« Teleconverters designed exclusively for L-Mount lenses»
and from the footnotes
« * About Sony E-mount：We develop lenses based on the E-mount specifications disclosed by Sony Corporation under a license agreement with Sony Corporation. Therefore, we do not develop accessories that are not based on it.»
This sounds disappointing to me. The Sony 100-400 GM is more expensive, but on the other hand it takes TCs. It will be interesting to see what Tamron will do. Will they make 100-400mm and 150-600mm mirrorless lenses and offer TCs for them.
p.5 #4 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
Surprisingly, the only Youtube reviewers I trust got early copies of this lens and all three really like it compared to both the Sony and Canon equivalents. The Sigma got a "highly recommended" from Chris Frost, which is reserved for only the best lenses coming out of his reviews.
« Teleconverters designed exclusively for L-Mount lenses»
and from the footnotes
« * About Sony E-mount：We develop lenses based on the E-mount specifications disclosed by Sony Corporation under a license agreement with Sony Corporation. Therefore, we do not develop accessories that are not based on it.»
This sounds disappointing to me. The Sony 100-400 GM is more expensive, but on the other hand it takes TCs. It will be interesting to see what Tamron will do. Will they make 100-400mm and 150-600mm mirrorless lenses and offer TCs for them.
Tamron is rumored to be working on a 200-400 f4. That is more interesting to me than this Sigma. Which I'll say again looks like they added an adaptor to the end.
p.5 #7 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
JayPhoto1 wrote:
Surprisingly, the only Youtube reviewers I trust got early copies of this lens and all three really like it compared to both the Sony and Canon equivalents. The Sigma got a "highly recommended" from Chris Frost, which is reserved for only the best lenses coming out of his reviews.
Chris Frost:
Dustin Abbott:
Gordan Laing:
It does certainly seem that you get 90-95% of the GM's quality for less than half the price. Featureset is something that one can argue about (like TCs and minimum focus distance) but on paper the Sigma is really nice.
p.5 #8 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
AZHeaven wrote:
Tamron is rumored to be working on a 200-400 f4. That is more interesting to me than this Sigma. Which I'll say again looks like they added an adaptor to the end.
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AZHeaven wrote:
To me it looks like the DSLR version with an adapter on the end.
Don't know what to tell you. I mean they had an hour-long presentation on the challenges they faced rebuilding this lens from the ground up in order to take advantage of mirrorless cameras so no, it doesn't look like they slapped an adapter to the end and called it a day.
Don't know what to tell you. I mean they had an hour-long presentation on the challenges they faced rebuilding this lens from the ground up in order to take advantage of mirrorless cameras so no, it doesn't look like they slapped an adapter to the end and called it a day.
I don't think there was much challenge optically since flange distance between SLR and mirrorless is not an issue with super teles. However, the addition of a linear motor, other hardware changes and optical design tweak (with one extra element and all) definitely required some changes in the formula. So, yes, it doesn't look like what Samyang and Sigma did with their SLR lenses adapted to Sony.
p.5 #12 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
arbitrage wrote:
Did Sigma make any mention of the Sony TCs being compatible with the lens? If not, then I'll stick with my Sony 100-400.
Nope, they careful skirted their way around that and on the website it doesn't mention it either. The reviews that came out today also didn't mention anything of the sort. It's all still very vague. Sigma should have mentioned something, whether or not it flat out won't work or if they will be releasing Sony E mount TCs at a later date.
p.5 #13 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
An article B&H published today claims the L-mount version is indeed compatible with the TCs:
"When paired with the new 100-400mm, the T-1411 turns the lens into an effective 140-560mm f/7-9 and the TC-2011 produces an effective 200-800mm f/10-12.6 range. Both teleconverters fully maintain AF, AE, and OS functions as well as transfer Exif data"
p.5 #15 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
jwpstl wrote:
An article B&H published today claims the L-mount version is indeed compatible with the TCs:
"When paired with the new 100-400mm, the T-1411 turns the lens into an effective 140-560mm f/7-9 and the TC-2011 produces an effective 200-800mm f/10-12.6 range. Both teleconverters fully maintain AF, AE, and OS functions as well as transfer Exif data"
Yeah because they made L-mount TCs. We are talking about using Sony's TCs on the Sigma lens because Sigma said they aren't making E-mount TCs.
