Issue with Canon Autofocus?

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

"Brian Baird" <no@no.thank.u> wrote in message
news:MPG.1d62036c423392469897cc@news.verizon.net...
> In article <o73gf1lsc0msqvuqpddvkdvkdrosr105vk@4ax.com>, none@none.com
> says...
> > >I would look to see if the actuator pin that moves the autofocus mirror
is
> > >plastic, or metal. The digital Rebel EOS 300d is plastic, and mine
broke at
> > >9000 shutter clicks. Not happy. I don't know if the XT is plastic or
metal,
> > >but supposedly the higher end cam's are metal. The function of the
autofocus
> > >is fine, its the long term durability I am questioning.
> > >
> >
> > So much for the durability and resiliency of polycarbonate versus
> > metal.
>
> It probably wasn't polycarbonate, doofus.

And even if it was wear and impact resistance are two entirely different
things. But shame on Canon for specing the wrong material for the
application. Reminds me of my ex-wife's Ford Escort that had a notorious
problem with the inlet or outlet tube of the heater core constantly snapping
off of the core. The $150 OEM part had plastic tubes glued to the core
while the $30 aftermarket part had brass tubes soldered to the core.

Greg

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

On Tue, 09 Aug 2005 01:23:56 GMT, "David P. Summers"
<drscience3000@yahoo.com> wrote:

>
>
>G.T. wrote:
>> "David P. Summers" <drscience3000@yahoo.com> wrote in message
>> news:42F71E1C.9020102@yahoo.com...
>>
>>>I'm considering buying the Canon Digital Rebel XT. Someone suggested
>>>that they may have heard that the autofocus on the camera doesn't work
>>>as well as some of the other choices (such as the Pentax or the Nikon).
>>>He had some difficulties, but he thinks it might also have been the
>>>lens. How does the autofocus on that camera compare to similar cameras?
>>>
>>
>>
>> Depends on the lens.
>
>Are you saying it may have trouble with some lenses? Or that some
>lenses have trouble? Or that there is not problem other than how some
>people use some lenses?
>
>>
>>
>>>I've seen webpages like...
>>>http/www.canon-dslr.com/
>>>http/www.luminous-landscape.com/essays/canon-controversies.shtml
>>>Have me wondering...
>>>
>>
>>
>> Those have nothing to do with the Rebel XT.
>
>Well, one didn't say, and the other was a predicesor model. If there
>was a problem with a previous model, the question is, was it fixed? If
>not, then that would say that what I've heard can be discounted...
>
> >Are you just a troll?
>
>I'm someone trying to figure out if a concern about a purchase is a real
>issue. I don't know why using the internet has to mean someone will
>question your motives even when you are being quite sincere.

Personal opinion:
If, after reading the published reviews, as well as other sites
discussing he camera, you're not sure if it is the camera you should
buy, then don't buy it. There are many other choices out there. It
won't bother other Canon users at all.

--
Bill Funk
replace "g" with "a"
funktionality.blogspot.com

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

I would say all non manufacturer lenses can have probems
I had a Pentax MZ5 with a Sigma 170-500. It used to hunt a lot and was slow
whilst focusing. When I switched to digital I bought the 300D with another
Sigma 170-500 and a Tamron 70-300. The Sigma hunted and the Tamron was dog
slow. Bought a canon 100-400IS L and wow, Replaced the Tamron witha Canon
75-300 USM III (did not have funds for the IS) and dead happy with speed and
focusing capabilities. I have had no problem since fitting Canon lenses to
my 300D and 350D, just miss the 500mm though

