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Exposing for Highlights


Michael Naylor

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This topic would be dead because we're generally all on the same page, save for @Chaemono posting pictures over and over to try and prove a point that no amount of repetitive behavior will prove because most everyone here has their own camera and computer and can see this with their own eyes. It's why this was posted in the first place. 

Edited by pgh
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2 minutes ago, pgh said:

This topic would be dead because we're generally all on the same page, save for @Chaemono posting pictures over and over to try and prove a point that no amount of repetitive behavior will prove because most everyone here has their own camera and computer and can see this with their own eyes. It's why this was posted in the first place. 

I started this thread and I agree.  Thank you to all that have contributed.  My new M10-P has just arrived and I look forward to taking some photos a.s.a.p.

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‘Stop posting links to Raw files, you sob. Let us roam freely and spread our BS. We will bully you off this forum. Yield to the clowns!” Right. Here is a suggestion, how about I continue to post links to Raw files, including Z7 + M-mount lens vs. α7R III + M-mount lens (see which DxOMark score 100 sensors clips Highlights) and you guys go SSD?

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1 hour ago, Chaemono said:

‘Stop posting links to Raw files, you sob. Let us roam freely and spread our BS. We will bully you off this forum. Yield to the clowns!” Right. Here is a suggestion, how about I continue to post links to Raw files, including Z7 + M-mount lens vs. α7R III + M-mount lens (see which DxOMark score 100 sensors clips Highlights) and you guys go SSD?

It's cool that you post raw files, but if you are gonna do so, make sure that you at least expose the images correctly, rather than just do blanket comparisons at ISO 200, 400, 800, etc. when all cameras have differences in sensitivity due to sensor technology, design, cover glass, and processing.

Unless you can match the histograms in-camera between all cameras, so that the exposure of the raw files are more or less identical, then there is really no point in your comparisons at all. Really. Up until now all your examples just show that the Sony's sensor are more sensitive to light versus the Leica sensor. This is an advantage for the Sony, but you seem to think that the Sony fails at retaining highlights, when you in fact are intentionally blowing the highlights because you are matching exposure settings with a camera with noticeably lower sensitivity!

And then you call others out for spreading BS while you are in fact the one doing it. Good job Sir!

Edited by indergaard
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Come on, guys, I know you didn't really mean it when you said you didn't wanna look at no Raw files no more. Let's make up. We have some time to kill until we can "Expose for Highlights" with two DxOMark score 100 FF sensor cameras, the Z7 and the α7R III.

Let's recap what we've learned so far: clipped Highlights at ISO 640 on the Sony vs. ISO 640 on the M10 in situations where there are extreme Highlights and Shadows in the frame. Lowering ISO to 500 on the Sony results in somewhat better treatment of Highlights but then the Shadows are darker than on the M10 at ISO 640.

We'll switch lenses, now with the 75 Summicron, and look at one comparison with ISO 160 on the Sony vs. ISO 200 on the M10. Well, still a bit darker Shadows on the Sony, but 'c'est la vie' as the Spaniards say. 

α7R III + 75 Summicron-M ISO 160 f/2.0 @1/60 sec. ARW file: https://cc2032.zenfolio.com/img/g51539093-o750076470.dat?dl=2&tk=tFojZVV437p1k5HSAjf_d15B8U3f_bCXuVne85c_2zA=

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M10 + 75 Summicron-M ISO 200 f/2.0 @1/60 sec. DNG file: https://cc2032.zenfolio.com/img/g323935292-o750076470.dat?dl=2&tk=TCdujjqwJ5Y59sVQ0EHq3CKejQRdIEtJEQejIZDBhqQ=

Edited by Chaemono
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Just picked up a Z7 and an adapter for M lenses. I found a dealer where a customer who had ordered the camera is still on vacation and he was willing to give it to me. I don’t know how customizable the buttons on the Z are but the Sony is faster to operate. Image stabilization was greyed out with M lenses on the Z. Something is missing on the left side of the Z body to rest my left hand. Putting it underneath the lens only works with large lenses. The Sony feels better, can be held more stably with M lenses. Getting back to topic, I exposed both, the Sony and the Z7, with the same lens for Highlights and kept thinking “Will the real 100 DxOMark score FF sensor, please, stand up!”  I haven’t looked at them, yet. I will expose for Highlights all three cameras with the same lens, M10-P, α7R III, and Nikon Z7, eventually. We have till Christmas. We may have even more fun in this thread but let’s see how good the Z7 results are. 

