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#1
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No 12mm rectilinear FF lens?
I was browsing photozone.de and couldn't find any full-frame rectilinear
12mm lens. The widest was 14mm. Why is that the case? In the APS-C world there is the Sigma 8-16, which has an equivalent FF focal length of 12mm. A bit strange that for APS-C there are wider rectilinear lenses than for FF. -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#2
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No 12mm rectilinear FF lens?
On 2014-11-24 20:57:12 +0000, Alfred Molon said:
I was browsing photozone.de and couldn't find any full-frame rectilinear 12mm lens. The widest was 14mm. Why is that the case? I own a full frame rectilinear 12mm lens, the first of its kind. The Voigtlander Heliar 12mm f/5.6 Aspherical. It's a rangefinder (Leica screw mount) lens which won't work on an SLR though. Looks like Photozone needs to get with the program - I bought it a decade ago! ["https://www.cameraquest.com/voigtlen.htm"] In the APS-C world there is the Sigma 8-16, which has an equivalent FF focal length of 12mm. A bit strange that for APS-C there are wider rectilinear lenses than for FF. Not really because with the APS-C format you can design the rear element of a lens closer to the image plane, which turns out to be pretty crucial with super-wide lenses. A full frame SLR's mirror would probably smash itself into pieces against the Sigma lens you mention. |
#3
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No 12mm rectilinear FF lens?
On 2014-11-24 20:57:12 +0000, Alfred Molon said:
The widest was 14mm. Oh, I forgot to mention: Nikon made a 13mm rectilinear lens. It was only available special order was much larger than their biggest F camera, and cost as much as a car. |
#4
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No 12mm rectilinear FF lens?
On 25/11/2014 9:57 a.m., Alfred Molon wrote:
I was browsing photozone.de and couldn't find any full-frame rectilinear 12mm lens. The widest was 14mm. Why is that the case? In the APS-C world there is the Sigma 8-16, which has an equivalent FF focal length of 12mm. A bit strange that for APS-C there are wider rectilinear lenses than for FF. Not really correct as Sigma have made a rectilinear FX 12-24 lens for a long time, even updated it a few years ago to a new version. It's tested on Photozone (on Canon 5D II full-frame camera). Most lenses (even primes) at this extreme focal length suffer from either/and field curvature, wavy or considerable barrel distortion, softness on the edges, CA, as well as flare - exacerbated by the large bulbous front element on fast (ie F2.8) lenses, and the practical difficulty on shooting outdoors without the sun in the frame. As a Dx and FX user, IMO FX has a massive advantage over DX at these focal lengths. The Nikkor 18-35 G is less expensive than the Nikkor DX 12-24, it weighs about the same, covers approx the same field of view, but is much, much sharper. Nothing on DX format comes close, and for more $, the 14-24 Nikkor optical performance steps up another level. The Sigma 8-16 DX lens is extreme and unique (as is the Sigma FX 12-24). The widest alternatives are Nikkor/Tamron co-designed 10-24, and Sigma 10-20, with widest "equivalent" focal length of 15mm. |
#5
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No 12mm rectilinear FF lens?
In article , Alfred Molon wrote:
I was browsing photozone.de and couldn't find any full-frame rectilinear 12mm lens. The widest was 14mm. Why is that the case? In the APS-C world there is the Sigma 8-16, which has an equivalent FF focal length of 12mm. A bit strange that for APS-C there are wider rectilinear lenses than for FF. -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site Well, you've got the Nikkor 13mm f/5.6 If you find one, prepare to pay $10K for one in good shape. -- Sandman[.net] |
#6
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No 12mm rectilinear FF lens?
On 24/11/2014 11:48 μμ, Oregonian Haruspex wrote:
On 2014-11-24 20:57:12 +0000, Alfred Molon said: I was browsing photozone.de and couldn't find any full-frame rectilinear 12mm lens. The widest was 14mm. Why is that the case? I own a full frame rectilinear 12mm lens, the first of its kind. The Voigtlander Heliar 12mm f/5.6 Aspherical. It's a rangefinder (Leica screw mount) lens which won't work on an SLR though. Looks like Photozone needs to get with the program - I bought it a decade ago! ["https://www.cameraquest.com/voigtlen.htm"] In the APS-C world there is the Sigma 8-16, which has an equivalent FF focal length of 12mm. A bit strange that for APS-C there are wider rectilinear lenses than for FF. Not really because with the APS-C format you can design the rear element of a lens closer to the image plane, which turns out to be pretty crucial with super-wide lenses. A full frame SLR's mirror would probably smash itself into pieces against the Sigma lens you mention. by looking at it, it's no wonder it costs an arm and a leg!!but surely you can take amazing photos with it, despite all its aberations.is that the M42 mount, which had my soviet Zenit? On later Zenits they had the pentax K-2 mount. I had an 28 mm wide, a normal 50 mm and a 120 mm tele IIRC.They were quite good, altough nothing to do with my Nikkor 50mm1.4, sigma 24 mm2.5 and tamron 70-210 zoom!!although the tamron was quite crappy. |
#7
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No 12mm rectilinear FF lens?
In article , Alfred Molon wrote:
I was browsing photozone.de and couldn't find any full-frame rectilinear 12mm lens. The widest was 14mm. Why is that the case? In the APS-C world there is the Sigma 8-16, which has an equivalent FF focal length of 12mm. A bit strange that for APS-C there are wider rectilinear lenses than for FF. -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site http://www.bhphotovideo.com/c/product/755357-REG/Sigma_204101_12_24mm_F4_5_5_6_EX_DG.html -- Sandman[.net] |
#8
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No 12mm rectilinear FF lens?
In article , Me says...
the practical difficulty on shooting outdoors without the sun in the frame. What's wrong in having the sun in the frame? As a Dx and FX user, IMO FX has a massive advantage over DX at these focal lengths. The Nikkor 18-35 G is less expensive than the Nikkor DX 12-24, it weighs about the same, covers approx the same field of view, but is much, much sharper. Nothing on DX format comes close, ..... The Sigma 8-16 DX lens is extreme and unique (as is the Sigma FX 12- 24). Yes exactly, the Sigma 8-16 beats the Nikkor 18-35. -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#9
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No 12mm rectilinear FF lens?
On 26/11/2014 11:05 a.m., Alfred Molon wrote:
In article , Me says... the practical difficulty on shooting outdoors without the sun in the frame. What's wrong in having the sun in the frame? Nothing wrong with it, but flare and ghosting can be a problem. Some lenses perform better than others. The large bulbous exposed front element on lenses like the Sigma 8-16 or Nikkor 14-24 can be a problem if the sun isn't in the frame - but hits the front element. As a Dx and FX user, IMO FX has a massive advantage over DX at these focal lengths. The Nikkor 18-35 G is less expensive than the Nikkor DX 12-24, it weighs about the same, covers approx the same field of view, but is much, much sharper. Nothing on DX format comes close, .... The Sigma 8-16 DX lens is extreme and unique (as is the Sigma FX 12- 24). Yes exactly, the Sigma 8-16 beats the Nikkor 18-35. No -it's just wider - same as the 12-24 on FX. It also can't be fitted with a protective filter, and every review I've read of it comments on decentering issues. |
#10
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No 12mm rectilinear FF lens?
In article , Me says...
No -it's just wider - same as the 12-24 on FX. It also can't be fitted with a protective filter, and every review I've read of it comments on decentering issues. The Sigma comes with a big lens cap, so there is no need for a protective filter. Not sure what you mean with decentering issues. -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
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