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Questions tagged [manual-focus]

Manual focus is the direct control of a camera/lens's focus by the photographer. This is generally accomplished by turning a focus ring which is mechanically coupled to the lens's focus, but some cameras without focus rings allow manual control over the autofocus motor.

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38 views

Are front lens focusing and unit focusing equivalent in triplet/tessar style lenses?

Some vintage tessar or triplet type lenses (eg such intended for viewfinder cameras) implement focusing by merely moving the front element or front cell. When adapting such lenses to other cameras, ...
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How to focus old manual viewfinder cameras?

I recently got two really old cameras, and I'm lost. The cameras are an Agfa Silette, and a Welta Weltax. I expected the cameras to have a focusing mechanism similar to rangefinger cameras, or split-...
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Is it possible to use a follow focus to add AF to MF lenses?

I recently switched from a EOS 7D to a Sony a6400 and since I have to buy new lenses I saw the huge difference in price between compatible AF and manual focus lenses. I also stumbled upon this: ...
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Why does this lens lose focus when you zoom in but not when you zoom out?

This is regarding the Sony 18-105 E-mount constant-aperture zoom. I took at photo at 18mm, focusing manually: I then zoomed to 105mm, and took another photo, keeping the same focus: Notice that the ...
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2answers
112 views

How do I find infinity focus with a kit lens when there's not enough light for optical verification? [duplicate]

I have a D7200 which I want to use at long distances in low light photography. The kit lens, a 18-140 does not have focus markers on it. Furthermore, the focus ring does not stop hard at any point. ...
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514 views

Why doesn't manual focus work with my Nikon D7200 and AF-S 300mm f/4 ED?

I have finally gotten myself a D7200 (2.017 & 1.04 firmware) and a 300mm f4/D AF-S (non VR version). My lens's serial number is 33xxxx. AF works, but manual focus does not work. I have tried ...
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1answer
738 views

Using a manual lens on D5100

I am an amateur photographer and I am currently using a Nikon D5100 with the Nikkor 35mm f/1.8G lens. I have been thinking of getting an old manual focus lens like a 50mm or an 85mm, because they ...
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Does any manufacturer's EVF camera (or alternative firmware) implement multi-coloured/false-color focus peaking and/or histogram position?

It would be logical and helpful to use false colours (maybe layered on a b/w EVF display) to indicate how strong a peaked contrast is. Alternatively, such could be a more precise way to show eg zone ...
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119 views

How to handle frequent, uncontrolled lighting changes?

I was taking photos of birds in a sanctuary. There I experienced few challenges. I want to know how to handle these. There were frequent daylight variations as it was partly cloudy. It was a bright ...
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With an old manual lens and modern digital camera, sharp image on the matte focusing screen, blurred one on the sensor

I tried to use an old Practicar lens 50mm/1.8 with Canon 450D, using an appriopriate adapter ring Practica B/Canon EF. Of course, this lens is completely manual in this configuration. Via the ...
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4answers
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How do fixed lenses “focus” on things at different distances? [duplicate]

I'm trying to understand depth of field and I'm struggling. If I'm playing with a 50mm fixed lens, and I alter its focus using the little ring around the lens, what is actually changing in terms of ...
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How will old M42 lenses work on a Nikon camera?

I wanted to get some cheap old lenses to use on my Nikon DX DSLR (D3100). However, Nikon has one of the greatest flange distances of all manufacturers, which means that most lenses I can buy (M42 ...
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8answers
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How can I get sharp manual focus despite poor eyesight?

I suffer from astigmatism. It's only mild, though I feel it's affecting what I'm seeing when looking through the viewfinder. Frequently, after shooting a photo with my Canon EOS 7D, I'll load it into ...
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2answers
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Is minimum focus distance (MFD) really minimum?

On my prime lense the barrel shows the "minimum" focus distance (MFD). According to the definition you find on internet you cannot focus an object closer to this distance (measure from the sensor ...
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1answer
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Auto-focus in Nikon D3100 doesn't work and i can't take pictures

When on autofocus my camera will not focus. The lens will do the twisting movement, go in and out of focus and then stay out of focus. Then it won't even take a photo. In addition, when on manual ...
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1answer
127 views

How to nail focus with Digital Split Image on FujiFilm X-Series cameras?

FujiFilm X-Series cameras offer Digital Split Image focus assist mode. The manual provides inadequate usage instruction, stating: Digital Split Image: Displays a split image in the center of the ...
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3answers
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How to nail focus with Peak Highlight on FujiFilm X-Series cameras?

