Sorry, I'm not an expert in lens and adapters, but in this videos I assume that no adapters are used? So is it true that all canon lenses can fit onto the sigma SA mount? And will it lead to any loss of image quality or autofocus function? :)
Alas I cant afford Leica glass...I once passed up the opportunity to get a Leica R 2x teleconverter that was going for about £40 but thats the closest I got.
I recently got hold of a Canon FD 85mm f1.2 L and am converting it to SA mount...Converting the aperture dial to fully manual operation is very simple. The moving rear element and the fixed rear element are both missing however so I'm looking for replacements before I can finish the job. I'm wondering if replacing them with rear elements from the current EF version would be possible...If it is, then it should negate the need to machine the rear of the lens down to retain infinity focus.
Sorry, I am deaf and couldn't follow the video. I have a Sigma zoom lens, 17-70 F2.8-4.5 Macro which is Canon fit (using it on my 400D). I hope to get the new Sigma SD15 body when it is available and wondered if I could still use my Sigma lens on it?
I have a Sigma DP1 too and if the SD15 is equal to that in picture quality it will be money well spent to get a DSLR version of the DP1.
As the Canon EF & Sigma SA mounts share the same 44mm registration distance its not possible to make an adapter to mate one to the other whilst retaining infinity focus unless your prepared to put up with at least 1.5x or more extra magnification with each lens as the only way is to modify a Canon EF or Sigma SA teleconverter to make an adapter. You could convert each EF lens to SA mount though, and whilst that is reversable alas, its not a simple, quick job to keep swapping the mounts over.
Dont worry Barry, there is no sound on the video anyway. Sigma lenses can be converted from Sigma SA mount to Canon EF mount and visa versa so you could convert your 17-70 to SA mount no problem but you would need a donar SA mount lens to supply an SA mounting plate and contact block...But that seems a bit pointless when you could simply buy that lens in SA mount.
Its actually older than the AE-1...The FL series lenses were used on the FT-QL and the early F-1 Canon SLR's...Then, along with the later F-1, Canon introduced the FD series...The AE-1 took FD lenses but could also take the older FL lenses.
If you have a metal turning lathe and know how to use it its easy, if you dont I would'nt bother, unless you can find a machine shop willing to do it for you.
The Canon lens in question does'nt have AF...Its a top of the range quality lens from the late 1960's...When it was sold orginally it would have cost about £290 but in todays money it would cost about £3000!!!
You only get autofocus with Sigma SA mount lenses or Canon EF lenses that have been converted to SA mount...All other lens options are manual focus only.
"old Leblonde 10" "lend-lease" lathe from the second world war which still works like new...They really built them in those days"
I inherited my grandfather's tools. The motors were not superior, but where the carriages matter for accuracy, such as on lathes and overhead arm saws, heavier is better. And lenses, how about those pre-war Zeiss lenses, they are objets d'art for all the hand finishing. Now we see too much plastic and aluminum. Aluminum has its place, but not for mount plates.
My SD14 came with v1.02 firmware installed so I upgraded the firmware to v1.04 straight away.
I dont really know about the speed of the burst rate as I do everything manually which makes one slow down and take a bit more care in setting up shots rather than just pointing it in the right direction and taking a burst of pics and hoping at least one turns out ok.
...But excellent autoracing shots are certainly possible in the right hands and with the right lenses.
Thats true...The Canon EF mount is virtually a clone of the Sigma SA mount, only bigger in diameter...Even the electrical communication protocalls between the lens and camera body are the same!...However, to date it has not been possible to retain the IS function on Canon EF lenses that have been converted to SA mount.
One thing to note is that while Pentax (PK) mount lenses can be used on the EF mount via an adapter, they can fit straight onto the SA mount without one (Providing a simple modification is done to each PK lens you want to use).
I just clipped off the auto aperture pin on a couple of Porst lenses, and they fit on Sigma. They don't focus to infinity, but are fine for portrait distances. Heavy teles in K mount slide around on Sigma, and if they don't focus to infinity, that's not good, except for macro. But if they prove themselves as quality lenses, it would be easy to shim a K plate by 1.5mm or add the 1.5mm shim washer and switch to an SA plate.
If they are M42 mount then I dont understand why they wont focus to infinity unless your making the mistake of using an M42-PK adapter instead of a proper M42-SA adapter.
@recbo You sure your not using M42-PK adapter by mistake?
M42-PK adapters are several mm shallower than M42-SA adapters and they have open bottoms which allow the AA pin to touch the dust protector on the camera.
You might not be able to resell lenses with clipped pins as the pin can be essential or the lenses aperture mechansim may not work correctly on some cameras.
Use a proper M42-SA adapter which has a flange built in to compress the pin and you will never have to clip AA pins again!
