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Sigma 1000mm f8 APO

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ffrolvaag View Drop Down
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Post Options Post Options   Quote ffrolvaag Quote  Post ReplyReply Direct Link To This Post Topic: Sigma 1000mm f8 APO
    Posted: 09 January 2019 at 01:46
After years of searching I finally found and purchased a Sigma 1000mm f8 APO. The last time I saw one for sale in A-mount was about 10 years ago, so I decided to pull the trigger on this one (although certainly not 100%). Despite what it says in the lens database, it is an AF lens. Once I am able to better check out the lens, I will post an update here, and put in a review on the lens database.

By way of a size comparison, below is a picture of the lens compared to a 70-400mm G fully extended, 300mm f2.8, and 70-200 f2.8.



Sadly, it is too dark to use today, and no moon (too overcast). More to come...

Franz



a900, a700, 5600hs, 1200 (w/MFC-1000), 3x converted f1.2 (Rokkor 58, Nikon 50 ais, and Pentax 50), 85mm f1.4, 100mm f2.8, 70-400G, and way too much other stuff to mention
 



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C_N_RED_AGAIN View Drop Down
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Post Options Post Options   Quote C_N_RED_AGAIN Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 01:59
That is awesome. Good catch. Would love to hear how it performs. I'm guessing there were very few made?
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mambo View Drop Down
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Post Options Post Options   Quote mambo Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 03:41
Congrats of the find of the decade. I too, am keento see how it performs.



Charles
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A99,A77ii, Minolta:600 f4HS|300f2.8|200f2.8HS|85G|SAL50f1.4Z|SAL24F2Z|∑35f1.4Art|50f2.8macro|Tamron 180f3.5|
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Post Options Post Options   Quote WestCoastCannuck Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 04:10
Cool!! Never heard of the beastie - right up my alley! lol

I will admit, I am VERY curious how it would stand up to the 300/2.8 with a Kenko Pro 3X TC. (900mm/F8.) Which I have found to be pretty sharp!

I look forward to hearing about how it performs.

Congrats! and have fun!

Mike
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A99ii|A77ii|Tam15-30|ZA24-70|M28-135|M35-105|M80-200G|SAL70400G|Σ50 1.4|ZA135|200F2.8HS G|300F2.8HS G|400/4.5|APOii1.4XTC|APOii2XTC
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Post Options Post Options   Quote SnowFella Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 07:36
Got to be a unicorn of a lens! Not a single review or person that claims to of owned one in the database yet!
Be interesting to see what focus points AF works with, the only other F8 lens there is, 500 reflex, only works with the center point unless you go A99II and re-chip the lens.

Even a SAL500 with a 2x TC, reporting 1000mm F/8 will have a Sony body refuse to AF.
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Post Options Post Options   Quote Hobgoblin Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 08:36
I recall reading an article in a magazine (can't remember which one) about 10 years ago on this lens. It got quite a good review and if i recall correctly it can AF quite well (was on a nikon or canon though) - I seem to remember that it did so by reporting itself as an f5.6 rather than an f8. Perhaps it used same chip as the 800mm f5.6?

 



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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 12:12
Best not to try using it by an airfield. Looks too much like a bazooka!

I have played with lenses this long many times, and I have found the cheap ones to have much inferior resolution to the shorter ones. I've always surmised this to be due to the greater requirement for exact curvature on a weak (long focus) lens element compared with a short one, but arguably the diameter to focal length ratio is also a factor, so fast long lenses are better than slow ones (plus they're always premium products so get more care in the design and manufacture).
Miranda F & Sensorex, Sony A58, 5d, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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Post Options Post Options   Quote ffrolvaag Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 12:40
I have done quite a bit of reasearch on this lens, but information on it is scarce. It is difficult to confirm any facts on product history, so at best letís assume that the information I have gathered is not 100% accurate. From what I can find, the lens likely had a couple of different versions and was launched in 1989 and then again in 1992, and was produced until 1998. The original version was an all MF lens, and then the later was a AF lens. At best production numbers are very low considering the original cost and how few web hits there are on this lens. From what I gather the majority of thos produced seem to be either Canon or Nikon mount. It was also made in Sigma and Minolta mounts. All AF versions appear a screw drive lens and while AF capable, may not have been able to AF on all bodies.

