300 pro-grade FE 100-400mm F4.5 GM OSS earlier this year.

Thanks to Sony for the loan of an a7R V to shoot this gallery. All images were processed using our standard lens workflow in Capture One, with the manufacturer’s distortion correction applied but no correction of vignetting. The profile fixes an extremely minor amount of barrel distortion at the lens’ wide and long ends, and we don’t consider it to be an essential part of this lens’s design.