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Firs Raw files with the Z7 vs. α7R III both with the 75 Summicron-M exposing for Highlights. 😀 I will add the M10 later on to these tests. I hadn't entered the focal length into the Z7 yesterday so IS was off. Ergonomically, the fact that the Z misses the left side of the grip is an issue for me as there is no place to rest the ball of my left thumb. I could tell that I was not holding the Nikon as firmly as the Sony. Putting one's hand underneath the lens works with large lenses but M lenses feel better on the Sony, even if the α7R III is tiny or because of this. Also, I'm not impressed with the EVF and focus peaking of the Z but they are good enough. But the sensor seems very good. From the small number of shots I took yesterday, I could tell that it is more light sensitive than the Sony's in the ISO range 100 to 800, I'd say. The Sony seems to pull ahead at ISO 1600 and above. I used compressed (they say lossless) files on the Nikon and did notice a bit more noise than with the Sony when Shadows were pulled up and Brightness was increased. The main question we are after, of course, is how does it deal with Highlights and here there is more to come. But for now the first two to play around with.

α7R III + 75 Summicron-M ISO 640 f/2.0 @1/800 sec. (slower shutter speed on the Sony) ARW file: https://cc2032.zenfolio.com/img/g462741145-o750076470.dat?dl=2&tk=0QOXzeFWbnqBeSjahDJ1cIXw_3reCKVkjTF_N_CQ9cY=

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Z7 + 75 Summicron-M ISO 640 f/2.0 @1/1000 sec. (faster shutter speed on the Nikon, IS inadvertently off) compressed NEF file: https://cc2032.zenfolio.com/img/g450770508-o750076470.dat?dl=2&tk=t2-QXSNU09EJUKBx-vpuNtjdZxQIcSz9z6E-2piL5vs=

Edited by Chaemono
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And two more. I don't know what is in the background of one of the lights. It could be a monitor or the difference may be due to the different Blues of the two cameras. This needs further exploring but based on what I've seen I'm a bit suspicious of the Sony when it comes to extreme Highlights in that ISO range. Let's see. We have till Christmas to expose for Highlights. 😀

 

α7R III + 75 Summicron-M ISO 640 f/2.0 @1/125 sec. ARW file: https://cc2032.zenfolio.com/img/g474063150-o750076470.dat?dl=2&tk=fYAvyF_BqhDYWAe_5u7TL5q-IIWdYJgA2F1eMNEAqLM=

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Z7 + 75 Summicron-M ISO 640 f/2.0 @1/125 sec. (IS off as focal length of the lens had not been entered into the camera) compressed NEF file: https://cc2032.zenfolio.com/img/g89305898-o750076470.dat?dl=2&tk=yJXuYoHaWlWJARTe7VmAXIy21Zo-LI4u6I1gDJ5bzag=

Edited by Chaemono
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Z7 sensor seems very light sensitive or it's the processing by Nikon. Focus peaking doesn't work with 200 percent magnification, only with 100 percent. I assigned the zoom function to the Fn1 button. In theory, one can focus this way quickly with manual lenses while looking through the EVF. But the resolution of the EVF isn't great and when the DOF is very shallow one needs 200 percent magnification but then focus peaking doesn't work. I get fewer keepers with Z7, therefore.  So this is really a dilemma, IMO. It's a bummer because the sensor is great. I'm sure the second generation Nikon mirrorless will have a higher resolution EVF and maybe focus peaking can be improved even before then with firmware. With the α7R III focus peaking at 200 magnification with shallow DOF works like a charm. One can quickly nail focus and move on. But then it's Sony's third generation mirrorless.

α7R III + 35 Summicron-M ISO 160 f/2.0 @1/1000 sec. ARW file: https://cc2032.zenfolio.com/img/g685866580-o750076470.dat?dl=2&tk=TK0UFKm7zRBtKPk-ightQkWJ7wqafXuPNQOJyiPTEOQ=

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Z7 + 35 Summicron-M ISO 160  f/2.0 @1/1000 sec. NEF file: https://cc2032.zenfolio.com/img/g599489329-o750076470.dat?dl=2&tk=KUgrhRgrhHXX5X517OLHc8voVu4PsfT2wi1XcyjNAMc=

 

M10-P + 35 Summicron-M ISO 200 f/2.0 @1/1000 sec. DNG file: https://cc2032.zenfolio.com/img/g1045171178-o750076470.dat?dl=2&tk=cFV9ejAR97eWKkitzTdX_eAwa3_iYCICYYIek1xcHPc=

Edited by Chaemono
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I love how the M10 handles the most, but those who want a 'better' sensor should wait for the Panasonic FF mirrorless bodies with great EVF or the SL2, IMO.

