Best zoom lens upgrade: 8 tested

Best zoom lens upgrades

Designed specifically for the Four Thirds SLR system, the Olympus 14-54mm has a useful effective zoom range of 28-108mm.

Street price : around £580

Read the full Olympus Zuiko Digital 14-54mm f/2.8-3.5 II review

Image tests

Sharpness Test

Best dslr zoom lens upgrades: 8 tested

See full-res image

Images from the Olympus lens are visibly softer than the others in the group test, and it's especially noticeable when it's at 54mm.

Fringing test

Best zoom lens upgrades

See full-res image

At 14mm, red fringing is visible at the very edges of the frame, but as the focal length increases the influence drops off.

Distortion test

Best zoom lens upgrades

See full-res image

Distortion performance is good, with mild barrelling at 14mm. The 2x crop factor of the Four Thirds sensor means wide angles are required.

Image test verdict

Throughout the focal range sharpness is low, but there's only a little softening towards the edges. Fringing and distortion results are good.

Score: 3/5

Latest in Camera Lenses
Canon RF 20mm F1.4L VCM lens on a wooden table, alongside three other Canon hybrid prime lenses
Canon’s new 20mm f/1.4 lens could be the ultimate wide-angle prime for astro photography and video work, but its pricey
Viltrox 135mm F1.8 Lab lens for Nikon Z-mount, in the hand, attached to a Nikon Z6 II
I tested the stunning Viltrox 135mm f/1.8 LAB lens for Nikon and it’s my new favorite portrait lens, except for this one drawback
Sony FE 16mm F1.8 G lens indoors
Sony’s super wide-angle 16mm F1.8 prime shoots fast and travels light, but relies on distortion correction
Sony FE 400-800mm F6.3-8 lens
I tested Sony’s longest telephoto zoom lens, and it’s a winner for wildlife photographers
Sony FE 400-800mm F6.3-8 G OSS indoors
Sony unveils its first lens with a massive 800mm reach – and it could be a dream optic for wildlife photography
Sigma
I’ve tested all 4 of Sigma’s bargain f/1.4 primes for Canon cameras – here’s how to decide which one to buy
Latest in Best
Some of the best mobile controllers on a colorful background.
The best mobile controllers 2025: upgrade your portable play
Best controllers for Monster Hunter Wilds featuring Razer Wolverine V3 Pro
The best controllers for Monster Hunter Wilds: the gamepads most suited for the game’s tricky control scheme
Best password manager for families
Best password manager for families of 2025
A woman taking a selfie on a camel in Morocco.
Best eSIMs for Morocco for 2025
DJI Mic 2 with windshield
The best wireless mic for 2025: top wearable microphones for content creators
Lead image for TechRadar's guide to the best Fujifilm cameras, featuring the X-T5
Best Fujifilm camera 2025: top mirrorless and compact cameras, retro and otherwise