Tamron 28-75 mm f/2,8 Di III RXD

[Lynn]

À part le Tamron 28-75mm jai deux autres objectifs Sony 28mm et 50mm. Fais une photo avec chaque objectif 28mm et 50mm à f2.8, la partie en haut à gauche de Tamron est un peu moins nette, ils vont disparaitre à f4,mais en pratique je vois pas la différente.Pour le voyage,je pense que c'est un objectif idéal: petit.léger et surtout pas trop cher. Lynn.

[Mistral75]

Mise à jour en version 2 du logiciel embarqué du Tamron 28-75 mm f/2,8 Di III RXD (modèle A036) :

Notice about Firmware Update for Tamron 28-75mm F/2.8 Di III RXD (Model A036) | News | Tamron Co., Ltd.

Les modifications apportées :

This update improves the following issues in video shooting mode:

• Autofocusing operation and loss of focus
   
• Flicker on peripheral parts of the image when zooming

Source : http://www.tamron.jp/en/support/popup/a036.html#SO

Mode opératoire : http://www.tamron.jp/en/support/a036_update.html (la mise à jour se fait depuis le boîtier)

Page d'accès aux liens de téléchargement : http://www.tamron.jp/en/support/a036_firmware.html

[stringway]

À part le Tamron 28-75mm jai deux autres objectifs Sony 28mm et 50mm. Fais une photo avec chaque objectif 28mm et 50mm à f2.8, la partie en haut à gauche de Tamron est un peu moins nette, ils vont disparaitre à f4,mais en pratique je vois pas la différente.Pour le voyage,je pense que c'est un objectif idéal: petit.léger et surtout pas trop cher. Lynn.

Merci de ce premier retour. 

[Lionel]

Bientôt en monture Nikon Z ?

[stringway]

Bientôt en monture Nikon Z ?

Peut-être, mais probablement pas en monture Canon EOS R car ils vont proposer leur 28-70 f/2 de 1,4kg et un peu plus de 3000€... qui rentrera en concurrence directe pour ceux qui auront de gros biscoteaux et un compte en banque bien garni !  Peut-être même qu'il se paiera le luxe d'offrir de plus belles images, mais il faudra attendre pour voir. 

[Mistral75]

A moitié présent à la Photokina.

https://dc.watch.impress.co.jp/docs/news/1145502.html

[Mistral75]

Essai du Tamron 28-75 mm f/2,8 Di III RXD sur Sony Alpha 7R III par Jean-Marie Sépulchre (JMS sur ce forum) pour Le Monde de la Photo :

Tamron 28-75 mm f/2,8 Di III RXD [BONUS MDLP N°108] - Le Monde de la Photo (7 pages)

A noter que les résultats des mesures sur mires sont donnés pour un tirage de 40 x 60 cm, c'est-à-dire correspondant à une définition de 24 Mpixels et non aux 42 Mpixels du capteur de l'Alpha 7R III. L'objectif souffre en effet d'une courbure de champ prononcée à courte distance ; celle-ci s'estompe à grande distance.

[SJean]

Il semble se confirmer que les zooms trans-standards sont des compromis difficiles à réaliser pour les capteurs très pixelisés et JMS a eu de l'indulgence en affichant les tests du A7R3 ramenés à 24 Mpix . Opticallimits , qui vient de tester les 24-70/2.8 de Sigma et de Tamron en tire la même conclusion . Selon leur destination , bien sûr , on peut  , ou non , se satisfaire de ces compromis .

[thierry h]

voilà , il est dans ma besace , premières impressions, piqué, rapide, excellent en basse lumière avec le sony A7 II

[Mistral75]

Essai du Tamron FE 28-75 f/2,8 di III XRD sur Sony Alpha 7 III par Mark Goldstein pour Photography Blog :

Tamron 28-75mm F2.8 Di III RXD Review | Photography Blog (8 pages)

The new Tamron 28-75mm F2.8 Di III RXD isn't the best standard zoom lens for Sony full-frame mirrorless cameras in terms of outright image quality, performance and build quality, but it is currently the best lens in terms of its cost to performance ratio, offering a lot of bang for not a lot of buck.

This is a versatile walk-around lens with a fast maximum aperture that consistently delivers great images with lovely bokeh when shooting wide open. In the centre of the image it's bitingly sharp throughout most of the zoom and aperture range, only falling off a little at 75mm. Performance isn't as good at the edges of the frame, though, requiring you to stop down to f/5.6-f/8 to get the best sharpness.

The 28-75mm F2.8 Di III RXD produces very nice bokeh effects thanks to the 9-blade iris diaphragm, although there's some obvious vignetting and barrel distortion at 24mm, even when in-camera corrections are turned on. Overall, though, other than the lack of edge sharpness at f/2.8-f/4, there's not too much to complain about in the image quality department.

Build quality is good rather than excellent. It's not quite at the same level as the metal construction of Tamron's SP lenses or the better Sony zooms, but the polycarbonate construction does at least ensure that the 28-75mm F2.8 Di III RXD is very light.

