Excerpt: The Sigma SD10 digital SLR ($2,000 street) is the second camera to use the innovative Foveon X3 CMOS image sensor (the first was the Sigma SD9 ). The SD10 employs a second-generation sensor that offers improved low-light sensitivity and lower image noise than the previous model. On the outside, the SD10 is virtually identical to the SD9. But thanks to the new sensor, the SD10 operates at ISO speeds up to 1,600 (compared with 400 for the SD9).
Conclusion: Anyone with experience of the SD9 will see a noticeable improvement from the SD10. Both Sigma and Foveon have clearly spent quite a lot of time fixing some of the SD9's shortcomings and adding other improvements which advance the overall package noticeably. This has come about by a combination of changes to the camera and also the image processing in the new Photo Pro 2.0.
Pros: 'Single pixel resolution', pixel for pixel much better than Bayer, Resolution of enlarged images virtually indistinguishable from six megapixel Bayer D-SLR, Relatively good tonal balance although default curve can be a little contrasty, Color accurate, improved color response compared to the SD9, especially green and blue, Improved ISO range, low noise at higher sensitivities at the expense of color accuracy, Very good automatic white balance, preprogrammed WB setting...
Cons: No in-camera JPEG, storage implications of shooting RAW, Very disappointing long exposure / night performance, Gradual hue shift at higher sensitivities, softer images from ISO 200 upwards, Heavier and bulkier than some of the competition (although never feels too big), Not as feature rich as other digital SLR's, Sigma QC should ensure no dust on sensor from factory (we had none, others have had), Continuous shooting rate limited to 2 frames per second at Hi resolutio...
Excerpt: The Sigma
SD10 ($1689) is one of only two cameras to use the Foveon
X3 Direct Imager Sensor. The other is the Sigma SD9, which
has been replaced by the SD10. Soon, a new Polaroid model will
arrive with a lower resolution X3 sensor.
Pros: Stunning image quality, Robust performance, FireWire and USB ports, Uses AA batteries (instead of lithium-ion), Easy to use, All the benefits of a D-SLR: lenses, flashes, and full manual controls, Excellent Photo Pro software
Cons: Poor low light focusing without external flash, Dust seems to be a problem, Some of Sigma's lenses are not so great, All images must be post-processed (this may be a good thing, depending on your point of view), Above average noise at high ISOs, Bulky
Excerpt: Go to Page Two Sigma SD10 Specifications Camera type Interchangeable Lens SLR Type Digital Camera Storage media CompactFlash (CF) (Type I/II), MicroDrive Usable lenses Sigma SA Mount Angle of view 1.7x the focal length of lens used on 35mm SLR camera. Image sensor FOVEON X3 (CMOS) Pro 10M Size: 13.8 x 20.7mm Total pixels: 3.54 Megapixels x3 Effective: 3.43 Megapixels x3 Aspect ratio 3:2 Image recording format Lossless compression RAW data Resolution HI: 2268x1512 x 3...
Summary: The Sigma only gets a three-star rating because it only produces RAW files, and three megapixel files at that. It is capable of surprising results but only if you put the time in after taking the shot with image optimising, resampling and sharpening techniques (you get terrific results with Genuine Fractals, by the way). The image quality is surprisingly good. A lot of post processing is needed, but it captures great skin tones.
Excerpt: Despite its position as one of the lowest-cost digital SLRs on the market, the Sigma SD10 has some of the most innovative technology. Together with its SD9 predecessor, released in 2002 but still available, these are the only reasonably high-resolution users of the Foveon X3 sensor – although Polaroid offers a 2mp version on a consumer camera.
Excerpt: 10 MPIXEL, questo dato per qualche addetto ai lavori, può anche essere considerato virtuale, in quanto i pixel fisicamente allocati sul sensore CMOS X3 che equipaggia la Sigma SD10 , sono 2268 x 1512. Ma il dato di fatto oggettivo e dimostrato da prove sul campo, è che i sensori immagine Foveon X3 che equipaggiano Sigma SD10 , sono gli unici ad avere la capacità di catturare SU OGNI SINGOLO PIXEL, le tre componenti RGB della luce contemporaneamente.
Excerpt: Il detto dice "a ciascuno il proprio mestiere" e questo potrebbe applicarsi alla Sigma e alla sua SD10, su cui tanto si è scritto. Un sensore rivoluzionario firmato Foveon fu il primo che fece sì che il mondo si accorgesse di questa macchina, erede della SD9. Un sensore che, con un design da tre strati, è in grado di dare maggiore definizione e particolare dei CCD o CMOS convenzionali.
Pros: assenza di moirè nelle riprese, baionetta metallica, un sottile vetro di protezione del sensore, corpo solido....
Cons: qualità d'immagine che potrebbe essere migliorata, memorizza solo in formato RAW, display di pessima qualità, cattiva ergonomia...