Originally posted by rparmar It is good that you have found a system that meets your needs. However I do wonder what exactly the advantages of Nikon are, perhaps because I have had no real time shooting Nikon and haven't seen anything compelling to make me try.
Sure, here are some pros for Nikon -- They may not apply to advantages against Pentax, for instance, but are pros nonetheless (for me at least):
1) Longer glass than Pentax. Pentax tops out at 300mm for first-party. They also don't offer a modern TC for sale (that I know of).
2) Faster FPS - It matters for me in some occasions.
3) Better AF performance, especially in lower light. My D300 also beats my former 40D in the area.
4) Their flash system is great and trumps the Canon's system, as they don't flash commander. I've not used commander with the K20D.
5) AF performance is very good.
6) Ergonomics - Pretty good. Not as good as the K20D, but better than Canon.
7) Zooms are outstanding in quality.
8) Their first-party RAW converter, while for-pay, is pretty freakin' good.
9) For the D300 - 100% VF is very nice. The D700, which I shot with for a week, is amazing, though expensive.
These are the pros. Cons? The list is at least as long as the pros, if not longer
Quote: But what do you mean? Nikon might get focus quicker but from what I've seen (from other people's shots) Pentax gets it more accurately. Is this not true in your experience?
My K20D, no matter what lens I used, had a hard time tracking my children while they played indoors. I didn't have these problems with either the 40D or the D300, though admittedly I had a tiny bit more trouble tracking with the Canon.
Or, we can take the example of picturing a stationary object. Pentax does the focus-check-focus-confirm. Nikon does focus, confirm. It's just faster and it's accurate.
Quote: Of course my needs are different: I spend at least half my time manual focusing, would never give up in-body SR and love my primes. It's good there is an excellent tool no matter what our photographic preferences are!
Yep, different stroke for different folks
The pentax is a great system, and if I had the money, I'd own it also
Quote: I am in the same boat, keeping an open mind and not bashing Nikon or anything; could faster AF has anything to do the focus assist SB that most Nikon models have? I thought that was a good idea for focus speed and accuracy... but then I don't think people would appreciate that (at least I don't) when the red-beam spot light up in their face.
Disregarding the AF-assist, it's still faster. Many times I shoot without flash...my D300 (and D90 and D700) focused much faster than my K20D. The only exception is when I had the Tamron 28-75mm F/2.8 with their internal motor on the D700 -- that lens is
slow to focus, which is a complaint of several of their lenses. Funny enough, their non-motor version focuses much quicker.
You can disabled the AF-assist on the flash, as well as the body's af assist lamp.
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Don't think I'm bashing Pentax or I love Nikon -- I really don't care either way, I just list my preferences. There are some things I really wish I had from all the systems, to be fair.
1) Canon's lens selection is unmatched. There are even converters to use for Nikon lenses. Their lenses are normally pretty good and cheaper than Nikon's.
2) Pentax has the in-body SR. THey also have the best control scheme, IMO. Their primes are unmatched and their weather sealing is very good.
3) Nikon's high ISO performance is great. Their AF performance is superior to Canon's, as Canon makes you go all the way up to the 1D series before you get their "good" AF system.
It's a shame there is no perfect system, but it's the truth. Like anything, one must choose what one values most, and can afford, then move from there.
To show that not all things are rosy in Nikon land, here is one problem: Try finding first-party 400mm glass, in any combination, under $2000.
1) They have the 80-400 zoom. It has VR (vibration reduction), but it's screw drive. Result? Extremely slow focusing.
2) You can get their 300mm f/4 AF-S and add a TC. Very nice glass, very sharp (I owned this). Problem? No VR. Enjoy spending about another $700 to get a good tripod/head/sidekick combo for this unless you're one of those robots that can hand-hold it without shake.
3) The end. Everything else is extraordinarily expensive (300mm f/2.8 has VR, 400mm F/2.8 has VR, but these are $5000 lenses). Nikon doesn't make a cheap 400mm f/5.6 prime either, in any flavor.
Canon?
100-400mm with USM and IS
400mm f/5.6 with USM (no IS)
300mm F/4 with USM/IS and their 1.4x TC.
For birders on a budget, Nikon poses serious problems when you're going for length. Do you get the 80-400 and try to work around the AF speed? (BIF very difficult). Do you get the 300+TC and lug around a tripod? Otherwise, you're forced to go third party, and they have their own problems!
Right now I'm testing out the Sigma 150-500 OS lens. It's build is nowhere close to Nikon's, but it's under $1000 and has OS.
I had the 300mm F/4 and the 1.7X Nikon TC - a $1500 combo. What I didn't have : the cash to get a good tripod setup. Plus, I really don't like carrying tripods everywhere.
Still, the AF performance, noise, and ergonomics have kept me in Nikon for now. I'm not much of a prime shooter, so Nikon's weakness in this area doesn't bother me.
I would seriously love to have the money for a K20D and some pancake primes, though.