p.10 #1 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
nhsonyshooter wrote:
I could meet you at the border
Just noticed that it came with a certificate for "7 years Canadian warranty for photographic lenses". So I guess that warranty wise I did the right thing with picking a local chain instead of B&H. Otherwise B&H has faster shipping, I ordered at the same time from them an UV filter and the Sony bluetooth remote and they arrived one day faster than the lens. Quite a feat since they had to go through customs too.
p.10 #2 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
vdo1 wrote:
Just noticed that it came with a certificate for "7 years Canadian warranty for photographic lenses". So I guess that warranty wise I did the right thing with picking a local chain instead of B&H. Otherwise B&H has faster shipping, I ordered at the same time from them an UV filter and the Sony bluetooth remote and they arrived one day faster than the lens. Quite a feat since they had to go through customs too.
Since moving to Sony the only lens that might sniff 7 years for me is the 100-400GM. Everything else is in a constant state of motion
p.10 #3 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
Nuts boka!!!
Nov 08, 2020 at 11:18 AM
osv2 Offline • • • • [X]
p.10 #4 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
BruceRH wrote:
I find it interesting all of the comments about focus speed. In my experience, macro lenses are never fast at auto focusing. Yes you can use it for other subjects but its main purpose is macro which is why it is not as snappy. Take a look at a MF macro lens and try focusing with that, you will see how much you have to move the elements.
sports and telephoto lenses have far bigger/more elements to move than any macro lens, and they are able to do it at up to 20fps af-c on the a9/a9ii.
so focus speed is a function of af motor selection/design, it's not the size or number of elements that matters, especially when you have a focus limit switch on the lens.
if there is any generalization to be made about macro glass, it's probably that macro lenses might be slower to rack focus from mfd to infinity... but that's hardly a concern for most shooting scenarios, and it's minimized by the focus limit switch.
recent sigma lenses, including the 135/1.8, will do up to 15fps af-c on the a9, they work great for shooting sports, i'm kind of surprised to hear that this sigma macro is slow to focus.
i've shot sports with the a9/fe90, it's good for up to 15fps af-c, so if focus speed is important, people should probably rent both of these lenses and see how it works in their specific situation.
as an example of what i'm talking about, every shot in this a9/fe90 sequence was in perfect focus:
p.10 #5 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
My opinion on this lens as I have been saying is that it is slower in focusing that than the newer lenses with the new motor technologies. It is not a slow focusing lens in absolute terms. As I have been saying, it will be fine in all but the fastest action scenarios. It would certainly be good for the volleyball situation you have shown. This is because the size of the playing field is not that big. The lens can very quickly focus in a range like that.
The only place I have seen where the focus is noticeably slow is focusing from near minimum focus distance to infinity, and vice versa. The focus limiting switch is used to keep that from happening.
I can also say that it is a very accurate focusing lens from what I have seen so far.
When it stops raining here I (rare thing to say in San Diego) I will go out with my a9 and shoot some action stuff with the lens.
p.10 #6 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
osv2 wrote:
i'm kind of surprised to hear that this sigma macro is slow to focus.
Sigma specifically addresses this on the product's presentation video, stating that they chose different focus motors (compared to their other recent lenses), which are optimized for accuracy over speed (given the lens optical formula).
Of course, I have no way to validate these claims, so it might also be true that these focus motors are also cheaper ... Still, if you hear on the official video that the lens is slow to focus, then it most likely is the case .
p.10 #7 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
A macro also tends to focus in finer steps than a telephoto or prime. All I am saying is if I want blazing AF performance, my choice would not be a macro lens.
Nov 08, 2020 at 03:11 PM
osv2 Offline • • • • [X]
p.10 #8 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
j4nu wrote:
Sigma specifically addresses this on the product's presentation video, stating that they chose different focus motors (compared to their other recent lenses), which are optimized for accuracy over speed (given the lens optical formula).
Of course, I have no way to validate these claims, so it might also be true that these focus motors are also cheaper ... Still, if you hear on the official video that the lens is slow to focus, then it most likely is the case .
this lens uses an hsm motor, all recent sigma lenses use hsm motors.
the video does not say that it's a different af motor... what's different is that the internal cam group is longer, which addresses the need to travel from a really short mfd to infinity, with this specific design(does it use a floating lens group?)
all macro lenses have to deal with that, and with the a9/fe90 it's not an issue even for sports use, although i do notice it from mfd to infinity, or even covering long distances like 40 yards.
many people have claimed that the fe90 has slow focusing, but you won't see that in real-world use... check out this long skateboarding sequence, full-size pics that are all in focus, on a target that's moving at least as fast as a person can run: https://www.dpreview.com/forums/post/61630683
best to rent and see how it works in specific scenarios.
