How do I know if lens from film SLR will fit new XT?

wantingtolearn

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I am very much a newbie when it comes to photography. I am buying a Rebel XT this week. I already have a film Rebel EOS, with the 35-80mm lens it came with. How do I know if this lens will fit on the XT? And if it WOULD fit, should I still buy the XT with the 18-55mm EF-S Lens in the kit, or is the 35-80mm lens "good enough"?

Thanks for taking the time to answer a confused amateur.
 
I am very much a newbie when it comes to photography. I am buying a
Rebel XT this week. I already have a film Rebel EOS, with the
35-80mm lens it came with. How do I know if this lens will fit on
the XT?
Yes, it will fit.
And if it WOULD fit, should I still buy the XT with the
18-55mm EF-S Lens in the kit, or is the 35-80mm lens "good enough"?
Definitely get the kit lens too. It is a bargain and very good (probably better than your 35-80) and the focal length range is much better for general photography on the XT (will correspond to 28-90mm whereas your 35-80 will have a field of view corresponding to 56-128mm on the XT, more like a short tele zoom).
Thanks for taking the time to answer a confused amateur.
 
so anything that fit your film EOS will also fit your XT. but note that the focal lengths will not seem as "wide" on the XT due to sensor size being smaller than 35mm film. in other words, your 35-80mm zoom will seem more like a "56-128mm" in terms of 35mm camera equivalent coverage. If you like wide angle, you may want a different lens, e.g. the 18-55. it would have similar field of view coverage on the XT (about 28-88 equivalent) as you were used to with the 35-80 on your film camera. price wise I think they practically give away the kit lens when you buy the camera, so it's probably worthwhile.
I am very much a newbie when it comes to photography. I am buying a
Rebel XT this week. I already have a film Rebel EOS, with the
35-80mm lens it came with. How do I know if this lens will fit on
the XT? And if it WOULD fit, should I still buy the XT with the
18-55mm EF-S Lens in the kit, or is the 35-80mm lens "good enough"?

Thanks for taking the time to answer a confused amateur.
 
Well, fit it yes. But will it work?

If it's a Canon brand EF mount lens no problems, it'll work fine. Doesn't matter if it rolled out of the factory in 1987, or 1997, or next year in 2007; that's the beauty of EOS.

However, third party lenses (ie. Sigma, Tamron, Tokina) often need rechipping to work with the newer camera protocols, and of course Canon does not gaurantee third party lenses to work. If the lens is a third party lens that also happens to be out of production, chances are you will not be able to have the thing rechipped, and you now have some neat magnifying lenses that you can give to the kids to play with (just as long as they don't put them in their mouths).
 
However, third party lenses (ie. Sigma, Tamron, Tokina) often need
rechipping to work with the newer camera protocols
This is definitely not correct.

There are several older Sigma lenses that don't work on the newer digital EOS cameras, but all the new DG lens work fine (at least, until now). It seems that Sigma does not rechip those older lenses anymore, so one must be careful.

There are no reported incompatibility issues regarding Tamron lenses in any EOS camera. And older Tokinas seem to work fine also, even in newer EOS cameras. I had one old Vivitar AF lens that also worked without any problems.

I think that putting all third party brands in the same bag and refering that 3rd party lenses often need rechiping is abusive. And your sentence also transmits the (wrong) idea that even buying new lenses from a third party brand may be risky.

Best regards.

--
Pedro Claro
Marinha Grande - Portugal
 
However, third party lenses (ie. Sigma, Tamron, Tokina) often need
rechipping to work with the newer camera protocols
This is definitely not correct.

There are several older Sigma lenses that don't work on the newer
digital EOS cameras, but all the new DG lens work fine (at least,
until now). It seems that Sigma does not rechip those older lenses
anymore, so one must be careful.

There are no reported incompatibility issues regarding Tamron
lenses in any EOS camera. And older Tokinas seem to work fine also,
even in newer EOS cameras. I had one old Vivitar AF lens that also
worked without any problems.

