Hi,
A very interesting thread, I just thought it would be useful to contribute a little.
I think Nikon is positioning these two cameras at slightly different markets. So there are some differences in features between these two. In other words, you pay a bit more for a few extra features. These features definitely comes at a price.
My friend and I recently have the same discussion. I did some reading and came up with the following points:
- FPS: D300 is 6fps (8fps with grip), D90 4.5 fps (anyone know if there is a boost with grip?)
- A/D Converter: D300 uses 14 bit, D90 uses 12 bit
- AF Point: D300 has 51 max (15 cross type can be configured to be 11 as well), D90 has 11
- Metering system: D300 uses the 3500DX (1005 bit), D90 uses 1000 (450 bit)
- Viewfinder: D300 has 100% coverage, D90 has 96%
- Flash Sync: D300 has max 1/320 (with reduced GN), D90 is maxed at 1/200 (What the @#@ is reduced GN?
)
- Shutter Speed: D300 is maxed at 1/8000, D90 is maxed at 1/4000
- Backeting: D300 has up to 9 frames, D90 is maxed at 3 frame
- Shutter: D300 is 150k certified, D90 is 100k certified
- Movie: D90 has movie mode (we all know that), D300 ...can take still pictures (obviously)
- D300 has better weather sealing than D90
There are more at Ken Rockwell's, as we all know
http://www.kenrockwell.com/nikon/d90.htm.
He basically points out many advantages of D90 over D300. As you may have noticed, I actually highlighted more of D300's strengths over D90. I just wanted find out for myself what is the price premium of D300 actually gives the consumer.
If someone reads the specs and start to wonder, why do I need 6/8fps instead of 4.5 or what the fish is a cross type AF point or what does bracketing do? then he/she is probably better off with the cheaper option.
Lastly, as mentioned by many contributors to this thread, the feel of the camera, the UI and familiarity is very important as well. However, is the few shots taken at a display booth, with an impatient sales person staring at you, enough for you to judge? Why not bring the cheapest one back and try? If it is good enough, then great. If not, this is why the second hand resale forum at clubsnap is so popular