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Old Jan 26, 2007, 11:02 AM   #1
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I recently purchased a D50 kit with the 18-55 & 55-200 lenses. I have been doing lots of reading in the last couple of weeks, and have decided I would like to pick up a normal lens. I have been looking at the 50mm f/1.8 in particular. Now, money always being an issue, I have been watching eBay for a good deal. I have seen a lot of lenses listed, and the price range is just crazy. I have seen used 50mm f/1.8d listed for US$150, which is confusing considering when I look on Amazon.com I can purchase a new 50mm f/1.8d for US$109 + tax + shipping.

First question, why do used lenses seem to cost as much if not more than new lenses?

Second question, there are a lot of 50mm f/1.8 AF lenses listed on eBay. From what I have read in these forums and in the manual, it looks as though they should work fine with my D50. Of course when I look at the Nikon sitethey list a chart. How do I distinguish between a CPU and a Non-CPU lens? I know all D lensesdisplay the D after the f1.8, but what about the AF-S and AF-I and the G lenses? Do they have similar markings?

Here is an auction that I have been looking at:

Nikon 50mm f/1.8 Autofocus Nikkor (Japan) Lens

(image of the lens from the auction attached)

Which AF lens is it? Is it a CPU or Non-CPU lens? Does it support all functions excpet 3D metering as stated in the Nikon chart?

Any and all help appreciated!


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Old Jan 26, 2007, 11:24 AM   #2
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First off, "normal lens" is usually 45 to 50mm on 35mm format, because the D50 uses a sensor that's smaller, the 50mm is effectively 75mm.

The 50 F/1.8 that I bought is the current one, marked 1.8D and it cost me around $110. Some of the 50mm lenses are faster than 1.8. But some just cost more because it has been discontinued and are rare, whether they are optically better, I don't know.

Here's what I have:

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Old Jan 26, 2007, 12:06 PM   #3
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Pretty much all AF lenses, including AF-S and AF-I lenses, (except the ones that were made specifically for the F3) are CPU lenses and will work just fine on a D50.

The lens in question looks like an earlier AF version (looks like a Made in Japan version) and will be fine for your D50.

Some people might list the Japan-made version at a higher price than the current Made in China version.
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Old Jan 28, 2007, 11:55 PM   #4
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Thanks Rey & tebac, I appreciate your help!
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Old Jan 29, 2007, 8:27 AM   #5
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Hello wall33! I purchased the 50mm 1.8 for my D-50 a year and just love it!!!!! It is awesomein lowlight situations. I paid $110 for mine, I really think for the money this lens should be in every Nikon owners camera bag.

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Old Jan 31, 2007, 8:40 PM   #6
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I am also excited about the Nikon 50mm F- 1.4D that I just got for my D-50. It is an amazing lens. Here is a sample photo taken this afternoon.


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Old Feb 4, 2007, 4:17 PM   #7
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Ken Rockwell has a nice page on Nikon lens info detailing the various aspects/capabilities that may be of assistance...

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