The SELP18105G is a power zoom with a constant f/4 aperture. Zoom on a recording and the exposure does not shift, and the motor keeps the move smooth. That is why it has long been a favorite for APS-C video.
Range and stabilization
It covers 18 to 105 mm, which Sony gives as 27-158 mm equivalent. An equivalent focal length is a calculation: it describes the field of view on a full-frame camera. The focal length engraved on the lens never changes. Optical SteadyShot steadies handheld shots.
Optics
Sony lists two ED and three aspherical elements and seven aperture blades. Close focus is modest, at 0.11×.
Against the Sigma 18-50mm
The Sigma is a stop brighter and smaller but shorter, with no stabilization. The Sony reaches further and is steadier for video.
What it does well, and what it gives up
Strengths
Constant f/4 across 18-105 mm
Power zoom for smooth video zooms
Optical stabilization
Sold by Amazon.com, 2,920 ratings at 4.6 stars
Compromises
About $748
Only 0.11× magnification up close
A 72 mm filter thread means larger filters
Specifications
Mount
Sony E, APS-C
Focal range
18-105 mm (27-158 mm equivalent, per Sony)
Aperture
f/4 at both ends; minimum f/22
Zoom
Power zoom
Stabilization
Optical SteadyShot (OSS)
Close focus
1.48 ft (0.45 m) wide, 3.12 ft (0.95 m) tele; 0.11× maximum
Filter
72 mm
Optics
Two ED and three aspherical elements; 7 blades
Amazon reference
B00ENZRQH8
EAN
4905524956672
What people ask before they commit
What is a power zoom?
The zoom is driven by a motor, controlled by a ring or the camera. That gives smooth, even zooms on video, which are hard to do by hand.
Does the aperture change when I zoom?
No. It stays at f/4 from 18 to 105 mm, so exposure holds steady while you zoom.
Which filter size does it take?
72 mm, per Sony.
Where this one places on its bench
At $748, it is the 3 cheapest of the 3 models in this category published here.
Cheapest on the bench$499
Median$569
Dearest on the bench$748
Our score
8.3/ 10
A long-standing video favorite for Sony APS-C, with a constant f/4 and power zoom. The Sigma is the choice for brighter, lighter stills work.
This one against the other photo equipment
photo equipment from the same category, at nearby prices. Only what all of them publish is shown: a column with holes compares nothing.
If price decides: Sigma 18-50mm F2.8 DC DN (E), at $499.
Highest Aperture in the table: this model (f/4 at both ends; minimum f/22).
This model holds the table’s highest figure for Aperture.
The price on Amazon.com
This model is listed on Amazon.com, at ≈ $748 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 2, 2026.
What use this one answers, among photo equipment
Sony APS-C video shooters who want smooth power zooms and steady exposure through the range.
Sources
Specifications: the manufacturer sheet for photo equipment and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Canon RF mount, APS-C · 18-150mm · f/3.5 at 18mm, f/6.3 at 150mm · optical IS up to 4.5 stops, 6.5 with IBIS bodies · lead-screw STM · Dynamic IS for video
Canon’s all-in-one zoom for its APS-C RF bodies, from 18 to 150 mm with stabilization rated up to 4.5 stops, sold by Amazon.com for about $569.
Best for: Owners of a Canon EOS R50, R10 or R7 who want one lens for travel.
4K at 30 fps, 1080p at 60 fps · 20 MP stills · 2-inch touch screen · EIS · housing rated to 131 ft (40 m) · two 1350 mAh batteries
A budget 4K action camera with a 2-inch touch screen, electronic stabilization, a dive housing rated to 131 feet and two batteries in the box, sold by AKASO for about $85.
Best for: A first action camera for bikes, beaches and snorkeling, bought by someone who wants everything in one box.
Each amount in a write-up is what the listing showed when that page was written. The figure next to the product is pulled in as you read, and it is the one that counts.