I Laugh at Your Puny 500mm Lens: Sigma Bigma at 1,000mm
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Initial Test at 1,000 mm Sigma “Bigma” 50-500mm OS + Sigma 2.0X Teleconverter -- Kyoto, Japan -- Copyright 2010 Jeffrey Friedl, http://regex.info/blog/
Nikon D700 + Sigma “Bigma” 50-500mm OS @ 1000 mm — 1/1000 sec, f/13, ISO 1400 — full exif
Initial Test at 1,000 mm
Sigma “Bigma” 50-500mm OS + Sigma 2.0X Teleconverter

I've been busy busy busy with Lightroom plugin stuff and so haven't gotten much time to play with my new Sigma “Bigma” 50-500mm superzoom, but I wanted to post a few samples taken with the Sigma APO Teleconverter 2x EX DG attached, turning the Bigma into a 100-1,000mm f/9-f/13 zoom.

These aren't from a proper test... I just set the camera+teleconverter+lens's substantial mass on a table and pointed it out the open window, turned the lens' optical stabilization off, and fired off some shots....

1000mm wide open at f/13 a fair bit mushy -- Kyoto, Japan -- Copyright 2010 Jeffrey Friedl, http://regex.info/blog/
Nikon D700 + Sigma “Bigma” 50-500mm OS @ 1000 mm — 1/1000 sec, f/13, ISO 1600 — full exif
1000mm wide open at f/13
a fair bit mushy
1000mm at f/64 extremely mushy, but what do you expect at f/64? -- Kyoto, Japan -- Copyright 2010 Jeffrey Friedl, http://regex.info/blog/
Nikon D700 + Sigma “Bigma” 50-500mm OS @ 1000 mm — 1/125 sec, f/64, ISO 4000 — full exif
1000mm at f/64
extremely mushy, but what do you expect at f/64?

The viewfinder was surprisingly bright for f/9, though the out-of-focus areas had all kinds of annoying chromatic aberration when viewed through the viewfinder.... but not, thankfully, in the photos themselves.

A Nikon D700 does not autofocus a lens whose maximum aperture is smaller than f/5.6, so with the teleconverter it turns into a manual-focus only lens.

Still, I took the opportunity for some guy crossing the little bridge I can see from my window (seen at 200mm in the first shot of this post) to try an optical-stabilization-assisted on-the-fly shot, and all things considered, it came out okay...

Test Subject -- Kyoto, Japan -- Copyright 2010 Jeffrey Friedl, http://regex.info/blog/
Nikon D700 + Sigma “Bigma” 50-500mm OS @ 1000 mm — 1/1000 sec, f/13, ISO 2500 — full exif
Test Subject

As a bonus, the teleconverter turns the lens into an almost true macro, at 0.64× magnification. I'll have to give that a try soon.

Straight Up 500mm for comparison ( seems a bit fuzzy to me... maybe it's the subject? ) -- Kyoto, Japan -- Copyright 2010 Jeffrey Friedl, http://regex.info/blog/
Nikon D700 + Sigma “Bigma” 50-500mm OS @ 500 mm — 1/400 sec, f/6.3, ISO 400 — full exif
Straight Up 500mm
for comparison
( seems a bit fuzzy to me... maybe it's the subject? )

Continued here...


All 2 comments so far, oldest first...

If I get up on the roof of my building and wave, maybe can you see me from your roof with that lens.

— comment by nils on April 21st, 2010 at 12:28am JST (7 years, 2 months ago) comment permalink

I’ve been holding my breath waiting for reviews of this beast and appreciate your series. There is no way I can afford a Canon 500mm f/4 and I want a lens to use with my 7D for birding. How accurate and fast have you found the AF? Have you tried any birds-in-flight?
Any attempt by me of BIF would fail, and it wouldn’t be the lens to blame. AF seems okay, but I haven’t tested it a lot, but even at f/5.6, depth of field at 500mm is pretty thin, so I’m not sure you’d want to use AF anyway. —Jeffrey

— comment by icassell on April 22nd, 2010 at 7:14am JST (7 years, 2 months ago) comment permalink
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