In which circumstances does this happen to you? I use both and for photography, I do not see/ feel a difference.
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News New Panasonic S 100mm 2.8 Macro Lens
- Thread starter Ortziomenaka
- Start date
In which circumstances does this happen to you? I use both and for photography, I do not see/ feel a difference.
Maybe the Sigmas are being handicapped in the AFC "stickiness" so to sway us to buy Panasonic lenses?
I think I'm joking but it certainly was a factor I considered choosing my first lenses.
CharlesH
LMF-Patron Gold
I use the Sigma 20mm f/2 Contemporary quite a bit for video, and it tracks focus very well.
Most likely the motors. The Panasonic S Pro series lenses use linear motors and can adjust the focus at 480fps. The Sigma i-series use stepper motors and so won't be as fast, which will have an influence on how quickly a DFD camera like the S5 can achieve focus. There should be far less of a difference with the S5ii since it uses Phase Detection.
It'd be interesting to see how Sigma's new 70-200 f2.8 performs on a DFD camera since it uses linear motors.
Jonathan-Mac
Well-Known Member
The one time I used the Sigma 24-70/2.8 Art to try to track runners in a race the AF was also terrible. I should have used the 20-60mm.
Quentinquirelino
Well-Known Member
As far I know also the 50mm F1.4 DG DN Art has the newer HLA focusing motors. The 50mm F2 I Series still gut the old system. The upcoming 500mm will probably the fourth lens with the new, faster motors.
I did see, read or hear somewhere before that the Sigma 60-600 had better AF than the newer 150-600 DG DN Sports, maybe tested on S5ii with PDAF, I'm not sure though.
This would be a good comparison review video for those interested in buying either lens for S5ii. I'd rather have the 150-600 though in price/weight but not if the 60-600 has better AF.
This would be a good comparison review video for those interested in buying either lens for S5ii. I'd rather have the 150-600 though in price/weight but not if the 60-600 has better AF.
500mm could be nice, I'm wondering will they update the 150-600 DG DN Sports with the HLA motors.
It is useful to know how the HLA motors achieve the fast tracking accuracy, they aren't moving huge heavy groups of glass...
A short read and diagram below from Sigma website:
Sigma 50mm HLA
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Below is the YouTube clip showing how HLA motors in the new Sigma 70-200 work, it seems inherent to the lens design and it's vital for action photography. I feel it's important to know the technicals before you chose a lens more suited to your needs. It puts into context the idea of using an older design or even adapting old models and then expecting top AF tracking performance from the latest camera like an S5ii.
Sigma 70-200 High-speed AF with a dual HLA
Sigma 70-200 High-speed AF with a dual HLA
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You're right: I'd missed the fact that was the first of the Art series to use the HLA motors.
CharlesH
LMF-Patron Gold
A few shots with the 100mm f/2.8 (macro) in Las Vegas.
The Las Vegas Sphere, through the hotel room window. With Lightroom Denoise. Distortion to the left is the angle of the thick window.
Wynn Plaza
Las Vegas Boulevard
Palazzo
The Las Vegas Sphere, through the hotel room window. With Lightroom Denoise. Distortion to the left is the angle of the thick window.
- Panasonic - DC-S5M2
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/2.8
- 1/80 sec
- Pattern
- Manual exposure
- ISO 2000
Wynn Plaza
- Panasonic - DC-S5M2
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/8
- 1/1250 sec
- Pattern
- Manual exposure
- ISO 500
Las Vegas Boulevard
- Panasonic - DC-S5M2
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/8
- 1/1250 sec
- Pattern
- Manual exposure
- ISO 500
Palazzo
- Panasonic - DC-S5M2
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/9
- 1/1250 sec
- Pattern
- Auto exposure
- ISO 500
881€ in Gran Canaria
halfmac
New Member
- Panasonic - DC-S5M2X
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/2.8
- 1/800 sec
- Pattern
- Auto exposure
- ISO 400
- Panasonic - DC-S5M2X
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/2.8
- 1/125 sec
- Pattern
- Auto exposure
- ISO 200
- Panasonic - DC-S5M2X
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/2.8
- 1/400 sec
- Pattern
- Auto exposure
- ISO 200
- Panasonic - DC-S5M2X
- LUMIX S 100/F2.8 MACRO
- 100.0 mm
- ƒ/2.8
- 1/40 sec
- Pattern
- Auto exposure
- ISO 800
For those of you about to go macro with this little beauty, I have dusted off the old steel rule and investigated the auto focus-bracketing settings on the S5II.
So, starting at minimum focus distance with the 0/+ setting (starts at nearest focus set, and moves out), using 30 shots...
At f/8: step setting 2 gives depth of field = 5mm; step setting 5 gives stacked depth of field 13mm; step setting 10 gives depth of field 32mm.
At f/2.8: step setting 2 gives depth of field = 2mm; step setting 5 gives stacked depth of field 5mm; step setting 10 gives depth of field 10mm.