FujiFilm X-Series cameras offer Focus Peak Highlight assist mode. However, the manual provides inadequate usage instruction, stating: Focus Peak Highlight: Highlights high-contrast outlines. Rotate ...
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2answers
232 views

How to correctly use magnification for focus assist on FujiFilm X-E1?

I have a FujiFilm X-E1 mirrorless digital camera that has a magnification feature designed to assist with manual focusing. The documentation tells me the following: Manual Focusing Methods In ...
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2answers
168 views

How to perform non-center focusing using common film SLR camera?

I have a Nikon FM2 camera with Nikkor 50/1.4D lens. Is there a way to focus on the area that is not center? This can be easily done with digital camera as Nikon D750, where we can just use focus ...
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1answer
65 views

How do adjustments to flange focal distance affect front focal distance?

I am using a Nikon Micro-Nikkor F-mount lens with 105mm fixed focal length in a custom optical set-up (F-mount adapter to custom optics). This means that my flange focal distance is only an ...
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7answers
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How can I get everything in focus? (Why can't my camera just use all of its focus points at the same time?)

I have a Canon 550D with 70-200 f4 and 50mm prime lenses. Although the camera has built-in 9 focal points, I sometimes face a strange problem. Here's a sample photo: In reference to the above pic, ...
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1answer
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How to use Focus Magnification on Sony A7 with adapted lenses?

When I bought the Sony A7 I put a Kiwi adapter on it and tried using my old 24mm and 28-200 and both Focus Peaking and Focus Zoom still worked. Today with that same adapter I was looking at a Nikon 50 ...
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220 views

Is it normal for EF 24-105/4L IS to autofocus when switched to manual focus?

I'm using a Canon 6D mark II. I recently got a Canon EF 24-105mm f/4L. I wanted to try using manual focus, so I switched the lens to manual focus, but it keeps auto focusing when I half press shutter ...
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1answer
96 views

What focal-length setting to use for in-body image stabilization with manual zoom lenses?

The FujiFilm X-H1 has in-body image stabilization that requires the focal length to be set on the camera when using manual-focus lenses with adapters. This is a bit cumbersome with zoom lenses, and I ...
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1answer
72 views

How to set manual focus lens when asking others to take pictures for me?

I've been using manual focus lenses. In a few cases, I wanted to be in a picture, but it takes too long to explain how to focus. Even people who have used manual-focus lenses in the past, who should ...
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4answers
176 views

What does focusing past infinity look like?

Would it nearly instantly become unfocused, or would it be more or less gradual?
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3answers
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Why am I allowed to turn my focusing ring beyond infinity?

Is there a good reason why I can turn the focusing ring on my lenses beyond infinity mark on focusing scale? Following recent questions about focusing in the dark (here and here), it sounds like a ...
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0answers
203 views

What would cause an AF confirmation light to go on and off as I approach correct focus?

I'm using two cameras: Canon EOS 400D (Digital Rebel XTi) and Canon EOS 450D (EOS Rebel XSi). 450D was more heavily used than 400D. Not so long ago I noticed that 450D's autofocus system works not ...
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Can you determine if focus is sharp without diopter adjustment if your sight is imperfect?

I've already encountered this question about wearing glasses as a photographer. A more specific question I have is as follows. If your eyesight is not perfect, or your glasses and/or contact lenses ...
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1answer
2k views

How is the focus distance of a Leica M rangefinder lens mechanically transmitted to the body?

Basically speaking, when a camera focuses on something, it focuses on a certain distance. That means everything that is this distance away from the camera will be in focus and sharp in the image. ...
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How to enable focus indication when focusing manually on a Canon 5D MkII?

I've read that it is possible to have a lamp lit up when your picture is in focus when you are focussing manually. How do I enable this feature on a Canon 5D MkII?
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Why does some lenses have red focus points on their focus rings? [duplicate]

A typical lens have white focus indicators on their lenses [5m 50m and infinity] but some have red points for 85m and farther and some lenses have a red curve instead of numbers. What are these red ...
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3answers
227 views

Can I get a manual focus lens for my Canon PowerShot camera?

I have recently bought myself a camera, a Canon PowerShot SX530, and I noticed that the focus on this camera is difficult to adjust and clarify. I am looking to buy a low priced manual focus lens, I ...
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1answer
7k views

Why is my Fuji X camera stuck in manual focus?