 

α7R III + 35 Summicron-M ISO 500 f/5.6 @1/60 sec. ARW file: https://cc2032.zenfolio.com/img/g970162556-o750076470.dat?dl=2&tk=fmg1uOO0Qy5sOuQ6Xa47kEntVL442x81aYrgFHDcxWU=

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Z7 + 35 Summicron-M ISO 500 f/5.6 @1/60 sec. NEF file: https://cc2032.zenfolio.com/img/g649946065-o750076470.dat?dl=2&tk=448XgBb0uQpC4R3o-5_tp-aYUgbWBgdnBmKml_spqL0=

 

M10-P + 35 Summicron-M ISO 640 f/5.6 @1/60 sec. DNG file: https://cc2032.zenfolio.com/img/g697209301-o750076470.dat?dl=2&tk=Se12AaNS5NQzbLrRYnTLHihRsl8ikGdgapmFg9XC7m0=

Edited by Chaemono
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vor 37 Minuten schrieb pgk:

I'm sorry, but what was the question?

Sorry, post #151 was off topic. You mean, what's the theme?

See post #8 by astrostl: "The M10 is my first and only Leica, and like SMAL I also find that it tends to underexpose, not overexpose, by default. I've gotten used to pointing at the ground to lock in exposure before addressing a scene with skies in it, so that I'm not past the point of no return in terms of recovering shadows." Yeah, right.

Or post #137 by pgh: "Even at ISO 200 (which is significantly better than 100 and is fine for many circumstances but fine isn't what this is about) you still have to meter to protect highlights much more than with the Sony." Really, Sony?

Or post #141 by pgh: "This topic would be dead because we're generally all on the same page, save for @Chaemono posting pictures over and over to try and prove a point that no amount of repetitive behavior will prove because most everyone here has their own camera and computer and can see this with their own eyes. It's why this was posted in the first place." Clearly begging for more Raw file comparisons here.

But if you mind, Paul, I can start another thread "Exposing for Highlights with the Z7, α7R III, and the M10." It ain't gonna make a difference. I'll just post the links to Raw files there. But why make such an effort when we have everyone gathered around here following the action. 😀

 

Back to topic "Exposing for Highlights," here the light sensitivity of the Z7 somehow doesn't come through. 

α7R III + 50 Noctilux ISO 500 f/5.6 @1/125 sec. ARW file: https://cc2032.zenfolio.com/img/g716068737-o750076470.dat?dl=2&tk=gBtUgnJy9YXEi9meB-VwDaKTyaBvevVl4CIdxbfqfYk=

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Z7 + 50 Noctilux ISO 500  f/5.6 @1/125 sec. NEF file: https://cc2032.zenfolio.com/img/g822257274-o750076470.dat?dl=2&tk=0F_EOTpjzfn7RJynyz743_eCYR2KLU4mCu0hQIE272w=

 
 
 
 
 
 
Edited by Chaemono
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Okay girls and boys, let's expose some more for Highlights with our three favorite mirrorless FF compact cameras, the Z7, the α7R III, and the M10, using the Apo 50 Summicron-M.

Some general observations first. Focus peaking at 200 percent magnification works well on the Z7 with the Apo 50 Summicron. It didn't work with the 35 Summicron-M or was basically invisible. I like how the Sony and the Nikon, now, feel with M lenses and both can be operated fluidly. But there is definitely a bit more vignetting with the M lenses on the Z7. It may have to do with the larger Novoflex adapter the Nikon needs because of its huge mount and, therefore, the likely longer distance from the mounting flange to the sensor. The Z7 seems to have more enhanced light gathering capabilities, I noticed this around the center,  than either the α7R III or the M10 and this can create a very nice effect with M lenses wide open (focus point needs to be in the center, corners are soft). Others have shown this and look around to find those pictures. But this is not what this thread is about. 

