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The Sigma 15mm f/2.8 EX DG Diagonal Fisheye is a fisheye lens for FF and APS-C, manufactured from 2005. The focus is done by Lens AF motor (non-ultrasonic), it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 696 €;
23 users have given it an average vote of 9.1 out of 10.
MOUNT
This lens is available with the following mounts:
Canon EF: this lens is compatible with reflex fullframe and APS-C Canon EF.
Nikon F: this lens is compatible with reflex fullframe and APS-C Nikon.
Sony A-mount: this lens is compatible with reflex fullframe and APS-C Sony A-mount.
Pentax: this lens is compatible with reflex fullframe and APS-C Pentax.
Sigma SA: this lens is compatible with reflex and mirrorless fullframe and APS-C Sigma SA-mount.
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Pros: Luminoso e nitido anche a TA; Bello sfuocato a f/2.8 ed ottima iperfocale a f/8; 12.5 mm "rettilieno"; Piccolo e leggero ma robusto.
Cons: AF lenta (ma non e' un vero problema); Effetto fish eye (diagonale) poco pronunciato.
Opinion: Luminoso e nitido anche a TA, ma capace di una messa a fuoco a 15 cm, con prospettive nuove e molto interessanti, accompagnate da un ottimo sfuocato a f/2.8, oppure da nitidezza quasi infinita a f/16; MF sufficientemente "ferma" da lasciarlo in iperfocale (a f/8 va da 50 cm ad infinito).
Ha un effetto fish eye poco pronunciato ed e' quindi facile da "defishare" con un click in LR: Diventa cosi' un ottimo 12.5 mm equivalente nitido da lato a lato. Ho fatto un breve confronto con il 16-35 Canon @ 16 ed il 12 CV (montato su Sony A7). Senza correzione il 15 FE e' molto piu' ampio del 12 CV, mentre "defishato" e' leggermente piu' stretto (diciamo 12.5 circa). In ogni caso e' sempre molto piu' ampio del 16-35 a 16.
E' quindi un piccolo, leggero, nitido e robusto UWA, che in PP puo' diventare un 12.5 rettilineo, oppure rimanere fish eye (se usato bene per certe foto di paesaggio, l'effetto fishe eye non si nota) con una copertura che potrebbe essere quella di un 10 mm rettilineo (?). Ovviamente rimane anche un fishe eye da usare come tale, quando si vuole ottenere quel effetto.
CONCLUSIONE: Obiettivo con ottima IQ e molto versatile, che copre tantissime applicazioni e permette d'essere creativi con modalita molto diverse.
The following opinions have been automatically translated with Google Translate.
Pros:Light, outstanding for underwater photos, great AF
Cons:Sharpness and distortion
Opinion:It's a lens with great value for money that I use on my CANON 5D mk III. The AF responds very well to my needs and the chromatic rendering is really good. Excellent workmanship, pleasant to the touch and very small size. I use it purely for underwater photos where often the ambient photo is the master. It has obvious aberrations and distortions that in underwater photography are often tolerated while in the landscape and urban photo it has many limitations.
Pros:I find that it is well built, excellent performance even at TA good even the AF, tried in difficult situations defends well against the light with very little flare.
Cons:On my own account, I never use it very willingly.
Opinion:I bought this lens found used in a shop where I also tried an 8 mm Samyang and I must say that the choice fell immediately on the Sigma, no sign of wear only stains on the front lens that with a little liquid have disappeared, the yield I was amazed and the focus is always ready and fast with the Nikon D610 even if with a FISHEYE there is always a lot of depth of field and then easy operation. No problem of construction or other noise of "scrap" as with the 17/35 sigma, if you find it used I definitely recommend it.
Pros:Construction, weight, color, speed and precision AF, good resistance against the light, quality / price ratio, f / 2.8 very useful, Sharpness to TA
Cons:chromatic aberrations, edges TA at the center sharpness is always good
Opinion:Lens with high build quality, and a good value for money, I am using it on Nikon D810, and I must say I was impressed by the pictures that returns, with beautiful colors and natural, high definition, fast AF (although in most part of the situation is useless and you can safely use in MF) truly remarkable strength in the light, beautiful even the star loses a little something in the extreme edges especially TA, much better from f / 5.6, light and just the right size. They often have little at all apertures chromatic aberrations, especially in backlight on all fixable PP. Definitely recommend buying this Fisheye
Cons:Focus uncertain. Price not low, considering surrender.
Opinion:The opening of the box shows a perspective well done, with a front cover well done. The plastics are precise and communicate an impression of robustness. RNLA test was made with a Nikon D600. rnL'immagine has a good yield of neutral color with contrast elevato.rnFatti the very first shots I have to say I was expecting something more from sharpening but you probably are that I expect too much. The edges of the images are soft but improved enough stopping down to f8 are more or less as the center. RNLA autofocus is pretty useless, it would be recommended to be used in hyperfocal. The image is in focus so that the lens focuses on random 1 m to infinity at will, and the results are completely equivalent, especially if it is closed a little 'diaframma.rnProbabilmente is a problem with the product category, the sharpness is not that of a 50 or a good wide-angle, do not expect pictures cut with the laser. rnIl price is not really popolare.rnrn
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The following opinions have been automatically translated with Google Translate.
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