Category: Pentax accessories & lenses
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Two new Weather-resistant lenses at Pentax
Really unusual announcement : Pentax, which already has a nice line of SLR photo cameras specially treated to be weather-resistant, and just introduced the Pentax K-7 as weather-resistant and cold-temperature-hardened, now offers two new weather-resistant zoom lenses. SMC PENTAX DA 18-55MM F3.5-5.6 AL WR Lens Mount: N/A Lens Construction: 11 elements in 8 groups Angle…
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Pentax joins megapixel truce
We had seen that Olympus thought stopping the race for pixels taking 12 mega-pixels as the maximum really needed by most photographers. But they had satyed more or less isolated… up to now. FotoMagazin, German monthly photo magazine, tells us the news in its lastest (April) issue: Pentax joins Olympus in the non-race. After Nikon…
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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.
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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
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Comparison of 80-200mm zooms
DPreview has a good comparison of 4 zoom lenses opening at f/2.8 for SLR cameras: Canon 70-200mm F2.8 L IS USM Nikon AF-S VR 70-200mm F2.8 G Sigma 70-200mm 1:2.8 EX DG Apo Macro HSM II Tamron 70-200mm 1:2.8 Di LD (IF) Macro Since they are one of the most coveted segment of the SLR…
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Web sites for lens reviews
It is often difficult to group lens reviews in order to compare/evaluate a little more than their mere physical characteristics (focal length, aperture/diaphragm, or even number of individual lenses). But how would you evaluate/review optical quality? When I see the really impressive differences between two lenses, I would be prepared to judge from their price,…