Not quite...Actualy I have converted this Canon FL 55mm f1.2 to Sigma SA mount so it can fit straight onto the SD14...Look at the quick view of the rear of the lens in the video and you can see it does'nt have an FL mounting plate anymore.
If you just swap the FL mounting plate for an SA one the registration distance will be 2mm out (FL is 42mm and SA is 44mm)and you wont be abe to focus to infinity...I had to machine 2mm off the lenses mounting boss before it could focus to infity..It was worth it though as its a great lens.
Now that you have had the Sigma for a while, how do you like it overall? How is the burst rate? I shoot autoracing occasionally and would like to use this feature. Have you had to install any of the software patches on your camera? I understand that there are a few out there.
Sorry, I'm not an expert in lens and adapters, but in this videos I assume that no adapters are used? So is it true that all canon lenses can fit onto the sigma SA mount? And will it lead to any loss of image quality or autofocus function? :)
Thanks!
seriousslyseriouss 1 year ago
U should put LEICA lens on ur SD14 :-)
kokfa 1 year ago
@kokfa
Alas I cant afford Leica glass...I once passed up the opportunity to get a Leica R 2x teleconverter that was going for about £40 but thats the closest I got.
g7vgg 1 year ago
The SA mount is based on a bayonetless Pentax K mount. (Which is why the rear lens caps are interchangeable between the two lenses.
shamus30 2 years ago
I recently got hold of a Canon FD 85mm f1.2 L and am converting it to SA mount...Converting the aperture dial to fully manual operation is very simple. The moving rear element and the fixed rear element are both missing however so I'm looking for replacements before I can finish the job. I'm wondering if replacing them with rear elements from the current EF version would be possible...If it is, then it should negate the need to machine the rear of the lens down to retain infinity focus.
g7vgg 2 years ago
Sorry, I am deaf and couldn't follow the video. I have a Sigma zoom lens, 17-70 F2.8-4.5 Macro which is Canon fit (using it on my 400D). I hope to get the new Sigma SD15 body when it is available and wondered if I could still use my Sigma lens on it?
I have a Sigma DP1 too and if the SD15 is equal to that in picture quality it will be money well spent to get a DSLR version of the DP1.
barrykap 2 years ago
As the Canon EF & Sigma SA mounts share the same 44mm registration distance its not possible to make an adapter to mate one to the other whilst retaining infinity focus unless your prepared to put up with at least 1.5x or more extra magnification with each lens as the only way is to modify a Canon EF or Sigma SA teleconverter to make an adapter. You could convert each EF lens to SA mount though, and whilst that is reversable alas, its not a simple, quick job to keep swapping the mounts over.
g7vgg 2 years ago
Dont worry Barry, there is no sound on the video anyway. Sigma lenses can be converted from Sigma SA mount to Canon EF mount and visa versa so you could convert your 17-70 to SA mount no problem but you would need a donar SA mount lens to supply an SA mounting plate and contact block...But that seems a bit pointless when you could simply buy that lens in SA mount.
, but you will need
g7vgg 1 year ago
Its actually older than the AE-1...The FL series lenses were used on the FT-QL and the early F-1 Canon SLR's...Then, along with the later F-1, Canon introduced the FD series...The AE-1 took FD lenses but could also take the older FL lenses.
g7vgg 2 years ago
Is this a pre-eos lens? That looks like an AE-1 type lens . Am I correct? Were there any modifications to the mount?
GreasyPragma 2 years ago
dsg? dpreview forum?
a20010494 3 years ago
Quote:"dsg? dpreview forum?"
Yes, thats me.
g7vgg 3 years ago
Hi, im considering about sd14, but the conversion is made to the lens or the camera? is it hard?
a20010494 4 years ago
If you have a metal turning lathe and know how to use it its easy, if you dont I would'nt bother, unless you can find a machine shop willing to do it for you.
g7vgg 4 years ago
im asking because in my country would be hard to find sigma-mount lens, and the optics i love the most are canon.
a20010494 3 years ago
and.... i know im being annoying, how about final image quality? auto focus works well? infinity focus? is theere a guide to do this?
a20010494 3 years ago
There is no other DSLR with better image quality than the SD14.
I only use manual focus lenses with mine so I cant comment on the AF performance.
