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#1
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Old lens + 300d - what happens?
I have an old (3 yrs) sigma lens attached to my film eos 300 and am
considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies, but what exactly will be the problem - in what way will it not 'work' without re-chipping?? Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! |
#2
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Old lens + 300d - what happens?
In article , Gareth Tuckwell
writes I have an old (3 yrs) sigma lens attached to my film eos 300 and am considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies, but what exactly will be the problem - in what way will it not 'work' without re-chipping?? Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! Based on my experience (8-10 yr old 14mm Sigma on 10D) it will only work at full aperture - it just won't stop down at all. It will IIRC take a picture if set at full aperture. If you try setting at any other aperture you may get an error message. David -- David Littlewood |
#3
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In article , Gareth Tuckwell
writes I have an old (3 yrs) sigma lens attached to my film eos 300 and am considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies, but what exactly will be the problem - in what way will it not 'work' without re-chipping?? Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! Based on my experience (8-10 yr old 14mm Sigma on 10D) it will only work at full aperture - it just won't stop down at all. It will IIRC take a picture if set at full aperture. If you try setting at any other aperture you may get an error message. David -- David Littlewood |
#4
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Old lens + 300d - what happens?
One of mine gave an error code, locking up the camera, and the other simply
worked but the diaphragm never closed down. One had been re-chipped once but I don't know what the problem was as I didn't own it at that time. Both lenses were deemed "too old" by Sigma to be re-chipped. The one I bought new was 6. The one that had been re-chipped had come back from Sigma only one year earlier after its re-chipping, which took 6 months - during which the owner replaced it with a better lens and I picked up on what turned out to be a very bad trade. -- http://www.chapelhillnoir.com home of The Camera-ist's Manifesto The Improved Links Pages are at http://www.chapelhillnoir.com/links/mlinks00.html A sample chapter from my novel "Haight-Ashbury" is at http://www.chapelhillnoir.com/writ/hait/hatitl.html "Gareth Tuckwell" wrote in message ... I have an old (3 yrs) sigma lens attached to my film eos 300 and am considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies, but what exactly will be the problem - in what way will it not 'work' without re-chipping?? Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! |
#5
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Old lens + 300d - what happens?
Hi!
I have an old (3 yrs) sigma lens attached to my film eos 300 and am considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies A 3-year old Sigma will likely be fine without re-chiping. The problem allready occured with some of the later Canon film bodies. , but what exactly will be the problem - in what way will it not 'work' without re-chipping?? I get an "Error 99" Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? Unfortunately the latter - at lease in my case with an 14mm/3.5 Sigma I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! The loss would likely be small compraed to the price of the Camera... ;-)). I'd just try and assume for now that all will work. Cheers, B. |
#6
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Old lens + 300d - what happens?
On 2004-08-12, Gareth Tuckwell wrote:
in what way will it not 'work' without re-chipping?? You will get an "Err 99" indication and you will not be able to take a photo. Turning off AF will not make any difference. -- Erik |
#7
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On 2004-08-12, Gareth Tuckwell wrote:
in what way will it not 'work' without re-chipping?? You will get an "Err 99" indication and you will not be able to take a photo. Turning off AF will not make any difference. -- Erik |
#8
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Old lens + 300d - what happens?
I know it won't work as I contacted Sigma, they didn't say why it would not
work, only that lenses of my type (28-300 Aspherical Hyperzoom) with a serial number earlier than 3001001, would cost 35GBP to re-chip the lens. This would be only £5 with proof of purchase, but I don't have that! Thanks for the advice everyone though. "Boris Harss" wrote in message ... Hi! I have an old (3 yrs) sigma lens attached to my film eos 300 and am considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies A 3-year old Sigma will likely be fine without re-chiping. The problem allready occured with some of the later Canon film bodies. , but what exactly will be the problem - in what way will it not 'work' without re-chipping?? I get an "Error 99" Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? Unfortunately the latter - at lease in my case with an 14mm/3.5 Sigma I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! The loss would likely be small compraed to the price of the Camera... ;-)). I'd just try and assume for now that all will work. Cheers, B. |
#9
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I know it won't work as I contacted Sigma, they didn't say why it would not
work, only that lenses of my type (28-300 Aspherical Hyperzoom) with a serial number earlier than 3001001, would cost 35GBP to re-chip the lens. This would be only £5 with proof of purchase, but I don't have that! Thanks for the advice everyone though. "Boris Harss" wrote in message ... Hi! I have an old (3 yrs) sigma lens attached to my film eos 300 and am considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies A 3-year old Sigma will likely be fine without re-chiping. The problem allready occured with some of the later Canon film bodies. , but what exactly will be the problem - in what way will it not 'work' without re-chipping?? I get an "Error 99" Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? Unfortunately the latter - at lease in my case with an 14mm/3.5 Sigma I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! The loss would likely be small compraed to the price of the Camera... ;-)). I'd just try and assume for now that all will work. Cheers, B. |
#10
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Old lens + 300d - what happens?
Wrong. The problem is with Sigma. They reverse engineer the mount
consequently Sigam lenses are never actually compatible with Canon bodies. Sigma has no idea what is really in the Canon chip. Just one more way for Sigma to screw the public in order to save a buck. -- http://www.chapelhillnoir.com home of The Camera-ist's Manifesto The Improved Links Pages are at http://www.chapelhillnoir.com/links/mlinks00.html A sample chapter from my novel "Haight-Ashbury" is at http://www.chapelhillnoir.com/writ/hait/hatitl.html "Boris Harss" wrote in message ... Hi! I have an old (3 yrs) sigma lens attached to my film eos 300 and am considering a 300d. I know the lens will probably need re-chipping before it will 'work' on the newer digital bodies A 3-year old Sigma will likely be fine without re-chiping. The problem allready occured with some of the later Canon film bodies. , but what exactly will be the problem - in what way will it not 'work' without re-chipping?? I get an "Error 99" Is it just the autofocus that will fail, because surely the camera would be able to 'see' through the lens and still take a photo, or might the camera be unable to measure the light properly?? Or will the camera just refuse to take anything? Unfortunately the latter - at lease in my case with an 14mm/3.5 Sigma I know - take the lens to a shop and try it, only I don't live near any camera shops, so this will have to wait a while! The loss would likely be small compraed to the price of the Camera... ;-)). I'd just try and assume for now that all will work. Cheers, B. |
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