I have a Fujifilm X series camera with one of the nice prime lenses, and it seems to be stuck in manual focus mode. The switch on the camera is on S, and I flipped it back and forth several times, but ...
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219 views

Is there an adapter to allow a camera to control focus or aperture of a manual focus & aperture lens?

I recently bought the Sony Alpha a7. In a bid to get an affordable portrait lens, I rushed to get the Rokinon 85mm f/1.4 only to realize that there is no communication between the camera and lens. Now ...
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0answers
731 views

Sony A7iii how to permanently display focus distance in MF mode

I'm doing mostly landscape photography and the manual focus is a thing for me. Since the native Sony lenses all have focus by wire, the MF experience is poor. I never know if my focus is still at ...
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1answer
77 views

Will a split prism indicator still work if installed well off center?

There are known hacks about retrofitting trimmed-to-size surplus full-frame split prism screens to modern DSLRs. However, problems with spot metering are also commonly reported with such setups. The ...
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3answers
1k views

My Nikon D50 refuses to take pictures after I disabled auto focus

I just got a second hand Nikon D50. This is first reflex camera I ever had. I am trying to take macro of an electrical component in relatively dark room. These are the settings on my top display: I ...
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What makes the difference on partially and fully visible moon?

While I'm satisfied (despite the fringe) with shoots from a partially visible moon with a cheap 500 mm lens: 1/100 ISO 100 f/? I cannot understand why the image quality is extremely diminished when ...
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3answers
2k views

How can I effectively manually focus a Nikon D3300 using the viewfinder? [duplicate]

I'been having a bad time trying to shoot photos with manual focus. When I'm trying to shoot a picture, using the viewfinder it's really hard to see how sharp is the picture you see through the ...
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2answers
551 views

Focused properly and microadjusted lens give blurry image on Canon 80D and quite fine detail on 350D

I'm an unhappy owner of brand new Canon 80D. I still have 350D which served me for nearly a decade. I use the same 24-105 1:4 L IS lens with both of them. It turned out that lens is blurry. I've ...
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Nikon D50 and Nikkor AI manual focus lens

I have a D50 and I would like to use my manual focus lens (a Nikkor 50mm f/1.4 AI) from my analog SLR. It fits on the mount and all seems to be good, but the status on the LED display blinks F - - ...
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1answer
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How to manual focus Nikon Coolscan 4000 using Vuescan?

How to be sure that the scanner (Nikon Coolscan 4000) focuses correctly and if not, how can I manually focus it using Vuescan?
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3k views

Tamron lens focusing problems?

I own a Tamron 18-270mm F/3,5-6,3 Di II VC PZD lens - a fabulous lens, but since I got it (around Christmas time), the autofocus has been playing up; see below image. EXIF is as follows: 270mm, ...
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241 views

How to prevent autofocus but retain tethered focus control?

I'm using Darktable (on Linux) with Canon 1100D in tethered shooting mode. I found out that from live view section I can control focus in big or small steps. This all works nicely, and I can see the ...
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1answer
363 views

Adjust manual focus for sharper images with Sony RX0,for aerial photography

I am taking photos around 80m altitudes (with Sony RX0) with a moving drone,Shutter Speed is set to 1/1000 to prevent blurs,I want to take sharp images with manual focus,how should I adjust settings ?
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106 views

Why doesn't the focus stay intact after I change the lens setting to manual on my Canon 77D?

My Canon 77D exhibits a strange behaviour with any lens: I half press the shutter button to trigger auto-focus I then change the lens switch from Auto to Manual, while holding the trigger button ...
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2answers
315 views

Manual focus in A mode can harm my lens? [duplicate]

I use 18-140 Nikkor . This lens have two A & M focus mode and this lens is AF-S that mean when auto focus is enable the focus ring dose't move. If i do manual focus when the lens is at A mode , ...
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2answers
436 views

What settings should I use for a Tamron manual focus lens on a Nikon DSLR?

I have a Nikon D5100 (which has no AF motor in the body) and a Tamron 90mm SP macro lens. The lens has no AF focus motor either (or at least it doesn't seem to be compatible with the body), and has an ...
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7answers
9k views

How did photography work before auto-focus was invented?

Having just spent some time reading questions about auto-focus, I came up with a question of my own: How did cameras even work before auto-focus technology was invented? Presumably everybody used ...