Linked by Nicholas Blachford on Thu 30th Apr 2009 17:05 UTC
I moved into the realm of digital SLR photography back in 2003 when when I got myself a Canon 10D. The 10D served me very well for 7 years and 14 000 pictures. Then I decided it was time for an upgrade so, I got myself a full frame 21 Megapixel monster, the EOS 5D MkII. It's quite an upgrade, it even does video. These are my impressions after having it for a few weeks.
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Member since:
2005-07-07
There's a limit to what you can achieve with sensor technology. You're essentially limited by the amount of light per area, and that's a reason why a current compact or bridge camera (like the Canon SX1) will give much worse high ISO performance than a DSLR from 5 years ago (like the Canon EOS 10D).
With a fast lens, you get great low light performance today. Compare a fast 50mm f1.4 lens with some mickey mouse kit lens. With such lenses, you're looking at around f5.6 at 50mm. This is a 4 stop difference, i.e. the f1.4 lens lets in 16 times more light. To put it in a different perspective, to get the same shutter speed as a f1.4 lens at ISO 100, the f5.6 lens requires ISO 1600.
If low light photography is important to you, a fast lens is a must.