The new auto-focusing system proved to be reliably quick and accurate on the Sony A7 III that we tested the lens with, for both still and moving subjects, and it's also fully compatible with all of Sony's focusing modes. This lens doesn't have a built-in optical image stabilisation system, instead relying on Sony's in-camera system, which will be fine for everyone except those who own a first generation Alpha camera (which don't have built-in OIS).

The official retail price of the Tamron 28-75mm F2.8 Di III RXD is certainly very attractive and one of the main reasons why it has garnered such attention, with pre-sales exceeding Tamron's expectations. It represents a major step-up from the cheap but not so cheerful FE 28-70mm f/3.5-5.6 OSS, and we'd argue it's also a better bet than the similarly priced FE 24-70mm f/4 ZA OSS Vario-Tessar Carl Zeiss T* lens. There are two Sony lenses that out-perform Tamron's new lens - the FE 24-105mm f/4 G OSS and the FE 24-70mm F2.8 GM - but both are a lot more expensive, with the first offering a slower maximum aperture and the second being much bigger and heavier.

In summary, there's a lot to like about the Tamron 28-75mm F2.8 Di III RXD and not a lot to loathe. If you're in the market for your first standard zoom lens (and a lot of new A7 III owners are) you should take a very serious look at the very impressive Tamron 28-75mm F2.8 Di III RXD.

[Mistral75]

Mise à jour en version 3 du logiciel embarqué du Tamron 28-75 mm f/2,8 Di III RXD (modèle A036) :

Les modifications apportées :

This update improves the stability of control signal communication in continuous shooting for a long time.

Source : http://www.tamron.jp/en/support/popup/a036.html#SO

Mode opératoire : http://www.tamron.jp/en/support/a036_update.html (la mise à jour se fait depuis le boîtier)

Page d'accès aux liens de téléchargement : https://www.tamron.jp/en/support/a036_firmware.html

[Sebas_]

Merci Mistral, hâte de le voir sortir en monture R.

Par contre:

Leica propose lui aussi un mirrorless 24x36 (le SL) mais je ne vois pas Sigma proposer un objectif en monture Leica L : leurs univers sont trop éloignés.

Tu ne peux pas voir juste 100% des cas, ca nous rassure sur le fait que tu sois qu' un simple mortel!
Amicalement,
Seb

[Mistral75]

C'était un lapsus clavis : je voulais dire Tamron (cf. le sujet du fil), j'ai écrit Sigma.

[Mistral75]

Le Tamron 28-75 mm f/2,8 Di III RXD a reçu le Camera Grand Prix 2019 Editors Award.

Source: Camera Grand Prix 2019

[thierry h]

voici deux trois images faites avec la bête
Chinon en Jazz - 2

Chinon en Jazz - 3

Chinon en Jazz - 4

un superbe couple avec l’A7 II

[thierry h]

une autre petite
Cà va Jazzer 2019 - 1

[SJean]

Opticallimits vient , à son tour , de publier son test du 28-75/2.8 Di III RXD .

https://www.opticallimits.com/sonyalphaff/1064-tamron2875f28e

Quelques commentaires sur la disparité entre la partie centrale ( toujours très bonne ) et les bords et angles ( qui tardent à monter ) sont intéressants :

" Thus, unsurprisingly, it's no different with the Tamron 28-75mm f/2.8 Di III RXD. Let's start with the most positive aspect - the broader center performance. Tamron managed to provide a superb quality here which exceeds most other lenses that we have tested on Sony E-mount to date. That's regardless of the zoom setting. However, the glory ends when looking at the image borders/corners. At 28mm they are quite soft at f/2.8 but they recover when stopping down. The border quality is decent from f/5.6 whereas you better stop down to f/8-11 for good corner quality. At 35mm the border quality improves whereas the corners remain soso at wide-open aperture. The 50mm setting is the sweet spot with a quite homogeneous performance for a zoom lens at least. The quality of the outer region drops again at 75mm with rather weak results at f/2.8 and fairly good from f/5.6 onward. "

Et , pour finir : dans " competition "

 " The Sony 24-105mm f/4 G OSS (to the right) is somewhat more expensive and surprisingly good given its much bigger zoom range - and our usual recommendation. "

[Mistral75]

Essai du Tamron 28-75 mm f/2,8 Di III RXD sur Sony Alpha 7R II par Arkadiusz Olech et Maciej Latałło pour LensTip.com :

Tamron 28-75 mm f/2.8 Di III RXD review - LensTip.com

Points forts :

- fût solide et muni de joints
- excellente qualité d'image au centre
- qualité d'image appréciable sur les bords du format APS-C/DX
- pas de problèmes d'aberration chromatique longitudinale
- aberration chromatique latérale légère
- astigmatisme modéré
- faible vignettage sur capteur APS-C/DX
- excellentes performances en contre-jour
- autofocus silencieux et précis
- 5 ans de garantie
- bon rapport qualité-prix.

