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On 9/4/2020 at 11:27 AM, AphotoBerlin said:

Really looking forward to a comparison with the Summicrons. The MTF-Charts indicate, that it is not much worse at f1,4 than the Summicrons at f2.0. So I think it could even beat the SL-Lenses @ f2.0. But I guess the rendering of the SL-lenses and built quality is still a bit better. 

 

I guess that the q is whether the software correction that Sigma uses to keep the lens compact has any adverse effect on image quality, compared to the Summicrons, which don’t. (The 50mm SL Summilux has software correction, but still has a great signature rendering.)  The other point of difference could be close up v distance performance.

 

 

 

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Sigma 85 1.4 dg dn lens on Sigma fp - f1.4/ ISO 125/ 1/250 sec.

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I finished my first portrait shooting last weekend using the SL2 with this lens... 😍

I used mainly AF-S plus face detection... worked quite well in most cases. However,  sometimes the camera focused on the ‚wrong’ eye. 
 

First results see SL2 foto thread!

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  • 4 weeks later...

I just got this for my TL2. None of the hardware switches on the lens work with the TL2's firmware but I'm very happy with it nonetheless.

TL2 OOC JPEG using vivid setting. ISO200 F2.8 1/160s

 

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On 8/10/2020 at 10:24 AM, Peters said:

They seem to have done a really fine job, specifically with the size and weight. I would like to try this with the CL to get an F2 130mm equivalent. 

Now if Leica could come out with an APSC 90mm summilux which is even smaller and lighter

Why f2? I believe it has been discussed here previously that the light energy per area of the sensor does not change, hence f stop does not change. If this was the case, you could not rely on the readings of external light meters when lenses are used across formats. I use the Sigma 100-400 also on Leica CL, and f stops on the CL and full frame are the same. 

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7 hours ago, Ivar B said:

Why f2? I believe it has been discussed here previously that the light energy per area of the sensor does not change, hence f stop does not change. If this was the case, you could not rely on the readings of external light meters when lenses are used across formats. I use the Sigma 100-400 also on Leica CL, and f stops on the CL and full frame are the same. 

Not referring to the amount of light coming into the sensor but the perceived depth of field that the lens would render. 

An 85mm 1.4 on an APS-C sensor shot at its widest aperture would give approximately the same depth of field (and field of view) as a 130mm F2 on a full frame camera. 

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1 hour ago, Peters said:

Not referring to the amount of light coming into the sensor but the perceived depth of field that the lens would render. 

An 85mm 1.4 on an APS-C sensor shot at its widest aperture would give approximately the same depth of field (and field of view) as a 130mm F2 on a full frame camera. 

I see - this is perhaps the way it is if the distance is the same. 

I will order the lens as well and plan to use it on the Leica CL and the Panasonic S1R. The software optimization the CEO talks about are stored in the lens I guess, so should work on both cameras. I am really impressed by what Sigma offers these days. Based on MTF charts, hard so see much room for improvement. 

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Image with Sigma 85 1.4 dg dn and Sigma fp. Additional blur was applied to the background in processing.

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11 hours ago, Alan Friedman said:

Image with Sigma 85 1.4 dg dn and Sigma fp. Additional blur was applied to the background in processing.

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Beautiful, can feel the joy and the love, precious moments.

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Really enjoying this lens

TL2 ISO100 F1.8 1/125s OOC JPEG vivid setting

 

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Edited by Reggie
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  • 2 weeks later...

Image captured with Sigma fp + 85 at f1.4. 1/30sec ISO1250. Manually focused.

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On 11/2/2020 at 6:05 AM, XRayGuy said:

Can I ask how users are finding the autofocus with this lens on an SL2?

Sorry - I can't help but I'm happy to give your question a bump!

100% crop (I think? - I'm new to this) TL2 with Sigma 85mm 1.4 shot at ISO100 1/1000s F2.2

 

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3 hours ago, XRayGuy said:

Thanks Reggie!  While I have the SL2, are you finding that the autofocus works well for you on your TL2?

Nice images!

Thank you - while I have a background in film, the TL2 is my first foray into digital and digital post processing so I’m very much at the early stage of getting the images right. 
 

In terms of the lens AF, I’ve been pleasantly surprised as the TL2 isn’t exactly renowned for its AF capabilities.
Obvious areas of failure are; 1) hunting in low light but I think that afflicts pretty much all contrast based AF systems and 2) occasionally focusing on the background when I’m in centre AF mode and the subject doesn’t fill the AF spot completely. A slight shift of the AF point will bring it back to focus on the subject. 

Other than that, the AF is fast enough and quiet enough (near silent). There are YouTube reviews demonstrating the speed and noise of the AF. 

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A few things I observed on my Sigma 85 DGDN. I finished shooting my 6th wedding with it on my SL2 and have a good grasp on the pros and cons.
 

1. The lens has visible distortion. More than the other 85’s I have used. Not noticeable on portraits but definitely with straight lines in the background. There isn’t a profile in LR yet. 
 

2. Shooting at 1.4 or 2 the lens is softer than even my Voigtlander 40 1.2 at 1.4/2. I was thinking my focus is bad but after six wedding and over 1500 shots, I can confirm this. I have had to apply sharpening in LR and sometimes PS for closeup portraits. I thought that my earlier lens was defective. Changed it with B&H and still the same thing. Eye/body AF works pretty good though. 
 

3. The lens loses a ton of contrast when facing light. And I do not mean shooting into the sun. Have to add a lot of contrast in post. 
 

4. The rendering is nice but I still prefer my other lenses. As with any other Sigma lens, it is aimed more towards perfection. I personally like classic renders and bokeh from Leica/voigtlander lenses. 
 

5. The lens has painfully slow AF in video. Like molasses slow. 
 

6. AF is great for my use, but under dark conditions it will sometimes simply not focus. Keeps hunting. Groom wearing Tux in a dark dance floor? Failed... I had to switch lenses. 
 

7. The IS on the Leica SL2 works great so I am happy there. 
 

8. The weight and size are great for an entire day of shoot. 
 

Overall it’s a keeper barring the shortcomings. For weddings where mostly no lighting situation is planned, it does let me down a few times. I will be happily shooting with it until I can afford the 90 Summicron. 
 

On a side note, I have so far shot 25 plus weddings with the Voigtlander 40 1.2. I am in love with the images and so are my clients. 90% of them subconsciously pick the Voigt images for print. Woot!!! 😀

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On 11/9/2020 at 4:00 PM, Darthaddie said:

A few things I observed on my Sigma 85 DGDN. I finished shooting my 6th wedding with it on my SL2 and have a good grasp on the pros and cons.

2. Shooting at 1.4 or 2 the lens is softer than even my Voigtlander 40 1.2 at 1.4/2. I was thinking my focus is bad but after six wedding and over 1500 shots, I can confirm this. I have had to apply sharpening in LR and sometimes PS for closeup portraits. I thought that my earlier lens was defective. Changed it with B&H and still the same thing. Eye/body AF works pretty good though. 
 

3. The lens loses a ton of contrast when facing light. And I do not mean shooting into the sun. Have to add a lot of contrast in post. 

Thanks for your observations. I hadn't noticed the softness at 1.4 but I did notice the loss of contrast if the lens hood wasn't on. Are you shooting with the hood on or not?

Here's an into light image (hood on) which came out with what looks like good contrast to me.

TL2 Sigma 85 1.4 at ISO100 1/1600s F1.4

 

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