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by Vaman Kulkarni

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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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How does the focusing mechanism on a rangefinder camera work? [duplicate]

How does the focusing mechanism on a rangefinder camera work, optically and mechanically? How is the double image optically produced? How are they opto-mechanically aligned when the lens is focused?
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1answer
57 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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3answers
74 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
116 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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1answer
107 views

Manual focus lens on fixed focus camera?

Hello i have bought this camera: It is a lens type camera, but it has a FIXED focus. I read on the internet that if I buy and put a manual focus lens it will work? Is that true ? If it is true ...
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3answers
191 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
232 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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1answer
41 views

How to turn on manual focus for Sony α7R II?

There is an AF/MF | AEL switch on my Sony α7R II. If I switch this to AF/MF, and then press the button inside the switch, nothing happens on the viewfinder screen or back panel screen. How do I turn ...
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3answers
138 views

Does an offset split-focus screen exist?

I shoot a Nikon F3 SLR with a split-focus screen, and I do a lot of portraits with very shallow depth of fields (e.g. 50mm f2.8 at 0.5m). When I shoot a portrait I focus on the eye first, then ...
2
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2answers
273 views

Canon EF 24-105 IS L manual focusing - is it a problem?

I never really used manual focusing before, so I only noticed it now: when I switch to MF and slowly turn the focusing ring, nothing happens at all. The ring turns and turns but nothing else happens. ...
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2answers
423 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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2answers
138 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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1answer
190 views

Focus distance and infinity

When I play with M12 lenses (board lenses. Fixed fl. Aperture) , I can focus them to a distance and they have a certain depth of field. Objects within the Delta of field looks sharp. Can these lenses ...
3
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1answer
216 views

Is there any Fuji X to Nikon F adapter that works with AI-s lenses and doesn't require stop-down metering?

I am interested in an adapter that would allow me to use my Nikkor AI-s lenses on my Fuji X-series cameras. There are many such adapters, but they all seem to require stop down metering. I don't want ...
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1answer
175 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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2answers
664 views

Why won't my Nikon D5500 autofocus?

Total newbie here! I have a Nikon D5500 - when I bought the camera I had no clue there was a difference between auto focus and manual focus so I have ALWAYS manually focused the camera. I want to ...
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1answer
146 views

Is the 20mm f/3.5 AI-s NIKKOR focus well damped?

I have a 20mm f/4 AI-s. Personally I do not like the feel of the focus ring. It is not well damped and not silky smooth like my other AI-s lenses. It feels like my older non-AI lenses. I have no idea ...
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3answers
627 views

Understanding focus distance of Nikon f/1.8D lens with D5600 Camera

I took some sample photos using my Nikon D5600 camera with Nikon f/1.8D lens. I had to set the focus manually since this lens doesn't provide AF with my camera. My Question: The album of my sample ...
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0answers
64 views

What are the upper and lower limits of torque to safely operate a geared cinema lens?

I'm prototyping a stepper motor drive for cinema lenses. The idea is to mount a 32 pitch spur gear on a stepper motor shaft with an encoder. That assembly will turn the focus, iris, or zoom ring gears ...
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5answers
191 views

Can viewfinder type make an appreciable difference in manual focus?

I have a few old vintage lenses that I love to shoot with on my Canon T3. The obvious disadvantage is the challenge of getting sharply focuses images while focusing manually. I have great vision, but ...
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1answer
93 views

Determine the optimal dioptric correction

I just got a DSLR (a Nikon D610). On it, a dioptric correction is available, apparently ranging from -3 to +1 (cf. page 297 in the D610 manual). I'm wearing glasses, so I'm thinking: "Yay, I'll be ...
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1answer
443 views

Can I use focus point on manual mode?

I just got my first DSLR Canon 6d and Canon 50mm f1.8 lens . Because im begginer on photography i dont know anything but im tring to learn by watching youtube, but there are some questions i have, i ...
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2answers
404 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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1answer
64 views

Correct use of magnification for focus assist

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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3answers
199 views

Are there any DSLRs that are only manual mode?

I am just wondering if there are any DSLR camera models that are implemented with hyper simplicity, where you are given only full manual control, and dials for those parameters only? I think this ...
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1answer
224 views

Would the Nikon Dandelion Chip give AF Confirmation on bodies without AF Motor?

Few days ago, I found an old Nikon 28-80mm f/3.3-5.6 AF lens and when I paired it with my D5200, the body knew that the lens required an internal/in-built AF motor like the high-end bodies have, so it ...
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0answers
80 views

Focusing issue with Pentacon6/Biometar80

I recently bought a 'new', old Biometar 80 lens for my Pentacon 6 camera and did some preliminary tests with an adapter on my Nikon DSLR. Everything looked great, so I went on holiday with the new ...
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3answers
380 views

Why doesn't the focal length in EXIF change when I manually focus my DSLR?

I tried to take several pictures with a DSLR ( Nikon D3200 - 18 to 55mm zoom lens) with manual focus mode. I changed the manual focus randomly and clicked several pictures one after another. I was ...
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0answers
76 views

How to filter photos in Lightroom 6 by EffectiveMaxAperture EXIF tag?