The 'enhanced light gathering capabilities' of the Nikon means to expose equally with all three cameras with the same shutter speed using the same lens and aperture one needs to apply in the lower ISO range ISO 125 on the Z7, ISO 160 on the α7R III, and ISO 200 on the M10. Equally, in lower light I used ISO 400 on the Z7, ISO 500 on the α7R III, and ISO 640 on the M10. And here is the issue for me. 'Enhanced light gathering capabilities' or more light sensitivity for both, the Nikon and the Sony, doesn't mean more Shadow detail. In scenes with extreme Highlights and Shadows one has to be more careful with the Nikon and the Sony not to blow Highlights than with the M10. Let's look at some pictures.

Z7 + Apo 50 Summicron-M ISO 125  f/2 @1/1000 sec. NEF file: https://cc2032.zenfolio.com/img/g121287523-o750076470.dat?dl=2&tk=yXO0aCZW0uHrQB_380rbgOq34SHex6zHVFdzGGfMa84=

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α7R III + Apo 50 Summicron-M ISO 160 f/2 @1/1000 sec. ARW file: https://cc2032.zenfolio.com/img/g161214137-o750076470.dat?dl=2&tk=2v7xrU7EAktRzWXLmDpxCn1H94_LNu391zzAlYPTX5U=

 

M10-P + Apo 50 Summicron-M ISO 200 f/2 @1/1000 sec. DNG file: https://cc2032.zenfolio.com/img/g528277871-o750076470.dat?dl=2&tk=tT6eSBdBwygR7T9H0k3MEgKDSj8yyoDDuOGrrEz2Jr4=

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And three more. I love how the M10 exposes here.

Z7 + Apo 50 Summicron-M ISO 125  f/2 @1/1000 sec. NEF file: https://cc2032.zenfolio.com/img/g33113621-o750076470.dat?dl=2&tk=bF6zkpya85TjMm0LDra23wR4bm4HD7Ro6DhtOYIKFZE=

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α7R III + Apo 50 Summicron-M ISO 160 f/2 @1/1000 sec. ARW file: https://cc2032.zenfolio.com/img/g223860961-o750076470.dat?dl=2&tk=0OCvPug8uvIC1FOiq5EDbdnF2yoDiE4D1eu5J1Mu1oU=

 

M10-P + Apo 50 Summicron-M ISO 200 f/2 @1/1000 sec. DNG file: https://cc2032.zenfolio.com/img/g194041539-o750076470.dat?dl=2&tk=-MkrT_fi8x_3Tm7YWdto_u01PSyzOGIayJKotpUQECU=

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Please, more? Sure.

Z7 + Apo 50 Summicron-M ISO 125  f/2 @1/1000 sec. NEF file: https://cc2032.zenfolio.com/img/g200305818-o750076470.dat?dl=2&tk=OuRXYBui5KTDiCy47B6nwpAsHuUPIjWUP3h3Y7ZrXLQ=

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α7R III + Apo 50 Summicron-M ISO 160 f/2 @1/1000 sec. ARW file: https://cc2032.zenfolio.com/img/g66894705-o750076470.dat?dl=2&tk=er5l7PEAefaCEDdhu45Fpum6l-6hBSq5BOjuPf_MH-o=

 

M10-P + Apo 50 Summicron-M ISO 200 f/2 @1/1000 sec. DNG file: https://cc2032.zenfolio.com/img/g345278594-o750076470.dat?dl=2&tk=FmVlesjmQN5iNRi-pZ9njeoq_DdkZj5irugs7Bu0bE0=

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You got to love the M10 here. Better treatment of Highlights while maintaining more Shadow details. The M10 in the ISO range 200 to 800 kicks @ss.

Z7 + Apo 50 Summicron-M ISO 125  f/2 @1/1000 sec. NEF file: https://cc2032.zenfolio.com/img/g479567013-o750076470.dat?dl=2&tk=UuNPwDQAX3NrHD9_EsUCkf97p5scFT-QaKfr7ZEUAP0=

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α7R III + Apo 50 Summicron-M ISO 160 f/2 @1/1000 sec. ARW file: https://cc2032.zenfolio.com/img/g34891855-o750076470.dat?dl=2&tk=Zyj8Ik9MOtkFIROxf1zNgdwPFq5BDxU_0nDaP_kpufw=

 

M10-P + Apo 50 Summicron-M ISO 200 f/2 @1/1000 sec. DNG file: https://cc2032.zenfolio.com/img/g246086602-o750076470.dat?dl=2&tk=tR8DYBm9KErN3DGWrNUxL3Bpaj9elaCvRKGhT4JmalM=

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