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SLT compatibility and dyxum lens database

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overeema View Drop Down
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Post Options Post Options   Quote overeema Quote  Post ReplyReply Direct Link To This Post Posted: 19 March 2018 at 16:10
Originally posted by Phil Wood Phil Wood wrote:

I have a Sigma lens which is not in the database - an old 60-200mm f4/5.6 zoom. Works fine with my A58 but the A350 doesn't recognise that it's there.

It's a push/pull zoom which doesn't really creep - it runs.

This is weird. Some Sigma lenses are known to have SLT issues, but I never heard any DSLR to have any issues with any A-mount lens, except focus hunting.
Are you sure there is not any kind of malfunctioning involved?
minolta owner since 1969;A350-CZ1680-G70300-Tamron60F2-Minolta100F2-35105-28135-50F1.7; NEX6-E1650-E18105G (& 5 x minolta MC/MD)
 



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Cliff View Drop Down
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Post Options Post Options   Quote Cliff Quote  Post ReplyReply Direct Link To This Post Posted: 19 March 2018 at 18:45
Hi Phil, I have one of those 60-200's, it came off Ebay about 20 years ago. Looks like they made several lenses in that series, but not for long. Mine ambles along rather than runs. It worked on my a100 when I got it as well as a65 and a7ii with LA-EA4. Not a bad lens.

overeema, Long ago there was lots and lots of chatter around here about older Sigmas erratic functioning on Minolta and Sony SLRs. For awhile there was certainty that it was tied to serial numbers. Numbers beginning with 2 were compatible, those beginning with 1 generally were not. That does not seem to be consistent on newer bodies.

I have three copies of a Sigma 75-200mm f2.8-3.5. The one I got around 1990 still works wonderfully today, a rebranded one works well but the zoom is sloppy. A new looking copy with a 1xxx number is not recognized by any of my Sony cameras, but responds on my old Minolta 7000i.

Some lenses that did not work on the a100 worked well on the a65. I figured that Sony got more accommodating on what they considered "compatible" A mount lenses.

Contax RF, Minolta7000i, Sony A100, A65, Nex5T, A7ii, A6500. 2 many lenses, mostly ordinary Minolta & 3rd party A, MC/D, other mf, vintage Vivitars & cats, LA-EA2,3,4 E16-50&55-210mm
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Phil Wood View Drop Down
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 26 March 2018 at 10:51
Originally posted by overeema overeema wrote:

Originally posted by Phil Wood Phil Wood wrote:

I have a Sigma lens which is not in the database - an old 60-200mm f4/5.6 zoom. Works fine with my A58 but the A350 doesn't recognise that it's there.

It's a push/pull zoom which doesn't really creep - it runs.

This is weird. Some Sigma lenses are known to have SLT issues, but I never heard any DSLR to have any issues with any A-mount lens, except focus hunting.
Are you sure there is not any kind of malfunctioning involved?


Obviously something is not quite right - but I have tested the lens on two A350 bodies and two A58s - neither A350 recognises its presence both A58s are quite happy with it. I'm not sure what could be faulty to cause this to occur?
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 26 March 2018 at 11:10
Originally posted by Cliff Cliff wrote:

Hi Phil, I have one of those 60-200's, it came off Ebay about 20 years ago. Looks like they made several lenses in that series, but not for long. Mine ambles along rather than runs. It worked on my a100 when I got it as well as a65 and a7ii with LA-EA4. Not a bad lens.

Hi Cliff, I bought the lens for peanuts when I got my first DSLR (the A350) thinking it would nicely complement the 18-70 kit lens. As it didn't work it ended up in a drawer until recently, when I put it on my A58 on the off chance.

After posting my comment I decided to give the lens a bit of a work out and have to agree it's not bad at all on APS-C. If anyone is short of cash and wants a telezoom to complement their kit lens they could do worse.


Edited by Phil Wood - 26 March 2018 at 11:56
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neilt3 View Drop Down
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 26 March 2018 at 11:55
Originally posted by Phil Wood Phil Wood wrote:

Originally posted by overeema overeema wrote:

Originally posted by Phil Wood Phil Wood wrote:

I have a Sigma lens which is not in the database - an old 60-200mm f4/5.6 zoom. Works fine with my A58 but the A350 doesn't recognise that it's there.

It's a push/pull zoom which doesn't really creep - it runs.

This is weird. Some Sigma lenses are known to have SLT issues, but I never heard any DSLR to have any issues with any A-mount lens, except focus hunting.
Are you sure there is not any kind of malfunctioning involved?