I see different MSRPs that range between 3000 - 6000 GBP, and that could have correlated to the different versions. Regardless, it definitely was not a cheap lens for its time, and I would say construction is right up there with a my Minolta 300m f2.8.

It is very heavy at 5.5 Kg (12 lbs) and not something to hand hold.

Although I havenít fully tested it, the original owner told me that the lens is very sharp, but we will see. It will be difficult to make sure that everything is rock stable when taking photos since a small vibration will make it appear as a lack of resolution.

The lens has a rear 34mm filter like the Minolta 300mm f2.8 and can also hold a front filter. I have seen the front filter listed as 134mm or 137mm, but I will need to confirm measurements on my lens. Not that I am likely to find either, as I assume that those filters are as or more rare than the lens.

More to come...
Franz



a900, a700, 5600hs, 1200 (w/MFC-1000), 3x converted f1.2 (Rokkor 58, Nikon 50 ais, and Pentax 50), 85mm f1.4, 100mm f2.8, 70-400G, and way too much other stuff to mention
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Post Options Post Options   Quote owenn01 Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 12:55
That's going to stand out in a crowd!

Looking forward to seeing how it performs as well....

Good luck and best regards, Neil.
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 14:00
Originally posted by SnowFella SnowFella wrote:

Got to be a unicorn of a lens! Not a single review or person that claims to of owned one in the database yet!
Be interesting to see what focus points AF works with, the only other F8 lens there is, 500 reflex, only works with the center point unless you go A99II and re-chip the lens.

Even a SAL500 with a 2x TC, reporting 1000mm F/8 will have a Sony body refuse to AF.

I am sure cameras recognize the Lens ID of the 500 F8 and disable the other AF points.

All refractive F4 lenses have fully working AF on all the generic chipped 2X teleconverters on all the bodies I've tried. The AF isn't great, but it works and is not limited to just the center point.

Edited by QuietOC - 09 January 2019 at 14:21
A68 30M 35 50 60M 16-50 16-80 18-55 18-70 18-135 55-200 55-300
A6000 LA-EA1 6.5 16 20 30 50 60 16-50 18-55 55-210
600si: 20 24 28 50 100M 135 24-85 24-105 28-105 35-70 35-105 70-210 75-300 100-200
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Post Options Post Options   Quote Basil Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 16:13
Wow!!!! It looks like it is a double-sized copy of my Sigma 500/4.5 of that same generation. That is quite the find. I have been looking for one myself for a while. May I ask where you found it?

A little rubbing alcohol on a clean white rag gets rid of that peeling Zen coating residue quite nicely. Just be sure to wear gloves when you do it. I know this from experience.
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Post Options Post Options   Quote stiuskr Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2019 at 18:34
I have no experience at all shooting at such extreme focal lengths but it seems like you'd get best results in the field with manual focussing. And yeah, a rock solid tripod and head will be a must but a nice fat bean bag would work well too, especially for testing.
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Post Options Post Options   Quote ffrolvaag Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2019 at 01:40
I did a little bit of testing tonight. To confirm, AF will work on any body in the Sony / Minolta lineup I have. I tested the a99ii, a900, a700, 5d, and yes even the Minolta RD175. All would AF (no AF lock due to it being dark). Still too dark here to do any meaningful tests, so probably canít do an substantive testing until the weekend on sharpness, focus points, accuracy etc.

One other note of complication is that the MFD is 15 meters (yeah 50 feet!!!). As a result I cant even test it indoors.
Franz



a900, a700, 5600hs, 1200 (w/MFC-1000), 3x converted f1.2 (Rokkor 58, Nikon 50 ais, and Pentax 50), 85mm f1.4, 100mm f2.8, 70-400G, and way too much other stuff to mention
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Post Options Post Options   Quote ffrolvaag Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2019 at 01:42
Originally posted by Basil Basil wrote:

May I ask where you found it?


I will send you a PM.
Franz



a900, a700, 5600hs, 1200 (w/MFC-1000), 3x converted f1.2 (Rokkor 58, Nikon 50 ais, and Pentax 50), 85mm f1.4, 100mm f2.8, 70-400G, and way too much other stuff to mention
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