I think that putting all third party brands in the same bag and
refering that 3rd party lenses often need rechiping is abusive.
And your sentence also transmits the (wrong) idea that even buying
new lenses from a third party brand may be risky.

Best regards.
I sell cameras for a living. Third party lenses often need rechipping after a number of years.

DG Sigmas work fine for now, but more than likely Canon will change something in the future that will require some of them to be rechipped. How far in the future is a matter of speculation, but I have a Sigma that was bought in 2000 that worked on the D60 and the original Digital Rebel but not the XT or the 20D. And yes, in my work I've seen lenses from all third-party brands that have needed rechipping, or at least that have caused errors on new bodies.

If you want to use third party lenses fine, there's some nice ones available, you'll probably save some money too. But saying that rechipping isn't an issue is "abusive" and "transmits the (wrong) idea" that buying third party brands is without risk.

Warmest feelings.
 
I sell cameras for a living.
Lucky you... :)
Third party lenses often need
rechipping after a number of years.
That's not what I've been reading in the last two years in this and many other foruns and info sources...
DG Sigmas work fine for now, but more than likely Canon will change
something in the future that will require some of them to be
rechipped. How far in the future is a matter of speculation, but I
have a Sigma that was bought in 2000 that worked on the D60 and the
original Digital Rebel but not the XT or the 20D.
That's a risk, all right. But Canon did that too, when they changed from FD to EOS mount. How did the old FD users felt at that time? No one knows the future, sure, but that doesn't mean that Sigma (and Tamron, and Tokina) didn't learnt their lesson.
And yes, in my
work I've seen lenses from all third-party brands that have needed
rechipping, or at least that have caused errors on new bodies.
I never heard of Tamron or Tokina rechipping their lenses. I know there are some errors with some lenses (as well as with Canon lenses!) but it seems to me these cases happen in faulty lenses or lenses with some kind of electric contacts malfunction (or lack of cleaning).
If you want to use third party lenses fine, there's some nice ones
available, you'll probably save some money too.
That's the point of third party lenses. If they weren't cheaper, who would buy them? Not me, for sure. :)
But saying that
rechipping isn't an issue is "abusive" and "transmits the (wrong)
idea" that buying third party brands is without risk.
I'm sorry, but I never said that rechipping isn't an issue. I said that older Sigma lenses don't work on recent EOS cameras and that Sigma can't rechip them anymore. Of course , this is an issue! And I didn't say that buying third party lens is without a risk - the reference to the 'old Sigma lenses' problem is enough to make one think about this. What I wanted to imply in my post is that you can't judge the part for the whole (Sigma for all third party brands and older Sigma lenses for all Sigma lenses).

English is not my mother language and I know that often I don't end up writing the exact things I want to... Sorry about that.
Warmest feelings.
Likewise.

--
Pedro Claro
Marinha Grande - Portugal
 
However, third party lenses (ie. Sigma, Tamron, Tokina) often need
rechipping to work with the newer camera protocols
This is definitely not correct.

There are several older Sigma lenses that don't work on the newer
digital EOS cameras, but all the new DG lens work fine (at least,
until now). It seems that Sigma does not rechip those older lenses
anymore, so one must be careful.

There are no reported incompatibility issues regarding Tamron
lenses in any EOS camera. And older Tokinas seem to work fine also,
even in newer EOS cameras. I had one old Vivitar AF lens that also
worked without any problems.

I think that putting all third party brands in the same bag and
refering that 3rd party lenses often need rechiping is abusive.
And your sentence also transmits the (wrong) idea that even buying
new lenses from a third party brand may be risky.

Best regards.
I sell cameras for a living. Third party lenses often need
rechipping after a number of years.

DG Sigmas work fine for now, but more than likely Canon will change
something in the future that will require some of them to be
rechipped. How far in the future is a matter of speculation, but I
have a Sigma that was bought in 2000 that worked on the D60 and the
original Digital Rebel but not the XT or the 20D. And yes, in my
work I've seen lenses from all third-party brands that have needed
rechipping, or at least that have caused errors on new bodies.