Obviously something is not quite right - but I have tested the lens on two A350 bodies and two A58s - neither A350 recognises its presence both A58s are quite happy with it. I'm not sure what could be faulty to cause this to occur?



It's not a fault , Sigma backward engineered everything from day one .
A lens works fine with camera bodies made before the lens was made and sometimes nothing after .

I have/had some Sigmas that worked with the first Minolta 7000AF but nothing after .
Not a film camera , not a Minolta SLR and not a Sony SLR .
Likewise some later ones are the same , works fine with camera bodies up to the date the lens was made , and nothing after .

Not a fault of either the camera or lens , the firmware just compatible .
Sigma wouldn't pay Minolta or Sony for the required information/protocols needed .
Third party venders like Tamron didn't have this problem .


Try loading Mac only software in a Windows P.C and see what happents .

Now the strange thing is that some of the very old Sigma stuff works fine on some or all Sony SLT's .
I have a Sigma 1.6x manual focus lens to autofocus body in A mount sold for the Minolta 7000AF .
Two types were made , one was for Nikon F manual focus lenses to A mount body , and one was Minolta SR mount to Minolta A mount .
The lens element in the teleconverter moves bacward and forwards to achieve focus .
So a manual focus lens became auto focus .

I have both versions ( and the Nikon F mount 1.6x AF teleconverter they were copied from) and although they only work with the first generation of Minolta AF film bodies and nothing later , or the earlier Sony DSLR's , they work grate with my Sony SLT's ( a37 & a77).

Strange .

It's still pot luck what old and older Sigma lenses will work with Minolta/Sony SLR's , DSLR's and SLT's due to either firmware issues of mechanical issues they had with the aperture linkage on the first few SLT's .

I tend to avoid Sigma like the plague !
There's only a few I haven't got rid off .
   

Edited by neilt3 - 26 March 2018 at 11:58
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 26 March 2018 at 12:27
Originally posted by neilt3 neilt3 wrote:

Originally posted by Phil Wood Phil Wood wrote:

Originally posted by overeema overeema wrote:

Originally posted by Phil Wood Phil Wood wrote:

I have a Sigma lens which is not in the database - an old 60-200mm f4/5.6 zoom. Works fine with my A58 but the A350 doesn't recognise that it's there.

It's a push/pull zoom which doesn't really creep - it runs.

This is weird. Some Sigma lenses are known to have SLT issues, but I never heard any DSLR to have any issues with any A-mount lens, except focus hunting.
Are you sure there is not any kind of malfunctioning involved?


Obviously something is not quite right - but I have tested the lens on two A350 bodies and two A58s - neither A350 recognises its presence both A58s are quite happy with it. I'm not sure what could be faulty to cause this to occur?



It's not a fault , Sigma backward engineered everything from day one .
A lens works fine with camera bodies made before the lens was made and sometimes nothing after .

I have/had some Sigmas that worked with the first Minolta 7000AF but nothing after .
Not a film camera , not a Minolta SLR and not a Sony SLR .
Likewise some later ones are the same , works fine with camera bodies up to the date the lens was made , and nothing after .

Not a fault of either the camera or lens , the firmware just compatible .
Sigma wouldn't pay Minolta or Sony for the required information/protocols needed .
Third party venders like Tamron didn't have this problem .


Try loading Mac only software in a Windows P.C and see what happents .

Now the strange thing is that some of the very old Sigma stuff works fine on some or all Sony SLT's .
I have a Sigma 1.6x manual focus lens to autofocus body in A mount sold for the Minolta 7000AF .
Two types were made , one was for Nikon F manual focus lenses to A mount body , and one was Minolta SR mount to Minolta A mount .
The lens element in the teleconverter moves bacward and forwards to achieve focus .
So a manual focus lens became auto focus .

I have both versions ( and the Nikon F mount 1.6x AF teleconverter they were copied from) and although they only work with the first generation of Minolta AF film bodies and nothing later , or the earlier Sony DSLR's , they work grate with my Sony SLT's ( a37 & a77).

Strange .

It's still pot luck what old and older Sigma lenses will work with Minolta/Sony SLR's , DSLR's and SLT's due to either firmware issues of mechanical issues they had with the aperture linkage on the first few SLT's .

I tend to avoid Sigma like the plague !
There's only a few I haven't got rid off .
   

Interesting, thanks. Apart from the 60-200 the only Sigma I have is the 170-500, which works fine on the A350 and A58. Lucky I guess!
 