Charlie


"David P. Summers" <drscience3000@yahoo.com> wrote in message
news:42F80647.6070907@yahoo.com...
>
>
> G.T. wrote:
>> "David P. Summers" <drscience3000@yahoo.com> wrote in message
>> news:42F71E1C.9020102@yahoo.com...
>>
>>>I'm considering buying the Canon Digital Rebel XT. Someone suggested
>>>that they may have heard that the autofocus on the camera doesn't work
>>>as well as some of the other choices (such as the Pentax or the Nikon).
>>>He had some difficulties, but he thinks it might also have been the
>>>lens. How does the autofocus on that camera compare to similar cameras?
>>>
>>
>>
>> Depends on the lens.
>
> Are you saying it may have trouble with some lenses? Or that some lenses
> have trouble? Or that there is not problem other than how some people use
> some lenses?
>
>>
>>
>>>I've seen webpages like...
>>>http/www.canon-dslr.com/
>>>http/www.luminous-landscape.com/essays/canon-controversies.shtml
>>>Have me wondering...
>>>
>>
>>
>> Those have nothing to do with the Rebel XT.
>
> Well, one didn't say, and the other was a predicesor model. If there was
> a problem with a previous model, the question is, was it fixed? If not,
> then that would say that what I've heard can be discounted...
>
> >Are you just a troll?
>
> I'm someone trying to figure out if a concern about a purchase is a real
> issue. I don't know why using the internet has to mean someone will
> question your motives even when you are being quite sincere.
>

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

>David Summers wrote ...
>
>Thanks to Larry and everyone else who posted useful comments. I think
>I undestand the issue a bit better and will ponder what has been said

Here's a site which discusses the 10D "problem" in detail, you'll
probably find it interesting. As mentioned earlier, the Rebel XT model
you are looking at doesn't have this problem (neither did most of the
10D's, but some did).

http/www.photo.net/learn/focustest/

Bill

 

[Larry]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

In article <dikhf199hu6csephpirmvc5lr86hm6okje@4ax.com>, BigBill@there.com
says...
> >
> >I'm someone trying to figure out if a concern about a purchase is a real
> >issue. I don't know why using the internet has to mean someone will
> >question your motives even when you are being quite sincere.
>

There are no OUTSTANDING issues with the XT. If you want the camera, buy it,
and use it.

If yours has issues you can return it to any REPUTABLE dealer. Canon bashers
have come up with some issues abourt the XT, as well as the '20 and he
original Drebel, but for the most part they are parroting anecdotal
experiences of people who :

1. had a defective lens

or

2. had a defective camera

or

3. dont know hoe to use a DSLR.


No camera is perfect, they all have some compromises, and it is up to you to
decide which compromise you are willing to put up with.


--
Larry Lynch
Mystic, Ct.

 

[Guest]

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G.T. wrote:

>>
>>I'm someone trying to figure out if a concern about a purchase is a real
>>issue. I don't know why using the internet has to mean someone will
>>question your motives even when you are being quite sincere.
>
>
> If you were all that sincere you wouldn't be quoting web pages that have
> nothing to do with the Rebel XT. The date on one is from 2004 long
before
> the XT was released, and the other is regarding the 10D, a camera that is
> two revisions before the XT.

I think it is relevant. They speak to whether canon has a fundamental
problem in their focusing. You may disagree, but that doesn't mean
someone else isn't sincere. I tried responding with a post asking for
you to elaborate, but not luck

I'm sorry, but you have been one of the least helpful posters here. You
have done nothing but try to be dismissive and assume that nobody might
have a concern where you don't. When you do say something, it is a
short comment that really doesn't say anything.

It seems clear that using charges of "trolling" are now a way of trying
to silence posts that one doesn't care for.

 

[Guest]

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"David P. Summers" <drscience3000@yahoo.com> wrote in message
news:42F8E63D.9050806@yahoo.com...
>
>
> G.T. wrote:
>
> >>
> >>I'm someone trying to figure out if a concern about a purchase is a
real
> >>issue. I don't know why using the internet has to mean someone will
> >>question your motives even when you are being quite sincere.
> >
> >
> > If you were all that sincere you wouldn't be quoting web pages that
have
> > nothing to do with the Rebel XT. The date on one is from 2004 long
> before
> > the XT was released, and the other is regarding the 10D, a camera that
is
> > two revisions before the XT.
>
> I think it is relevant. They speak to whether canon has a fundamental
> problem in their focusing. You may disagree, but that doesn't mean
> someone else isn't sincere. I tried responding with a post asking for
> you to elaborate, but not luck
>

