In article <>, Tony Cooper
<> wrote:
> >> Give up on the 3 cheap lenses and buy good glass with that money.
> >
> >Which brings me to the next question. I went to Casey's in Vegas yesterday,
> >and handled the D7000 with 18-105 VR (?) lens. I guess Canon's equivalent
> >is image stabilization. Nice hefty camera with lots of readable info.
> >
> >You made reference to cheap glass. Are the three lens packages on the
> >Internet for around $1400 cheap glass, or REAL Nikon lenses? They wanted
> >$1297 for the one at Casey's out the door with the one lens.
>
> It's not so much a matter of cheap glass. Some of Nikon's lenses are
> better than other Nikon lenses, but the not-better ones are not cheap
> glass.
some are.
> The Nikon kit lenses, or package lenses, are not as good as some of
> Nikon's other lenses, but you only get a premium lens if you pay a
> premium price.
obviously.
> Lenses with fewer elements tend produce sharper images than lenses
> with more elements.
wrong. *some* might, others might not. it depends on the lenses.
a better metric is cost. expensive lenses tend to produce sharper
images than cheaper lenses. that's one reason why they're expensive.
> There are more elements in an 18-105 than there
> are in an 18-55. The images will be less sharp at the 105 end, but
> whether or not that will be noticeable to you depends on what you're
> shooting.
are you seriously comparing 105mm from one lens to a lens that stops at
55mm??? seriously?
anyway, both of those are kit lenses that are designed for a price
point more than quality.
> The sharpest Nikon lenses are the prime lenses,
also false. the nikon 14-24mm zoom lens is sharper than any fixed focal
length nikon lens in that range (nikon's claim and tests bear that
out).
> but they are less
> adaptable in composing the image. You have to compose with your feet.
> The wider the range of zoom, the easier it is to compose unanticipated
> shots, but you might not get the tack-sharp image you want.
again, it depends on the lens.
> >How careful do I need to be about bundled lens deals on ebay, and maybe
> >bhcameras, and the big sellers?
>
> Be careful of the big internet sellers. B&H and Adorama are reputable
> dealers, but many of the others are not. They'll force you buy
> over-priced accessories or they'll cancel the sale.
some are scum, but it's not hard to figure out which ones they are. if
it's too good to be true it probably is.
<http://www.resellerratings.com/>
however, he was mainly asking about ebay. for ebay, read the auction
*very* carefully, ask questions and check the seller's feedback. know
what the item is worth, both new and used, and bid accordingly. there's
no point in bidding close to what you can buy one new in a store. there
are some very good deals on ebay but you do have to be smart about it.
ebay also offers their own protection in the unlikely event you get
screwed.
> >And could you fill me in on the use of the 50mm fixed lens that is so common
> >to bundles?
>
> >What types of photos are they commonly used for?
>
> That's a prime lens. No zoom factor. Compose with your feet. Great
> portrait lens if you are shooting people, especially the head and
> shoulder shot.
actually, a 50mm isn't that great for portraits. on a full frame camera
it's much too short and on a crop sensor camera (which he has), it's
75mm effective, which is better but still on the short side.
the main advantage of a 50mm is its speed, f/1.8 or f/1.4. that's quite
a bit faster than any kit zoom lens (f/4-5.6) and a bit faster than the
pro zooms (f/2.

.
> Do you understand "compose with your feet"? To fill the frame with
> the subject when using a prime lens, you move closer to or further
> from the subject. To compose the same image with a zoom lens (18-55,
> 18-105, or 18-270) you zoom in or out without having to move.
composing with your feet changes perspective. zooming does not.
changing the perspective might matter or it might not, depending on the
subject. for a portrait, it almost always will.