Points faibles :

- résolution trop faible sur les bords du format 24x36
- énorme vignettage en 24x36
- des problèmes notables de correction de la coma.

Despite a big difference in price when compared to the Tamron SP AF 28–75 mm f/2.8 XR Di LD Aspherical (IF) MACRO I think the Tamron 28–75 mm f/2.8 Di III RXD will be able to repeat the market success of that older lens designed for reflex cameras. It has very good optical properties – especially an excellent image quality in the frame centre and practically across the whole focal range. At the same time the new Tamron remains cheaper than products of Sony and Zeiss, offering a similar focal range. You can say even more: it is a dozen or so percent cheaper than the slower Vario-Tessar T* FE 24-70 mm f/4 ZA OSS.

The Sony company keep older models of their full frame mirrorless cameras on the market for a long time so their prices have been falling to levels acceptable for amateur photographers. Such amateurs might become interested in supplying their bodies with reasonably priced lenses. The Tamron 28–75 mm f/2.8 Di III RXD fits that scenario pretty well so I suppose it might be very successful and its owners – very happy with the results it provides.

[Mistral75]

Opticallimits vient , à son tour , de publier son test du 28-75/2.8 Di III RXD .

https://www.opticallimits.com/sonyalphaff/1064-tamron2875f28e

Quelques commentaires sur la disparité entre la partie centrale ( toujours très bonne ) et les bords et angles ( qui tardent à monter ) sont intéressants :

" Thus, unsurprisingly, it's no different with the Tamron 28-75mm f/2.8 Di III RXD. Let's start with the most positive aspect - the broader center performance. Tamron managed to provide a superb quality here which exceeds most other lenses that we have tested on Sony E-mount to date. That's regardless of the zoom setting. However, the glory ends when looking at the image borders/corners. At 28mm they are quite soft at f/2.8 but they recover when stopping down. The border quality is decent from f/5.6 whereas you better stop down to f/8-11 for good corner quality. At 35mm the border quality improves whereas the corners remain soso at wide-open aperture. The 50mm setting is the sweet spot with a quite homogeneous performance for a zoom lens at least. The quality of the outer region drops again at 75mm with rather weak results at f/2.8 and fairly good from f/5.6 onward. "

Et , pour finir : dans " competition "

 " The Sony 24-105mm f/4 G OSS (to the right) is somewhat more expensive and surprisingly good given its much bigger zoom range - and our usual recommendation. "

Commentaire introductif de Klaus sur le forum : "BUBBLES ;-)"

Qualité optique : 2,8/5
Qualité mécanique : 3,8/5
Rapport performances / prix : 4,2/5

It is easy to spot why the Tamron 28-75mm f/2.8 Di III RXD is so popular. There is, of course, the moderate price tag combined with the fast max. aperture which sets it apart from Sony offerings. Optically it is decent - for such a lens - albeit it comes with a couple of carefully placed compromises. At the wide-end of the zoom range, it is quite sharp across the image frame when stopped down to medium aperture settings whereas the center performance remains superb at 75mm which is where you'd typically use a large aperture setting anyway. Thus the mainstream settings offer quality where usually needed and you will probably agree that most of the provided sample images actually look very decent. That being said, technically there are also obvious weaknesses when using the lens on a high megapixel camera. The corner performance isn't all that hot at large-aperture settings and for a sharp result across the frame you should stop down to f/8 or f/11. While you can certainly achieve decent object isolation via a shallow depth-of-field, the quality of the bokeh can be quite rough in difficult scenes - when shooting at f/2.8 at least. As far as image distortions, vignetting and CAs are concerned, most users will rely on image auto-correction thus you can live happily ever after. If you look behind the scenes - thus into the unmodified RAW image - you can spot medium distortions at the extreme ends. Lateral CAs are fairly low at the image borders but intensify in the extreme corners. The vignetting is also high at 28mm f/2.8 and 75mm f/2.8 albeit this isn't unusual in this class.

The build quality is on a very decent consumer-grade level. We are not convinced that the smooth finish will stand the test of time without scratches but out-of-the-box it certainly looks good (albeit a bit long-ish). An annoyance is the tendency of the rubberized zoom ring to function as a dust-magnet in no time. The moisture-resistant desisn is certainly a plus. A highlight is the fast and silent RXD AF motor. Some users will surely also appreciate the close focus capabilities of the lens which is a classic value-add on many Tamron lenses.

If you can't or don't want to afford the Sony FE 24-70mm f/2.8 GM but still want an f/2.8 standard zoom lens, the Tamron is a good and light-weight option IF you can live with the rather moderate 28mm setting at the wide-end.

[Mistral75]

Capture One 13.1.0, qui vient d'être mis en ligne par Phase One, inclut un profil de correction du Tamron 28-75 mm f/2,8 Di III RXD.

[Mistral75]

Bientôt une version de deuxième génération :

https://www.chassimages.com/forum/index.php/topic,320688.0.html