I shoot with different non-CPU manual focus lenses and use LensTagger (Lightroom plugin) to write full lens name into EXIF. I also set up different MF lens "profiles" (called "non-CPU lens data" by ...
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0answers
128 views

infinity is not in focus? Nikkor AI-s 85mm F/2 [duplicate]

I received some used AI-s Nikkor lenses and one of them is the 85mm F/2. When I adjust the manual focus ring to infinity, nothing is in focus. It's just out of focus. I have to turn it just a hair ...
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3answers
2k views

I keep getting out of focus shots on manual focus - Why?

First off, I'm deliberately referencing this question and have read both the original question and every answer, and I just wanna make sure to note that I know how to focus manually and am in fact ...
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4answers
2k views

Focus to infinity with 10-18mm canon lens

I am using a canon 10-18mm wide angle lens on a Canon t3 camera. I want to try shooting some stars at night. So I want to focus the lens to infinity. But the lens has no hard stop to it, or any sort ...
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2answers
376 views

How do I get sharp focus of insects and animals with a camera that doesn't have manual focus control?

I have a Canon Powershot SX410 IS. I like this camera, but sometimes it doesn't focus on the object that I want to shoot. This situation occurs when a small object (such as an insect) is close to the ...
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1answer
70 views

Area focusing using manual focus

how to achieve area focus using manual focus mode. I tried using the infinity, but that did not turn out to be correct for me. I use a Nikon D3200. When I need all the subjects in focus, I put the ...
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1answer
214 views

Is there any rhyme or reason to the order of zoom and focus rings on lenses?

I have 3 zoom lenses, 2 Nikkors & a Tamron. AF-S NIKKOR 24-120mm f/4G ED VR AF-P DX NIKKOR 18-55mm f/3.5-5.6G VR [the kit lens] Tamron AF 70-300mm F/4-5.6 Di LD MACRO 1:2 All except the 24-...
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1answer
474 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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2answers
1k views

How can I see the exposure meter on my Nikon D3200 when shooting in manual-focus mode?

I have a Nikon D3200. I am experimenting with manual focusing on my kit lens. One thing I noticed was that when I am in manual focusing mode I don't see the exposure meter in the viewfinder. This ...
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1answer
327 views

Does a Ring-Ultrasonic EF-S lens require power to manually focus? (using with adapter)

Would the manual-focus-ring of a ring-ultrasonic EF-S lens (in particular the 17-55mm f/2.8 IS USM lens) focus even when the electronics are not working? Or would it require power to allow manual ...
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0answers
375 views

Sony Nex 6 - Why can't I change aperture in manual mode?

I am new with Sony Nex 6, why can't I adjust the aperture in manual mode mentioning not allowed in this mode
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1answer
345 views

Manual focus not consistent with Sony A7ii + Sony 55mm 1.8. Hidden setting?

I noticed that when I quickly turned my focus ring, the focus jump in focus was rather big: with a slight quick turn, I can almost jump between near focus and infinity. If I slowly turn the focus ...
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3answers
2k views

Can I fine tune the manual focus confirmation on my Nikon?

I haven't seen this answered anywhere, but does something or some software exist to fine tune manual (!!) focus confirmation (the dot at the bottom left) to more accurately represent focus? If I have ...
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1answer
685 views

Focus ring not working in D3300 with factory supplied 18 - 55 mm lens

I have this D3300 that was working completely fine. Someone was playing with the settings and I realized that I cannot focus on objects anymore. I don't think that there is something physically ...
2
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1answer
719 views

Supermoon: In focus and Out of focus

In focus moon Tonight I took several pictures of the Super Moon, I am a novice practicing in manual mode. Can someone explain why these photos are drastically different. The out of focus was shot ...
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2answers
212 views

What is the point of Auto Focus? [closed]

Although I started in the 90’s with the EOS system, I never used the AF inherent in EF lenses. As an amateur, I could take the time to take the best picture I could. I feel that I can get a better ...
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7answers
8k 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 ...
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2answers
239 views

How does (auto-/manual-)focus changing work?

I know when I change focal length of a zoom lens the physical length of it is changed. It's understandable: the optical parameters of the lens were changed. But what is going on when (auto-/manual-)...
4
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1answer
227 views

Where should I focus in landscape photography?

Not sure how relevant my question is, but I am a bit confused as where to focus in landscape photography. I have a D90 with Matrix mode, so when I try to take a photograph (say a house in the valley),...
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3answers
235 views

what is the best focusing mode for prime lens [closed]

what is the best focusing mode for 50mm prime lens. Manual mode or Auto mode to get crisp results ?
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3answers
1k views

Nikon D3300 with AF 50mm lens [closed]

I'm going to buy an AF 50mm lens for my Nikon D3300 because I do not have money to buy an AF-S lens. I plan to use it with manual focus. Will it be worth it and give good results ?
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1answer
363 views

How to avoid focus reset when switching to MF on mechanical focus-ring lenses with Olympus E-M10 Mark II?

Usually when one switches from AF to MF on the vast majority of cameras, the focus distance stays distance it was before switching. This way one can use AF to set the focus distance and then switch to ...