p.1 #1 · Did manual focus lens on Z goes beyond f5.6
Exercise me if this topic has been discussed before.
I have a Zf body and a bunch of Leica M lenses. When adapting to those M lenses the Zf body aperture can only set as small as f5.6. Turning the wheel doesn’t let the aperture go smaller. The exposure seems to be correct though if I use aperture priority mode. It’s just annoying that the picture EXIF data is wrong.
Is this a know phenomenon? The aperture setting on camera doesn’t affect anything related to exposures because obviously the aperture setting on the M lenses supersede.
Is this effect related to depth of view limit? Because if I remember correctly on my old DSLR body (D810), the depth of view functions only up to f5.6
I think this effect is same to native Z mount manual lenses, for example voigtlander? I don’t have any voigtlander lenses
p.1 #2 · Did manual focus lens on Z goes beyond f5.6
I'm kind of confused on what you're doing when adapting. Because your M lenses are manual aperture, I would expect that you shouldn't adjust the aperture on the camera at all...just keep it set to wide open and then set the aperture on the lens to whatever you want. Are you using a chipped adapter that has a manual aperture control or something?
It is true that f/5.6 is the lowest that Nikon Z cameras will do stop down metering, so if you try to dial beyond this on the camera, and your physical aperture is set to, say, f/8, it will think that the lens is one stop more open than it is when metering, and therefore will overexpose the image.
If you are using a chipped adapter, setting it to basically anything f/5.6 and below should work fine no matter what the adapted lens is actually set to, since it will assume the lens is metering at the shooting aperture (which it will be, just the EXIF will be recorded incorrectly).
If you're using a dumb adapter, of course the body won't show an aperture value at all.
For native Z voigtlander lenses, it properly tells the camera the correct aperture regardless of what it's set at, and it knows that it's the same as the metered aperture (the same as if a native Z lens has a max aperture of f/6.3, or you're using a TC so the lens has a max aperture of f/8 or something..it'll meter properly at that aperture).
So, long story short, if you're using a chipped adapter that allows you to 'set' an aperture in camera despite using a manual aperture lens, just leave it set to wide open and only adjust aperture on the lens and everything should work great...don't worry about the EXIF.
p.1 #3 · Did manual focus lens on Z goes beyond f5.6
Nikon will not show the effect of apertures closed down past 5.6 in live view for chipped AF lenses, which I'm pretty sure is what you're describing. Your EXIF isn't wrong, you're just not seeing the WYSIWYG image if you, say, set to F8.
Now, if you have a FULLY mechanical dumb lens, or a dumb adapter, then yes, you can set the aperture to whatever you like and see the accurate depth of field in the viewfinder. Even a Z CV lens will show correctly in live view because it's a fully mechanical lens.
p.1 #4 · Did manual focus lens on Z goes beyond f5.6
People are obsessed with storing correct EXIF in their image files.
(shot at 50mm f/2.8)
I take it, OP is using a TTArtisan adapter, maybe the 6bit chipped one?
Apparently, the chip doesn't allow smaller than f/5.6 bc going beyond that would cause the trap focus and other things (manual focus confirmation green box) to stop working.
That's why, when using a chipped adapter that will enable the fabulous MF eye tracking and "AF box green" method of using vintage lenses (e.g. with the Neewer NW-ETZ), you CAN choose an Aperture value on your camera, but the focus confirmation won't work when setting it beyond f/5.6 (you CAN do that on the Neewer, but it does not register focal length, so you can get correct aperture nr. in your exif.. but focal length is 50mm... and what's worse (and actually matters, imho) you cannot get correct working IBIS bc the focal length is wrong.
p.1 #5 · Did manual focus lens on Z goes beyond f5.6
Maybe I didn't make myself clear. Let me rephrase then.
I am using a TTaritsan adapter, with electronic contacts. Basically you can set a focal length on adapter to tell the camera what focal length of the lens is adapted. That's all. I don't think the adapter knows the aperture setting on lens.
So what I intend to do is to set the aperture in camera to be the same as I select on the lens so that the EXIF data will be correct. It has nothing to do with exposure. It's just a dumb data. But it seems the settings on camera body for aperture cannot go smaller than f5.6 if a manual lens is adapted with a dumb adapter.
p.1 #6 · Did manual focus lens on Z goes beyond f5.6
mbphoto_2.8 wrote:
People are obsessed with storing correct EXIF in their image files.
(shot at 50mm f/2.8)
I take it, OP is using a TTArtisan adapter, maybe the 6bit chipped one?