If you want to use third party lenses fine, there's some nice ones
available, you'll probably save some money too. But saying that
rechipping isn't an issue is "abusive" and "transmits the (wrong)
idea" that buying third party brands is without risk.

Warmest feelings.
Conan

I'm sorry but I have to agree with Pedro.

All manufacturers of lenses have at times had problems with lenses producing errors, even Canon. But this is a matter of the lens malfunctioning - not a compatibility or "rechipping" issue.

As far as I know only Sigma has had issues with their lenses not being compatible with newly-issued Canon bodies and needing rechipping - and there have been some that have not been able to be rechipped to work. The difference is that Tamron licenses their design/mount directly from Canon whereas Sigma reverse-engineers their lenses. When Canon makes a change in their camera design, they ensure older lenses will be compatible (except for the change from FD manual to EF Automatic focus), and subsequently Tamron lenses, using the same technology, remain compatible as well. Sometimes Sigma lenses don't as their internal workings are not able to handle the changes.

I'm not aware if there have been issues with Tokina.

You state, "in my work I've seen lenses from all third-party brands that have needed rechipping..." Can you advise which Tamron (or Tokina for that matter) lens ever needed rechipping because of incompatibility issues? I don't think there have ever been any. If not, your inclusion of "third party lenses (ie. Sigma, Tamron, Tokina) often need rechipping" is therefore not correct and gives the impression that Tamron and Tokina (and everyone else) have also had this issue.

Keith
 
Conan

I'm sorry but I have to agree with Pedro.

All manufacturers of lenses have at times had problems with lenses
producing errors, even Canon. But this is a matter of the lens
malfunctioning - not a compatibility or "rechipping" issue.
Well it's a malfuction when the lens stops working, but it's typically a compatibility issue when it works on old bodies but not on new ones. Canon has, in my experience, fixed those errors mostly for free, even on out of production equipment.
As far as I know only Sigma has had issues with their lenses not
being compatible with newly-issued Canon bodies and needing
rechipping - and there have been some that have not been able to be
rechipped to work.
Typically, the previous generation Sigma lenses don't work on the newest bodies and are not rechippable as they are out of production. If Sigma is smart they will maintain service for at least their current EX lenses when they go out of production.
The difference is that Tamron licenses their
design/mount directly from Canon whereas Sigma reverse-engineers
their lenses.
Neither Canon nor Tamron have ever confirmed that to my knowledge, but that seems to be the concensus among the public. Some people have even suggested that the really basic cheap kit lenses are made by Tamron, but I've never really checked into that to see if it might be true or not.
When Canon makes a change in their camera design,
they ensure older lenses will be compatible (except for the change
from FD manual to EF Automatic focus), and subsequently Tamron
lenses, using the same technology, remain compatible as well.
Sometimes Sigma lenses don't as their internal workings are not
able to handle the changes.

I'm not aware if there have been issues with Tokina.

You state, "in my work I've seen lenses from all third-party brands
that have needed rechipping..." Can you advise which Tamron (or
Tokina for that matter) lens ever needed rechipping because of
incompatibility issues? I don't think there have ever been any.
I can't be absolutely certain which lenses cause problems as we've never logged which ones do and don't; it's not really that important. But generally, we're dealing with the cheaper consumer lenses when it comes to third party lenses so it shows up mostly on things like 70-300s and 28-300s and lenses like that; I think I've only seen a problem with a few Tokina 28-70s on some of the older eye-control focus cameras if memory serves me correctly (flash exposure problems I seem to recall). However, Tamron has evidently been recently telling some of their SP and teleconverter customers that AF is not gauranteed to work properly on digitals due to the lens coatings on some of their older equipment. I'm not entirely sure what that means as far as AF accuracy, but to blame the coatings seems rather odd and evasive to me (of course you can't rechip a coating).

