Looking for answers, Geez I can't spell, anyway...
I'm sure this kind of thing gets asked all the time, but I could use some advise from the wise folks on here.
In 2006 I bought a EOS 10D and have used it on and off for the last 4 years. It was a huge jump in quality from the Kodak DCS 520 that I had been using. I was recently approached with the offer of teaching a digital photography class at my school and that has got me back into photography full bore. I recently did a bunch of portraits and it reminded me how much I liked the portrait grip on my old DCS, so purchased a 1d mk i on ebay for a very low price without really thinking about it, but I'm thinking of selling my bodies and getting something newer. I'm interested in all sorts of photography, studio, macro, landscape, wildlife, and I especially enjoy long exposures at night.
I don't really feel like the 10D is holding me back in terms of image quality, but I've found the autofocus does too much searching back and forth and doesn't always find its mark, and the delay in starting up is really annoying. I don't use the 1600 or 3200 iso much, but when I have to it works OK.
I like using the 1d a lot, I like the size and weight, and also the portrait grip. I love the film speed readout on the LCD. General operation is so much smoother then the 10D, autofocus is amazing. The larger frame sensor is closer to my old film days. Image quality seems to be about as good as my 10D, but I haven't done long exposures yet. Seems like when I'm using this camera I take things more seriously, sounds kind of dumb, but I leave it in manual and plan my shots better then I ever did with the 10D. The only issue is megapixels.
Specific questions, In landscape I feel like I have a lack of sharpness with both cameras, is this a resolution issue, or technique, or maybe lenses, usually a Tokina 19-35? I've always been pretty impressed with the s/n ratio in my long exposures at night with the 10D, and I guess its only gotten better?
I'm thinking of getting a 1ds mk i, but thats just about the limit of my spending. I could get a 40D? I could invest in some better lenses, or I could just keep shooting what I have and be happy.
Any suggestions appreciated.