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Sony DSC-R1: Going After SLRs

Forum Tom's Guide : Article Discussions - Sony DSC-R1: Going After SLRs

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thiggins   03-15-2006 at 03:50:25 PM

Sony's DSC-R1 looks like an SLR but uses a fixed lens and electronic viewfinder, and removes some of the depth of field and other problems common with these cameras. Should you rush out to buy one?

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thiggins   03-15-2006 at 03:54:56 PM
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I'm posting this for a reader:

Quote :

The maximum aperture of f/2.8 in wide-angle position is very satisfactory, but it's only f/4.8 at the telephoto end, which is obviously less attractive. Here again, you see a consequence of the use of a large sensor - you'd need an enormous front element to maintain the same brightness at long focal lengths. In the world of SLRs, zooms with a constant f/2.8 maximum aperture usually don't go beyond 80 mm equivalent, and they can cost more than a whole Sony R1...


This statement is not entirely correct.

There is a wide range of zoom lenses that keep a constant f2.8 aperture. I'm actually selling one on Ebay right now, it is a Nikon AF-mount Sigma 70-210 APO, and it keeps it's f2.8 aperture throughout the zoom range. The current version of that lens is a 70-200 f2.8 and it retails for about $700.00US. The Nikon 80-200 f2.8 version is more expensive, with prices around $900 which is about the same as the Sony's street price.

Just wanted to make sure you were aware of this.
Thanks for the great review!

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