It has an array of low-dispersion glass that helps to reduce color fringing and chromatic aberrations throughout the zoom range, as well as realize accurate color and reduce flaring. Among other features, one of the most welcome will be the inclusion of optical image stabilization, which compensates for up to four stops of camera shake. This OS system can be used in conjunction with camera-based in-body image stabilization, too, for even more robust support to aid making sharp handheld images.
Features:
As part of the Contemporary line within Sigma's Global Vision series, this lens is designed to achieve a balance between convenience and performance, and meshes a compact, lightweight build and versatile handling with notable optical attributes.
Telephoto zoom is designed for full-frame Sony E-mount mirrorless cameras, but can also work with APS-C models where it provides a 150-600mm equivalent focal length range.
One F Low Dispersion (FLD) element and four Special Low Dispersion (SLD) elements markedly reduce chromatic aberrations and color fringing throughout the zoom range for improved clarity and color accuracy.
Optical image stabilization compensates for up to four stops of camera shake to help realize sharp imagery when shooting handheld with slower shutter speeds.
Integrated stepping motor realizes quick and quiet autofocus, which is further complemented by an optimized AF algorithm to produce smoother focusing performance.
At the 100mm end of the zoom range, a minimum focusing distance of 3.7' is available, and at the 400mm end, the minimum focusing distance is 5.2' with a maximum magnification of 1:4.1.
Integrated AFL button can be programmed to adjust various shooting settings and the lens also features a focus limiter switch for faster focusing performance within certain distance ranges. There is a zoom lock switch to prevent the barrel from accidentally extended.
Rounded 9-blade diaphragm contributes to a pleasing bokeh quality.
Brass bayonet affords improved mounting accuracy and rigidity and rubber sealing is incorporated in the mount's design to render it dust- and splash-resistant.
Compatible with optional TS-111 Tripod Socket for working atop a tripod or monopod; the included PT-31 Protective Cover can be attached to the lens to maintain a seamless appearance if the tripod socket is not used.
p.5 #17 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
I may end up getting this. I had the DSLR version and liked it, but sold it for the 150-600. However, with the old lens, it was a little weaker at 400mm than this one appears to be, and I'm thinking that cropped 400mm might actually be just as sharp as native 600mm on the 150-600mm on my A7R IV....and it's a lot more convenient to carry around and use, not to mention the massive AF improvements that we'd have vs. the adapted lens.
p.5 #19 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
To me the biggest question is how fast the AF on Sigma going to be at long end. I have DSLR version with MC-11 and it was driving me nuts because it was noticeably slower than all my other lenses. I ended up buying Sony 100-400 and TC 1.4 and never looked back. I have no complaints about IQ on Sigma, just AF speed. If there is an improvement on mirrorless version, then it will be incredible bargain.
p.5 #20 · Pre-order: Sigma 100-400/5-6.3 DG DN OS FE ($949!)
samosh wrote:
To me the biggest question is how fast the AF on Sigma going to be at long end. I have DSLR version with MC-11 and it was driving me nuts because it was noticeably slower than all my other lenses. I ended up buying Sony 100-400 and TC 1.4 and never looked back. I have no complaints about IQ on Sigma, just AF speed. If there is an improvement on mirrorless version, then it will be incredible bargain.
From the available information at this moment the trade off seems to be more about TC capatibility than AF speed. All the reviews have noted that AF speed and accuracy are slightly below the GM, but not far behind at all. Sigma seem to have made great leaps when it comes to AF speed compared to that DSLR design they had.
It's really quite an interesting proposition for potential buyers I would think. Do you want the cheapest and the most light weight or do you want compatibility and slightly enhanced features for ~1500 USD more. It's going to be a tough question for some people that don't already have an option in this focal range.
