Originally posted by FHPhotographer but I'm thinking of switching from Pentax to the D90 with the 18-105 VR kit lens.
And why, you might ask? Well, I broke the cardinal rule of the ignorant and clumsy by messing around inside the box and somehow managed to scratch the K100 focusing screen and bend the hell out of the screen frame and shim. Yeah, they can be fixed but I'm taking it as a sign from the photo gods to move on.
I'd really like to stay with Pentax for the build quality, the lenses, the built-in IS, and just the feel of the cameras. I'm using the Tamron 28-75 now and it's damn near the perfect zoom lens for what/how I shoot now, but someday I plan to add primes and nothing out there matches the Pentax lineup for quality plus IS.
That being said, however, the D90 has the active D-lighting that is very good for high contrast outdoor work, a longer range zoom, and a brilliant 3" high res screen, plus it's fast and top notch IR. Perhaps the K-7 is equal/superior, but it just costs too much right now; it would mean sticking with the Tamron zoom for the long run. And from what I read here and there it's having the usual sorting out problems of a new model.
Perhaps the K20 as the middle road plus maybe the 35 macro for about the same money? It is a quandry, a nice one to be in but frustrating, so any input would be much appreciated. Thanks,
Brian
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As a D90 (and K20D) owner, I'll give you a few quick
cons...
IMO, Active D-Lighting on the D90 is kinda... terrible. Contrast goes away, everything just looks washed out. In some cases, it can
sort of save an image, but shooting in raw and doing some PP will give you better results. Don't buy a D90 just for Active D-Lighting.
The 18-105 VR kit lens: VR is nice, and the lens is fairly sharp, but it doesn't match the Tamron 28-75, or Pentax 16-45 f/4 for that matter.
D90 in Matrix Metering is a Jeckyl/Hyde deal - wonderful exposure one shot, the next, blown highlights - Nikon chose to preserve shadow detail at the expense of highlights, it seems, but it just doesn't seem consistent. A weak point of the D80 and D90.
No SR in-body - you'll really notice it in low-light, slow SS shots at first - but then you'll get used to it.
No AF adjust (like the K20D has) - not a big deal if you're used to the K100D, but for K20D users like me, it's a bad deal. Any little FF/BF problem is insurmountable on the D90.
Pros:
Faster AF. Sigma HSM with AF-S on the D90 is blazing-fast, even though AF-C mode isn't much better than the K20D. Normal screwdrive lenses are faster also.
Better high-ISO performance. I shoot ISO 1250 without any reservations whatsoever, and ISO 2000 all the time. On the K20D, a lot of detail is preserved at these ISOs, and the noise doesn't look too bad... but the D90's NR is just near-perfect. I almost never do an NR in PP with the D90, and I shoot jpeg almost always.
Lenses. Nikon has some interesting options:
35 1.8G ($199 new, and very sharp wide-open.)
50 1.8D ($109 new, about as good as the FA 50 1.7)
85 1.8D ($400 new, pretty good)
105 f/2 DC, 135 f/2 DC, 200 f/2 VR - (incredible glass, but $$$$$)
180 f/2.8 AF ($350-650 used, stellar.)
300 f/4 AF (non AF-S) ($400 - $700 used, superb)
Then there are the 'pro' zooms, but I don't think they're quite worth it ($1700 for the 70-200 2.8 VR, $2400 for the brand new one, $1800 for 24-70 2,.8 VR, etc...)
Personally I feel that there's a lot of hype attached to the Nikon pro zooms.
Nothing like the limited primes, and also nothing like the DA 50-135 except the Sigma 50-150 2.8 - but that's not as good in close-focus.
Anyway, D90 is great, some Nikon lenses are great and good bargains, but the grass isn't completely green.