Sigma DP1 con sensore Foveon: prova su Dpreview.com

[mike1964]

http://www.dpreview.com/reviews/sigmadp1/

[marklevi]

beh, pur con dei crop deciamente + piccoli ha una resa decisamente tagliente... mi pare che resiste bene fino a iso 400. peccato un obiettivo f/4....

certo che il WB è da far ridere...


Conclusion - Pros

* Class leading detail in ISO 100 images, higher ISO performance better than most compact cameras
* Resolution is as good as it gets in compact cameras, very impressive for output size
* Good dynamic range (though limited usable headroom in raw files)
* Very small dimensions for the sensor size
* Good lens with only minimal distortion and very few signs of color fringing
* Attractive minimalist styling
* Good build quality
* Usable Manual Focus mode (it's not fantastic though)
* Comprehensive range of accessories available (but no conversion lenses)
* Powerful RAW converter software included (Sigma Photo Pro)
* Battery compartment can be opened when camera on tripod (depends on tripod head though)

Conclusion - Cons

* Desaturated and 'flat' JPEG output
* Some chroma noise even at base ISO, lots of it at higher sensitivities
* Unreliable White Balance (and poor color in low light)
* Generally very slow, very long read/write and processing times
* Unimpressive shutter lag
* Continuous mode only allows three shots per burst
* Very slow Auto-Focus
* Auto Focus gives up completely very quickly in low light (and there is no AF help light)
* 28mm fix focal length limits applications (but you know that before you buy)
* Lens prone to flare (using the optional lens hood helps)
* Red channel clipping
* Low resolution screen that is also prone to reflections and smearing
* Preview and playback view are both inaccurate (but in different ways)
* Low refresh rate results in slightly jerky live preview image
* Preview image turns monochrome in low light
* Longwinded menu structure, few external controls (plus almost redundant zoom buttons)
* Black writing on black buttons hardly readable
* Battery life not impressive, indicator not very precise
* Underpowered Flash, slightly unreliable flash exposure and slow flash recycling
* No live histogramm
* No highlight warning in review mode
* Image parameters cover only small spectrum
* Low quality video recording
* Gridlines cannot be diplayed in Manual Focus mode
* Quite heavy vignetting at F4
* You can't shoot RAW and JPEG (only one or the other)
* No macro mode
* Highest sensitivity only ISO 800

[LucaFuma]

Una bella delusione, direi...

Il jpeg della macchina fa pena! E dire che il foveon è (relativamente)famoso per la resa dei colori
Speriamo che un aggionamento firmware aggiusti almeno questo...

Comunque per la cifra che chiedono

Luca

[ander75it]

Ridicolo davvero

Caaaappero, fatela 35 f/2 e con elettronica decente, e allora sì che venderà, così è ridicola, una grande idea rovinata.

[cotess]

Un altro buco nell'acqua..........se ne vendono 500 han da essere contenti......pensare che quando vogliono, in Sigma tirano fuori cose innovative e di ottima qualità...........mah!?

[efke25]

[efke25]

[ubald™]

speriamo serva ad aprire la strada

[jacklamotta]

anche luminous-landscape ha fatto un'approfondita recensione

http://www.luminous-landscape.com/reviews/cameras/sigma-dp1.shtml

anche qui la dp1 non ne esce benissimo, anche se "The bottom line then is that the Sigma DP1 is able to produce very high quality images; possibly the highest from any current pocket-sized camera."

[ubald™]

http://www.rytterfalk.com/
Su questo sito il fotografo usa molto la dp1, la dp2 e le sigma.
Mette a disposizione ben 3 rawpack con cui giocare!

rawpack della dp2
http://www.rytterfalk.com/raw/dp2rawpack2.zip
http://www.rytterfalk.com/raw/dp2rawpack.zip

rawpack della dp1
http://www.rytterfalk.com/raw/dp1_magnus.zip
http://www.rytterfalk.com/raw/dp1rawpack.zip

Sigma photo pro, per sviluppare i raw:
http://www.sigma-dp.com/DP2/spp/setup.exe

Buon divertimento! A me pare avere una resa molto buona e un gran recupero nelle alte luci! Provate pure a salvare i jpeg a dimensione doppia, qualità ottima!