Donzo98 Posted February 24, 2019 Share #1 Posted February 24, 2019 Advertisement (gone after registration) Is it possible for a manual focus lens to be out of focus when focused properly on an SL?? I was wondering... I have an F1 Noctilux and focusing a NON MOVING target on a tripod. I thought if it is focused in the EVF (using mag)... that should be the best possible focus I could achieve. I'm not sure if my eyes are playing tricks on me.... but it seems that the focus point is off a tiny bit as compared to a different area. Quote Link to post Share on other sites More sharing options...
Advertisement Posted February 24, 2019 Posted February 24, 2019 Hi Donzo98, Take a look here Manual focus question..... I'm sure you'll find what you were looking for!
mmradman Posted February 24, 2019 Share #2 Posted February 24, 2019 In practice mirrorless always delivers images as it was focused. Any unsharpness you see could have been induced at the moment you pressed shutter even with camera on tripod, maybe earth moved or you shook the camera. In my experience M lenses that were at times unsharp on M camera and sometimes provided images with some gorgeous character are now all bland and perfectly in focus when used on SL 😁 1 Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 24, 2019 Author Share #3 Posted February 24, 2019 (edited) 10 minutes ago, mmradman said: In practice mirrorless always delivers images as it was focused. Any unsharpness you see could have been induced at the moment you pressed shutter even with camera on tripod, maybe earth moved or you shook the camera. In my experience M lenses that were at times unsharp on M camera and sometimes provided images with some gorgeous character are now all bland and perfectly in focus when used on SL 😁 Focus on left red knob... and cropped a bit. Seems OK I guess... Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited February 24, 2019 by Donzo98 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/294583-manual-focus-question/?do=findComment&comment=3690185'>More sharing options...
darylgo Posted February 24, 2019 Share #4 Posted February 24, 2019 (edited) Appears there was slight movement of the camera. Try using the self timer to delay release of the shutter and use electronic shutter. Also, check the eyepiece diopter adjustment is set correctly for your eyes. My eyes play tricks on me, and occasionally I need to change diopter settings. Tired eyes vs. fresh eyes, young eyes may not have any issues but who here is young? Edited February 24, 2019 by darylgo Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 24, 2019 Author Share #5 Posted February 24, 2019 10 minutes ago, darylgo said: Appears there was slight movement of the camera. Try using the self timer to delay release of the shutter and use electronic shutter. Also, check the eyepiece diopter adjustment is set correctly for your eyes. My eyes play tricks on me, and occasionally I need to change diopter settings. Tired eyes vs. fresh eyes, young eyes may not have any issues but who here is young? This was handheld... at F1. Good point about the adopter though. I'm 55... is that young?? LOL. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/294583-manual-focus-question/?do=findComment&comment=3690202'>More sharing options...
mmradman Posted February 24, 2019 Share #6 Posted February 24, 2019 25 minutes ago, Donzo98 said: This was handheld... at F1. Good point about the adopter though. I'm 55... is that young?? LOL. Age is irelevantno but it helps with younger eyes and steadier hands. As Daryl suggested adjusting VF dioptre could be helpful. Nice picture (second) by the way. Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 24, 2019 Author Share #7 Posted February 24, 2019 Advertisement (gone after registration) 29 minutes ago, mmradman said: Age is irelevantno but it helps with younger eyes and steadier hands. As Daryl suggested adjusting VF dioptre could be helpful. Nice picture (second) by the way. This is about as good as it going to get with the F1. Played with the diopter... still this is what I get. Focus on top HALF. In terns of steady hands... I'm OK I think (I'm a neurosurgeon) Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/294583-manual-focus-question/?do=findComment&comment=3690256'>More sharing options...
Chaemono Posted February 24, 2019 Share #8 Posted February 24, 2019 Lens looks a bit soft at the focus point. It could be a lemon. I would send it back. Quote Link to post Share on other sites More sharing options...
darylgo Posted February 24, 2019 Share #9 Posted February 24, 2019 35 minutes ago, Chaemono said: Lens looks a bit soft at the focus point. It could be a lemon. I would send it back. I was thinking the same, but I don't have experience with this lens. The mtf curves say it resolves less than 10 in this off center position at f1 however there appears to be astigmatism and the curves don't support that. The image is at close distance, so this could be normal as the curves are at infinity. Quote Link to post Share on other sites More sharing options...