Elaborate on what? There was nothing to elaborate on. Please point to one
report that suggests that Canon has a fundamental problem in their focusing.
I assume you know how to use a search engine. You picked a couple of sites
that discuss a camera that may as well be considered an antique in the
digital world and I pointed that out. I did the same as everyone else has
done but in much less waste of words. Do you really need me to type a 500
word essay telling you that you are referencing out of date material? If
so, I can accomodate.

> I'm sorry, but you have been one of the least helpful posters here. You
> have done nothing but try to be dismissive and assume that nobody might
> have a concern where you don't. When you do say something, it is a
> short comment that really doesn't say anything.
>

It said everything that needed to be said, most importantly: "Those have
nothing to do with the Rebel XT." Again, if you have any sites that bring
up fundamental flaws in Canon focusing or specifically the Rebel XT then by
all means bring them up. Otherwise, you're just being obnoxious.

> It seems clear that using charges of "trolling" are now a way of trying
> to silence posts that one doesn't care for.

It seems clear that the trolls are "trolling" even though they don't think
they are.

BTW, did you try Googling on Rebel XT focus problems? If so, were the 10D
pages the only ones that came up? If not, how did you come up with those
10D pages? The Rebel XT has been out 6 months or so, you seem like an
intelligent person, don't you think there would be a wealth of sites
documenting any focus problems with the XT? And yet you only came up with
10D problems. Doesn't that tell you something?

Greg

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

Thanks to Larry and everyone else who posted useful comments. I think I
undestand the issue a bit better and will ponder what has been said...

Larry wrote:
> In article <dikhf199hu6csephpirmvc5lr86hm6okje@4ax.com>, BigBill@there.com
> says...
>
>>>I'm someone trying to figure out if a concern about a purchase is a real
>>>issue. I don't know why using the internet has to mean someone will
>>>question your motives even when you are being quite sincere.
>>
>
> There are no OUTSTANDING issues with the XT. If you want the camera, buy it,
> and use it.
>
> If yours has issues you can return it to any REPUTABLE dealer. Canon bashers
> have come up with some issues abourt the XT, as well as the '20 and he
> original Drebel, but for the most part they are parroting anecdotal
> experiences of people who :
>
> 1. had a defective lens
>
> or
>
> 2. had a defective camera
>
> or
>
> 3. dont know hoe to use a DSLR.
>
>
> No camera is perfect, they all have some compromises, and it is up to you to
> decide which compromise you are willing to put up with.
>
>

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

In article <1123614985.327926.106100@g43g2000cwa.googlegroups.com>,
Bill Hilton <bhilton665@aol.com> wrote:


I don't take too many pictures of lines on paper.

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

RichA wrote:
>
<snip>
> >I would look to see if the actuator pin that moves the autofocus mirror is
> >plastic, or metal. The digital Rebel EOS 300d is plastic, and mine broke at
> >9000 shutter clicks. Not happy. I don't know if the XT is plastic or metal,
> >but supposedly the higher end cam's are metal. The function of the autofocus
> >is fine, its the long term durability I am questioning.
> >
>
> So much for the durability and resiliency of polycarbonate versus
> metal.

Jesus, Rich, you'll grab any straw to make your point, won't you?
You're as bad as Stacey. Nobody has said the actuator is made from
polycarbonate, probably nobody except Canon knows what it's made of.
The BODY is polycarbonate - the same stuff they make aircraft
windshields from. Tupperware it's not.

Get a grip.

Colin D.

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

In article <11fgiqm5pk6qj5b@corp.supernews.com>, getnews1@dslextreme.com
says...
> But shame on Canon for specing the wrong material for the
> application. Reminds me of my ex-wife's Ford Escort that had a notorious
> problem with the inlet or outlet tube of the heater core constantly snapping
> off of the core. The $150 OEM part had plastic tubes glued to the core
> while the $30 aftermarket part had brass tubes soldered to the core.

