Found this:
Make sure you know everything before you buy. I think the Nikon would be a better choice, as this product is superior technology than the Canon D40.
[FONT=Arial, Helvetica, sans-serif][SIZE=+2]Minor D300 Blunders
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[FONT=Arial, Helvetica, sans-serif]Ken Rockwell
The only blunders of the D300 are merely trivial annoyances. The hackers haven't discovered any vast-conspiracy-style flaws like the banding of the D200 or the blinking green lights of death of the D70. (Nikon fixed all those under warranty.) [/FONT]
[FONT=Arial, Helvetica, sans-serif]1.) Auto ISO is still partially defective in manual exposure mode. It doesn't automatically deactivate when you go to manual exposure! You have to go to the menus to turn it off in manual exposure, otherwise the D300 tries its best to screw with your manual exposures. The D300 needs an additional menu option labeled "Deactivate Auto ISO during Manual Exposure?"[/FONT]
[FONT=Arial, Helvetica, sans-serif]2.) Continuous advance modes do not work with the built-in flash. That's right, every D300 is defective by design such that you only get one shot in the Cl or Ch modes with built-in flash! [/FONT]
[FONT=Arial, Helvetica, sans-serif]I didn't believe this when I read it on page 175 of my USA manual, but I kid you not: I only get one shot in C advance modes with built-in flash. It works OK with an SB-400, SB-600 or SB-800. A nice touch which doesn't quite make up for the built-in flash fiasco is that the in-finder bar graph now shows by how much the ambient light is underexposed when you get darker than the slowest flash sync speed. [/FONT]
[FONT=Arial, Helvetica, sans-serif]Nikon probably did this to prevent pros from melting the pop-up flash from overuse, but Nikon should have fortified the circuitry, not locked us out from using it. [/FONT]
[FONT=Arial, Helvetica, sans-serif]3.) The Fn button can only be programmed to do half of what it does on the D200. Specifically, on my D200 I have it set for flash exposure lock and hold, and to allow me to enter the focal length and speed of manual focus lenses for matrix metering. On the D300, I only can get one of those functions and have to trudge through menus to get the other function. [/FONT]
[FONT=Arial, Helvetica, sans-serif]4.) Manual lens data now only can be entered though deep menus. Once entered (only 9 lenses maximum, and each setting on a zoom takes one memory) you might be able to select among them with the Fn button, but forget easy, instant direct adjustment as you change lenses as you can on the D200. The D300 is similar to the
F6 (10 memories), but the F6 makes better use of the Fn button.[/FONT]
[FONT=Arial, Helvetica, sans-serif]5.) Custom function e4, modeling flash, is still set ON by default. This can cause blindness since it fires off a long, unexpected burst of flash when you hit the depth-of-field button. The first thing I did on my D300 after I cranked the saturation all the way up was to set e4 to OFF. (page 298, USA manual.) [/FONT]
[FONT=Arial, Helvetica, sans-serif]6.) I'm really reaching for this one, but the AF sensor indicator on the top LCD always shows the center sensor or group, regardless of which are actually selected. Press the "info" button and it displays correctly on the rear LCD. [/FONT]
[FONT=Arial, Helvetica, sans-serif]7.) You know the D300 is an amateur camera because the annoying moron BEEP is ON by default. In the professional D3, the annoy-everyone beep is off by default.
http://www.kenrockwell.com/nikon/d300.htm
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