Anyway, the solution for most customers is usually to just buy a nicer, newer lens, which works well for us of course. You don't really hear about many of these older lens issues, I assume, because who's really going to take the time to complain that their $200 lens from 1995 doesn't work on their 2006 DSLR. You hear about Sigma because plenty of people have bought lenses from just a few years ago that are incompatible and non-rechippable, and their owners are understandibly a little upset. But things have changed, most people accept it and don't grumble too much about buying new equipment.
If not, your inclusion of "third party lenses (ie. Sigma, Tamron,
Tokina) often need rechipping" is therefore not correct and gives
the impression that Tamron and Tokina (and everyone else) have also
had this issue.
Thank you for pointing out how being correct and being not correct works. I have to conclude that you assume I'm lying about this or deliberatly trying to mislead people for some reason. Perhaps you would have been more comfortable if I had said that given enough time third party lenses are known to occasionally have compatibility issues (which would be a somewhat silly statement to make as given enough time any statement can seem reasonable). But really I would love it if people would buy third party lenses by a large margin; it would make sales people and retailers tons of money.

Enjoy your lenses,
Conan
 
I sell cameras for a living.
Lucky you... :)
Maybe so maybe not, I could make a lot more money doing something else, but I sort of like my job.
Third party lenses often need
rechipping after a number of years.
That's not what I've been reading in the last two years in this and
many other foruns and info sources...
I've been in sales for nearly a decade so I've seen the whole transition into digital more or less. Lenses made within the last two years are pretty good when it comes to compatibility with current cameras.
That's a risk, all right. But Canon did that too, when they changed
from FD to EOS mount. How did the old FD users felt at that time?
No one knows the future, sure, but that doesn't mean that Sigma
(and Tamron, and Tokina) didn't learnt their lesson.
That was 20 years ago and has helped allow Canon to dominate the sports and photojournalism market. People were upset about the switch, but it didn't take long for EOS users to see what a monumentally beneficial switch that was.

It's not a matter of third parties learning their lesson, they are at the mercy of whatever Canon might choose to do in the future. So it's potentially going to be tricky to maintain future compatibility just by the nature of the business. If they've learned a lesson at all, it will hopefully be to provide upgrade service for at least their nicer lenses for years to come.
And yes, in my
work I've seen lenses from all third-party brands that have needed
rechipping, or at least that have caused errors on new bodies.
I never heard of Tamron or Tokina rechipping their lenses. I know
there are some errors with some lenses (as well as with Canon
lenses!) but it seems to me these cases happen in faulty lenses or
lenses with some kind of electric contacts malfunction (or lack of
cleaning).
Well, we're not really talking about a malfunctioning lens; it's when one lens works fine on older bodies and doesn't on newer bodies. The 85/1.2L would be an example of a Canon lens that had some compatibility issues on some newer bodies, but I think Canon was servicing those lenses sometimes for free.
If you want to use third party lenses fine, there's some nice ones
available, you'll probably save some money too.
That's the point of third party lenses. If they weren't cheaper,
who would buy them? Not me, for sure. :)
Well, some of them don't exist in the OEM lineup, and some are better in certain ways than OEM lenses. So there's some other reasons to buy them besides price.
But saying that
rechipping isn't an issue is "abusive" and "transmits the (wrong)
idea" that buying third party brands is without risk.
I'm sorry, but I never said that rechipping isn't an issue. I
said that older Sigma lenses don't work on recent EOS cameras and
that Sigma can't rechip them anymore. Of course , this is an
issue! And I didn't say that buying third party lens is without a
risk - the reference to the 'old Sigma lenses' problem is enough to
make one think about this. What I wanted to imply in my post is
that you can't judge the part for the whole (Sigma for all third
party brands and older Sigma lenses for all Sigma lenses).
Which as I said I've had experience with these issues involving other third parties as well. I felt that the gist of what you had said "transmits the (wrong) idea" about the third parties; I should have been a little more clear.
Indeed.
 

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