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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 Posted: 10 January 2019 at 01:44
Originally posted by stiuskr stiuskr wrote:

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.


I agree, MF will probably be the best policy with something this long. The AF like many longer lenses isnít that fast even with the a99ii. However, I will be curious to see how accurate AF is at that distance and how much hunting it will do in proper light.
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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QuietOC View Drop Down
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2019 at 00:51
Listing in the 1993 Sigma Lens Catalog:

APO 1000mm F8 Zen

World's first autofocus 1000mm super telephoto lens offering sharp images and excellent maneuverability.

The Sigma APO 1000mm F8 ZEN is the world's first autofocus 1000mm super telephoto lens and the smallest in its class. It lets you fully enjoy the world of super telephoto potography[sic] including shooting closeups of distant panoramas, and delivers startling "compressed" perspective effects as well. Its internal focusing system enables you to respond quickly to your subject to shoot newspaper type action photos: outdoor sports, and wildlife. Chromatic aberration, which is characteristic of a super telephoto lens, has been reduced to a minimum by using special optical design and two pieces of SLD (Special Low Dispersion) glass for the front elements. This provides sharp, clear images at every aperture. It uses rear insertion type filters that can be changed in a moment. The exclusive "ZEN" matte finish provides a sure grip, prevents reflections and resists scratches.

Corresponding AF Mount: Sigma Mount, Minolla Mount, Nikon Mount and Canon Mount.
Sony A7RIV NEX-5T HVL-F45RM LA-EA3 LA-EA4r MB-IV MC-11 EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
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krabster View Drop Down
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Post Options Post Options   Quote krabster Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2019 at 13:08
Nice catch.
As have been mentioned already, the use of these lenses comes with a lot of limitations. It sure is not a walk around lens . Only to use with a sturdy (and expensive) tripod. In low light almost unusable, and most of the time no AF.
There is someone on Flickr with some testshots. I was not impressed by the sharpnes of the pictures. And the pictures looked a bit soft to me. In warm and bright conditions the vibration of the air begins to kick in and causes unsharp pictures.
But a sure like to own one !!
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Post Options Post Options   Quote photoracer18 Quote  Post ReplyReply Direct Link To This Post Posted: 09 June 2021 at 22:36
I used to own and use a copy of the later model Sigma 1000mm F8 APO. This was in the 90's when I was shooting Minolta Alpha lenses with the Maxxum 9 film SLR. I am surprised to hear that you consider it weak in low light. It works better with an AF film SLR than a DSLR due to less light getting to the AF sensor in a DSLR. Maxxum 9 only had 3 AF points yet it could easily follow race cars with one of the best performing predictive AF systems of its time. I have a sequence of C-AF images filmed at an IMSA race in the 90's at Summit Point WV when I was standing next to a crew member from Jack Roush Motorsports with a radar gun in qualifying when Pete Halsmer crested the rise in the middle of the 3/4 mile main straight in one of Jack's Mercur XR4Ti turbo cars (Sierra RS Cosworth to you Euro guys) flat out towards where we were standing near Turn 1, a 50 MPH turn. The radar gun hit 168 MPH yet every frame was in focus up until under braking he got too close in the VF. I used one of the bigger Bogen monopods with that lens, the one than has the three rods as legs you can pull out to stabilize it. It was also the only lens I ever owned that was capable of getting AF focus lock on the planet Jupiter. Once at the the bird sanctuary at Bosque del Apache in New Mexico I captured low light images of coyotes scavenging dead Snow Geese where the workers laid them out. It was so dark you could hardly pick the coyotes out with the naked eye. I also had shots of Harriers (big hawks) against the afterglow of the already set Sun.
But the lens is not for everyone. I had mine till the digital era and it took so long for Minolta to bring out a DSLR I switched brands before they did. The story of how I got the lens is another tale in itself.
Kent Gittings
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