Apparently, the chip doesn't allow smaller than f/5.6 bc going beyond that would cause the trap focus and other things (manual focus confirmation green box) to stop working.
That's why, when using a chipped adapter that will enable the fabulous MF eye tracking and "AF box green" method of using vintage lenses (e.g. with the Neewer NW-ETZ), you CAN choose an Aperture value on your camera, but the focus confirmation won't work when setting it beyond f/5.6 (you CAN do that on the Neewer, but it does not register focal length, so you can get correct aperture nr. in your exif.. but focal length is 50mm... and what's worse (and actually matters, imho) you cannot get correct working IBIS bc the focal length is wrong....Show more →
You are right I am using TTartisan 6bit adapter, I don't know if it's chipped or not, but it has metal contacts and there is a selection of focal length.
The IBIS is working properly, I have tried that. The focus confirmation works too no matter what aperture I set on the lens. I don't care about trap focus though.
So it seems everything works on this adapter except that EXIF data wrong. I can live with that.
So the practice is just leave the aperture setting in camera to be the biggest one, for example f/2 and forget about it?
p.1 #7 · Did manual focus lens on Z goes beyond f5.6
rollei35_warton wrote:
You are right I am using TTartisan 6bit adapter, I don't know if it's chipped or not, but it has metal contacts and there is a selection of focal length.
The IBIS is working properly, I have tried that. The focus confirmation works too no matter what aperture I set on the lens. I don't care about trap focus though.
So it seems everything works on this adapter except that EXIF data wrong. I can live with that.
So the practice is just leave the aperture setting in camera to be the biggest one, for example f/2 and forget about it?
Pretty much- If the lens is 6 bit coded, it comes up in the Exif as that lens which I really love!!! I don't even think what aperture is set on the camera anymore- It doesn't matter with the adapter on. I just love that it identifies the lens in Exif as 35 Summilux 1.4 etc.
p.1 #8 · Did manual focus lens on Z goes beyond f5.6
RustyRus wrote:
Pretty much- If the lens is 6 bit coded, it comes up in the Exif as that lens which I really love!!! I don't even think what aperture is set on the camera anymore- It doesn't matter with the adapter on. I just love that it identifies the lens in Exif as 35 Summilux 1.4 etc.
I have been using Leica M system for a decade and so I kind of get used to the aperture misinformation in EXIF, I just thought with Z it could finally lineup by setting this data in the camera, but it seems not beyond f5.6
I have no intention to invest a voigtlander lens just for the sake of correct reading of aperture.
p.1 #10 · Did manual focus lens on Z goes beyond f5.6
Jman13 wrote:
Understandable - though I'll say the reason to invest in a Voigtlander lens is because they're great lenses.
I like voigtlander because they are generally speaking having high quality. But I have a large set of Leica M mount lenses which can be easily be adapted. I feel buying voigtlander z mount doesn’t give anything extra that I don’t currently have, but only for the purpose of native z mount, it’s kind of waste.
I have been eyeing on the CV 50 f2 APO z mount for a while but being reluctant to pull the trigger
p.1 #12 · Did manual focus lens on Z goes beyond f5.6
RoamingScott wrote:
Z 50 APO is officially gone in the US, so if you want it, better buy it quick, I know Canadian stock moves slower.
Yeah I know I was following the stock for quite a while in Canada and there are still some big retailers having stocks.
But the more I think about it the less I feel thrilled. I have Leica M mount 35mm APO and 50mm APO. As I said buying a Z mount 50mm APO is just buying for its mount which seems pretty much a waste to me. I don’t think voigtlander APO is better than Leica M APO
p.1 #13 · Did manual focus lens on Z goes beyond f5.6
RustyRus wrote:
Pretty much- If the lens is 6 bit coded, it comes up in the Exif as that lens which I really love!!! I don't even think what aperture is set on the camera anymore- It doesn't matter with the adapter on. I just love that it identifies the lens in Exif as 35 Summilux 1.4 etc.
there's no 6-bit code for the 180mm Elmarit, is there?
(I take it, there never was one for M system)
Too bad the 6-bit adapter cannot be set to 180mm focal length, because that lens of mine would profit most from having accurate IBIS. (Elmarit-R 180mm f/2.8 mk II)
I'm content with the 28/2.8, 50/2, 60/2.8 macro, 90/2, and 135/2.8 all working with Leica M 6bit codes.. but the 180 is a bummer..
