Sigma 24 mm f/3,5 DG DN | Contemporary

Sans miroir · Février 18, 2021, 12:16:41

Test du Sigma 24 mm f/3.5 DG DN I (series) Contemporary par Marc ALHADEFF de Sony Alpa Blog:

" Un objectif indestructible, compact et léger pour un travail lourd..."

Sony Alpha Blog: Sigma 24mm F3.5 DG DN Contemporary

J'espère que Sigma continuera d'innover avec cette gamme I (series) Contemporary avec d'autres focal fixes et même des zooms.

topic de Mistral75: Sigma 28-70 mm f/2,8 DG DN I Contemporary soit en cours de création..."

Mistral75 · Avril 01, 2021, 14:45:21

Citation de: Sigma

It has improved the AF accuracy when it is used with the SIGMA fp L.

ekta4x5 · Mai 30, 2021, 10:06:43

Quelques images tests ici

TEST 24mm Sigma sur Alpha 6500 by N08/]jean pierre riviere, sur Flickr

Mistral75 · Juin 03, 2021, 11:51:04

Essai du Sigma 24 mm f/3,5 DG DN | Contemporary sur Sony Alpha 7R III par Arkadiusz Olech et Maciej Latałło pour LensTip.com :

Sigma C 24 mm f/3.5 DG DN review - LensTip.com

Points forts :

- construction mécanique solide et protégée contre les intempéries
- très bonne qualité d'image au centre
- qualité d'image raisonnable sur les bords du format APS-C
- qualité d'image décente sur les bords du format 24x36
- très bonne correction de l'aberration chromatique longitudinale
- aberration chromatique latérale légère
- pas de problème d'aberration sphérique
- faible distorsion qui, de plus, est mieux corrigée que dans le cas des concurrents directs
- astigmatisme très faible
- vignetage modéré sur capteur APS-C
- performances raisonnables en contre-jour
- autofocus rapide, silencieux et précis.

Point faible

- énorme vignetage sur capteur 24x36.

Citation de: Arkadiusz Olech et Maciej Latałło, LensTip.comI've always thought that slower primes should provide something more than zoom lenses with a similar focal range. In my opinion, if you decide to construct a 24mm prime it should have an aperture of at least f/2.5, so it can provide better possibilities than any of classic journalistic 24-70 mm f/2.8 devices. However if that prime is slower than f/2.8, it should be either very small or relatively cheap.

Meanwhile the Sigma C 24 mm f/3.5 DG DN tested here is, in my view, a tad too slow, a bit too big and also too expensive. I understand the idea behind this lens – it is supposed to complement the Sigma C 28-70 mm f/2.8 DG DN with an even wider angle. Still, in current situation instead of spending almost $550 on the Sigma the owners of Sony cameras might rather look at the cheaper Tamron or Samyang instruments. After all these lenses are faster, and the Tamron is additionally a bit sharper in the frame centre.

Still, I wouldn't call the Sigma a failure; my complaints are mostly a result of high expectations I usually have when dealing with such instruments. I am sure if you buy the Sigma you will be pleased with its performance – it's a lens without any serious flaws and with many important assets. In many categories, e.g. distortion, astigmatism, or resolution on the edge of full frame, it performed so well that it was able to defeat the more expensive Sony.

What's more, the Sigma's build quality is superior to that of its cheaper rivals manufactured by Tamron and Samyang. If you care about quality and solidity of the barrel you definitely should get interested in either the Sigma or the Sony and the Sigma is cheaper of these two, being able to compete on equal terms with the Sony in many categories.

As you see, in this class of equipment your choice is really rich, always a piece of good news for prospective customers. I only regret that none of the producers decided to offer aperture fastness at least a tad better than f/2.8.

stupido · Juin 03, 2021, 12:24:00

Citation de: Mistral75 le Juin 03, 2021, 11:51:04

Point faible

- énorme vignetage sur capteur 24x36.

C'est ce que je constate sur les optiques sigma que j'ai eu entre les mains

petur · Novembre 21, 2021, 18:36:43

Sur le dernier CI ont a le droit au test de cet objectif sur le Pana S1R... L'objectif dépasse à peine le A3 alors que le 24 Pana lui atteint le A2. Est-ce que la qualité de l'objectif n'est pas totalement au rendez-vous ou bien est-ce le capteur du S1R qui est trop exigent ?

remi56 · Novembre 24, 2021, 17:43:17

Bizarre bizarre!
Monté sur mon sigma fp-l (60 mp) le résultat est excellent; pas trop de vignettage, colorimétrie excellente et surtout un niveau de détails à couper le souffle.
Donc, le capteur est en cause à mon avis.

Mistral75 · Janvier 24, 2022, 18:02:04

Citation de: Sigma

It introduces compatibility with the "focus ring control" function of the camera, allowing either "linear" or "non-linear" focus movement to be selected when using MF.

SIGMA fp L , SIGMA fp, Panasonic Lumix S1, Lumix S1R, Lumix S1H, Lumix S5, Lumix BS1H, Leica SL2, SL2-S are supported.
SIGMA fp L will be supported by updating to firmware Ver.2.00 scheduled to be released on January 27, and SIGMA fp will be supported by updating to firmware which is scheduled to be released in April.
For more information on linear and non-linear focusing, please refer to our frequently asked questions.

It improves the phenomenon of an occasional, slightly increased shutter lag during AF shooting when used in combination with the Leica SL2.

Mistral75 · Janvier 27, 2023, 13:13:27

Citation de: Sigma

AF assist function during video recording is now supported.

*Only SONY camera models with AF assist function are supported.
The focus distance shown on the screen during manual focus has been optimized.