EDIT: looks like this design does not use a floating lens group, like the fe90 and the sigma 70mm macro, which sigma specifically calls out on the 70mm macro web page.
the video does not say that it's a different af motor... what's different is that the internal cam group is longer, which addresses the need to travel from a really short mfd to infinity, with this specific design(does it use a floating lens group?)
all macro lenses have to deal with that, and with the a9/fe90 it's not an issue even for sports use, although i do notice it from mfd to infinity, or even covering long distances like 40 yards.
many people have claimed that the fe90 has slow focusing, but you won't see that in real-world use... check out this long skateboarding sequence, full-size pics that are all in focus, on a target that's moving at least as fast as a person can run: https://www.dpreview.com/forums/post/61630683
best to rent and see how it works in specific scenarios.
EDIT: looks like this design does not use a floating lens group, like the fe90 and the sigma 70mm macro, which sigma specifically calls out on the 70mm macro web page.
Yes, indeed it's not the change to motor itself but the "cam group" / barrel that is longer than usual to allow for more precision at the cost of speed:
?t=1092
I'm just not expecting it to focus as fast as 85mm dg dn for example...
I'm also interested in this lens, still fighting myself on this one (though I think my common sense is slowly starting to give in to GAS ) . I'm also still wondering on the actual real life differences between the Sigma and the Sony (as I found an offer on a used one for the same price as a new Sigma)... I don't mind MF for this kind of usage so I was also thinking of Laowa 100mm, where 2:1 is tempting but the weird constructrion (uv filter / grease) is putting me off. Decisions, decisions (also I'm not sure if the difference between 1:2, which I currently have covered in my lineup, and 1:1 will be that striking) ...
the video does not say that it's a different af motor... what's different is that the internal cam group is longer, which addresses the need to travel from a really short mfd to infinity, with this specific design(does it use a floating lens group?)
all macro lenses have to deal with that, and with the a9/fe90 it's not an issue even for sports use, although i do notice it from mfd to infinity, or even covering long distances like 40 yards.
many people have claimed that the fe90 has slow focusing, but you won't see that in real-world use... check out this long skateboarding sequence, full-size pics that are all in focus, on a target that's moving at least as fast as a person can run: https://www.dpreview.com/forums/post/61630683
best to rent and see how it works in specific scenarios.
EDIT: looks like this design does not use a floating lens group, like the fe90 and the sigma 70mm macro, which sigma specifically calls out on the 70mm macro web page.
The lens is not extending and the front and rear elements don't move when going through the focusing range. So the group that actually moves can be called "internal". What I can see is that the moving group looks quite massive so I suspect that it's rather heavy too. Anyway the lens feels pretty heavy overall, I guess Sigma didn't skimp on glass when designing it.
p.10 #12 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
Let me match bwana's Bombay with a Canadian "specialty". Shall have more bouketh since:
1. rounded surfaces make moar boketh than flat ones
2. it's actually 35 years old, my guests never want to have any of it
3. I cheated by using a crystal vase in the background to produce weird reflections
p.10 #14 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
So here it is, the "Finding purple fringing Waldo" entertainment with thin branches against the sky. f/2.8 and, although available in C1 based on the lens embedded profile, the "Chromatic Aberration" and "Purple Fringing" corrections are disabled in this conversion.
The image below is just 1600 px wide so I don't crash Vivek's tablet. The full size image is available through the tinyurl link below:
p.10 #16 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
1bwana1 wrote:
So. Where is Waldo? He is not in that image.
Only looked my phone so far.
He's very stealthy, I was able to see some faint traces at 200% magnification looking directly at the RAW in C1. Once I click the "CA correction" checkbox it disappears (I don 't even need to apply "Purple Fringing" correction).
For me this lens is definitely a keeper.
As for AF, on Saturday I was doing portrait with it, about 300 images, AF-C. I got 1 completely blurred pic (it missed the subject and focused somewhere in the background) and about 5 "meh" ones that are fine if printed as 4x6 but I can see some smear on the monitor. Cannot tell whether it was the lens/camera or the model, mine moves a lot and quite abruptly. In any case this is consistent with the success rate I get with the Sony 100mm STF.
p.10 #17 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)
Not what this lens was designed for but, I was at my desk when I saw a Hummer stopping by to check out my backyard feeder. I grabbed my copy of the Sigma 105 macro, slapped it quickly on my a9 and stuck my head out the door to try and grab a shot. Conditions were difficult, very backlit morning light. I didn't have time to adjust my settings so as you can see the Shutter Speed is a bit low, and the metering was on Multi so I had to push the shadow up too much. I shot this on medium drive mode, no 20 fps.
Still, the lens was able to keep up just fine. I was on the middle focus limiter setting and had f/4 dialed into the lens. The lens was quick enough to acquire focus, and it tracked well. The vast majority of the two bursts I was able to get off before the bird flew away are in nice focus, even if suffering a bit of motion blur.
I will try to do better with a better setup on the camera should I get another opportunity.
This lens is no focus dog as we are discovering. Just not as quick as some of my sports/action optimized lenses.
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