ModernMan Posted February 24, 2019 Share #10 Posted February 24, 2019 (edited) Maybe curvature of focus field? On that lens, I'd guess that the the focus is not a plane at a particular distance, but rather more close to an approximately spherical surface a constant distance from the lens (in practice its probably a more complicated non-planar surface than that). In the absence of a planar focus field you would not expect the flat surface of the milk carton to be in uniform focus. On the other hand, some lenses are designed with a flat (planar) focus field, for applications like reproduction (photographing documents) and arial surveillance. Edited February 24, 2019 by ModernMan Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 24, 2019 Author Share #11 Posted February 24, 2019 Honestly at F1, and close focus, I'm not sure it get much better with this lens. Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 24, 2019 Author Share #12 Posted February 24, 2019 (edited) 2 hours ago, Chaemono said: Lens looks a bit soft at the focus point. It could be a lemon. I would send it back. The guy who sold it to me has had 6 of them... all different versions of the F1... and has been a Leica Ambassador. He says this one is the best he has had. Edited February 24, 2019 by Donzo98 Quote Link to post Share on other sites More sharing options...
thighslapper Posted February 24, 2019 Share #13 Posted February 24, 2019 (edited) 2 hours ago, Donzo98 said: In terns of steady hands... I'm OK I think (I'm a neurosurgeon) The worst intention tremor I have ever seen in my career as a doctor was a Neurosurgeon ...... luckily he steadied up at the last moment ..... He also had a habit of catheterising himself for long operations and then refusing to let any other theatre staff go to the loo...... 50/0.95 performance is not that good at minimum focus distance either ...... over a couple on meters and it is much better. Edited February 24, 2019 by thighslapper Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 24, 2019 Author Share #14 Posted February 24, 2019 (edited) 7 minutes ago, thighslapper said: The worst intention tremor I have ever seen in my career as a doctor was a Neurosurgeon ...... luckily he steadied up at the last moment ..... He also had a habit of catheterising himself for long operations and then refusing to let any other theatre staff go to the loo...... 50/0.95 performance is not that good at minimum focus distance either ...... over a couple on meters and it is much better. I didn't realize that you were a doctor too. What was your specialty?? and wow... just wow!! LOL. Not going the catheter route anytime soon Edited February 24, 2019 by Donzo98 Quote Link to post Share on other sites More sharing options...
mmradman Posted February 24, 2019 Share #15 Posted February 24, 2019 2 hours ago, Chaemono said: Lens looks a bit soft at the focus point. It could be a lemon. I would send it back. Don't know much about any of the Noctiluxes but i think my Summilux 75mm at max aperture has shallower DOF and i think i am getting slightly better results at closer focusing range. If that is the best out of the set of 6 i hate to think what others are like. So why would he sell you the best and keep others? Does he by chance also sells elephant skin camera bags? Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 24, 2019 Author Share #16 Posted February 24, 2019 (edited) 1 hour ago, mmradman said: Don't know much about any of the Noctiluxes but i think my Summilux 75mm at max aperture has shallower DOF and i think i am getting slightly better results at closer focusing range. If that is the best out of the set of 6 i hate to think what others are like. So why would he sell you the best and keep others? Does he by chance also sells elephant skin camera bags? He doesn't have 6 now... he upgraded optically over time. He sold me his only copy, and has dibs should I sell it. He is a friend... and don't think he mis-advertised the lens to me at all. I trust him. Here are two others shot today at F1 as well. I think the Nocti just sucks at MFD. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited February 25, 2019 by Donzo98 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/294583-manual-focus-question/?do=findComment&comment=3690410'>More sharing options...
Chaemono Posted February 25, 2019 Share #17 Posted February 25, 2019 (edited) vor 4 Stunden schrieb Donzo98: The guy who sold it to me has had 6 of them... all different versions of the F1... and has been a Leica Ambassador. He says this one is the best he has had. The only way I would believe him is if he shipped me all six and I got to choose. I used to have two Apo 50 Summicrons. Now I have one, I kept...the sharper of the two 🤣 and I’m not even a Leica Ambassador. Edit - I just saw the comment above. I would still not keep the lens. Don’t you have three other 50s? Edited February 25, 2019 by Chaemono Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 25, 2019 Author Share #18 Posted February 25, 2019 (edited) 35 minutes ago, Chaemono said: The only way I would believe him is if he shipped me all six and I got to choose. I used to have two Apo 50 Summicrons. Now I have one, I kept...the sharper of the two 🤣 and I’m not even a Leica Ambassador. Edit - I just saw the comment above. I would still not keep the lens. Don’t you have three other 50s? I have the 50 SL.. and two F1 Nocti’s. One of the 2 F1’s are going. Oh yeah... I have the Nikon Noct too. The 58 The 50 SL is INSANELY GOOD wide open!! Crazy Edited February 25, 2019 by Donzo98 1 Quote Link to post Share on other sites More sharing options...
Chaemono Posted February 25, 2019 Share #19 Posted February 25, 2019 Maybe it’s time for you to go a bit more wide, like 16-35 mm? 😁 Quote Link to post Share on other sites More sharing options...
Donzo98 Posted February 25, 2019 Author Share #20 Posted February 25, 2019 1 hour ago, Chaemono said: Maybe it’s time for you to go a bit more wide, like 16-35 mm? 😁 Check this out... much better than MFD. BTW... I have the CL and 11-23 for wide angle Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/294583-manual-focus-question/?do=findComment&comment=3690858'>More sharing options...
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