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overeema View Drop Down
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Post Options Post Options   Quote overeema Quote  Post ReplyReply Direct Link To This Post Posted: 26 March 2018 at 16:43
Originally posted by neilt3 neilt3 wrote:


It's not a fault , Sigma backward engineered everything from day one .
A lens works fine with camera bodies made before the lens was made and sometimes nothing after .

I have/had some Sigmas that worked with the first Minolta 7000AF but nothing after .
Not a film camera , not a Minolta SLR and not a Sony SLR .
Likewise some later ones are the same , works fine with camera bodies up to the date the lens was made , and nothing after .

Not a fault of either the camera or lens , the firmware just compatible .
Sigma wouldn't pay Minolta or Sony for the required information/protocols needed .
Third party venders like Tamron didn't have this problem .
---snip---

I tend to avoid Sigma like the plague !
There's only a few I haven't got rid off .
   


Another consideration to not mixup Sigma with other brands on your camerabag is that the zoom and distance rings turn in the opposite direction. If you are used to Sony/Minolta/Tamron turning a ring right has the same effect on all lenses. Sigma must be turned left to get the same result. I don't know about other brands.
minolta owner since 1969;A350-CZ1680-G70300-Tamron60F2-Minolta100F2-35105-28135-50F1.7; NEX6-E1650-E18105G (& 5 x minolta MC/MD)
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 03 June 2018 at 20:00
Originally posted by overeema overeema wrote:


Another consideration to not mixup Sigma with other brands on your camerabag is that the zoom and distance rings turn in the opposite direction. If you are used to Sony/Minolta/Tamron turning a ring right has the same effect on all lenses. Sigma must be turned left to get the same result. I don't know about other brands.


I hadn't even noticed that! But I did notice that I omitted another lens I have the Sigma 10-20mm EX DC, which is fine with A350 and A58.

I just checked the four lenses I have with me - all, including the Sigma 10-20 zoom in the same manner, the Sony (18-250) and Tamron (16-300) focus clockwise (viewed from back of camera). The Sigma and Minolta (100-300) anticlockwise. When I get home I shall check some others.
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 03 June 2018 at 21:08
Originally posted by Phil Wood Phil Wood wrote:

The Sigma and Minolta (100-300) anticlockwise.
My 100-300APO turns the same direction as my other Minolta and Sony zooms. My Canon lenses turn the opposite direction (so, just like the Sigmas).
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Post Options Post Options   Quote Cliff Quote  Post ReplyReply Direct Link To This Post Posted: 04 June 2018 at 03:55
Phil Wood wrote: "Interesting, thanks. Apart from the 60-200 the only Sigma I have is the 170-500, which works fine on the A350 and A58. Lucky I guess!"

I've got one of those old 60-200s. There are not many of them around. FWIW, mine works with A65 and LA-EA2,3&4 on A7II and A6500.

There was discussion around here years ago that older Sigmas with serial numbers beginning with 2 generally worked well on Sony A mounts and that serial numbers starting with 1 often did not. My own experience was that the A100 was a little picky about which non Minolta/Sony lenses worked, and that later cameras nave been progressively more tolerant.
Contax RF, Minolta7000i, Sony A100, A65, Nex5T, A7ii, A6500. 2 many lenses, mostly ordinary Minolta & 3rd party A, MC/D, other mf, vintage Vivitars & cats, LA-EA2,3,4 E16-50&55-210mm
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 27 December 2019 at 13:11
Interesting lens on ebay - a VOIGTLÄNDER ULTRON AF 28-105 2.8/3.8, as it's not on the Dyxum database I thought I'd mention it.

It's a push-pull zoom, presumably dating back to the 1980s - I'd put in a bid, but the price is too high for a curiosity buy. The pictures are clearly of an A mount and it is being sold with two hoods, as if there was one for the long end and one for the shorter FLs - though I find that hard to believe.

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Post Options Post Options   Quote momech Quote  Post ReplyReply Direct Link To This Post Posted: 27 December 2019 at 15:03
Google finds a number of references to it. Including Dysum:

https://www.dyxum.com/dforum/voigtlander-28105-f2-83-8_topic92720.html
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 27 December 2019 at 15:07
That one is mentioned before, both the Voigtlander branded version and the Cosina version. On Pentaxforums there is an entry for this lens.
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 27 December 2019 at 18:48
Interesting links - it seems that opinions on the lens vry from decent to dreadful.
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