On this page
Quick specs
| Focal lengths | 35mm, 50mm, 75mm |
|---|---|
| Max aperture | T2.9 |
| Squeeze ratio | 1.6x |
| Sensor coverage | Full frame |
| Weight (E mount) | 35mm: 390g, 50mm: 455g, 75mm: 465g |
| Length (E mount) | 35mm: 100mm, 50mm: 109mm, 75mm: 112mm |
| Filter thread | 58mm (35mm), 62mm (50mm and 75mm) |
| Focus ring rotation | 120 degrees |
How we researched
This review is based on SIRUI Saturn 1.6x Full-Frame Carbon Fiber Anamorphic Lens's official product page, its published specifications and pricing, and a comparison with leading alternatives in tech & gadgets. We have not used this product ourselves; scores reflect how it compares on paper.What the SIRUI Saturn is
The Saturn series is a set of full-frame anamorphic prime lenses from SIRUI, offered in 35mm, 50mm and 75mm, each at T2.9 with a 1.6x squeeze. SIRUI launched the 35mm first and added the 50mm and 75mm to round out the set.
Anamorphic lenses squeeze a wider field of view onto the sensor, which you then stretch back out in editing. SIRUI says a 3:2 sensor desqueezes to a 2.4:1 frame and a 16:9 sensor to 2.8:1, without cropping.
You can buy a single lens, a 50mm plus 75mm pair, or the full three-lens set, in E, RF, X, Z, L or DL mount.
Key features
The headline is weight. SIRUI uses a carbon fiber front barrel and a molded aspherical element in each lens, and says all three come in under 500g. The listed E-mount weights are 390g, 455g and 465g.
You choose a flare style when ordering. SIRUI describes the classic blue flare as suited to a cool, sci-fi look, while the neutral flare takes on the color of the light source for commercial and warmer work.
For rigs, SIRUI says the lenses share matching color tones and identical gear positions, so swapping lenses on a follow focus or gimbal should require less re-setup. The focus ring turns 120 degrees.
SIRUI also notes the lenses render oval bokeh with a sharp center and some edge distortion, which is typical of the anamorphic look rather than a defect.
Price and value
The store lists the 35mm single lens at $499 on sale, down from a $1,299 list price, with most variants marked around 61 to 62 percent off. Pairs and the three-lens set are priced separately.
At that sale price, a full-frame anamorphic prime is relatively affordable for the category. Sale pricing can change, so check the current price before deciding.
SIRUI offers free replacement within three years for defects not caused by the user. The three-lens set includes a safety case and adapter ring, while the single lens comes with a pouch.
Who it suits and who it does not
The Saturn makes most sense for solo shooters and small crews using mirrorless cameras on gimbals, drones or handheld rigs. SIRUI specifically mentions handheld, drone, gimbal and DJI Ronin 4D use.
The page does not mention autofocus for this series, and SIRUI promotes a separate autofocus anamorphic on the same store. If you shoot run-and-gun without a focus puller, that matters.
It is a weaker fit if you need fast apertures for dark venues, want the stronger 2x squeeze, or work in PL-mount cine setups.
Alternatives to consider
SIRUI's own Venus 1.6x full-frame series is a common comparison and covers a broader focal range in a heavier build.
For a stronger oval bokeh and a more traditional anamorphic look, DZOFilm's Pavo 2x lenses are a popular step up in price and size.
If you shoot Super 35 or APS-C and want something very compact, the Laowa Nanomorph 1.5x series is worth a look.
How it scored
Alternatives
| Product | Best for | |
|---|---|---|
| SIRUI Saturn 1.6x Full-Frame Carbon Fiber Anamorphic LensThis review | Mirrorless video shooters who want a lightweight, matched full-frame anamorphic set for gimbal, drone or handheld work. | Check price |
| SIRUI Venus 1.6x Full-Frame Anamorphic | More focal lengths, same squeeze | |
| DZOFilm Pavo 2x Anamorphic | Stronger 2x anamorphic look | |
| Laowa Nanomorph 1.5x | Compact Super 35 rigs |
FAQ
Is the SIRUI Saturn anamorphic lens autofocus?
The product page does not mention autofocus for the Saturn series and lists a focus ring with 120 degrees of rotation. SIRUI sells a separate autofocus anamorphic lens, so check that product if AF is a must.
What aspect ratio do you get with a 1.6x anamorphic lens?
SIRUI says a 3:2 sensor desqueezes to about 2.4:1 and a 16:9 sensor to about 2.8:1. That gives a wide cinema-style frame without cropping, according to the brand.
Which camera mounts does the SIRUI Saturn come in?
The store lists six mount options: Sony E, Canon RF, Fujifilm X, Nikon Z, L and DL. Pick the mount that matches your camera at checkout, since lengths and weights are quoted for the E-mount version.
Should I choose blue or neutral flares?
SIRUI describes blue flares as giving a cool, sci-fi look, and neutral flares as shifting color with the light source for commercial and warmer scenes. Blue is the more stylized option, while neutral is more flexible across projects.
Can the SIRUI Saturn be used on a gimbal?
SIRUI says each lens weighs under 500g and the set shares identical gear positions and similar weights, which is meant to ease gimbal and follow-focus use. Still confirm your gimbal's payload and balance range with your camera body.
Final verdict
At its current sale price, the SIRUI Saturn is a sensible way into full-frame anamorphic shooting for mirrorless creators who value light weight and a matched set. Buy it if you can work with T2.9 and manual focusing. If you need autofocus or a 2x squeeze, look elsewhere, and compare against the newer Saturn V2 before ordering.