The depth of field of a single shot appears to be a bit less than 1mm at f/2.8 and around 2mm at f/8. All the stacks were perfectly fine at the step setting 10,which is therefore what I'd recommend at closest focus distance.
So, starting at minimum focus distance with the 0/+ setting (starts at nearest focus set, and moves out), using 30 shots...
At f/8: step setting 2 gives depth of field = 5mm; step setting 5 gives stacked depth of field 13mm; step setting 10 gives depth of field 32mm.
At f/2.8: step setting 2 gives depth of field = 2mm; step setting 5 gives stacked depth of field 5mm; step setting 10 gives depth of field 10mm.
The depth of field of a single shot appears to be a bit less than 1mm at f/2.8 and around 2mm at f/8. All the stacks were perfectly fine at the step setting 10,which is therefore what I'd recommend at closest focus distance.
Markuswelder
Well-Known Member
I have found no such issues with my Sigma 28-70mm f2.8 on my S5 mk1. I was a bit concerned after reading reports of lesser performance over Panny lenses, I've found no such thing. Here's a few samples, mostly shot wide open @ 70mm & f2.8, in a 70km/hr area, AFC, single shot. I shot about 80 images, every single one in focus. I did stop down a bit on a few to drag the shutter a bit, still performed flawlessly.
- Panasonic - DC-S5
- 70.0 mm
- ƒ/2.8
- 1/2500 sec
- Pattern
- Auto exposure
- -0.3
- ISO 100
- Panasonic - DC-S5
- 70.0 mm
- ƒ/2.8
- 1/2000 sec
- Pattern
- Auto exposure
- -0.3
- ISO 100
- Panasonic - DC-S5
- 70.0 mm
- ƒ/2.8
- 1/2000 sec
- Pattern
- Auto exposure
- -0.3
- ISO 100
This dude pedaled past, just for sh!ts & giggles I shot a single frame. Spot on
- Panasonic - DC-S5
- 70.0 mm
- ƒ/2.8
- 1/2000 sec
- Pattern
- Auto exposure
- -0.3
- ISO 100
- Panasonic - DC-S5
- 70.0 mm
- ƒ/2.8
- 1/2000 sec
- Pattern
- Auto exposure
- -0.3
- ISO 100
- Panasonic - DC-S5
- 70.0 mm
- ƒ/2.8
- 1/2000 sec
- Pattern
- Auto exposure
- -0.3
- ISO 100
Dragging the shutter a bit, all good
- Panasonic - DC-S5
- 28.0 mm
- ƒ/8
- 1/160 sec
- Pattern
- Auto exposure
- -0.3
- ISO 50
- Panasonic - DC-S5
- 70.0 mm
- ƒ/10
- 1/160 sec
- Pattern
- Auto exposure
- -0.3
- ISO 100
Jonathan-Mac
Well-Known Member
Perhaps the 28-70 is better at this than the 24-70, which would seem odd as the latter is the "higher grade" lens. But tracking trucks that almost fill the frame and move in a straight line is hardly the same as tracking children who are running or on scooters and move with changes in speed and direction, which is what I have done. The Sigma lenses performed significantly worse than the Lumix 50/1.8.
Quentinquirelino
Well-Known Member
I use my 28-70/2.8 for my children all the time with Eye/Face/Body-Tracking and off cause CAF and can't complain about it. In good light, I don't think there is a big difference to the Panasonic 50/1.8. With less light the Panasonic lens is better compared to the Sigma. But it's also f2.8 vs f1.8.
However, despite the 28-70 is cheaper than the 24-70 from Sigma, I don't think it would be odd if it's better focusing. The 24-70 was one of Sigma's first FF mirrorless designs, release back in 2019. Sigma has made some progress since than to improve AF until the 28-70 was released in 2021. The 28-70 is also more lightweight and also the lens elements probably are lighter. That means the focusing motors have less weight to move. It sounds a little bit silly, but the weight that the focusing motors have to move for focusing is a important factor when it comes to focusing speed. And after all I don't think Sigma would have made the 28-70 slower as it could be to insure sales of the 24-70.
Markuswelder
Well-Known Member
I think the 28-70mm is a newer design, with smaller, lighter elements. So that could make a difference. Also, it's not that odd, I come from m4/3, and I was once again very very reluctant to try an aftermarket or third party lens. Tried the Sigma 56mm f1.4 and it was outstanding. Every bit as good as a native lenses in AFC. Yet plenty of people complain about it. The Sigma 30mm f1.4 which I also own, is not quite as snappy and confident. So there is a little bit of variation, in my experience.
I was responding to your comment regarding runners in a race. Which would be travelling at a constant speed in a straight line, but the speed would be much reduced from the 70km/hr I shoot the trucks at. And even the bike rider. And I also tracked them in, until they filled the frame, then snapped off a single shot. Every single one in focus. Not machine gunned off a burst, and then picked the best one. To me, that shows excellent accuracy and consistency