I don't know exactly what the material is (I don't have the camera, and
if I did I'm not going to take it apart to find out) but I'd say the
issue with the shutter doesn't seem to be widely reported.

But the Ford thing... yeah... Ford engineers are retarded at times.
--
http/www.pbase.com/bcbaird

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

G.T. wrote:
>
>
>>It seems clear that using charges of "trolling" are now a way of trying
>>to silence posts that one doesn't care for.
>
>
> It seems clear that the trolls are "trolling" even though they don't think
> they are.

Trolling, at least in all the newsgroups I've been in, refer deliberate
attempts to post in a way that stirs up controversy rather than a
sincere attempt to discuss and issue. It is not simply talking about
something controversial, posting something you don't agree with, or even
being wrong about something. You can't troll by "accident".

I must say that you are simply casting for way to label post as trolls
because you don't like them.

>
> BTW, did you try Googling on Rebel XT focus problems? If so, were the 10D
> pages the only ones that came up?

Yes I did. I am now aware of the difference in problems between the 10D
and the Rebel XT. But I would never have learned it from you....

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

"David P. Summers" <drscience3000@yahoo.com> wrote in message
news:42FA9DD1.8090402@yahoo.com...
>
>
> G.T. wrote:
> >
>
> >
> > BTW, did you try Googling on Rebel XT focus problems? If so, were the
10D
> > pages the only ones that came up?
>
> Yes I did. I am now aware of the difference in problems between the 10D
> and the Rebel XT. But I would never have learned it from you....
>

You didn't need me or anyone else for that matter. You just needed to use
your brain.

Greg

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

Bill Hilton wrote:
>>David Summers wrote ...
>>
>>Thanks to Larry and everyone else who posted useful comments. I think
>>I undestand the issue a bit better and will ponder what has been said
>
>
> Here's a site which discusses the 10D "problem" in detail, you'll
> probably find it interesting. As mentioned earlier, the Rebel XT model
> you are looking at doesn't have this problem (neither did most of the
> 10D's, but some did).
>
> http/www.photo.net/learn/focustest/

Yeah, I'm clearer on the 10D issue.

I've been looking around and all the professional reviewers I've seen
think the autofocus is good. OTOH, there is a small, but persistent
trickle of user complaining about it. That doesn't seem to be true of
the Nikon. Is it a symptom of problem with some cameras? Is it simply
that there are more Canons out there (and so more users to complain)?
Is it that the autofocus works OK, but is harder to use well? I don't know.

I like the 8 Mpixels feature, but I'm thinking of going with the Nikon
(what is the different between the D50 and the D70?), if only because
I'm afraid I will be overly critical of the focus if I get the Canon.

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

In article <42FA9F27.1080904@yahoo.com>, drscience3000@yahoo.com says...
> I like the 8 Mpixels feature, but I'm thinking of going with the Nikon
> (what is the different between the D50 and the D70?), if only because
> I'm afraid I will be overly critical of the focus if I get the Canon.

I've seen some Nikon measurebators that were just as bad as the Canon
ones.

In any case, get the camera that fits you, and for the love of god,
don't measurebate! You'll go blind.
--
http/www.pbase.com/bcbaird

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

G.T. wrote:
> "David P. Summers" <drscience3000@yahoo.com> wrote in message
> news:42FA9DD1.8090402@yahoo.com...
>
>>
>>G.T. wrote:
>>
>>>BTW, did you try Googling on Rebel XT focus problems? If so, were the
>>
> 10D
>
>>>pages the only ones that came up?
>>
>>Yes I did. I am now aware of the difference in problems between the 10D
>>and the Rebel XT. But I would never have learned it from you....
>>
>
>
> You didn't need me or anyone else for that matter. You just needed to use
> your brain.

