I've heard of adapters for such things.  Wait for someone else to
provide specifics.

Any EF lens will work.

Some good value for money can be found with the 70-200mm f/4L.  It's
not 300mm, but it's L.

Yes, the 28-105 will work just fine on the XT.

Just remember the FOV conversion factor which is 1.6x resulting in a
field of view that resembles a 45-168mm lense. You'll probably need the
18-55 kit lense for the wider angles.

In the same level of optical quality, you might want to look at the
newer 70-300 f/4-5.6 IS lense.

If you want really good optics, for about the same money you can get the
fantastic 70-200 f/4 L lense.

$The camera comes with the 18-55mm lens.  I have a 28-85mm 1:4 Canon FD lens
$for my A1.  I'd be happy with that quality and range for the digital camera.
$Any suggestions?

  I have no idea what the quality of that FD lens is, but the 18-55
gives you the same range.  Keep in mind the 1.6 cropping factor of the
350D; the 18-55 gives roughly the same coverage as a 28-90 gives on a
film body.  The 18-55 is a kit lens, and kit lenses aren't known for
stellar optics, but it's supposedly better than most kit lenses.

  My suggestion would be to use the 18-55 for a while and see if it
meets your needs.  If you find its optics disappointing, or need
something faster, or wider, or longer, or with faster autofocus,
then you'll know where to focus your search for a new lens.  If,
on the other hand, the 18-55 does what you need, you can put the
money into something which would be more useful to you.

$                  My daughter has an EOS Elan 7 with a 28-105 f:3.5-4.5 EF
$Ultrasonic lens,  Is this compatible?

  Yes, and it's one of Canon's better consumer-grade zoom lenses,
both optically and mechanically.  Again, keep in mind the cropping
factor; this acts like roughly a 45-170.  Unless you don't like
wide-angle views at all, this is not suitable as an only lens on
a 350D.

  All Canon EF lenses are compatible with all EOS bodies, film or
digital.  Third-party EF lenses are physically compatible; some have
had some software compatibility issues.  The lenses you have to watch
out for are EF-S lenses, and third-party lenses which claim to work
only on APS-sized digital bodies.  All of these will be fine on the
350D, but will not work on bodies with larger sensors (such as film
bodies, or some of the higher-end digital bodies).  If you want
lenses which will work on your 350D as well as on your
daughter's Elan (or on a higher-end digital body if you choose to
upgrade at some point), then you'll want to avoid these digital-only
lenses; if, on the other hand, your only concern is whether they'll
work on your 350D, then feel free to include digital-only lenses
in your search.

  The 18-55 kit lens, for instance, is an EF-S lens.  Your daughter
can't use it on her Elan; it won't physically fit.  But it will be
fine on the 350D.

$                                       If so I'll spent the dollars on
$something in the 300 mm range.

  Again, keep in mind the cropping factor; if you're thinking about
300mm in 35mm terms, you need a 200mm (approximately) lens on the 350D.
Are you looking for a zoom to go from where the 18-55 or 28-105 leaves
off to get you to 200/300, or for a 200/300 prime?  And what's your
budget for this?

------------------------------------------------------------------
    Say hi to my cat -- http://www.stevedunn.ca/photos/toby/

Any EF lens is compatible so your 28-105 will work. regarding the A1
lens, I would say as long as its a 58mm lens, you could use it. Of
course, you're going to have to go manual focus though.

FD lens will probably not work with the auto focus of the Rebel XT.
I've been quite happy with the 17-85 IS lens as a "normal" lens with the XT
(350D)

Steve Dell

50/1.4
20/2.8

200/2.8

http://digitcamera.tripod.com/#slr