Effect of better ISO performance on lens choice

If the next release of Canon bodies have much higher ISO ranges, will this make us re-evaluate our lens choices ? If this becomes a reality soon it seems to me that the 24-105 F4 L becomes much more of a general purpose wedding lens? Any thoughts, Jono.

That's a huge IF, one I doubt will happen. The 5D is maybe a year newer than the 20D and the ISO performance is comparable.

The 24-105 F4L is a great wedding lens on a full frame body, on a crop body it's not wide enough, the 17-55 F2.8 IS is great.

The 24-105 IS f4 is already a great lens, and one I use something like 95% of the time for weddings on a crop body (20D). It can focus well in low light, and I don't find f4 or 24mm to be a limitation.

Rob

Nothing is enough, when 1600 iso looks like 100 iso does now, then we'll complain at the drop off in quality at 6400.
And f4.5 will never give the selective DoF of 2.8, so we'll always pay more for the faster lens.

It doesn't seem too long since my 2 ISOs at weddings were 160 and 400, I couldn't go higher because of the film grain (35mm) and the need for enlargements.

I agree. Until the ISO is high enough for me to take a photo in my closet with all of the lights out at f4, I'll always want faster glass

Ditto the dept of field comment. It is a very effective way to isolate your main subject in a photograph.

Also, by the time we are able to get ISO 100 quality at 1600 and more, new models will be available (and lenses don't get updated very often, so I don't expect this to become true for a while)