Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM

Last updated (13 July’10):
– Review by Lenstip

The Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM features 120-400mm at focal length with maximum aperture of f/4.5-5.6. The lens construction has 21 Elements in 15 Groups and has diagonal angle of view at 20.4 degrees. Closest focusing distance at 150 cm/59.1 in and has a filter size of 77mm. The Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM lens weighs 1750g/61.7oz and it measures 3.6 inches in diameter and 8 inches long.

Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM
Overall Rating: ★★★★☆ | Latest Price Info

Expert Reviews

Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Reviews

Lenstip reviews the Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM and writes;
” In terms of speed, it’s hard to complain here, as it’s not the worst. The mechanism goes through the entire scale in less than 1 second. With distortion, similarly to chromatic aberration, there are no problems at any focal length. Geometric distortions at the edge of the frame do rise with the focal length, but even at 400 mm they’re small.”
rating: N/A

SLRGear reviews the Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM and writes;
“Sigma has produced a nice telephoto zoom here, and the inclusion of optical image stabilization will be a welcome upgrade from its previous offerings in the similar range. This stabilization is necessary, as good image sharpness in the telephoto range is only obtained when stopped down to ƒ/8 or ƒ/11.”
Rating: ★★★★☆

Photoreview reviews the Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM and writes;
“Overall performance was very good for the review lens’s specifications and price tag and resolution was slightly higher than we obtained for the Sigma APO 150-500mm F5-6.3 DG OS HSM lens. Highest resolution was obtained between f/5.6 and f/13 for all the focal lengths we were able to test. Resolution declined steeply from f/18 onwards.”
Rating: ★★★★½

User Opinions

Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM User Reviews

Very Pleased! | Rating: ★★★★★
“I’ve had this lens for a little over a month now and absolutely love it! It is a very solid and high quality product. The image stabalization feature makes a difference, so don’t buy a cheaper lens without it unless you plan on taking pictures with a tripod.” – by K. Hoopes

excellent lens a bit heavy | Rating: ★★★★☆
“I went to tne Carnival in Rio de Janeiro and took pictures using this lens for nine hours. Fantastic pictures. My left arm and wrist got tired after about six hours becasue the lens is heavy. Also heavy to carry around when traveling. However the pictures are ecellent.” – by Steve Young

Best Telephoto Zoom Lens | Rating: ★★★★★
“This is better than Canon 100-400. And it is sharper also than 70-200 @200mm. F8 very sharp at any distance at any range. Very good results handhold. Go to Center spot auto focus by F8 and you’ll see. Fast and sharp. You must try it. Excellent lens. And very good price.” – by L. Varagian

Best bargain in this zoom range | Rating: ★★★★★
“The HSM focusing is quiet fast and not too noisy, but I though the OS system relatively slow compared to Canon IS. One thing to really note is that you MUST NOT use the OS if you have the lens on a tripod. Without some shake to compensate against the OS system freaks out and you can see the image jumping all over the place. I made this mistake and ruined some good pictures but that isn’t the lenses fault that was me.” – by I. Clements

Great lens on a Canon 50D | Rating: ★★★★★
“One of the major reasons I got the lens was to take candid, hand-held, action shots of boats and the people in them. My platform for taking the pictures would be a rolling, pitching boat. After a month of using the lens, I am well-satisfied with its abilities. I usually use ISO settings of 1000 or higher. Output is to a website photo gallery or print rarely larger than 8.5″ x 11″. Graininess has not been an issue with the Canon 50D.” – by RHN1070

Lens for all Seasons | Rating: ★★★★☆
“I have fallen in love w/it. It is the largest of 4 Sigma lenses for my Nikons (2-300’s, 1-200) and I bought it on a whim. WOW! Nice and crisp, can be handneld even by 66 year-old shooter! OS is not overly noisy, certainly not distracting and has given me the freedom from tri/mono-pods for daylight sports, F2.8 isn’t necessary in sunlight for me.” – by Woody Pollock

Sigma 120-400 f4.5 – f5.6 HSM Exceeded my expectations | Rating: ★★★★★
“I am happy to report that it is plenty sharp enough for my needs and I like the colors and contrast I am getting with this lens. I did adjust focus using the AF fine tune feature on the D700 to -15 and I am ready to go. If you want to see some photos taken with the Sigma 120-400 lens type bc1963 photos in your search engine and select my flickr photostream. “ – by Bob in USA

Great lens… great product @ the right price.. | Rating: ★★★★★
“picture is clear if I do my part ! I find it easier when I mount the lens on the monopod. I push the shutter speed right to 1200 and all pic came out good. lens is a bit heavy but managable. focusing is fast and I like the twist zoom over the Canon 100-400L. I have use both and could not fault this lens over the canon and of course the cost of the Sigma is like $700 cheaper too! I use it on my Canon 40D and picture is good!” – by Tiong Guan Chng

Great Purchase | Rating: ★★★★☆
“Haven’t taken alot of shots yet but those I have taken are pretty good. The OS takes a little getting used to and I seem to get better results when I manually focus but that may be something I am doing wrong as I haven’t practiced much since I got the lens. I have taken some really nice bird shots with nice sharpness. Not as big a lens as I expected and hand-holding in good light with the OS is fairly easy.” – by Rats56

my review of the Sigma 120-400mm zoom lens, | Rating: ★★★★☆
“The lens seems to be sturdy and very well built. I use it to photograph birds, mostly and the images are clear and sharp, certainly sharper than my old lens. Focusing is very quiet and fast. Best sharpness seems to be at f8, so be sure to use a tripod or a gunstock mount because of the slower shutter speed. “ – by R. Houser

More user opinions | Write your opinion

Features & Specifications

Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Specifications

The Sigma APO 120-400mm F4.5-5.6 DG telephoto zoom lens is an outstanding lens in this category, an excellent optical performer with Optical Stabilization and a high speed Hyper-Sonic Motor to help you shoot amazing photos. Three SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness throughout the entire zoom range. Rear focusing system corrects for fluctuation of aberration due to focusing.

Compatible with the Sigma APO Tele converters. Its reach relative to its size makes handheld photography easy to track moving subjects and it fits easily in most common camera bags for the ultimate convenience. Its close-up focusing ability makes it handy for shots of small objects such as flowers without having to change lenses. Outstanding photographs are always the outcome.

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