So you decided to deride my reasons for posting?

A suggestion, if you think someone is being dumb (and clearly you are
quick to think that), and you don't have anything postive to contribute,
maybe you should just not say anything rather than, for example, trying
to call them a troll?

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

Brian Baird wrote:
> In article <42FA9F27.1080904@yahoo.com>, drscience3000@yahoo.com says...
>
>>I like the 8 Mpixels feature, but I'm thinking of going with the Nikon
>>(what is the different between the D50 and the D70?), if only because
>>I'm afraid I will be overly critical of the focus if I get the Canon.
>
>
> I've seen some Nikon measurebators that were just as bad as the Canon
> ones.
>
> In any case, get the camera that fits you, and for the love of god,
> don't measurebate! You'll go blind.

Measurebate?

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

"David P. Summers" <drscience3000@yahoo.com> wrote in message
news:42FB0956.8060706@yahoo.com...
>
>
> G.T. wrote:
> > "David P. Summers" <drscience3000@yahoo.com> wrote in message
> > news:42FA9DD1.8090402@yahoo.com...
> >
> >>
> >>G.T. wrote:
> >>
> >>>BTW, did you try Googling on Rebel XT focus problems? If so, were the
> >>
> > 10D
> >
> >>>pages the only ones that came up?
> >>
> >>Yes I did. I am now aware of the difference in problems between the 10D
> >>and the Rebel XT. But I would never have learned it from you....
> >>
> >
> >
> > You didn't need me or anyone else for that matter. You just needed to
use
> > your brain.
>
> So you decided to deride my reasons for posting?

I didn't until you started going on and on trying to justify your lame ass
choice of samples of focusing problems.

>
> A suggestion, if you think someone is being dumb (and clearly you are
> quick to think that), and you don't have anything postive to contribute,
> maybe you should just not say anything rather than, for example, trying
> to call them a troll?
>

Dude, I gave you an answer. I said that what you were reading had nothing
to do with a Rebel XT. Really simple and obvious, I mean REALLY SIMPLE.

Greg

 

[Guest]

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In article <42FB0995.7030407@yahoo.com>, drscience3000@yahoo.com says...
> > I've seen some Nikon measurebators that were just as bad as the Canon
> > ones.
> >
> > In any case, get the camera that fits you, and for the love of god,
> > don't measurebate! You'll go blind.
>
> Measurebate?

Measureabate: v. to ceaselessly test your camera in a manner that will
never reflect its real world performance or capabilities.
--
http/www.pbase.com/bcbaird

 

[Guest]

Archived from groups: rec.photo.digital,rec.photo.digital.slr-systems,rec.photo.equipment.misc (More info?)

G.T. wrote:
>>>
>>>You didn't need me or anyone else for that matter. You just needed to
>>
> use
>
>>>your brain.
>>
>>So you decided to deride my reasons for posting?
>
>
> I didn't until you started going on and on trying to justify your lame ass
> choice of samples of focusing problems.

And we come back to it. You don't think my concerns were valid and so
you feel free to attack me personally.

>
>
>>A suggestion, if you think someone is being dumb (and clearly you are
>>quick to think that), and you don't have anything postive to contribute,
>>maybe you should just not say anything rather than, for example, trying
>>to call them a troll?
>>
>
>
> Dude, I gave you an answer. I said that what you were reading had nothing
> to do with a Rebel XT. Really simple and obvious, I mean REALLY SIMPLE.

Look at my first reply and the respons to the first quoted text. You
gave me a short answer. I posted three different questions to try and
elucidate something useful about it and you responded with another
cryptic answer.

Look, if you think it is OK to attack posts you don't like as trolls (as
you seem to feel above), at least be honest an admit it (and if you feel
embarassed then maybe reexamine your bahavior). But also trying to
pretend you were being helpful just doesn't fly. I leaned something
real from this thread, but not from anything you said.

I any case, I have no more time to deal with immaturity on the net. I
have nothing more to say....