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This lens rocks. The picture in the link below was opened from a DNG in Preview with the stock profile and exported as JPEG. Not touched, no sharpening, no corrections whatsoever.

Less compressed JPEG here: https://www.smugmug.com/gallery/n-232Tmz/

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And now one with the lens on the Z7

Less compressed JPEG here: https://www.smugmug.com/gallery/n-232Tmz/

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Edited by Chaemono
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On 12/2/2018 at 3:12 AM, Chaemono said:

This lens rocks. The picture in the link below was opened from a DNG in Preview with the stock profile and exported as JPEG. Not touched, no sharpening, no corrections whatsoever.

Less compressed JPEG here: https://www.smugmug.com/gallery/n-232Tmz/

Apple’s DNG renderer is sometimes really bad at reds or high saturation/highlights in general but that looks really cool!

Edited by Simon
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  • 2 months later...

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17 hours ago, phongph said:

Hi All!

All images of Noct 75 f1.25 is very nice!

I just concern its price and its weight for the portrait lens that I am looking for!

I have got SL 601, M10, M35 Lux Fle, 75 Lux, SL24-90, SL Apo 90.

Thanks!

If you have Summilux 75mm than why look for other lens in the same focal length unless you just wish or need to spend money or just impress your neighbours. 

Summilux 75 is probably among the very best portrait lens there is - see video.  Other lens you list are already top of the line.

 

if Carlsberg made lenses they would make Summilux 75

 

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It’s a very big lens, but it’s very fun to use. 

Leica M10 75mm Noctilux f/1.25

http://www.photobasecamp.com

 

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19 hours ago, SMAL said:

Have you cropped it a lot? Cause the dof doesn’t look like f1.25 at this distance.

I checked the file in Lightroom when I got home tonight. Not cropped at all. 

Looking at it closely, the nose and closest to us eye are in focus. The glasses at the front are out  as are the back and the screen left eye fades out of focus by the left edge. So not much of it is in focus! 

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19 hours ago, SMAL said:

Have you cropped it a lot? Cause the dof doesn’t look like f1.25 at this distance.

I checked the file in Lightroom when I got home tonight. Not cropped at all. 

Looking at it closely, the nose and closest to us eye are in focus. The glasses at the front are out  as are the back and the screen left eye fades out of focus by the left edge. So not much of it is in focus! 

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On 3/8/2019 at 2:04 AM, mikeamosau said:

I checked the file in Lightroom when I got home tonight. Not cropped at all. 

Looking at it closely, the nose and closest to us eye are in focus. The glasses at the front are out  as are the back and the screen left eye fades out of focus by the left edge. So not much of it is in focus! 

Interesting. I would actually expect shallower DOF for this lens. This looks similar, if not less shallow, to the 50 1.4.

Nice shot.

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vor 5 Stunden schrieb dkmoore:

Interesting. I would actually expect shallower DOF for this lens. This looks similar, if not less shallow, to the 50 1.4.

Nice shot.

Exactly my thoughts. My assumption is, that he knocked the aperture ring and didn’t shoot wide open. 

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Assuming the same framing you will have (roughly) the same dof for different focal lengths. However, the background is typically more blurry.

You will only see a shallower dof with longer focal lengths if you shoot at the same distance, i.e. much closer framing! 

Thus assuming same framing and roughly the same aperture (1.25 vs. 1.4) it is not surprising that dof looks about the same for a Noc75 vs. Lux50.

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11 hours ago, FrankX said:

Assuming the same framing you will have (roughly) the same dof for different focal lengths. However, the background is typically more blurry.

You will only see a shallower dof with longer focal lengths if you shoot at the same distance, i.e. much closer framing! 

Thus assuming same framing and roughly the same aperture (1.25 vs. 1.4) it is not surprising that dof looks about the same for a Noc75 vs. Lux50.

75 has shallower DOF than a 50 and a 1.25 has a shallower DOF than a 1.4, therefore, if the framing is the same, the 75 Noctilux would have a shallower DOF.

Additionally, I read reports that the fall off from critical focus to out of focus area was significantly more pronounced in this lens then many others and also saw examples that backed this claim.

With all that said my observation was that there wasn't much difference between DOF of these two lenses, which is why we questioned whether the image was cropped. This SHOULD be a surprise, to some degree because there are some significant differences. 

Anywho, this doesn't really matter for my photography but made the observation nonetheless. I think we were arguing the same thing just with slightly different POV.

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vor 6 Stunden schrieb dkmoore:

75 has shallower DOF than a 50 and a 1.25 has a shallower DOF than a 1.4, therefore, if the framing is the same, the 75 Noctilux would have a shallower DOF.

Additionally, I read reports that the fall off from critical focus to out of focus area was significantly more pronounced in this lens then many others and also saw examples that backed this claim.

With all that said my observation was that there wasn't much difference between DOF of these two lenses, which is why we questioned whether the image was cropped. This SHOULD be a surprise, to some degree because there are some significant differences. 

Anywho, this doesn't really matter for my photography but made the observation nonetheless. I think we were arguing the same thing just with slightly different POV.

That's what I thought before I read a very good article of a well-known photography teacher about DOF a year ago! However, it is really a myth that a longer focal length gives you a shallower DOF for a portrait like that posted above! Because of the higher magnification (smaller viewing angle) the background is more blurry, but that has nothing to do with the DOF at subject distance.

The DOF only depends on the f-stop and not on the focal length. The reason is that you have to go further away with a 75 mm to achieve the same framing! For a 50/1.4 the DOF is about 1.7 cm at a distance of 75.5 cm. For a 75/1.4 the DOF is exactly the same (1.7 cm), but at a distance of 113.3 cm. Changing the f-stop to 1.25 changes the DOF to 1.5 cm. That's only 2 mm less than with the 50/1.4 and very difficult to see in a portrait like the one posted above. 

The statement of shallower DOF is only true if you keep the distance constant. At the same distance used with a Lux50 (DOF 1.7 cm) you will get roughly 0.7 cm with the Noc75. In that case, however, your framing changes dramatically. Thus, this effect is not really relevant for your photography in most cases.

You can check all these facts with a DOF simulator like this: https://dofsimulator.net/en/

By the way that's the reason why many new owners are surprised that achieving exact focus with a 75/1.25 is easier than focusing a 50/0.95. The only problem with the RF is that the eyes to focus on get significantly smaller with longer wavelength. Thus, it is probably a good idea to use a 1.4x magnifier or having very good eyes 😉 

Considering the often discussed 'the fall off from critical focus', I believe that this has more to do with a faster decreasing contrast vs. decreasing sharpness. See Thorsten von Overgaard's interview with P. Karbe on the Summicron 50 APO.

So why use a 75 instead of a 50 (for portraits)? You will have less perspective distortion of the face because of the longer distance from the lens to the subject. (This type of distortion is not related to focal length or lens quality. Another myth... another story.)

Hope these explanations help a little bit...

 

 

 

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I like the 75mm field of view, compared to the 90mm - can't explain why.

I love the look of the 75 Noctilux, but have been fighting GAS over it.  Looking at my framelines there is little to differentiate 50mm, and I have a few of those.  But then, the black chrome APO-Summicron-M 50/2 has become available ... and it's cheaper than the Noctilux ...

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