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Category: Sigma

  • Sigma Photo Pro up to SD15

    Sigma just delivered the updated version of its photo edition software Photo Pro. The major changes are: Compatibility with 64-bit Windows (important for all photographers who moved to 64-bit Seven because of the lifted memory constraints); Compatibility with the new Sigma SD15 D-SLR camera It is immediately available for download: Click here to download the…

  • Sigma SD15: Too late, too expensive?

    Sigma announced that the Digital SLR first presented in 2008, Sigma SD15, will become available on 25 June 2010. Up to this point, it just looked like Sigma was fighting to close the time gap. But there are plenty of comments on the web about the prices that have been associated to this announcement: Europe:…

  • Sigma SD15 coming… slowly

    We heard already about the successor to the Sigma SD14, under the name of Sigma SD15, in 2008. Then, nothing or near to nothing. But here comes Sigma again with a new announcement about this camera. We will have to see if this will bring Sigma back in the light (the company was already considered…

  • A fish-eye lens at rock-bottom price

    When you use an expensive SLR camera you are often tempted to purchase a specialty lens like a ultra-wide angle (fish eye) lens. But, apart from the rare occasions when you really need it, it’s too expensive for you and me. Why not build it yourself? Instructables does the demonstration with a Nikon D90, but…

  • Focal length and photo lenses

    Tamron rewrote its web site. This was the occasion to move the Lens Comparison Tool but it is still useful to compare a 400mm with a 500mm (or a 35mm with a 50mm). But you can also find a similar tool at Olympus (and it takes into account the specificities of 4/3 sensor format, of…

  • Monster zoom in test

    Juza has tested the biggest Sigma tele-zoom lens: Sigma 200-500mm F2.8 EX DG. If it seems to be quite good, it is both horrendously expensive and nearly impossible to lift:

  • All lens tests are wrong

    I recommend reading a nice little post titled “All lens tests are wrong” that concludes that the only good test for a lens is to use it during a full year. Not wrong, but I still recommend to also check my list of web sites with photo lens reviews.

  • Infrared on EOS 450D

    So, you wanted to do some Infrared (IR) photo with your Canon EOS 450D/Rebel XSi? Just have a look at the IR tests done by Wayne J. Cosshall. By the way, traditionnally, since the Foveon technology of sensors does not use infrared filters, the Sigma dSLR cameras are very good candidates for IR photo.

  • Focal Length Comparison

    Thanks to Tamron, it is possible to easily compare photo lenses of different focal length and their effect on the size of an image. Tamron focal length comparison