All of my converted lenses can focus to infinty.
g7vgg 3 years ago
@g7vgg
Well now the SD1 has been announced and with an "accuity" of 46mp on tap it will beat even medium format cameras.
g7vgg 1 year ago
The Canon lens in question does'nt have AF...Its a top of the range quality lens from the late 1960's...When it was sold orginally it would have cost about £290 but in todays money it would cost about £3000!!!
g7vgg 3 years ago
You can use M42-SA adapters instead of genuine SA mounting plates...They are much easier to obtain (look on ebay) and relatively inexpensive.
g7vgg 2 years ago
@a20010494
You only get autofocus with Sigma SA mount lenses or Canon EF lenses that have been converted to SA mount...All other lens options are manual focus only.
g7vgg 1 year ago
Thanks a lot DSG! Now I know exactly how to do this! :D
rytterfalk 4 years ago
and, rytterfalk, you are god. because of you i'm buying this camera.
a20010494 3 years ago
DSG? I think I know you from Dpreview-Forums ;-)
Klingl3r 4 years ago
Your right, I do use Dpreview a lot.
g7vgg 4 years ago
"Thanks for the tip about the Canon lenses, this makes my consideration of the SD14 much easier now that I can use my FD lenses" -fiatnutz
FL not FD. It's not easy, either. Do you have a metal lathe?
recbo 4 years ago
Yes, an old Leblonde 10" "lend-lease" lathe from the second world war which still works like new...They really built them in those days!
g7vgg 4 years ago
"old Leblonde 10" "lend-lease" lathe from the second world war which still works like new...They really built them in those days"
I inherited my grandfather's tools. The motors were not superior, but where the carriages matter for accuracy, such as on lathes and overhead arm saws, heavier is better. And lenses, how about those pre-war Zeiss lenses, they are objets d'art for all the hand finishing. Now we see too much plastic and aluminum. Aluminum has its place, but not for mount plates.
recbo 4 years ago
I've got some old Canon's laying around...never thought to try it on a Sigma SDx.
jasonscottpage 4 years ago
My SD14 came with v1.02 firmware installed so I upgraded the firmware to v1.04 straight away.
I dont really know about the speed of the burst rate as I do everything manually which makes one slow down and take a bit more care in setting up shots rather than just pointing it in the right direction and taking a burst of pics and hoping at least one turns out ok.
...But excellent autoracing shots are certainly possible in the right hands and with the right lenses.
g7vgg 4 years ago
FL not FD lenses(maybe, I don't know FD). You can also mod EF lenses like EF 50mm f1.2 and f1.4
recbo 4 years ago
Thats true...The Canon EF mount is virtually a clone of the Sigma SA mount, only bigger in diameter...Even the electrical communication protocalls between the lens and camera body are the same!...However, to date it has not been possible to retain the IS function on Canon EF lenses that have been converted to SA mount.
g7vgg 4 years ago
One thing to note is that while Pentax (PK) mount lenses can be used on the EF mount via an adapter, they can fit straight onto the SA mount without one (Providing a simple modification is done to each PK lens you want to use).
g7vgg 4 years ago
I just clipped off the auto aperture pin on a couple of Porst lenses, and they fit on Sigma. They don't focus to infinity, but are fine for portrait distances. Heavy teles in K mount slide around on Sigma, and if they don't focus to infinity, that's not good, except for macro. But if they prove themselves as quality lenses, it would be easy to shim a K plate by 1.5mm or add the 1.5mm shim washer and switch to an SA plate.
recbo 4 years ago
What mount were they?...M42?...Pentax K (PK)?
If they are M42 mount then I dont understand why they wont focus to infinity unless your making the mistake of using an M42-PK adapter instead of a proper M42-SA adapter.
g7vgg 3 years ago
@recbo You sure your not using M42-PK adapter by mistake?
M42-PK adapters are several mm shallower than M42-SA adapters and they have open bottoms which allow the AA pin to touch the dust protector on the camera.
You might not be able to resell lenses with clipped pins as the pin can be essential or the lenses aperture mechansim may not work correctly on some cameras.
Use a proper M42-SA adapter which has a flange built in to compress the pin and you will never have to clip AA pins again!
sigmasd10 1 year ago
Not quite...Actualy I have converted this Canon FL 55mm f1.2 to Sigma SA mount so it can fit straight onto the SD14...Look at the quick view of the rear of the lens in the video and you can see it does'nt have an FL mounting plate anymore.
g7vgg 4 years ago
Thanks for the tip about the Canon lenses, this makes my consideration of the SD14 much easier now that I can use my FD lenses.
fiatnutz 4 years ago
If you just swap the FL mounting plate for an SA one the registration distance will be 2mm out (FL is 42mm and SA is 44mm)and you wont be abe to focus to infinity...I had to machine 2mm off the lenses mounting boss before it could focus to infity..It was worth it though as its a great lens.
g7vgg 4 years ago
Now that you have had the Sigma for a while, how do you like it overall? How is the burst rate? I shoot autoracing occasionally and would like to use this feature. Have you had to install any of the software patches on your camera? I understand that there are a few out there.
Thanx again for the great FL/FD tip!!!
fiatnutz 4 years ago